diff --git a/src/main/java/com/umc/linkyou/converter/CurationConverter.java b/src/main/java/com/umc/linkyou/converter/CurationConverter.java
index 302c19af..35056102 100644
--- a/src/main/java/com/umc/linkyou/converter/CurationConverter.java
+++ b/src/main/java/com/umc/linkyou/converter/CurationConverter.java
@@ -1,21 +1,90 @@
 package com.umc.linkyou.converter;
 
+import com.umc.linkyou.domain.Curation;
+import com.umc.linkyou.domain.CurationSectionInfo;
+import com.umc.linkyou.domain.Linku;
+import com.umc.linkyou.domain.classification.Category;
 import com.umc.linkyou.domain.classification.Domain;
+import com.umc.linkyou.domain.enums.CurationLinkuType;
 import com.umc.linkyou.domain.mapping.CurationLinku;
+import com.umc.linkyou.domain.mapping.UsersLinku;
+import com.umc.linkyou.web.dto.curation.CurationDetailResponse;
+import com.umc.linkyou.web.dto.curation.CurationLatestResponse;
+import com.umc.linkyou.web.dto.curation.CurationListResponse;
+import com.umc.linkyou.web.dto.curation.CurationSectionResponse;
 import com.umc.linkyou.web.dto.curation.RecommendedLinkResponse;
 
+import java.util.List;
+
 public class CurationConverter {
 
     public static RecommendedLinkResponse toRecommendedLinkResponse(CurationLinku entity) {
-        Domain domain = entity.getUsersLinku() != null
-                ? entity.getUsersLinku().getLinku().getDomain()
-                : null;
+        UsersLinku usersLinku = entity.getUsersLinku();
+        Linku linku = usersLinku != null ? usersLinku.getLinku() : null;
+        Domain domain = linku != null ? linku.getDomain() : null;
+        Category category = linku != null ? linku.getCategory() : null;
         return RecommendedLinkResponse.builder()
+                .userLinkuId(usersLinku != null ? usersLinku.getUserLinkuId() : null)
                 .url(entity.getUrl())
                 .title(entity.getTitle())
                 .domain(domain != null ? domain.getName() : null)
                 .domainImageUrl(domain != null ? domain.getImageUrl() : null)
                 .imageUrl(entity.getImageUrl())
+                .categories(category != null ? List.of(category.getCategoryName()) : null)
+                .type(CurationLinkuType.INTERNAL)
+                .build();
+    }
+
+    // 외부 추천: 도메인 브랜딩(Domain)이 URL 기반 별도 조회로 해석된 경우
+    public static RecommendedLinkResponse toRecommendedLinkResponse(
+            String url, String title, String imageUrl, Domain domain) {
+        return RecommendedLinkResponse.builder()
+                .url(url)
+                .title(title)
+                .imageUrl(imageUrl)
+                .domain(domain != null ? domain.getName() : null)
+                .domainImageUrl(domain != null ? domain.getImageUrl() : null)
+                .type(CurationLinkuType.EXTERNAL)
+                .build();
+    }
+
+    // 연도별 히스토리 항목 변환 (해당 월에 큐레이션이 없으면 month만 채운다)
+    public static CurationListResponse toCurationListResponse(Curation curation, String month, String thumbnailUrl) {
+        if (curation == null) {
+            return CurationListResponse.builder().month(month).build();
+        }
+        return CurationListResponse.builder()
+                .curationId(curation.getCurationId())
+                .month(month)
+                .thumbnailUrl(thumbnailUrl)
+                .build();
+    }
+
+    public static CurationLatestResponse toCurationLatestResponse(Curation curation, String thumbnailUrl) {
+        return CurationLatestResponse.builder()
+                .curationId(curation.getCurationId())
+                .month(curation.getBaseMonth())
+                .thumbnailUrl(thumbnailUrl)
+                .build();
+    }
+
+    public static CurationSectionResponse toCurationSectionResponse(CurationSectionInfo info) {
+        return CurationSectionResponse.builder()
+                .section(info.getSectionNumber())
+                .title(info.getTitle())
+                .description(info.getDescription())
+                .imageUrl(info.getImageUrl())
+                .build();
+    }
+
+    public static CurationDetailResponse toCurationDetailResponse(Curation curation) {
+        return CurationDetailResponse.builder()
+                .curationId(curation.getCurationId())
+                .month(curation.getBaseMonth())
+                .headerMent(curation.getHeaderMent())
+                .footerMent(curation.getFooterMent())
+                .mentReady(curation.getHeaderMent() != null && !curation.getHeaderMent().isBlank()
+                        && curation.getFooterMent() != null && !curation.getFooterMent().isBlank())
                 .build();
     }
 }
diff --git a/src/main/java/com/umc/linkyou/domain/enums/CurationLinkuType.java b/src/main/java/com/umc/linkyou/domain/enums/CurationLinkuType.java
index cf4568d4..b10a92bd 100644
--- a/src/main/java/com/umc/linkyou/domain/enums/CurationLinkuType.java
+++ b/src/main/java/com/umc/linkyou/domain/enums/CurationLinkuType.java
@@ -1,6 +1,6 @@
 package com.umc.linkyou.domain.enums;
 
 public enum CurationLinkuType {
-    RECOMMENDED,
+    INTERNAL,
     EXTERNAL
 }
diff --git a/src/main/java/com/umc/linkyou/domain/mapping/CurationLinku.java b/src/main/java/com/umc/linkyou/domain/mapping/CurationLinku.java
index 01570c4d..2da0f165 100644
--- a/src/main/java/com/umc/linkyou/domain/mapping/CurationLinku.java
+++ b/src/main/java/com/umc/linkyou/domain/mapping/CurationLinku.java
@@ -2,6 +2,7 @@
 
 import com.umc.linkyou.domain.Curation;
 import com.umc.linkyou.domain.enums.CurationLinkuType;
+import com.umc.linkyou.utils.UrlUtils;
 import jakarta.persistence.*;
 import lombok.*;
 import org.hibernate.annotations.OnDelete;
@@ -31,7 +32,7 @@ public class CurationLinku {
 
