- Free
- No signup
- Real search data
Free SEO tools
Check a page's on-page SEO, see how much authority a domain has, find keywords worth writing about, and test whether your text reads human. Each tool answers one question well.
by Structura — the autonomous blog engine
Free SEO tools
Pick the question you need answered
- SEO CheckerAudit any URL for 17 on-page SEO issues: title, meta description, headings, canonical, indexability, speed and more.Open tool
- Domain Rating CheckerSee a domain's DR-comparable domain rank (0-100), referring domains, backlinks and dofollow share.Open tool
- Keyword GeneratorTurn one seed keyword into 50 ideas with search volume, keyword difficulty, CPC and search intent.Open tool
- AI DetectorCheck how likely a text is to read as AI-generated. Runs in your browser; your text never leaves it.Open tool
- AI HumanizerFind every AI tell in a draft, quoted, with guidance on how to rewrite it in your own voice.Open tool
Free SEO tools FAQ
What these tools are, and what they aren't
Are these SEO tools really free?
Yes. There is no signup and no paywall. The checker, domain rating and keyword tools run on paid search data, so each tool gives every visitor 3 checks a day (a result we already have cached does not count), and there is a daily limit across all visitors. Need more? A free account comes with its own monthly checks. If the daily limit runs out, leave your email and we'll tell you once when checks reopen, or come back after the reset at midnight UTC.
Where does the data come from?
The SEO checker crawls the page you enter live. Authority figures come from a live backlink index, and keyword volumes are Google Ads Keyword Planner figures. The AI detector and AI humanizer run entirely in your browser.
Why would a blog engine give away SEO tools?
Because the same research powers Structura. It checks keywords, competitors and on-page structure before it writes each post, then publishes on a schedule. The free tools show you one slice of that; Structura runs the whole loop for your site.
Stop checking one page at a time.
Structura researches keywords, writes SEO-complete posts and publishes them on a schedule, so every new page starts out right.