# Free tools for AI search

> For the complete documentation index, see [llms.txt](https://attensira.com/llms.txt).
> Every page on this site is also served as Markdown: append `.md` to any URL, or send `Accept: text/markdown`.

> Free tools that read a real URL and show their working: AI crawler access, page structure and tokens, schema, sitemaps, llms.txt and who AI cites.

- Canonical page: https://attensira.com/tools
- Source: converted from this page's own HTML. It carries no claim
  records, because the page is not a content-pipeline entity.

Attensira's free tools each take a real URL, prompt or domain and hand back evidence, not a score: what AI crawlers can fetch, how a page is structured and tokenised, whether your schema, sitemap and llms.txt hold up, and which pages the assistants cite. None needs a signup; the one slow tool asks where to send the result.

Content structure analyzer · attensira.com/pricing 6 checks · 1 failing

| Check | Found | Status |
| --- | --- | --- |
| One H1 | Exactly one | Passes |
| Heading levels | Skips from H1 to H3 at “Platform” | Fails |
| Question headings | 17 of 24 headings are questions | Passes |
| Paragraph length | Median 15 words, none past 150 | Passes |
| Lists and tables | 1 list of 4 items, 1 table | Measured |
| Body | 1,767 words of text | Measured |

![Web engineer agent](https://attensira.com/agents/web-engineer-64.webp) Web engineer · Fixes findings like these Run on our own live page · 4 Oct 2026 · n=1 page, 6 checks [Run it on your page](https://attensira.com/tools/content-structure-score)

## Which free tool answers your question?

Each one takes a real URL, file or prompt and shows its working. Pick by what you want to know.

### How does a page read to an AI assistant?

Structure, tokens, passages and entities, measured on a real URL.

- [Content structure score Measure a real page's heading outline, paragraph lengths, lists and tables against stated thresholds Takes a page URL · answers in seconds](https://attensira.com/tools/content-structure-score)
- [Page token inspector Count a page's tokens section by section and see where a retriever taking the first N tokens would cut it Takes a URL or pasted HTML · answers in seconds](https://attensira.com/tools/page-token-inspector)
- [Brand entity checker See whether Wikipedia, Wikidata and your own homepage markup describe your brand as an entity an assistant can resolve Takes a domain or brand name · answers in seconds](https://attensira.com/tools/brand-entity-check)
- [Answer passage extractor Find the passages on a page that match the extractable shape we publish, and what disqualifies the rest Takes a page URL · answers in seconds](https://attensira.com/tools/answer-passage-extractor)

### Can AI crawlers fetch and trust your site?

robots.txt, llms.txt, schema, sitemaps and claims, checked against the published rules.

- [AI robots.txt generator Build a robots.txt with per-crawler rules for GPTBot, ClaudeBot, PerplexityBot, Google-Extended and the rest Takes your choice per crawler · answers in seconds](https://attensira.com/tools/robots-generator)
- [llms.txt generator and validator Build an llms.txt from your sitemap, or check an existing file against the format rules line by line Takes a domain, sitemap or llms.txt · answers in seconds](https://attensira.com/tools/llms-txt-generator)
- [Schema markup validator Check every JSON-LD block on a page against the required and recommended properties for its type Takes a page URL · answers in seconds](https://attensira.com/tools/schema-validator)
- [XML sitemap validator Parse a sitemap or sitemap index and report structure, limits, lastmod formats and cross-host URLs Takes a domain or sitemap URL · answers in seconds](https://attensira.com/tools/sitemap-validator)
- [Blog content optimizer Check a published post's title, meta description, heading outline, length, links, alt text and canonical Takes a post URL · answers in seconds](https://attensira.com/tools/blog-content-optimizer)
- [AI crawler URL inspector Fetch one URL as each AI crawler and see the robots.txt verdict, the real response, and how much of the page survives without JavaScript Takes a page URL · answers in seconds](https://attensira.com/tools/crawler-url-inspector)
- [Claims and sources checker Find every claim on a page carrying a number or borrowing authority, and see what sources it Takes a page URL · answers in seconds](https://attensira.com/tools/claims-source-checker)
- [Schema markup generator Write JSON-LD from what a page actually says, naming the tag each value came from and leaving out what it does not state Takes a page URL · answers in seconds](https://attensira.com/tools/schema-generator)

### What does your market ask AI?

Prompts and sub-queries, modelled from your site. Treat them as a list to check, not as data.