     @Column(name = "type", nullable = false)
     @Enumerated(EnumType.STRING)
-    private CurationLinkuType type; // RECOMMENDED / EXTERNAL
+    private CurationLinkuType type; // INTERNAL / EXTERNAL
 
     // 외부추천용 최소 컬럼
     @Column(name = "url", columnDefinition = "TEXT")
@@ -43,15 +44,12 @@ public class CurationLinku {
     @Column(name = "image_url", length = 1024)
     private String imageUrl;
 
-    @Column(name = "url_normalized", length = 2048, insertable = false, updatable = false)
-    private String urlNormalized;
-
     // 팩토리 메서드
     public static CurationLinku ofExternal(Curation curation, String url, String title, String imageUrl) {
         return CurationLinku.builder()
                 .curation(curation)
                 .type(CurationLinkuType.EXTERNAL)
-                .url(url)
+                .url(UrlUtils.normalizeUrl(url))
                 .title(title)
                 .imageUrl(imageUrl)
                 .build();
@@ -61,7 +59,7 @@ public static CurationLinku ofInternal(Curation curation, UsersLinku usersLinku,
         return CurationLinku.builder()
                 .curation(curation)
                 .usersLinku(usersLinku)
-                .type(CurationLinkuType.RECOMMENDED)
+                .type(CurationLinkuType.INTERNAL)
                 .url(usersLinku.getLinku().getLinkuUrl())
                 .title(usersLinku.getLinku().getTitle())
                 .imageUrl(imageUrl)
diff --git a/src/main/java/com/umc/linkyou/repository/UserLinkuRepository/UsersLinkuRepository.java b/src/main/java/com/umc/linkyou/repository/UserLinkuRepository/UsersLinkuRepository.java
index 49e0672b..edb0ceec 100644
--- a/src/main/java/com/umc/linkyou/repository/UserLinkuRepository/UsersLinkuRepository.java
+++ b/src/main/java/com/umc/linkyou/repository/UserLinkuRepository/UsersLinkuRepository.java
@@ -43,6 +43,14 @@ List<UsersLinku> findAllByUserIdAndCreatedAtBetween(
 
     List<UsersLinku> findByUser_IdAndLastViewedAtIsNull(Long userId);
 
+    // 후보 URL 중 사용자가 이미 저장한 것을 찾는다 (외부 추천에 userLinkuId를 채워주기 위함)
+    @Query("""
+            SELECT ul FROM UsersLinku ul
+            JOIN FETCH ul.linku l
+            WHERE ul.user.id = :userId AND l.linkuUrl IN :urls
+            """)
+    List<UsersLinku> findByUserIdAndLinkuUrlIn(@Param("userId") Long userId, @Param("urls") List<String> urls);
+
     // 해당 기간 유저가 저장한 링크의 감정별 저장 횟수
     @Query("""
             SELECT new com.umc.linkyou.repository.dto.TagCountRow(ul.emotion.emotionId, COUNT(ul))
diff --git a/src/main/java/com/umc/linkyou/repository/curationRepository/CurationLinkuRepository.java b/src/main/java/com/umc/linkyou/repository/curationRepository/CurationLinkuRepository.java
index 6b1647db..8f3e4c19 100644
--- a/src/main/java/com/umc/linkyou/repository/curationRepository/CurationLinkuRepository.java
+++ b/src/main/java/com/umc/linkyou/repository/curationRepository/CurationLinkuRepository.java
@@ -24,6 +24,7 @@ List<CurationLinku> findByCurationIdAndType(
             JOIN FETCH cl.usersLinku ul
             JOIN FETCH ul.linku l
             LEFT JOIN FETCH l.domain
+            LEFT JOIN FETCH l.category
             WHERE cl.curation.curationId = :curationId AND cl.type = :type
             """)
     List<CurationLinku> findWithDomainByCurationIdAndType(
diff --git a/src/main/java/com/umc/linkyou/repository/curationRepository/CurationSectionInfoRepository.java b/src/main/java/com/umc/linkyou/repository/curationRepository/CurationSectionInfoRepository.java
index 0117830d..b6247246 100644
--- a/src/main/java/com/umc/linkyou/repository/curationRepository/CurationSectionInfoRepository.java
+++ b/src/main/java/com/umc/linkyou/repository/curationRepository/CurationSectionInfoRepository.java
@@ -6,6 +6,7 @@
 import org.springframework.data.repository.query.Param;
 
 import java.util.List;
+import java.util.Optional;
 
 public interface CurationSectionInfoRepository extends JpaRepository<CurationSectionInfo, Long> {
 
@@ -15,4 +16,6 @@ public interface CurationSectionInfoRepository extends JpaRepository<CurationSec
             ORDER BY cs.sectionNumber ASC
             """)
     List<CurationSectionInfo> findAllByMonth(@Param("month") String month);
+
+    Optional<CurationSectionInfo> findByMonthAndSectionNumber(String month, int sectionNumber);
 }
diff --git a/src/main/java/com/umc/linkyou/service/curation/CurationServiceImpl.java b/src/main/java/com/umc/linkyou/service/curation/CurationServiceImpl.java
index 860ec031..e20ad9fd 100644
--- a/src/main/java/com/umc/linkyou/service/curation/CurationServiceImpl.java
+++ b/src/main/java/com/umc/linkyou/service/curation/CurationServiceImpl.java
@@ -2,10 +2,11 @@
 
