Free AI SEO Tools: What You Can Actually Do at $0

AI answers pass through four stages, and free tools cover them very unevenly.

• Parametric: what the model knows with no web access. It is frozen at a training cutoff. Nobody changes it this quarter.
• Access: whether a crawler may fetch and store your page. You and your CDN control this.
• Retrieval: whether your page enters the model's context for a given question. The engine controls this, partly through its index.
• Generation: which retrieved pages the model uses and cites. The model controls this.

Free tools are strong at access, partial at retrieval (they can show index status), and weak at generation. That is the opposite of how most AI SEO tools are marketed.

The evidence points the same way. A July 2026 critical survey of 45 GEO studies (arXiv 2607.14035) found that no reviewed technique showed a stable, cross-platform causal effect on discoverability. The levers that hold up remove blocks: rendering, crawler permission, network reachability, index eligibility and snippet controls. Every one of those can be checked for free.

So the next move is simple. Spend your free-tool time on access and index status before you spend it on anything else.

Google Search Console

Search Console is the free source for Google's AI Overviews and AI Mode. Google states that a page must be indexed and eligible to be shown with a snippet to appear as a supporting link, with no additional technical requirements. URL Inspection tells you whether a page is indexed, which canonical Google chose, and when it last crawled.

Search Console also has a generative AI performance report. It shows impressions only, broken down by page, country, date and device. It has no clicks, no CTR and no position. Treat it as exposure data, not traffic data.

One control is worth a screenshot. Inclusion in Google's generative AI features is opt-out, on by default, and child properties inherit the parent's setting. A property can be excluded without anyone on your team touching it. Google has been rolling this control out to a subset of owners, so you may not see it yet.

Bing Webmaster Tools

Bing's index backs Microsoft Copilot and Bing's AI summaries. Bing Webmaster Tools shows whether your pages are in that index, which tells you nothing about Google (and the reverse).

Its AI Performance report, in public preview since February 2026, shows citations and grounding queries: the key phrases the AI used when retrieving content it cited. Every prompt tracker tests questions it chose. Grounding queries show what the engine actually searched. Microsoft notes that grounding query data is a sample. As of the last evidence review, the report had no API, so you export it by hand.

Your own robots.txt and page source

Your robots.txt file and your raw HTML are free and decisive. The next sections show what to look for.

Pick the free tool by the question you need answered, not by the label on the tool.

For more depth on each row, see free AI SEO tools matched to the job and what each kind of free GEO tool actually checks.

Free tools are most useful when you aim them at things you can change.

In your control

• Per-bot crawler permission. OpenAI documents that each of its crawler settings is independent. GPTBot governs training. OAI-SearchBot governs ChatGPT search.
• Network reachability. OpenAI's help center says eligibility for ChatGPT search requires allowing OAI-SearchBot and confirming your host or CDN allows OpenAI's published IP addresses. A firewall can block a bot that robots.txt allows.
• Rendering. Vercel's crawler study found that ChatGPT and Claude crawlers fetch JavaScript files but do not execute them. Content that only appears after JavaScript runs may be invisible to them. Googlebot renders, so this mostly affects non-Google engines.
• Snippet controls. noindex, nosnippet, max-snippet:0 and data-nosnippet keep content out of Google and Bing AI answers.
• Specific facts on fetchable pages. A clear price, number or one-line definition gives an engine a sentence it can quote.

Not in your control

• The questions engines actually run. ChatGPT rewrites prompts into its own queries. Google may fan a query out across subtopics.
• Whether retrieval fires at all. It is per query and at each engine's discretion.
• Training cutoffs. Anything published after a model's cutoff cannot reach its answers without live retrieval.
• Brand prominence. Large, well-known brands dominate citations in the published studies.

Organic rank is a partial proxy at best. Ahrefs found that 37.9% of URLs cited in AI Overviews also appeared in the top 10 results (March 2026). When engines cite other sites instead of yours, being named on those sites is associated with appearing in answers. Our page on managing your brand as an entity for AI search covers that route.

Work from the gates outward. Each step removes a possible block before you measure anything downstream.

1. Read your robots.txt per bot. Check OAI-SearchBot, PerplexityBot, Claude-SearchBot, Meta-WebIndexer, Googlebot and bingbot separately. A blanket AI block often removes ChatGPT search eligibility by accident. A file that opts out of training but stays in search looks like this:

User-agent: OAI-SearchBot
Allow: /

User-agent: GPTBot
Disallow: /

2. Test the firewall. Request a key page as each crawler and look for 403s or challenge pages. The AI Crawler Checker does this for free, and our answer on testing whether your firewall blocks AI crawlers explains what the results mean.
3. Compare raw HTML with the rendered page. Open view source on your pricing, product and about pages. If prices or product names are missing there, move them into the server-rendered HTML.
4. Search for suppression directives. Look for noindex, nosnippet, max-snippet and data-nosnippet that a template added without anyone meaning to.
5. Check Search Console. Confirm key pages are indexed, review the generative AI impressions report, and look for the inclusion control if it appears on your property.
6. Verify Bing Webmaster Tools. Confirm Bing indexes you, then export grounding queries from the AI Performance report.
7. Take a snapshot of AI answers. The free checker on this site runs up to three buyer questions and scores the answers. To pick good questions, see this free way to find the questions buyers ask AI.
8. Fix wrong facts at the source. If answers get your price or product wrong, make sure your own site states the correct fact the same way on every page.

Many free tools are built around claims the primary sources contradict. These are the ones to watch for.

• Treating a schema generator as a citation tool. Google says structured data isn't required for generative AI search. Ahrefs' matched-control study of 1,885 pages found AI Overviews citations fell 4.6% after schema was added. Schema still has uses. It is not a lever for AI answers.
• Generating an llms.txt to get cited. Google says Search ignores these files. No other engine documents reading one.
• Trusting an E-E-A-T or domain authority score. Google says E-E-A-T isn't a specific ranking factor, and no engine computes domain authority. Any tool that shows those numbers made them up.
• Tracking an AI rank. Google exposes impressions only for its AI features. There is no position data to check such a number against.
• Allowing GPTBot so ChatGPT finds you. GPTBot governs training only. ChatGPT search uses OAI-SearchBot.
• Mass-publishing with a free AI writer. In OtterlyAI's 2026 experiment, Google removed two new sites of roughly 1,000 AI-generated posts each, with no manual action reported. Google says appropriate use of AI is fine. Scaled pages without value are not.
• Reading one blended score. In the same experiment, Copilot cited one site thousands of times while ChatGPT barely did. Look at each engine separately.

Free tools cover access, index status and one-off snapshots well. They fall short in three places.

• Change over time. A single check cannot tell you whether answers improved after a fix or drifted after a model update.
• Coverage across engines. Running the same questions by hand on every engine, every week, gets slow quickly.
• Fact checking at scale. Spotting every wrong price or outdated product name across dozens of answers takes structure.

If those gaps matter to you, compare paid options by task rather than by feature count. Our guide on how to choose AI SEO tools by task walks through that, and AI SEO tools for small businesses covers what to prioritize on a tight budget.

Whatever you choose, hold it to the same standard as free tools. It should show per-engine results, say whether answers used live retrieval, and never promise a rank, a citation or a score. Nobody controls what the models say. You control what blocks them.