Your site works fine in a browser. AI agents can't use it. 🔍

I was building agent workflows for clients when I noticed a pattern that drove me nuts: agents would hit a site, get a 200 OK, and then... nothing useful. No structured data. No clear navigation path. Sometimes a WAF would silently block the request. The agent would fail, the logs would look fine, and I'd waste hours figuring out why. The thing is, these weren't bad websites. They ranked well on Google. They looked great in a browser. They just weren't built for anything that wasn't a human clicking around in Chrome. I kept running into the same invisible wall across different clients, then I hit it with my own startup. Ouch. So I built the diagnostic I wished existed, because I needed it too. Meet Siteline Siteline is a free scanner that grades how usable your public website is for AI agents. You give it a URL, it tells you what works, what's broken, and what to fix — in about 10 seconds. It's live right now at siteline.snapsynapse.com. Type any URL and see the grade. Totally free. Wh