Free tools
Small spells, no signup
Three tools we use every week in our own work, opened to everyone. They run on open data and live checks, they need no account, and they say where every number comes from.
Free
Domain authority checker
Authority score 0-10 (Open PageRank), global rank, referring domains, first appearance in the Wayback Machine, HTTPS status and whether the domain is in the current Common Crawl. Up to 10 domains at once.
Check a domain →Free
Backlink checker
Paste the page you want linked and the pages that are supposed to link to it. We fetch each source live and report whether the link is there, its anchor text, dofollow or nofollow, and whether the page is indexable at all.
Verify backlinks →Free
AI visibility checker
Can ChatGPT, Claude, Common Crawl and Perplexity actually fetch your site? Server answer per crawler against a browser control, robots.txt policy, Common Crawl presence, text without JavaScript and structured data.
Check AI visibility →Why we give these away
Most "free" SEO tools are a signup wall in front of a demo. Ours are the checks we run before we quote a link-building job or accept a domain into our publisher network. Making them public costs us little and saves you a login.
Every figure names its source. The authority score is Open PageRank, an openly documented metric built on the Common Crawl web graph. Age comes from the Wayback Machine. Link checks are live fetches of the actual page, not a stale index. If a source is unavailable, the tool says so instead of showing an invented number.
Not sure which one you need?
That is what the first assessment is for. Tell us the domain and we will tell you where the money actually sits.