 import com.umc.linkyou.apiPayload.code.status.user.UserErrorStatus;
 import com.umc.linkyou.apiPayload.exception.GeneralException;
+import com.umc.linkyou.converter.CurationConverter;
 import com.umc.linkyou.domain.Curation;
+import com.umc.linkyou.domain.CurationSectionInfo;
 import com.umc.linkyou.domain.Users;
 import com.umc.linkyou.service.curation.ment.CurationMentMaterializer;
-import com.umc.linkyou.service.curation.utils.ThumbnailUrlProvider;
 import com.umc.linkyou.service.curation.recommend.external.ExternalRecommendMaterializer;
 import com.umc.linkyou.service.curation.recommend.internal.InternalRecommendMaterializer;
 import com.umc.linkyou.apiPayload.code.status.curation.CurationErrorStatus;
@@ -38,7 +39,6 @@ public class CurationServiceImpl implements CurationService {
     private final UserRepository userRepository;
     private final CurationRepository curationRepository;
     private final CurationSectionInfoRepository curationSectionInfoRepository;
-    private final ThumbnailUrlProvider thumbnailUrlProvider;
     private final ExternalRecommendMaterializer externalRecommendMaterializer;
     private final InternalRecommendMaterializer internalRecommendMaterializer;
     private final CurationMentMaterializer curationMentMaterializer;
@@ -90,17 +90,8 @@ public List<CurationListResponse> getCurationList(Long userId, int year) {
         for (int m = 1; m <= 12; m++) {
             String month = String.format("%d-%02d", year, m);
             Curation c = existing.get(month);
-            if (c != null) {
-                result.add(CurationListResponse.builder()
-                        .curationId(c.getCurationId())
-                        .month(month)
-                        .thumbnailUrl(thumbnailUrlProvider.getUrlForMonth(month))
-                        .build());
-            } else {
-                result.add(CurationListResponse.builder()
-                        .month(month)
-                        .build());
-            }
+            String thumbnailUrl = c != null ? getSection1ImageUrl(month) : null;
+            result.add(CurationConverter.toCurationListResponse(c, month, thumbnailUrl));
         }
         return result;
     }
@@ -110,11 +101,14 @@ public List<CurationListResponse> getCurationList(Long userId, int year) {
     @Transactional(readOnly = true)
     public Optional<CurationLatestResponse> getLatestCuration(Long userId) {
         return curationRepository.findLatestByUserId(userId)
-                .map(curation -> CurationLatestResponse.builder()
-                        .curationId(curation.getCurationId())
-                        .month(curation.getBaseMonth())
-                        .thumbnailUrl(thumbnailUrlProvider.getUrlForMonth(curation.getBaseMonth()))
-                        .build());
+                .map(curation -> CurationConverter.toCurationLatestResponse(
+                        curation, getSection1ImageUrl(curation.getBaseMonth())));
+    }
+
+    private String getSection1ImageUrl(String month) {
+        return curationSectionInfoRepository.findByMonthAndSectionNumber(month, 1)
+                .map(CurationSectionInfo::getImageUrl)
+                .orElse(null);
     }
 
     // 월별 섹션 정보 조회 (제목, 설명, 대표 이미지)
@@ -124,12 +118,7 @@ public List<CurationSectionResponse> getCurationSections(String month) {
         return curationSectionInfoRepository
                 .findAllByMonth(month)
                 .stream()
-                .map(s -> CurationSectionResponse.builder()
-                        .section(s.getSectionNumber())
-                        .title(s.getTitle())
-                        .description(s.getDescription())
-                        .imageUrl(s.getImageUrl())
-                        .build())
+                .map(CurationConverter::toCurationSectionResponse)
                 .toList();
     }
 
@@ -147,13 +136,6 @@ public CurationDetailResponse getCurationDetail(Long userId, Long curationId) {
             throw new GeneralException(CurationErrorStatus._CURATION_FORBIDDEN);
         }
 
-        return CurationDetailResponse.builder()
-                .curationId(curation.getCurationId())
-                .month(curation.getBaseMonth())
-                .headerMent(curation.getHeaderMent())
-                .footerMent(curation.getFooterMent())
-                .mentReady(curation.getHeaderMent() != null && !curation.getHeaderMent().isBlank()
-                        && curation.getFooterMent() != null && !curation.getFooterMent().isBlank())
-                .build();
+        return CurationConverter.toCurationDetailResponse(curation);
     }
 }
diff --git a/src/main/java/com/umc/linkyou/service/curation/recommend/CurationRecommendBuilderServiceImpl.java b/src/main/java/com/umc/linkyou/service/curation/recommend/CurationRecommendBuilderServiceImpl.java
index 39bd7ffb..fb67aab6 100644
--- a/src/main/java/com/umc/linkyou/service/curation/recommend/CurationRecommendBuilderServiceImpl.java
+++ b/src/main/java/com/umc/linkyou/service/curation/recommend/CurationRecommendBuilderServiceImpl.java
@@ -5,6 +5,8 @@
 import com.umc.linkyou.converter.CurationConverter;
 import com.umc.linkyou.domain.Curation;
 import com.umc.linkyou.domain.enums.CurationLinkuType;
+import com.umc.linkyou.domain.mapping.UsersLinku;
+import com.umc.linkyou.repository.UserLinkuRepository.UsersLinkuRepository;
 import com.umc.linkyou.repository.curationRepository.CurationLinkuRepository;
 import com.umc.linkyou.repository.curationRepository.CurationRepository;
 import com.umc.linkyou.service.curation.recommend.external.ExternalRecommendMaterializer;
@@ -17,6 +19,7 @@
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -29,6 +32,7 @@ public class CurationRecommendBuilderServiceImpl implements CurationRecommendBui
 
     private final CurationRepository curationRepository;
     private final CurationLinkuRepository curationLinkuRepository;
+    private final UsersLinkuRepository usersLinkuRepository;
     private final ExternalRecommendReader externalRecommendReader;
     private final InternalRecommendMaterializer internalRecommendMaterializer;
     private final ExternalRecommendMaterializer externalRecommendMaterializer;
@@ -43,7 +47,7 @@ public List<RecommendedLinkResponse> buildRecommendedLinks(Long userId, Long cur
         }
 
