diff --git a/ui/index.html b/ui/index.html
index 7704df9..16c4dd7 100644
--- a/ui/index.html
+++ b/ui/index.html
@@ -10,17 +10,22 @@
         />
         <meta
             property="og:description"
-            content="a timeline of open source contributions across github, gitea, and mozilla hg — ranked projects, language trends, and commit activity since 2012."
+            content="a timeline of open source contributions across github, gitea, and mozilla hg. ranked projects, language trends, and commit activity since 2012."
         />
         <meta
             property="og:image"
             content="https://rob.tn/api/v1/og/contributions.png"
+            width="1200"
+            height="630"
         />
         <meta property="og:type" content="website" />
+        <meta property="og:url" content="https://rob.tn/" />
         <meta name="twitter:card" content="summary_large_image" />
         <meta
             name="twitter:image"
             content="https://rob.tn/api/v1/og/contributions.png"
+            width="1200"
+            height="630"
         />
         <link rel="icon" type="image/x-icon" href="/favicon.ico" />
         <link