Best free AEO checker: choose by the question you need answered

The best free AEO checker depends on whether you need to diagnose website access, inspect an answer or observe citations. Start with the question you need answered; a single readiness score does not measure every part of AI visibility.

This shortlist ranks starting tasks for a small business with no established measurement process. It compares documented capabilities checked on 30 October 2026, not a controlled head-to-head performance test. No accuracy or traffic uplift score has been invented.

Which free option should I try first?

The order changes when the website already works well. A publisher with citation data should inspect that evidence before rerunning a format check. A new local business may learn more by checking a public service page first.

What does AEO Lookup actually check?

The free tools separate crawler access, structured data, llms.txt and answer readiness. Use the explanation attached to a result to identify the next change. A crawler restriction and an unclear answer need different work.

AEO Lookup also documents a JSON API and MCP server for repeatable agent use. Automated access can make a check easier to repeat; it does not turn a technical score into a prediction of recommendations.

Run the same public URL after an edit and preserve the previous output. Read the access guide before treating an allowed rule as evidence of indexing.

When is a brand snapshot more useful?

Ahrefs' free checker describes a no-signup preview covering brand mentions and cited pages across supported AI platforms. It is useful when the question is what appears in the tool's sampled answers, rather than which rule blocks a page.

Keep the provider's prompt coverage and collection method in mind. A national brand's appearance across a search-derived dataset may not answer whether a customer asking for a specialist service in one Welsh town sees a particular firm.

Record the result and date. Do not label a missing mention in a limited snapshot as proof that an assistant never knows about the business.

What can Bing's publisher report add?

Bing Webmaster Tools provides free publisher tools. Its AI Performance reporting describes cited pages and associated query context in Microsoft's supported AI experiences.

This is a different source of evidence from a simulated question or a readiness scan. Check what the report actually covers, the reporting period and whether sparse activity is omitted. An empty report is not automatically evidence of zero citations everywhere.

Use an authorised verified property. No third-party checker should need your private login details merely to inspect a public webpage.

What about free trials and free graders?

Check the exact product name and ongoing terms. HubSpot's AEO page distinguishes its paid ongoing monitoring product from trial access. A trial is not a permanent free monitoring allowance.

Avoid starting a card-backed trial to solve a question that a public check or existing publisher report can answer. If a tool requires a purchase after a short period, record that separately from genuinely ongoing free functions.

The shortlist is deliberately narrow. It does not claim that unlisted tools are worse, and it does not assign star ratings without a defined assessment method.

How should a UK small business combine the checks?

For an illustrative UK installer, begin with a public page explaining the actual service area and booking process. Check access, improve unclear facts, then test a small stable set of relevant customer questions.

Use the visibility log to record the exact question, assistant, date and cited URLs. Keep readiness, observed citations and referral visits in separate columns.

Review the evidence before buying a tracker. Paying for a larger dashboard can help when manual work becomes expensive, but it cannot make an unclear measurement question useful. Free tools are most effective when each has a specific job.

Which questions come up most often?

Is the highest readiness score the most visible website?

Not necessarily. A readiness score describes its checks; actual citations and referral visits need separate evidence.

Is a free trial the same as a permanently free checker?

No. Check the product terms and what continues after the trial. Keep paid monitoring outside a free-only shortlist.

Were all these tools benchmarked on identical sites?

This is a documented-capability comparison and practical starting order. It does not claim a controlled head-to-head accuracy benchmark.