Free SEO tools for the weeks before you launch
No account, no email, no gated report. Paste a URL and get the specific mechanical reason something is broken — not a score out of 100.
Can Google index this page?
Finds the blocking header, tag, rule or redirect keeping a page you just launched out of Google — then shows where that setting hides on Vercel, Netlify, Webflow, Framer, Carrd and Cloudflare Pages.
Liverobots.txt tester
Which search and AI crawlers your robots.txt allows or blocks, with the deciding rule quoted. Covers search, AI answers, AI training and link previews separately.
What these are for
Advance Preview is a board of products that have not shipped yet. Founders here have the same problem in the same order: the page is live, nobody can find it, and the reason is usually one specific mechanical thing rather than a strategy failure.
These tools find that thing. They are free because the board is the product — there is no upsell inside a result, no gate, and no email capture.
How they work
- We fetch only the URL you paste, plus a small number of well-known paths on that same host, such as
/robots.txt. - Every check is server-rendered. The tools work with JavaScript switched off.
- Nothing is stored about the sites you check, and results are never indexed.
- Every rule is sourced. The crawler registry cites each operator's own documentation, carries a last-verified date, and is downloadable under CC BY 4.0 — so you can check our work rather than take it on trust.
Full methodology — what we fetch, what we do not, and where each rule comes from.