Free SEO Audit for Any Website
A free, AI-powered SEO checker that analyzes your site across 26 factors in about 60 seconds — then tells you exactly what to fix first.
What is an SEO audit?
An SEO audit is a health check of your website’s ability to rank in search engines. It looks at the technical foundation, the content on each page, how fast and secure the site is, and — increasingly — how well your pages are understood by AI and answer engines. A good audit doesn’t just list problems; it ranks them by impact so you know what to fix first.
What this free SEO audit checks
We crawl up to 500 pages and run more than 25 analyzers in parallel. Here’s the full coverage:
Technical SEO
- HTTPS & SSL
- Crawlability & indexability
- XML sitemap & robots.txt
- Redirects, chains & loops
- Canonical tags
On-Page SEO
- Title tags & lengths
- Meta descriptions
- Heading structure (H1–H3)
- Duplicate titles & content
- Keyword usage (TF-IDF)
Performance
- Real-user Core Web Vitals (LCP, INP, CLS)
- Lab + field (CrUX) data
- JS render budget & unused JS
- Page size & requests
Security & Trust
- Security headers (HSTS, CSP)
- Mixed content
- E-E-A-T signals
Content & Links
- Readability & thin content
- Internal link equity (PageRank)
- Broken links
- Anchor text quality
- Image alt text
AI-Era SEO
- AEO — answer-engine readiness
- GEO — generative-engine visibility
- AIO — llms.txt & semantic HTML
- What AI crawlers see (JS-render diff)
- Structured data (schema.org)
How to do an SEO audit, step by step
You can run a full audit here in one click, but it helps to know what a thorough SEO audit actually involves — the process is the same whether you do it by hand or let a tool do the heavy lifting:
- Crawl the site the way a search engine does. Start at the homepage, follow internal links to map every reachable page, and note status codes, redirects, and anything blocked in robots.txt.
- Check the technical foundation. Confirm HTTPS, a valid XML sitemap, and clean canonical tags, and make sure important pages are actually indexable — not accidentally set to noindex or buried behind redirect chains.
- Review on-page content. Go through title tags, meta descriptions, heading structure, and thin or duplicate content, page by page.
- Measure performance and Core Web Vitals. Test loading, interactivity, and layout stability against real-user (field) data, not just a lab score.
- Assess trust and security. Check security headers, mixed content, and the E-E-A-T signals that both search engines and AI models weigh.
- Check AI-era readiness. See what AI crawlers actually render, whether your answers are extractable, and whether your structured data and llms.txt make the site machine-readable.
- Prioritise by impact. Rank every issue by how much it affects rankings and fix the critical ones first.
This tool does all seven automatically and hands you the prioritised list — but the steps are worth knowing so you can act on the results with confidence.
How to read your report
Your audit opens on a dashboard with an overall grade (A–F) and a score for each category. Every issue is labeled critical, warning, or notice, with a plain-English explanation and a recommended fix. Start with the critical issues — they have the biggest impact on rankings — then work down. You can export the full report as a designed PDF or a multi-tab Excel workbook to share with your team.
Why AI-era SEO (AEO, GEO, AIO) matters
Search is no longer just blue links. Answer engines pull concise answers, and generative AI tools cite sources directly. Our audit checks whether your pages are structured for featured snippets (AEO), trustworthy enough to be cited by AI (GEO), and machine-readable for large language models (AIO) — factors most traditional SEO tools ignore. You can also spot-check individual signals with our AI Bot Access Checker, AI Visibility Checker and llms.txt Generator, or read the SEO audit guide.
How often should you run an SEO audit?
For most sites, a full audit every quarter is enough to catch drift — broken links, new redirect chains, pages that slipped out of the index, or content that has gone stale. Run one sooner if you’ve launched a redesign, migrated to a new domain or CMS, changed your URL structure, or seen traffic drop in Google Search Console. Because the audit is free and takes about a minute, many teams re-run it after every significant change and watch the grade move. If you’d rather not remember to check, our free AI-Readiness Monitor tracks your pages on a schedule and emails you when something changes.
Frequently asked questions
Is this SEO audit really free?
Yes. The full audit runs for free with no account, no credit card, and no trial limit, and you can export the report as a PDF or Excel file at no cost.
Do I need to sign up or install anything?
No. Enter a URL and the audit runs in your browser session. There is nothing to install and no login to create.
How many pages does it crawl?
It crawls up to 500 pages, following internal links from the homepage, then runs more than 25 analyzers across them. Most smaller sites finish in well under a minute.
How is this different from other free SEO checkers?
Most free checkers stop at titles, meta tags, and a speed score for a single page. This audit crawls the whole site and adds Core Web Vitals, security, accessibility, internal link equity, and AI-era checks (AEO, GEO, AIO) that traditional tools skip.
How long does an SEO audit take?
Most sites finish in under a minute. Larger sites that crawl toward the 500-page limit can take a few minutes, since we render each page and run every analyzer in parallel rather than sampling. You will see live progress while it runs, with the biggest issues surfaced first.
Can I audit any website, including a competitor site?
Yes. Enter any public URL and the audit crawls what a search engine can see — your own site or a competitor site. It is a good way to benchmark: run both and compare grades, Core Web Vitals, and which site is better structured for AI answer engines. We only access publicly available pages, nothing behind a login.
Does this check how my site appears to ChatGPT and AI search?
Yes — that is the AI-era layer most SEO tools skip. The audit checks answer-engine readiness (AEO), whether AI tools can cite you (GEO), and whether your HTML and llms.txt are machine-readable (AIO), plus a render diff showing what AI crawlers actually see versus a browser. You can spot-check a single page with the Answer Extractability Checker or AI Bot Access Checker.