         List<RecommendedLinkResponse> internal = curationLinkuRepository
-                .findWithDomainByCurationIdAndType(curationId, CurationLinkuType.RECOMMENDED)
+                .findWithDomainByCurationIdAndType(curationId, CurationLinkuType.INTERNAL)
                 .stream()
                 .map(CurationConverter::toRecommendedLinkResponse)
                 .limit(INTERNAL_LIMIT)
@@ -59,6 +63,21 @@ public List<RecommendedLinkResponse> buildRecommendedLinks(Long userId, Long cur
             externalRecommendMaterializer.generateExternalAsync(curationId);
         }
 
+        // 외부 추천이 이미 저장된 링크와 같은 URL이면, 외부 추천인 채로 유지하되 userLinkuId만 채워준다
+        if (!external.isEmpty()) {
+            List<UsersLinku> savedMatches = usersLinkuRepository.findByUserIdAndLinkuUrlIn(
+                    userId, external.stream().map(RecommendedLinkResponse::getUrl).toList());
+            if (!savedMatches.isEmpty()) {
+                Map<String, Long> urlToUserLinkuId = savedMatches.stream()
+                        .collect(Collectors.toMap(ul -> ul.getLinku().getLinkuUrl(), UsersLinku::getUserLinkuId));
+                external = external.stream()
+                        .map(ex -> urlToUserLinkuId.containsKey(ex.getUrl())
+                                ? ex.toBuilder().userLinkuId(urlToUserLinkuId.get(ex.getUrl())).build()
+                                : ex)
+                        .toList();
+            }
+        }
+
         List<RecommendedLinkResponse> result = new ArrayList<>(INTERNAL_LIMIT + EXTERNAL_LIMIT);
         result.addAll(internal);
 
diff --git a/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendReader.java b/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendReader.java
index 98dae59a..45be35ee 100644
--- a/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendReader.java
+++ b/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendReader.java
@@ -1,5 +1,6 @@
 package com.umc.linkyou.service.curation.recommend.external;
 
+import com.umc.linkyou.converter.CurationConverter;
 import com.umc.linkyou.domain.classification.Domain;
 import com.umc.linkyou.domain.enums.CurationLinkuType;
 import com.umc.linkyou.domain.mapping.CurationLinku;
@@ -47,11 +48,8 @@ public List<RecommendedLinkResponse> read(Long curationId) {
 
         if (tails.isEmpty()) {
             return items.stream()
-                    .map(item -> RecommendedLinkResponse.builder()
-                            .url(item.url())
-                            .title(item.title())
-                            .imageUrl(item.imageUrl())
-                            .build())
+                    .map(item -> CurationConverter.toRecommendedLinkResponse(
+                            item.url(), item.title(), item.imageUrl(), null))
                     .toList();
         }
 
@@ -65,13 +63,8 @@ public List<RecommendedLinkResponse> read(Long curationId) {
                             .filter(Objects::nonNull)
                             .findFirst()
                             .orElse(null);
-                    return RecommendedLinkResponse.builder()
-                            .url(item.url())
-                            .title(item.title())
-                            .domain(domain != null ? domain.getName() : null)
-                            .domainImageUrl(domain != null ? domain.getImageUrl() : null)
-                            .imageUrl(item.imageUrl())
-                            .build();
+                    return CurationConverter.toRecommendedLinkResponse(
+                            item.url(), item.title(), item.imageUrl(), domain);
                 })
                 .toList();
     }
diff --git a/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendWorker.java b/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendWorker.java
index a434c46a..5b9ca68e 100644
--- a/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendWorker.java
+++ b/src/main/java/com/umc/linkyou/service/curation/recommend/external/ExternalRecommendWorker.java
@@ -7,15 +7,19 @@
 import com.umc.linkyou.domain.enums.CurationLinkuType;
 import com.umc.linkyou.domain.enums.KeywordType;
 import com.umc.linkyou.domain.mapping.CurationLinku;
+import com.umc.linkyou.domain.mapping.UsersLinku;
 import com.umc.linkyou.infra.ai.AiSearchService;
 import com.umc.linkyou.infra.ai.dto.ExternalLinkResultDTO;
 import com.umc.linkyou.infra.ai.dto.ExternalSearchRequest;
+import com.umc.linkyou.infra.net.SafeUrlFetcher;
+import com.umc.linkyou.repository.UserLinkuRepository.UsersLinkuRepository;
 import com.umc.linkyou.repository.curationRepository.CurationLinkuRepository;
 import com.umc.linkyou.repository.curationRepository.CurationRepository;
 import com.umc.linkyou.repository.classification.SituationRepository;
 import com.umc.linkyou.repository.keywordRepository.KeywordMonthlyCountRepository;
 import com.umc.linkyou.service.common.EmotionMapper;
 import com.umc.linkyou.service.common.ImageFetchService;
+import com.umc.linkyou.utils.UrlUtils;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.PageRequest;
@@ -24,7 +28,9 @@
 
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.concurrent.CompletableFuture;
+import java.util.stream.Collectors;
 
 @Service
 @RequiredArgsConstructor
@@ -32,14 +38,18 @@
 public class ExternalRecommendWorker {
 
     private static final int EXTERNAL_LIMIT = 5;
+    // 도달 불가/봇 차단으로 걸러지는 링크를 대비해 필요한 개수보다 여유 있게 요청한다.
+    private static final int EXTERNAL_SEARCH_LIMIT = 8;
 
     private final CurationRepository curationRepository;
     private final CurationLinkuRepository curationLinkuRepository;
+    private final UsersLinkuRepository usersLinkuRepository;
     private final KeywordMonthlyCountRepository keywordMonthlyCountRepository;
     private final AiSearchService aiSearchService;
     private final ImageFetchService imageFetchService;
     private final EmotionMapper emotionMapper;
     private final SituationRepository situationRepository;
+    private final SafeUrlFetcher safeUrlFetcher;
 
