diff --git a/layers/server/routes/robots.txt.ts b/layers/server/routes/robots.txt.ts
index 7eb49b0..67104c5 100644
--- a/layers/server/routes/robots.txt.ts
+++ b/layers/server/routes/robots.txt.ts
@@ -9,9 +9,19 @@ type RobotsConfig = {
 }
 
 export default defineEventHandler(async event => {
-  const host =
-    (getHeader(event, 'host') || getRequestHost(event)).toString() || ''
-  const baseDomain = process.env.BASE_DOMAIN
+  // Nuxt runtimeConfig 사용
+  const runtimeConfig = useRuntimeConfig()
+  const baseDomain = runtimeConfig.public.baseDomain
+  const staticUrl = runtimeConfig.public.staticUrl
+  const runType = runtimeConfig.public.runType
+
+  // 프록시 뒤에 있는 경우 X-Forwarded-Host 우선 사용
+  const forwardedHost = getHeader(event, 'x-forwarded-host')
+  const host = (
+    forwardedHost ||
+    getHeader(event, 'host') ||
+    getRequestHost(event)
+  ).toString() || ''
   const isGameAliasExtractable = host.includes(baseDomain)
 
   let gameAlias = ''
@@ -22,9 +32,6 @@ export default defineEventHandler(async event => {
   let config: RobotsConfig
 
   try {
-    const staticUrl = process.env.STATIC_URL
-    const runType = process.env.RUN_TYPE
-
     // gameAlias가 있을 때만 sitemap 포함
     const sitemapUrl = gameAlias
       ? [`${staticUrl}/${runType}/template/${gameAlias}/sitemap.xml`]
@@ -79,8 +86,14 @@ export default defineEventHandler(async event => {
     : config.sitemap
       ? [config.sitemap]
       : []
-  for (const sm of sitemaps) lines.push(`Sitemap: ${sm}`)
-  if (config.host) lines.push(`Host: ${config.host}`)
+
+  for (const sm of sitemaps) {
+    lines.push(`Sitemap: ${sm}`)
+  }
+
+  if (config.host) {
+    lines.push(`Host: ${config.host}`)
+  }
 
   // 마지막 개행
   return lines.join('\n').trim() + '\n'