diff --git a/docs/conflict.gif b/docs/conflict.gif
new file mode 100644
index 0000000..c749668
Binary files /dev/null and b/docs/conflict.gif differ
diff --git a/docs/index.html b/docs/index.html
index f61b792..a6e7b21 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -244,7 +244,7 @@ <h2>It's git for a Design project.</h2>
     </div>
 
     <figure>
-      <img src="roundtrip.gif" width="1440" height="560" alt="Terminal: edit a file and add a new one, dsx status shows modified and untracked, dsx diff shows the byte-level divergence, dsx push sends two files, dsx status is clean.">
+      <img src="roundtrip.gif" width="1440" height="560" loading="lazy" alt="Terminal: edit a file and add a new one, dsx status shows modified and untracked, dsx diff shows the byte-level divergence, dsx push sends two files, dsx status is clean.">
       <figcaption>The full round-trip — edit &amp; add, <b>status</b>, byte-level <b>diff</b>, <b>push</b>, clean.</figcaption>
     </figure>
   </div>
@@ -273,6 +273,11 @@ <h3>The token is <span class="m">read</span>, never printed</h3>
         <p>dsx reads Claude Code's OAuth token, never writes, refreshes, or prints it — it won't even wrap it into an error string.</p>
       </div>
     </div>
+
+    <figure>
+      <img src="conflict.gif" width="1440" height="560" loading="lazy" alt="Terminal: a teammate changed a file on the server; dsx push refuses with conflicts 1 and exit 3 instead of overwriting, and dsx status shows the local edit still present.">
+      <figcaption>Both sides changed. <b>push</b> refuses (exit 3) rather than clobber — your edit is still there.</figcaption>
+    </figure>
   </div>
 </section>
 
diff --git a/docs/robots.txt b/docs/robots.txt
new file mode 100644
index 0000000..6b5a37e
--- /dev/null
+++ b/docs/robots.txt
@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://somework.github.io/dsx/sitemap.xml
diff --git a/docs/sitemap.xml b/docs/sitemap.xml
new file mode 100644
index 0000000..545ab00
--- /dev/null
+++ b/docs/sitemap.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://somework.github.io/dsx/</loc>
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+</urlset>