     @Transactional
     public void generateExternal(Long curationId) {
@@ -65,7 +75,7 @@ public void generateExternal(Long curationId) {
         try {
             long t0 = System.currentTimeMillis();
             external = aiSearchService.searchExternalLinks(
-                    new ExternalSearchRequest(topTags, EXTERNAL_LIMIT, jobName, gender));
+                    new ExternalSearchRequest(topTags, EXTERNAL_SEARCH_LIMIT, jobName, gender));
             log.info("[AI] 외부 추천 응답 elapsed={}ms", System.currentTimeMillis() - t0);
         } catch (Exception e) {
             log.warn("[AI] 외부 추천 실패, 기존 데이터 유지 curationId={}", curationId, e);
@@ -77,9 +87,39 @@ public void generateExternal(Long curationId) {
             return;
         }
 
-        // 이미지 fetch 병렬 실행
-        List<Map.Entry<ExternalLinkResultDTO, CompletableFuture<String>>> tasks = external.stream()
+        // 도달 불가/봇 차단 링크는 즉시 탈락시킨다.
+        List<ExternalLinkResultDTO> reachable = external.stream()
                 .filter(item -> item.getUrl() != null && !item.getUrl().isBlank())
+                .filter(item -> safeUrlFetcher.isReachable(item.getUrl()))
+                .toList();
+
+        if (reachable.isEmpty()) {
+            log.warn("[EXT] 도달 가능한 링크 없음, 기존 데이터 유지 curationId={}", curationId);
+            return;
+        }
+
+        // 유저가 이미 저장한 링크는 외부 추천 후보에서 제외하고, 나머지 후보로 목표 개수(EXTERNAL_LIMIT)를 채운다.
+        // 저장된 Linku.linkuUrl은 정규화된 값이므로 비교 전 동일하게 정규화한다.
+        List<String> normalizedUrls = reachable.stream()
+                .map(item -> UrlUtils.normalizeUrl(item.getUrl()))
+                .toList();
+        List<UsersLinku> savedMatches = usersLinkuRepository.findByUserIdAndLinkuUrlIn(userId, normalizedUrls);
+        Set<String> savedUrls = savedMatches.stream()
+                .map(ul -> ul.getLinku().getLinkuUrl())
+                .collect(Collectors.toSet());
+
+        List<ExternalLinkResultDTO> candidates = reachable.stream()
+                .filter(item -> !savedUrls.contains(UrlUtils.normalizeUrl(item.getUrl())))
+                .limit(EXTERNAL_LIMIT)
+                .toList();
+
+        if (candidates.isEmpty()) {
+            log.warn("[EXT] 저장되지 않은 도달 가능 링크 없음, 기존 데이터 유지 curationId={}", curationId);
+            return;
+        }
+
+        // 이미지 fetch 병렬 실행
+        List<Map.Entry<ExternalLinkResultDTO, CompletableFuture<String>>> tasks = candidates.stream()
                 .map(item -> Map.entry(item, imageFetchService.fetchAsync(item.getUrl(), item.getTitle())))
                 .toList();
 
diff --git a/src/main/java/com/umc/linkyou/service/curation/recommend/internal/InternalRecommendWorker.java b/src/main/java/com/umc/linkyou/service/curation/recommend/internal/InternalRecommendWorker.java
index 280fa9c1..4b5f83f0 100644
--- a/src/main/java/com/umc/linkyou/service/curation/recommend/internal/InternalRecommendWorker.java
+++ b/src/main/java/com/umc/linkyou/service/curation/recommend/internal/InternalRecommendWorker.java
@@ -36,7 +36,7 @@ public void generateInternal(Long curationId) {
 
         List<UsersLinku> candidates = internalLinkCandidateService.getInternalCandidates(userId, curationId, 4);
 
-        curationLinkuRepository.deleteAllByCurationIdAndType(curationId, CurationLinkuType.RECOMMENDED);
+        curationLinkuRepository.deleteAllByCurationIdAndType(curationId, CurationLinkuType.INTERNAL);
 
         List<CurationLinku> toSave = candidates.stream()
                 .map(item -> CurationLinku.ofInternal(curation, item, item.getImageUrl()))
diff --git a/src/main/java/com/umc/linkyou/service/curation/utils/ThumbnailUrlProvider.java b/src/main/java/com/umc/linkyou/service/curation/utils/ThumbnailUrlProvider.java
deleted file mode 100644
index 09932cdc..00000000
--- a/src/main/java/com/umc/linkyou/service/curation/utils/ThumbnailUrlProvider.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.umc.linkyou.service.curation.utils;
-
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Component;
-
-@Component
-public class ThumbnailUrlProvider {
-
-    private final String baseUrl;
-    private static final String EXTENSION = ".png";
-
-    public ThumbnailUrlProvider(@Value("${cloud.aws.s3.base-url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public String getUrlForMonth(String month) {
-        String[] parts = month.split("-");
-        return String.format("%s/curation/%s/%s%s", baseUrl, parts[0], parts[1], EXTENSION);
-    }
-}
\ No newline at end of file
diff --git a/src/main/java/com/umc/linkyou/web/api/CurationApi.java b/src/main/java/com/umc/linkyou/web/api/CurationApi.java
index 16e37270..b0590a7e 100644
--- a/src/main/java/com/umc/linkyou/web/api/CurationApi.java
+++ b/src/main/java/com/umc/linkyou/web/api/CurationApi.java
@@ -1,42 +1,70 @@
 package com.umc.linkyou.web.api;
 
 import com.umc.linkyou.apiPayload.ApiResponse;
+import com.umc.linkyou.apiPayload.code.status.SuccessStatus;
 import com.umc.linkyou.apiPayload.code.status.curation.CurationErrorStatus;
+import com.umc.linkyou.apiPayload.code.status.user.UserErrorStatus;
 import com.umc.linkyou.jwt.CurrentUser;
 import com.umc.linkyou.jwt.CustomUserDetails;
 import com.umc.linkyou.validation.annotation.swagger.ApiErrorCode;
+import com.umc.linkyou.validation.annotation.swagger.ApiSuccessCode;
 import com.umc.linkyou.web.dto.curation.*;
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.time.YearMonth;
 import java.util.List;
 
