Free website audit: your SEO and AI search score in seconds
Paste a URL. SOSEI runs 40 checks across eight categories and scores the site on classic Google search and on AI search separately. Your first audit needs no account, no payment and no script to install.
One free audit per visitor. A free account gets you 1 more, and any further site is a one-off 4.99 € unlock — re-running a site you already hold is always free.
What is a website audit?
A website audit is a structured review of a live site against a fixed list of checks, producing a score and a list of specific findings rather than an opinion. SOSEI's free audit runs 40 such checks across eight categories — search visibility, AI visibility, answer-engine presence, accessibility, privacy, mobile, performance and design — against any public URL, and reports what failed and where.
What the 40 checks cover
Every check belongs to one of eight categories. Each is scored separately, so a site that ranks on Google but is invisible to AI assistants reads as exactly that rather than as one blended number.
Found on Google
Titles, meta descriptions, heading structure, canonical tags, internal linking, sitemap and robots directives — the checks that decide whether a page can rank at all.
Found by AI search
Whether generative engines can reach and read the site: crawlable content, structured data, an llms.txt, and whether AI crawlers are blocked by robots.txt without anyone noticing.
Named in AI answers
A live check of whether assistants actually name the business when asked about its category, alongside the structural readiness that makes it possible — answerable headings, FAQ markup, self-contained passages.
Accessible to everyone
Contrast ratios, alternative text, form labels, semantic headings and keyboard reachability — measured against WCAG 2.1 AA, the level behind both ADA claims and the European Accessibility Act.
Privacy and consent
Cookie consent before tracking fires, third-party scripts and fonts loaded from someone else's servers, and whether the legal pages a visitor is entitled to actually exist.
Works on phones
Measured at a phone viewport, not guessed from a meta tag: font sizes below the readable floor, fixed-width layouts, and tap targets too small or too close together.
Speed
Page weight, render-blocking resources, image sizing and the technical debt that shows up as a slow first paint on a real connection.
Design and build quality
Signals of a site aging out: table layouts, dead plug-in tags, a copyright year that stopped moving, and design conventions that date the page to the year it was built.
Website audit FAQ
- Is the website audit really free?
- Your first audit is free: 40 checks against any public URL, the full report on screen, no payment and no account. That is 1 free audit as an anonymous visitor and 1 more once you create a free account. Any further site is a one-off unlock of 4.99 €, and re-running a domain you already hold never costs anything.
- How long does a website audit take?
- Seconds for most sites. SOSEI fetches the page, reads its markup, stylesheets, structured data and robots directives, and scores the result immediately — there is no queue and nothing to install.
- What is an AI search score?
- The AI search score measures whether an assistant like ChatGPT, Gemini or Perplexity can find, read and quote a business from its website. It combines the structural side — structured data, llms.txt, crawlable content, answerable headings — with a live check of whether assistants actually name the business when asked about its category.
- Do I need to install anything or verify the domain?
- No. The audit reads what any visitor or crawler can already see at the URL, so there is no script to add, no DNS record to change and no step proving you own the site. Auditing a competitor is a separate paid add-on rather than part of a subscription, on the same one-off unlock any other domain takes.
- What do I do with the findings?
- Each of the 40 checks that fails names the specific thing that failed and where. The report is useful on its own to anyone who wants to fix them in whatever the site is built with today; a SOSEI subscription rebuilds the site with those findings closed, and re-scans of a site you run with us are included every month.
Want the AI half in depth?
The free audit includes a three-persona AI visibility check. The deep report runs six buyer personas across ChatGPT, Claude and Gemini, keeps every answer as evidence, and ranks the competitors those assistants recommend instead of you.
See the AI visibility report