diff --git a/web/zebra-spaces.html b/web/zebra-spaces.html
index 0a69770..6a60d78 100644
--- a/web/zebra-spaces.html
+++ b/web/zebra-spaces.html
@@ -3,6 +3,9 @@
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width,initial-scale=1">
+<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
+<meta http-equiv="Pragma" content="no-cache">
+<meta http-equiv="Expires" content="0">
 <title>zebra spaces</title>
 <style>
   @font-face {
@@ -4944,8 +4947,8 @@ logLine('', 'ready — pick a handle, type a rendezvous code, enter the space');
 
 <footer style="margin:2.2rem auto 0;font-size:0.65rem;color:#999;line-height:1.7;word-break:break-all;font-family:monospace">
   <span id="pi-seal" style="color:#777;cursor:default;user-select:none" title="">page integrity</span> &nbsp;·&nbsp; built <span class="stamp-date">2026-06-04</span><br>
-  md5 <span class="stamp-md5">7c72885fd864891bda66a349ef766a10</span><br>
-  sha256 <span class="stamp-sha">f691d157e5319d3fad208052da67b26ce91aba3ea79f6c1503b4583595974580</span><br>
+  md5 <span class="stamp-md5">82e9e6fecd89ae3f77c37310ef96fbb8</span><br>
+  sha256 <span class="stamp-sha">f61767c5df25c142f57ed75e3ecf3202ba9e83661da3c529c59cdb9892aa7b6a</span><br>
   <span style="color:#bbb">hashes are of this page with these two fields zeroed — to verify, blank them and re-hash</span><br>
   <span style="color:#bbb">one self-contained file — <strong>save a copy</strong> and verify against these hashes; point at your own servers with ?signal= and ?turncred=, or <a href="host-your-own.html" style="color:#999">host your own community</a></span>
 </footer>
