diff --git a/.env.example b/.env.example
index f16c9eb..e77f43f 100644
--- a/.env.example
+++ b/.env.example
@@ -3,6 +3,8 @@ HOST=0.0.0.0
 PORT=8000
 LOG_LEVEL=info
 RELOAD=false
+# 리버스 프록시 sub-path 배포 시. 예: /plagiarism (Apache가 /plagiarism → 컨테이너 매핑할 때)
+ROOT_PATH=
 
 ENGINE_VERSION=o2o-plagiarism-2.1.0-kosimcse
 REFERENCE_CORPUS_DIR=./data/reference
diff --git a/app/core/config.py b/app/core/config.py
index 27b044b..68c1dd6 100644
--- a/app/core/config.py
+++ b/app/core/config.py
@@ -12,6 +12,7 @@ class Settings(BaseSettings):
     port: int = 8000
     log_level: str = "info"        # debug / info / warning / error
     reload: bool = False           # 개발용 자동 재시작
+    root_path: str = ""            # 리버스 프록시 sub-path (예: /plagiarism)
 
     engine_version: str = "o2o-plagiarism-2.0.0-pdf-v1.2"
     reference_corpus_dir: str = "./data/reference"
diff --git a/app/main.py b/app/main.py
index 1e399fa..31ee423 100644
--- a/app/main.py
+++ b/app/main.py
@@ -40,6 +40,8 @@ def rebuild_detector(app: FastAPI) -> int:
         return app.state.detector.corpus_size
 
 
+_settings = get_settings()
+
 app = FastAPI(
     title="O2O 저작권 침해 여부 탐지 API",
     description=(
@@ -48,6 +50,7 @@ app = FastAPI(
     ),
     version="1.0.0",
     lifespan=lifespan,
+    root_path=_settings.root_path,
 )
 
 app.include_router(api_router)
@@ -83,6 +86,9 @@ def main() -> None:
         port=settings.port,
         log_level=settings.log_level,
         reload=settings.reload,
+        root_path=settings.root_path,
+        forwarded_allow_ips="*",  # 리버스 프록시(Apache) 헤더 신뢰
+        proxy_headers=True,
     )
 
 
diff --git a/app/static/index.html b/app/static/index.html
index 08457a6..1f4fb3e 100644
--- a/app/static/index.html
+++ b/app/static/index.html
@@ -351,8 +351,8 @@
 </main>
 
 <footer>
-  <a href="/docs">API 문서 (Swagger)</a> ·
-  <a href="/openapi.json">OpenAPI 스펙</a> ·
+  <a href="docs">API 문서 (Swagger)</a> ·
+  <a href="openapi.json">OpenAPI 스펙</a> ·
   엔진 버전: <span id="engine-version">…</span> ·
   레퍼런스 코퍼스: <span id="corpus-size">…</span>건
 </footer>
@@ -445,7 +445,7 @@ async function runDetect() {
   document.getElementById("result-body").style.display = "none";
 
   try {
-    const resp = await fetch("/v1/plagiarism/detect", {
+    const resp = await fetch("v1/plagiarism/detect", {
       method: "POST",
       headers: { "Content-Type": "application/json" },
       body: JSON.stringify(body),
@@ -613,7 +613,7 @@ async function loadCorpus() {
   const tbody = document.getElementById("corpus-tbody");
   tbody.innerHTML = '<tr><td colspan="4" style="color: var(--muted); text-align: center; padding: 20px;">로딩 중…</td></tr>';
   try {
-    const resp = await fetch("/v1/corpus");
+    const resp = await fetch("v1/corpus");
     if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
     const data = await resp.json();
     document.getElementById("corpus-count").textContent = data.total;
@@ -664,9 +664,9 @@ async function uploadCorpus() {
       fd.append("title", title);
       if (docId) fd.append("doc_id", docId);
       fd.append("file", file);
-      resp = await fetch("/v1/corpus/file", { method: "POST", body: fd });
+      resp = await fetch("v1/corpus/file", { method: "POST", body: fd });
     } else {
-      resp = await fetch("/v1/corpus", {
+      resp = await fetch("v1/corpus", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({ doc_id: docId || null, title, text }),
@@ -695,7 +695,7 @@ async function uploadCorpus() {
 async function deleteDoc(docId) {
   if (!confirm(`'${docId}' 문서를 삭제하시겠습니까? 인덱스가 재빌드됩니다.`)) return;
   try {
-    const resp = await fetch(`/v1/corpus/${encodeURIComponent(docId)}`, {
+    const resp = await fetch(`v1/corpus/${encodeURIComponent(docId)}`, {
       method: "DELETE",
     });
     if (!resp.ok && resp.status !== 204) {
@@ -728,7 +728,7 @@ function escapeJs(s) {
 // 헬스 체크 + 코퍼스 정보 표시
 async function checkHealth() {
   try {
-    const resp = await fetch("/v1/health");
+    const resp = await fetch("v1/health");
     if (!resp.ok) throw new Error("not ok");
     const data = await resp.json();
     const autobio = data.autobiography_mode ? ' · 자서전모드' : '';