01
Indexing & crawlability
HTTPS and the http→https redirect, www consistency, redirect chains, robots.txt rules, noindex directives, the canonical tag and the XML sitemap. If any of these is wrong, nothing else on the page matters.
Free Tool
See your site the way search engines do — scored, with the evidence for every check.
Enter a URL and get a graded SEO audit in seconds: indexing, titles and headings, structured data, social previews, mobile readiness, speed and security, then Google Lighthouse scores with Core Web Vitals. Every check shows the value it was judged on.
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30+ checks in seconds
Lighthouse included
Evidence on every finding
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What it checks
Eight areas, thirty-plus checks, one score
Search engines rank pages they can crawl, understand, and trust. The checks map to those three questions, weighted by how much each one actually moves the answer.
02
On-page content
Title and meta description length against what search results display, a single H1, heading order, visible word count, the declared language and image alt coverage — the signals that say what the page is about.
03
Social & structured data
Open Graph and Twitter card completeness, so shared links carry a real preview, plus JSON-LD structured data — the machine-readable layer that rich results and AI answer engines read.
04
Mobile & performance
The viewport tag Google's mobile-first index requires, server response time, document weight, text compression, render-blocking scripts in the head and mixed content.
05
Security signals
HSTS and the same security-header grade as our tech stack checker. Not direct ranking factors, but Lighthouse best-practice items and trust signals for visitors.
06
Lighthouse & Core Web Vitals
Google's own performance, accessibility, best-practice and SEO scores from a real mobile render, plus field data from Chrome users where the site has enough traffic.
What it cannot see
The honest limits of any tool like this
Want to know what a site is built on, not just how it ranks? Try the website tech stack checker, or browse our directory of AI build tools.
- It does not report keyword rankings or search volume. Those depend on the query and the searcher, and no single-fetch tool can honestly claim them.
- It does not run JavaScript for the on-page checks, so client-rendered content reads as thin. The Lighthouse section does execute JavaScript and shows the rendered result.
- It reads the homepage only. Inner pages, blog posts and product pages can be configured completely differently.
- It cannot see backlinks, domain authority or competitor data — those need a crawl of the wider web.
- Lighthouse lab numbers come from a simulated device on Google's infrastructure and vary run to run; field data, where present, is what real users saw.
FAQ
How this works, answered directly
01
What does this SEO checker actually test?
Around thirty checks across eight areas, all from what the site publishes: whether the homepage returns 200 over HTTPS and how http:// and www variants redirect; robots.txt, noindex directives, the canonical tag and the XML sitemap; the title, meta description, H1 and heading order, visible word count, language and image alt text; internal and external links; Open Graph and Twitter card tags; JSON-LD structured data and favicon; the mobile viewport; server response time, document size, compression, render-blocking scripts and mixed content; and HSTS plus the security-header grade. A Google Lighthouse run then adds performance, accessibility, best-practice and SEO scores with Core Web Vitals.
02
Does it show my Google ranking or keyword positions?
No, and no free single-fetch tool honestly can. Rankings depend on the query, the searcher's location and device, and hundreds of pages of competition. What this tool measures is everything on your side that ranking depends on: whether search engines can crawl and index the page, whether it says clearly what it is about, whether it is fast and mobile-ready, and whether it carries the structured data that rich results and AI answer engines read. Fix those and rankings follow; ignore them and no amount of content will.
03
How is the score calculated?
Every check carries a weight from 1 to 3 according to how much it matters — noindex, HTTPS, the viewport tag and the title carry 3; nice-to-haves like the favicon carry 1. A pass scores full weight, a warning half, a failure zero, and informational checks carry none. The score is the weighted percentage, graded A (90+), B (75+), C (60+), D (40+) or F. It is deliberately strict: a B means the basics are in place, an A means there is nothing obvious left to fix from the outside.
04
Why does the Lighthouse section take so long?
Because Google is actually loading the page. PageSpeed Insights spins up a simulated mobile device, loads the homepage with JavaScript running, records a performance trace and audits the rendered result. That takes ten to forty seconds, so it runs after the rest of the report and fills in when ready. If the site has enough Chrome traffic, the section also shows field data — the Core Web Vitals real visitors experienced over the last 28 days, which is what Google's ranking systems use.
05
The word count is low but my page has plenty of text. Why?
The on-page checks read the HTML the server sends and do not execute JavaScript. A site that renders its content client-side — many React, Vue and Angular builds do — sends a nearly empty document and fills it in the browser. Google does render JavaScript, but later and with a budget, so server-rendered or pre-rendered content still indexes faster and more reliably. The Lighthouse section, which does run JavaScript, will show whether the rendered page is healthy.
06
Is it safe to check a site I do not own?
Yes. The tool makes the same requests any browser or search engine crawler makes: the homepage, robots.txt, the sitemap and the http:// and www variants of the address, once each. It reads only public responses, sends no unusual traffic, and never attempts to log in, probe for vulnerabilities or crawl beyond those few URLs. Checking a competitor's homepage is ordinary competitive research; the results are things they already publish to everyone.
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A score tells you where you stand. We get you moving.
Technical SEO, Core Web Vitals, structured data for AI answer engines, and the engineering to ship the fixes — one team, no hand-offs. The first audit is free.
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