Deterministic scoring across SEO, content, UX, accessibility, trust, and performance — plus a GPT-5.5 AI report that explains what matters and what to fix. No dashboards, no signups, no noise.
Most website SEO analysis tools are either too shallow (they check meta tags and call it a day) or too expensive (enterprise platforms that charge by the crawl). AI Website Audit CLI sits in the middle — it's a free, open-source CLI that runs locally and gives you a real, structured audit you can trust.
Here's the core idea: separate the deterministic from the subjective. The tool scores your site on six dimensions — SEO, Content, UX, Accessibility, Trust, and Performance — using hard rules that don't change between runs. Then it hands those scores plus a full crawl snapshot to GPT-5.5, which writes a human-readable audit report in your language of choice.
No subscription. No data leaving your machine (except the AI call, which you control). No learning curve — it's pip install and go.
Each category is scored 0–100 using rules that actually make sense. SEO checks look at titles, meta descriptions, headings structure, canonical tags, Open Graph presence, image alt text, and more. Content evaluates word count, readability, keyword presence, and internal linking patterns. UX checks for mobile viewport, font sizes, tap targets, and layout stability signals. Trust validates HTTPS, external link safety, and contact information. Accessibility checks ARIA attributes, color contrast signals, form labels, and skip-navigation patterns. Performance looks at asset sizes, render-blocking resources, compression headers, and caching hints.
Takes about 30 seconds. Install with pip, point it at any public URL, and get your full SEO audit + AI report.
Try the Website SEO Analysis Tool →You don't need a PhD in SEO to use this thing. Three commands cover 99% of what you'll do:
ai-audit inspect <url> — Quick scan with no API key. Shows scores across all six dimensions. Great for a gut check before committing to a full report.ai-audit audit <url> — Full audit. Runs all deterministic checks, sends the snapshot to GPT-5.5, and outputs a structured report in Markdown (default), HTML, or JSON. Use --language de (or fr, es, etc.) for reports in other languages.ai-audit show-config — See what checks are enabled, which thresholds are active, and verify your setup.Everything is deterministic on the scoring side — run the same URL three times and you get the same scores (assuming the page hasn't changed). The AI report is the only variable part, and it's grounded in the real data the CLI collected.
The output includes an overall score plus per-category breakdowns, a list of specific issues found, recommendations prioritized by impact, and — in AI mode — natural-language explanations with actionable next steps. You can pipe the JSON output into your own dashboards or CI pipelines.
There are a lot of options out there. Here's how this website SEO analysis tool compares to the usual suspects:
The bottom line: if you want a quick, reliable, AI-enhanced website SEO analysis tool that doesn't require a budget line item or a GUI, this CLI is the best option out there.
Install now, run your first audit in under a minute. Free forever.
Download & Audit Your Site →For the inspect command, no — you get all six dimension scores without any API key. For the audit command (the one that generates the GPT-5.5 AI report), yes, you need an OpenAI API key. The CLI uses your key directly; nothing is proxied or stored on a third-party server.
The deterministic checks cover the same ground as tools like Sitebulb and Screaming Frog — title tags, meta descriptions, heading structure, canonical tags, alt text, Open Graph tags, and more. The scoring is transparent and rule-based, so you always know why you got a particular score. For the AI analysis layer, GPT-5.5 adds context that no rules engine can match — it can spot patterns like thin content clusters or keyword cannibalization that deterministic checkers miss.
Absolutely. The CLI outputs clean JSON with --format json, so you can pipe scores into your CI dashboard, compare builds over time, or fail a deploy if the SEO score drops below a threshold. The Dockerfile and pip install both work seamlessly in GitHub Actions, GitLab CI, and Jenkins.
Yes — the --language flag lets you generate the AI report in German (de), French (fr), Spanish (es), and more. The deterministic scoring works on any language since it checks structural and technical elements, not semantic content. This makes it a solid choice for international teams.
Browser extensions can only see what's loaded in the current tab — they miss the full page structure, external resources, redirect chains, response headers, and the raw HTML before JavaScript mutates it. A CLI tool fetches the page directly and analyzes the actual server response, making it much more reliable for technical SEO audits.
Deterministic scores. AI insights. Zero cost. Try the open-source website SEO analysis tool that thousands of developers are using.
Start Your First Audit →Also check out the AI Website Audit CLI overview page for a quick walkthrough of features and screenshots.