 @Tag(name = "큐레이션 API", description = "큐레이션과 관련 된 API 입니다")
 @RequestMapping("/curations")
 public interface CurationApi {
 
-    @Operation(summary = "큐레이션 섹션 정보 조회", description = "지정한 월(YYYY-MM)의 섹션별 제목, 설명, 대표 이미지를 반환합니다. 미입력 시 이번 달 기준. 모든 유저 동일.")
+    @Operation(summary = "큐레이션 섹션 정보 조회", description = """
+            지정한 월(YYYY-MM)의 섹션별 제목, 설명, 대표 이미지를 반환합니다.
+            
+            - 로그인 여부와 무관하게 모든 유저에게 동일한 응답을 반환합니다.
+            - 해당 월의 큐레이션이 아직 생성되지 않은 경우, 빈 배열(`[]`)을 반환합니다.
+            """)
+    @ApiSuccessCode(SuccessStatus._OK)
     @GetMapping("/sections")
     ResponseEntity<ApiResponse<List<CurationSectionResponse>>> getSectionInfo(
-            @RequestParam(required = false) String month
+            @Parameter(description = "섹션 정보 월입니다. 미입력 시 이번 달을 기준으로 합니다.", example = "2025-07") @RequestParam(required = false) YearMonth month
     );
 
-    @Operation(summary = "연도별 큐레이션 히스토리 조회", description = "지정한 연도의 1~12월 큐레이션 목록을 반환합니다. 미입력 시 올해 기준. 생성되지 않은 달은 curationId, thumbnailUrl이 null입니다.")
+    @Operation(summary = "연도별 큐레이션 히스토리 조회", description = """
+            지정한 연도의 1~12월 큐레이션 목록을 반환합니다.
+
+            - 연도를 입력하지 않으면 올해를 기준으로 조회합니다.
+            - 2025년 이전 연도를 요청하면 에러가 발생합니다.
+            - 아직 생성되지 않은 달은 curationId, thumbnailUrl이 null로 반환됩니다.
+            """)
+    @ApiSuccessCode(SuccessStatus._OK)
+    @ApiErrorCode(curationErrorStatus = {CurationErrorStatus._CURATION_INVALID_YEAR})
     @GetMapping("/history")
     ResponseEntity<ApiResponse<List<CurationListResponse>>> getMyCurationList(
             @CurrentUser CustomUserDetails userDetails,
             @RequestParam(required = false) Integer year
     );
 
-    @Operation(summary = "가장 최근 큐레이션 조회", description = "내 최신 큐레이션을 조회합니다.")
+    @Operation(summary = "가장 최근 큐레이션 조회", description = """
+            로그인한 사용자의 가장 최근 큐레이션 정보를 조회합니다.
+
+            - 생성된 큐레이션이 하나도 없는 경우, 204 No Content를 반환합니다.
+            """)
+    @ApiSuccessCode(SuccessStatus._OK)
     @GetMapping("/latest")
     ResponseEntity<ApiResponse<CurationLatestResponse>> getLatestCuration(
             @CurrentUser CustomUserDetails userDetails
     );
 
-    @Operation(summary = "큐레이션 상세 조회", description = "큐레이션 ID로 상세 정보를 조회합니다.")
+    @Operation(summary = "큐레이션 상세 조회", description = """
+            큐레이션 ID로 상세 정보를 조회합니다.
+            """)
+    @ApiSuccessCode(SuccessStatus._OK)
+    @ApiErrorCode(userErrorStatus = {UserErrorStatus._USER_NOT_FOUND})
     @ApiErrorCode(curationErrorStatus = {CurationErrorStatus._CURATION_NOT_FOUND, CurationErrorStatus._CURATION_FORBIDDEN})
     @GetMapping("/detail/{curationId}")
     ResponseEntity<ApiResponse<CurationDetailResponse>> getCurationDetail(
@@ -44,11 +72,18 @@ ResponseEntity<ApiResponse<CurationDetailResponse>> getCurationDetail(
             @PathVariable Long curationId
     );
 
-    @Operation(summary = "큐레이션 기반 링크 추천", description = "내부/외부 링크를 추천합니다.")
-    @ApiErrorCode(curationErrorStatus = {CurationErrorStatus._CURATION_NOT_FOUND})
+    @Operation(summary = "큐레이션 기반 링크 추천", description = """
+            내부 링크(4개)와 외부 링크(5개)를 반환합니다.
+
+            - 해당 큐레이션에 아직 생성된 추천이 없으면 백그라운드로 생성을 트리거합니다.
+            - 생성이 끝나기 전이라면 현재 시점에 만들어져 있는 결과만(비어있을 수 있음) 즉시 반환합니다.
+            - 생성이 끝난 뒤 재요청하면 채워진 결과를 받을 수 있습니다.
+            """)
+    @ApiSuccessCode(SuccessStatus._OK)
+    @ApiErrorCode(curationErrorStatus = {CurationErrorStatus._CURATION_NOT_FOUND, CurationErrorStatus._CURATION_FORBIDDEN})
     @GetMapping("/recommend-links")
     ResponseEntity<ApiResponse<List<RecommendedLinkResponse>>> getRecommendedLinks(
             @CurrentUser CustomUserDetails userDetails,
-            @RequestParam Long curationId
+            @Parameter(description = "추천 링크를 조회할 큐레이션 ID", example = "1") @RequestParam Long curationId
     );
 }
diff --git a/src/main/java/com/umc/linkyou/web/controller/CurationController.java b/src/main/java/com/umc/linkyou/web/controller/CurationController.java
index 3d2f65fb..d7415f37 100644
--- a/src/main/java/com/umc/linkyou/web/controller/CurationController.java
+++ b/src/main/java/com/umc/linkyou/web/controller/CurationController.java
@@ -23,9 +23,9 @@ public class CurationController implements CurationApi {
     private final CurationRecommendBuilderService curationRecommendBuilderService;
 
