diff --git a/frontend/src/components/admin_eyecatches/main.ts b/frontend/src/components/admin_eyecatches/main.ts
index 997be7a..1f1cb3a 100644
--- a/frontend/src/components/admin_eyecatches/main.ts
+++ b/frontend/src/components/admin_eyecatches/main.ts
@@ -26,8 +26,7 @@ submit_btn_post.addEventListener('click', function () {
     },
     function (err, data) {
       if (data !== null) {
-        ;(document.getElementById('src_post') as HTMLInputElement).value =
-          'https://code-database-images.s3-ap-northeast-1.amazonaws.com/' + 'eyecatches/' + filename
+        ;(document.getElementById('src_post') as HTMLInputElement).value = 'https://image.code-database.com/' + 'eyecatches/' + filename
         const formdata = new FormData(document.getElementById('form_post') as HTMLFormElement)
         const XHR = new XMLHttpRequest()
         XHR.open('POST', '/admin/eyecatches/')
@@ -72,8 +71,7 @@ for (let i = 0; i < forms.length; i++) {
         { Bucket: albumBucketName, Key: 'eyecatches/' + filename, ContentType: files[0].type, Body: files[0], ACL: 'public-read' },
         function (err, data) {
           if (data !== null) {
-            document.querySelectorAll<HTMLInputElement>('#src_put')[i].value =
-              'https://code-database-images.s3-ap-northeast-1.amazonaws.com/' + 'eyecatches/' + filename
+            document.querySelectorAll<HTMLInputElement>('#src_put')[i].value = 'https://image.code-database.com/' + 'eyecatches/' + filename
             const formdata = new FormData(forms[i])
             const XHR = new XMLHttpRequest()
             XHR.open('PUT', '/admin/eyecatches/')
diff --git a/frontend/src/components/user_about/index.html b/frontend/src/components/user_about/index.html
index c302068..a12fd32 100644
--- a/frontend/src/components/user_about/index.html
+++ b/frontend/src/components/user_about/index.html
@@ -93,13 +93,22 @@
                 <br />
                 <p>(アプリの例)</p>
                 <img
-                  src="https://code-database-images.s3-ap-northeast-1.amazonaws.com/uploads/file1588119331504golang_vue.gif"
+                  src="https://image.code-database.com/uploads/file1588119331504golang_vue.gif"
                   alt="GolangとVue.jsとChart.jsで小さなSPAアプリを作る方法について解説"
                 />
               </div>
             </div>
           </div>
         </div>
+        <iframe
+          sandbox="allow-popups allow-scripts allow-modals allow-forms allow-same-origin"
+          style="width: 120px; height: 240px"
+          marginwidth="0"
+          marginheight="0"
+          scrolling="no"
+          frameborder="0"
+          src="//rcm-fe.amazon-adsystem.com/e/cm?lt1=_blank&bc1=000000&IS2=1&bg1=FFFFFF&fc1=000000&lc1=0000FF&t=codedatabas03-22&language=ja_JP&o=9&p=8&l=as4&m=amazon&f=ifr&ref=as_ss_li_til&asins=4480511202&linkId=22f8ae23776bcd506b66a0686248fb2a"
+        ></iframe>
         <div class="col s12 m12 l12 center">
           <a class="toKnowledgesLink" href="/knowledges">記事一覧をみる</a>
         </div>