- [Query fan-out generator See the sub-queries a model says it would expand one prompt into, grouped by the facet each explores Takes one prompt · answers in seconds](https://attensira.com/tools/query-fan-out)
- [AI prompt ideas generator Put in a domain and get about 25 prompts its market plausibly asks an AI assistant, grouped by topic and split by intent Takes a domain · answers in seconds](https://attensira.com/tools/prompt-ideas)

### Who do the assistants name today?

Live answers from the assistants themselves. These take minutes and ask where to send the result.

- [AI visibility checker Run the free audit: eight buyer questions on ChatGPT, Perplexity, Claude and Google AI, with who they name instead of you and the pages they cite Takes your domain · answers in seconds](https://attensira.com/tools/ai-visibility-checker)
- [Answer citation checker Ask one buying question of ChatGPT, Claude, Perplexity and Gemini and read every answer: who each named, in what order, and the pages they cited Takes a question and a domain · runs for minutes](https://attensira.com/tools/answer-citation-check)

## What does the answer citation checker hand back?

The answer and every page it cited, in order. This stored Perplexity answer to “what is GPTBot” cites a trade-news site and a marketing blog first, and none of OpenAI’s own pages. In 30 days Perplexity cited attensira.com in none of its 33 answers to this question; ChatGPT cited it in 12 of 33. The checker runs the same read on your question.

Answer · Perplexity asked 4 Oct 2026

Question: what is GPTBot

Perplexity answered: GPTBot is OpenAI’s web crawler used to collect publicly available content that may be used to train OpenAI’s foundation models; it is not the same as the live ChatGPT fetch or search indexers.

Sources cited

1. ppc.land
2. missiongrowth.io
3. nngroup.com
4. lenvanderhof.com
5. conbersa.ai
6. honeyb.ai

Not named Attensira is missing from this Perplexity answer.

![Researcher agent](https://attensira.com/agents/researcher-64.webp) Researcher · Read this answer Stored answer, read over the Attensira MCP · 4 Oct 2026 · 1 of n=33 Perplexity answers, attensira.com cited in 0

In this answer

- Named first: OpenAI
- Cited first: ppc.land
- Sites cited: 6 sites

Software that does your AI-search visibility work, with you in control of every change.

## What else do people ask?

### Are the tools really free?

Yes. No signup and no card. The instant tools answer in seconds. The answer citation checker takes minutes and asks for a name and an email to send the result to; the report itself is a public link anyone can read.

### Why do the tools give findings instead of a score?

Because a score needs a weighting, and nobody outside the AI engines knows how they weigh a missing heading against a missing source. Each tool names the rule it applied and quotes the text it applied it to, so you can decide what matters.

### Did you run them on your own site?

Yes. Each tool page shows a run on attensira.com from 4 October 2026, including what our own site fails: no Wikidata item, statistics with a date and no source, and a guide template that skips a heading level. The llms.txt validator found 25 errors in our own file; we fixed it and re-ran it on 5 October. The answer citation checker shows our own tracked answers instead.

### How are these different from Attensira itself?

A tool checks one page or one question once. Attensira is software that does your AI-search visibility work: it reads the answers to your buyers' questions on a schedule, finds where you are missing, and its crew of AI agents does the work to change it, with your approval.

### Where should I start?

With the free audit: it asks ChatGPT, Perplexity, Claude and Google AI Overview eight buying questions about your category and shows who they name. Then the crawler URL inspector, to check that the pages you want cited can be fetched at all.

## Elsewhere on the site

- [Run a free AI visibility audit Free](https://attensira.com/audit)
- [How Attensira works, day by day](https://attensira.com/how-it-works)
- [The AI crawler guide](https://attensira.com/guides/ai-crawler-guide)
- [Which AI engines Attensira reads](https://attensira.com/platform-visibility)
- [Plans and credits](https://attensira.com/pricing)

## Put the crew to work on your brand.