     @Override
-    public ResponseEntity<ApiResponse<List<CurationSectionResponse>>> getSectionInfo(@RequestParam(required = false) String month) {
-        String resolvedMonth = (month != null) ? month : YearMonth.now().toString();
-        return ResponseEntity.ok(ApiResponse.onSuccess(curationService.getCurationSections(resolvedMonth)));
+    public ResponseEntity<ApiResponse<List<CurationSectionResponse>>> getSectionInfo(@RequestParam(required = false) YearMonth month) {
+        YearMonth resolvedMonth = (month != null) ? month : YearMonth.now();
+        return ResponseEntity.ok(ApiResponse.onSuccess(curationService.getCurationSections(resolvedMonth.toString())));
     }
 
     @Override
diff --git a/src/main/java/com/umc/linkyou/web/dto/curation/CurationDetailResponse.java b/src/main/java/com/umc/linkyou/web/dto/curation/CurationDetailResponse.java
index 4f1b5089..4dfaa5cc 100644
--- a/src/main/java/com/umc/linkyou/web/dto/curation/CurationDetailResponse.java
+++ b/src/main/java/com/umc/linkyou/web/dto/curation/CurationDetailResponse.java
@@ -1,14 +1,24 @@
 package com.umc.linkyou.web.dto.curation;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Builder;
 import lombok.Getter;
 
 @Getter
 @Builder
 public class CurationDetailResponse {
+    @Schema(description = "큐레이션 ID", example = "1")
     private Long curationId;
+
+    @Schema(description = "큐레이션 기준 월", example = "2025-07")
     private String month;
+
+    @Schema(description = "상단 멘트", example = "닉네임님, 잔잔한 평온함 속에서 잠시 숨을 고르며 나를 돌아보는 시간을 가져보세요.")
     private String headerMent;
+
+    @Schema(description = "하단 멘트", example = "닉네임님, 당신의 평온한 하루가 더욱 깊어지기를 바라며, 링크유가 언제나 당신 곁에 있겠습니다.")
     private String footerMent;
+
+    @Schema(description = "헤더/푸터 멘트가 모두 준비됐는지 여부", example = "true")
     private boolean mentReady;
 }
\ No newline at end of file
diff --git a/src/main/java/com/umc/linkyou/web/dto/curation/CurationLatestResponse.java b/src/main/java/com/umc/linkyou/web/dto/curation/CurationLatestResponse.java
index 8a5dc4e0..b36e0044 100644
--- a/src/main/java/com/umc/linkyou/web/dto/curation/CurationLatestResponse.java
+++ b/src/main/java/com/umc/linkyou/web/dto/curation/CurationLatestResponse.java
@@ -1,5 +1,6 @@
 package com.umc.linkyou.web.dto.curation;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;
@@ -8,7 +9,12 @@
 @Builder
 @AllArgsConstructor
 public class CurationLatestResponse {
+    @Schema(description = "큐레이션 ID", example = "1")
     private Long curationId;
-    private String month; // e.g., "2025-07"
+
+    @Schema(description = "큐레이션 기준 월", example = "2025-07")
+    private String month;
+
+    @Schema(description = "썸네일 이미지 URL (섹션 1 대표 이미지)", example = "https://d3f9zmi4jicqrs.cloudfront.net/curation/section01/07.png")
     private String thumbnailUrl;
 }
\ No newline at end of file
diff --git a/src/main/java/com/umc/linkyou/web/dto/curation/CurationListResponse.java b/src/main/java/com/umc/linkyou/web/dto/curation/CurationListResponse.java
index 77f92d07..6a00bd15 100644
--- a/src/main/java/com/umc/linkyou/web/dto/curation/CurationListResponse.java
+++ b/src/main/java/com/umc/linkyou/web/dto/curation/CurationListResponse.java
@@ -1,5 +1,6 @@
 package com.umc.linkyou.web.dto.curation;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;
@@ -10,7 +11,12 @@
 @AllArgsConstructor
 @NoArgsConstructor
 public class CurationListResponse {
+    @Schema(description = "큐레이션 ID (생성되지 않은 달이면 null)", example = "1")
     private Long curationId;
-    private String month;       // e.g., "2025-07"
+
+    @Schema(description = "큐레이션 기준 월", example = "2025-07")
+    private String month;
+
+    @Schema(description = "썸네일 이미지 URL (섹션 1 대표 이미지, 생성되지 않은 달이면 null)", example = "https://d3f9zmi4jicqrs.cloudfront.net/curation/section01/07.png")
     private String thumbnailUrl;
 }
\ No newline at end of file
diff --git a/src/main/java/com/umc/linkyou/web/dto/curation/CurationSectionResponse.java b/src/main/java/com/umc/linkyou/web/dto/curation/CurationSectionResponse.java
index 48f8072a..f4010c21 100644
--- a/src/main/java/com/umc/linkyou/web/dto/curation/CurationSectionResponse.java
+++ b/src/main/java/com/umc/linkyou/web/dto/curation/CurationSectionResponse.java
@@ -1,13 +1,21 @@
 package com.umc.linkyou.web.dto.curation;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Builder;
 import lombok.Getter;
 
 @Getter
 @Builder
 public class CurationSectionResponse {
+    @Schema(description = "섹션 번호", example = "1")
     private int section;
+
+    @Schema(description = "섹션 제목", example = "2026 월간 큐레이션 6월호")
     private String title;
+
+    @Schema(description = "섹션 설명", example = "이번달을 위한 링크, 링큐가 준비했어요.")
     private String description;
+
+    @Schema(description = "섹션 대표 이미지 URL", example = "https://cdn.example.com/sections/2026-06-1.png")
     private String imageUrl;
 }
diff --git a/src/main/java/com/umc/linkyou/web/dto/curation/RecommendedLinkResponse.java b/src/main/java/com/umc/linkyou/web/dto/curation/RecommendedLinkResponse.java
index c792cc7c..a153b937 100644
--- a/src/main/java/com/umc/linkyou/web/dto/curation/RecommendedLinkResponse.java
+++ b/src/main/java/com/umc/linkyou/web/dto/curation/RecommendedLinkResponse.java
@@ -1,5 +1,7 @@
 package com.umc.linkyou.web.dto.curation;
 
