Footer backlink to the author's blog, with author and social profile markup

src/layouts/Base.astro

@@ -24,6 +24,26 @@ const plausibleDomain = import.meta.env.PUBLIC_PLAUSIBLE_DOMAIN as string | unde
 const fullTitle =
   title === "letsauth" ? "letsauth · the lab for agent authorization" : `${title} · letsauth`;
 const here = path ?? Astro.url.pathname;
+// Who publishes the site, for search engines: the lab, founded and run by one person.
+const author = {
+  "@type": "Person",
+  name: OPERATOR.name,
+  url: OPERATOR.site,
+  sameAs: [OPERATOR.mastodon.url, OPERATOR.bluesky],
+};
+const publisher = {
+  "@context": "https://schema.org",
+  "@type": "WebSite",
+  name: "letsauth",
+  url: site.href,
+  author,
+  publisher: {
+    "@type": "Organization",
+    name: LAB,
+    url: site.href,
+    founder: author,
+  },
+};
 // Footer link groups: what you can read, what you can take, and who is behind it.
 const footerGroups = [
   {
@@ -95,6 +115,11 @@ const nav = [
     <title>{fullTitle}</title>
     <meta name="description" content={description} />
     <link rel="canonical" href={canonical.href} />
+    <meta name="author" content={OPERATOR.name} />
+    <link rel="author" href={OPERATOR.site} />
+    <link rel="me" href={OPERATOR.mastodon.url} />
+    <link rel="me" href={OPERATOR.bluesky} />
+    <meta name="fediverse:creator" content={OPERATOR.mastodon.handle} />
     {noindex && <meta name="robots" content="noindex" />}
     <meta property="og:type" content="website" />
     <meta property="og:site_name" content="letsauth" />
@@ -114,6 +139,7 @@ const nav = [
       ))
     }
     <link rel="sitemap" href="/sitemap-index.xml" />
+    <script type="application/ld+json" set:html={JSON.stringify(publisher)} />
     <script is:inline>
       // Apply a stored theme before first paint. Stored value is a per-viewer convenience only.
       try {
@@ -184,8 +210,9 @@ const nav = [
             <BrandLogo />
           </a>
           <p>
-            An independent lab for agent authorization, run by {LAB}. Each cell cites its source
-            and the data is open. Only a nightly scan of public metadata ever contacts a server.
+            An independent lab for agent authorization, run by{" "}
+            <a class="site-footer__author" href={OPERATOR.site} rel="author">{OPERATOR.name}</a>. Each cell cites
+            its source and the data is open. Only a nightly scan of public metadata ever contacts a server.
           </p>
           <a class="site-footer__eu" href="/made-in-europe/">Made in Europe, hosted in the EU</a>
         </div>
@@ -426,6 +453,17 @@ const nav = [
     margin: 0 0 var(--space-4);
     max-width: 36ch;
   }
+  /* the one inline link in the statement: the person behind the lab, a plain followed link */
+  .site-footer__author {
+    color: var(--ink);
+    text-decoration: underline;
+    text-decoration-color: var(--rule-strong);
+    text-underline-offset: 0.2em;
+    transition: text-decoration-color var(--dur-fast) var(--ease);
+  }
+  .site-footer__author:hover {
+    text-decoration-color: currentColor;
+  }
   .site-footer__eu {
     display: inline-flex;
     align-items: center;

src/lib/site.ts

@@ -12,6 +12,9 @@ export const OPERATOR = {
   country: "Germany",
   email: "letsauth@janbrennenstuhl.eu",
   site: "https://www.janbrennenstuhl.eu/",
+  /** Social profiles: linked with rel="me" for verification and listed as sameAs in the JSON-LD. */
+  mastodon: { handle: "@jbspeakr@infosec.exchange", url: "https://infosec.exchange/@jbspeakr" },
+  bluesky: "https://bsky.app/profile/janbrennenstuhl.eu",
 } as const;
 
 export const REPO = "https://github.com/letsauthlab/letsauth";