add page for webmaster tools

docs/.vitepress/config.ts

@@ -275,6 +275,7 @@ function sidebarKagi() {
                         { text: 'Small Web RSS Feed', link: '/kagi/api/smallweb' },
                     ],
                 },
+                { text: 'Webmaster Tools', link: '/kagi/developer/webmaster-tools' },
                 { text: 'Kagi Sidekick', link: '/kagi/sidekick/' },
             ]
         },

docs/kagi/developer/webmaster-tools.md

@@ -0,0 +1,25 @@
+# Kagi Webmaster Tools
+
+Kagi Webmaster Tools helps site owners verify their domains and see how Kagi knows about their pages. It is designed to be simple and transparent: verify ownership, then view your crawl coverage.
+
+## What it does
+
+- Lets you prove you control a domain.
+- Shows how many pages we have for your domain.
+- Lists the specific URLs we know about.
+- Displays when each page was last crawled and where it was discovered (for example, sitemap or links).
+
+## How to use it
+
+1. Add your domain.
+2. Follow the on-screen instructions to verify ownership.
+2. Choose a verification method (file or DNS TXT) and follow the on-screen instructions.
+3. Once verified, review the page list and crawl details.
+
+## Coming soon
+
+- Request recrawls.
+- Exclude or purge pages.
+- More diagnostic detail for crawl coverage.
+
+If you need help or want additional features, please contact Kagi support.