+import com.umc.linkyou.domain.enums.CurationLinkuType;
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.Setter;
@@ -10,11 +12,27 @@
 @Setter
 @Builder(toBuilder = true)
 public class RecommendedLinkResponse {
+    @Schema(description = "저장된 링크 ID (사용자가 저장하지 않은 외부 추천이면 null)", example = "1")
     private Long userLinkuId;
+
+    @Schema(description = "링크 제목", example = "퇴근 후 30분 홈트 루틴 추천")
     private String title;
+
+    @Schema(description = "링크 URL", example = "https://example.com/articles/home-workout")
     private String url;
-    private String imageUrl; // 실제 콘텐츠 대표 이미지
+
+    @Schema(description = "링크 대표 이미지 URL", example = "https://cdn.example.com/links/home-workout.png")
+    private String imageUrl;
+
+    @Schema(description = "도메인 이름", example = "example.com")
     private String domain;
-    private String domainImageUrl; // ex. 도메인 아이콘 이미지
-    private List<String> categories; // 내부 추천만 포함됨
+
+    @Schema(description = "도메인 아이콘 이미지 URL", example = "https://cdn.example.com/domains/example.png")
+    private String domainImageUrl;
+
+    @Schema(description = "카테고리 목록 (내부 추천만 포함, 외부 추천이면 null)", example = "[\"라이프스타일\"]")
+    private List<String> categories;
+
+    @Schema(description = "추천 종류 (INTERNAL: 내가 저장한 링크 기반, EXTERNAL: AI 웹 검색 기반)", example = "INTERNAL")
+    private CurationLinkuType type;
 }
\ No newline at end of file
diff --git a/src/main/resources/db/migration/V18__rename_curation_linkus_type_recommended_to_internal.sql b/src/main/resources/db/migration/V18__rename_curation_linkus_type_recommended_to_internal.sql
new file mode 100644
index 00000000..8b142048
--- /dev/null
+++ b/src/main/resources/db/migration/V18__rename_curation_linkus_type_recommended_to_internal.sql
@@ -0,0 +1,11 @@
+-- curation_linkus.type: RECOMMENDED -> INTERNAL (명칭을 EXTERNAL과 대칭되도록 변경)
+ALTER TABLE curation_linkus DROP CONSTRAINT IF EXISTS curation_linkus_type_check;
+
+UPDATE curation_linkus SET type = 'INTERNAL' WHERE type = 'RECOMMENDED';
+
+ALTER TABLE curation_linkus
+    ADD CONSTRAINT curation_linkus_type_check
+        CHECK (type = ANY (ARRAY [
+            'INTERNAL',
+            'EXTERNAL'
+            ]::varchar[]));
diff --git a/src/main/resources/db/migration/V19__drop_curation_linkus_url_normalized.sql b/src/main/resources/db/migration/V19__drop_curation_linkus_url_normalized.sql
new file mode 100644
index 00000000..f851a5d1
--- /dev/null
+++ b/src/main/resources/db/migration/V19__drop_curation_linkus_url_normalized.sql
@@ -0,0 +1,2 @@
+-- url_normalized: 정규화된 url을 별도 저장하지 않고 url 컬럼에 정규화된 값을 바로 저장하기로 변경
+ALTER TABLE curation_linkus DROP COLUMN IF EXISTS url_normalized;
diff --git a/src/test/java/com/umc/linkyou/service/curation/CurationServiceTest.java b/src/test/java/com/umc/linkyou/service/curation/CurationServiceTest.java
index 1047ecab..c8004dfd 100644
--- a/src/test/java/com/umc/linkyou/service/curation/CurationServiceTest.java
+++ b/src/test/java/com/umc/linkyou/service/curation/CurationServiceTest.java
@@ -4,10 +4,11 @@
 import com.umc.linkyou.apiPayload.code.status.user.UserErrorStatus;
 import com.umc.linkyou.apiPayload.exception.GeneralException;
 import com.umc.linkyou.domain.Curation;
+import com.umc.linkyou.domain.CurationSectionInfo;
 import com.umc.linkyou.domain.Users;
 import com.umc.linkyou.repository.curationRepository.CurationRepository;
+import com.umc.linkyou.repository.curationRepository.CurationSectionInfoRepository;
 import com.umc.linkyou.repository.userRepository.UserRepository;
-import com.umc.linkyou.service.curation.utils.ThumbnailUrlProvider;
 import com.umc.linkyou.web.dto.curation.CurationDetailResponse;
 import com.umc.linkyou.web.dto.curation.CurationListResponse;
 import org.junit.jupiter.api.DisplayName;
@@ -37,7 +38,7 @@ class CurationServiceTest {
 
     @Mock private UserRepository userRepository;
     @Mock private CurationRepository curationRepository;
-    @Mock private ThumbnailUrlProvider thumbnailUrlProvider;
+    @Mock private CurationSectionInfoRepository curationSectionInfoRepository;
 
     @Nested
     @DisplayName("큐레이션 생성")
@@ -179,7 +180,8 @@ class GetCurationList {
             Curation curation = Curation.builder().user(user).baseMonth("2026-03").build();
 
             given(curationRepository.findAllByUserIdAndYear(USER_ID, "2026")).willReturn(List.of(curation));
-            given(thumbnailUrlProvider.getUrlForMonth("2026-03")).willReturn("url");
+            given(curationSectionInfoRepository.findByMonthAndSectionNumber("2026-03", 1))
+                    .willReturn(Optional.of(CurationSectionInfo.builder().imageUrl("url").build()));
 
             List<CurationListResponse> result = curationService.getCurationList(USER_ID, 2026);