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Free SEO & AI Visibility Tools

Fifteen free tools — the same checks we run for clients. Audit any page's on-page SEO, see who links to you, how strong your domain is, whether AI engines can see you — and generate the structured data and llms.txt files that help them understand you.

On-Page SEO
Is the page itself built to rank?
Enter any URL for a scored on-page audit — status code, indexability, canonical, title and meta description, headings, word count, alt text and schema — with a plain-English fix for every issue. Optionally scan up to 25 pages from your sitemap.
Paste up to 100 URLs and see which are indexable — and exactly what's blocking the rest: noindex tags, robots.txt rules, redirects, canonicals and errors. Filter the results, copy the problem URLs or export a CSV.
Trace up to 100 URLs hop by hop — every status code, Location and response time in the redirect chain. Catches loops, long chains, 302s that should be 301s, meta refreshes and redirects that end in a 404. Check as Googlebot, Chrome or iPhone.
Enter a page URL and get ready-to-use title tags and meta descriptions built from your own content — measured in pixels the way Google truncates, with a live SERP preview.
Links & Authority
How strong is your backlink profile, and is it growing?
See your referring domains, link quality mix, spam score and concentration risk — scored out of 100, with progress tracking that shows exactly what moved between checks.
Check any domain's authority rating in seconds, see how it compares, and find out what actually moves the number.
Structured Data & AI Readability
Help Google and AI engines read and understand your pages.
See exactly which AI crawlers your robots.txt lets through — parsed the way search engines actually read it — and download a corrected file.
Enter a page URL — we detect the page type and generate valid, copy-paste JSON-LD structured data built from what's actually on the page.
We crawl your site and build a comprehensive, downloadable llms.txt file — the emerging standard that tells ChatGPT, Claude and Perplexity what your site is and which pages matter.
AI Visibility
Do AI assistants see you, and do they recommend you?
Drop in your server log and see real GPTBot, ClaudeBot, PerplexityBot and live ChatGPT fetches over time — verified against official IP lists, with fake bots filtered out. Analyzed in your browser; your log is never uploaded.
Check whether AI systems can identify your brand: Organization schema, sameAs links, Wikipedia, Wikidata, NAP and llms.txt — ranked by what to fix first.
Get the prompts your buyers ask, run them in ChatGPT, Perplexity, Claude and Google AI in one click, and track your real citation rate over time.
A technical crawl-and-render check: can ChatGPT, Claude and Perplexity actually access, read and cite your site?
The recommendation test: when someone asks ChatGPT for businesses like yours, do you come up — or do your competitors?
An instant 0–100 score of how visible your brand is across AI search, with the biggest gaps highlighted.

All tools are free, run in your browser with no signup, and use index-based estimates where third-party data is involved. Results are starting points for strategy — not the strategy itself.

The tools find the gaps. We close them.

Every tool on this page ends with a number. Turning that number into rankings, citations and revenue is the actual work — SEO, AEO, GEO and LLM optimization, done as one strategy. That's OptiSEOn.

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