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AEO Grader

Grade any page's answer-engine readiness A–F — 11 deterministic AEO checks against the live HTML, with the fixes that matter most listed first.

The VectraSEO AEO Grader gives a single URL a letter grade (A–F) for how ready it is to be cited by AI answer engines — ChatGPT, Perplexity, Claude, and Google AI Overviews. It runs 11 deterministic Answer Engine Optimization checks against the live HTML — direct-answer block, FAQPage and Article schema, SpeakableSpecification, freshness and author signals, supporting evidence, and entity clarity — then returns a grade, a 0–100 readiness score, and a prioritized fix list in about 30 seconds. No signup, no crawl, no data stored.

Last updated

  • 01 answer block near the main heading
  • 02 Article + FAQPage JSON-LD
  • 03 SpeakableSpecification opt-in
  • 04 freshness · author · canonical signals
  • 05 supporting evidence · entity clarity
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Frequently asked questions

01What is AEO, and what does an AEO grade measure?
Answer Engine Optimization (AEO) is optimizing a page so AI answer engines — ChatGPT, Perplexity, Google AI Overviews, and Gemini — can extract, trust, and cite it. The AEO grade is a letter (A–F) summarizing 11 deterministic readiness checks: a concise answer near the main heading, FAQPage and Article schema, SpeakableSpecification, freshness and author signals, supporting citations, entity clarity, and clean snippet eligibility.
02How is the letter grade calculated?
We fetch your page once with a safe crawler and run the 11 AEO checks. Each one passes or fails, weighted by severity into a 0–100 readiness score. The score maps to a grade: A is 90+, B is 80+, C is 65+, D is 50+, and below 50 is F. Failed checks are listed critical-first so you fix the highest-impact gaps before the cosmetic ones.
03Will a good AEO grade get my page cited by ChatGPT or Perplexity?
A strong grade removes the most common technical reasons an answer engine refuses to cite a page, but citation also depends on freshness, authority, and the specific question — none of which a one-off grade can guarantee. The grade tells you whether a page is eligible; earning citations consistently still requires genuinely useful, original content that other sites reference.
04Is the AEO Grader free, and do I need to sign up?
Yes — no signup, no card, no email gate on a single grade. Free use is rate-limited to a handful of grades per hour to keep abuse off the public endpoint. The same checks run inside the full VectraSEO monitor (free to start), where they grade every URL in your sitemap on a daily or weekly schedule.
05How is this different from the AI Visibility Checker?
Same scan, two jobs. The AEO Grader answers "is this page built to be cited?" with a letter grade and a prioritized fix list. The AI Visibility Checker answers "is this page already visible to ChatGPT, Perplexity, and Gemini?" with a visibility score. Grade the page here, then check live visibility there.
06How often should I re-grade a page?
Re-grade after any meaningful edit — new schema, restructured headings, refreshed content. Monthly is usually enough for a normal page; weekly is reasonable for a high-value conversion page. Big changes can take a few days to propagate before AI engines refresh their grounding data.
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