Free SEO and AEO Checker: Instant Page Scan

What this SEO checker looks at

The scan reads one page of your site the way a crawler does (robots.txt first), plus the files around it (sitemap, llms.txt, redirects and a sample of internal links), asks Google for its speed data, and runs up to 25 checks across three kinds of search. Every problem shows the evidence it was based on (the actual title, the exact robots.txt line, the broken link) and links to the official guidance:

• SEO, for Google's results: a noindex instruction or robots.txt rule that keeps Google out, HTTPS and the http-to-https redirect, www and non-www consistency, redirect chains, the canonical tag, the title and meta description (missing, too long or too short), one clear H1, enough text to rank, mobile viewport, page language, link-preview tags, image alt text, internal links and broken ones, the sitemap, and Core Web Vitals from real Chrome users (or Google's lab test, clearly labelled, when there is too little real-user data).
• AEO, for answer boxes and AI Overviews: structured data (schema.org): whether it is there, whether it parses and whether it has the properties Google requires, and question-style headings answered right below them.
• GEO, for AI assistants: whether your robots.txt shuts out the crawlers of ChatGPT, Claude, Perplexity, Gemini and others, and whether you publish an llms.txt (an emerging convention, not a ranking factor).

The score starts at 100 and drops 18 points for each urgent problem, 9 for each important one and 4 for each minor one, overall and separately for SEO, AEO and GEO. Problems are ordered worst first, and the checks that passed are listed too.

How to fix what it finds

• Urgent problems (noindex, no HTTPS, AI crawlers blocked, no title or description) can keep the page out of results entirely. Fix them first.
• Title and description problems cost clicks. Preview new ones with the SERP snippet preview.
• Structured data: check what you have and what is missing with the schema checker.
• AI crawler access: the AI crawler checker goes further than this scan, testing 15 crawlers and firewall blocks such as Cloudflare's.

What a one-page scan cannot tell you

Which of your pages matter most, which searches you almost rank for, and which fixes are worth the most clicks: that needs your real Google data. SEO Rank Fixer connects Google Search Console (free from Google), reads every page of your site, ranks each fix by the clicks it is worth and checks it again every night.