Measure a site before you argue about it.
Point it at a URL. It crawls the pages, runs 31 technical, on-page, content and speed checks, and hands back a list ranked by what to fix first.
Try one:
No account needed. Crawls up to 500 pages, six levels deep, obeying robots.txt. A large site can take a few minutes. Your audits are never listed publicly.
Site audit
Findings ranked by what to fix first
Every rule reports the pages it fired on, grouped and sorted worst first. A to-do list rather than a spreadsheet of raw rows.
- Overall score plus technical, on-page, content and speed
- Severity, affected page count and an example URL per finding
- Up to 500 pages, six levels deep
Single-purpose tools
One question, one answer
Thirty-seven tools that each check one thing about one URL. Search them, or browse by what you are checking.
- Meta tags, headers, redirects, DNS, TLS, robots and sitemaps
- Every card says what input it needs before you open it
- No signup on any of them
Results
Measured values, and the limits around them
Anything read off the wire renders as data. Where a number cannot be measured, the result says so in the place the number would have been.
- Response headers, status chains and certificates in full
- Copyable output for anything generated
- Blocked ports and refused DNS reported, never shown as zero
How the audit works
- 1
It fetches your pages
Starting from the URL you give it, obeying robots.txt, following links to the depth and page count you set. Sitemap URLs are pulled in too, so pages nothing links to still get seen.
- 2
It runs 31 rules over what came back
Status codes, redirect chains, canonicals, titles, headings, alt text, structured data, response time, document weight. Each rule reports the pages it fired on.
- 3
It ranks the findings
Grouped by rule and sorted worst first, with the number of affected pages and an example URL. A to-do list, not a data dump.
Start with one question
most usedEvery card says what you need in hand before you open it. No signup for any of them.
Meta Tags AnalyzerMeta & SocialPull every meta tag off a page and grade the ones that matter.Needs a page URLHTTP Headers CheckerServer & HeadersEvery response header, with the security ones graded.Needs a page URLRedirect CheckerServer & HeadersTrace the full redirect chain hop by hop, and spot loops.Needs a page URLFind DNS RecordsDomain & DNSA, AAAA, MX, NS, TXT, SOA and CNAME records in one lookup.Needs a domain nameKeyword Density CheckerText & KeywordsTop keywords and phrases with density, stop-words excluded.Paste text or give a URLRobots.txt GeneratorGeneratorsBuild a valid robots.txt with the right defaults and your sitemap.Fill in a form
Or browse by what you are checking
37 toolsMeta & Social5 toolsTags, previews and share cards.Page Analysis8 toolsWhat a crawler actually sees.Text & Keywords6 toolsContent, density and readability.Domain & DNS5 toolsHosting, records and certificates.Server & Headers5 toolsStatus codes, redirects, robots.Generators8 toolsProduce markup, files and URLs.
What it will not tell you
Every SEO tool has a boundary. Most hide theirs behind a made-up score.
- Domain and page authority
- Third-party link-graph metrics. They need a crawl of the whole web, licensed from Moz or Ahrefs. Left out rather than approximated.
- Backlinks
- Same problem: an index nobody can build from a single server. No backlink counts, no referring-domain totals.
- Keyword search volume
- Volume and difficulty come from clickstream data sold under licence. The keyword tools here measure your own content instead.
- Rankings and index status
- Checking these means scraping search results, which is blocked and unreliable. Connect Search Console for the real numbers.
- Core Web Vitals
- Response time, document weight and compression are measured. Field and lab vitals need the PageSpeed Insights API, which is not wired up yet.
- Anything the network blocks
- Refused DNS queries, closed ports, unreachable hosts: reported in place of the value. An empty result never silently reads as zero.
Questions
Do I need an account?
No. Every tool and the site audit run without signing in. An account only keeps your history, so you can find a result again later.
Does it show domain authority or backlinks?
No. Those come from licensed third-party link indexes that cost thousands per month. Rather than show an invented figure, the tools leave them out and say so.
How many pages will it crawl?
Up to 500 pages per audit, following links six levels deep from the URL you give it. It respects robots.txt for its user-agent, so anything disallowed there is reported as blocked rather than fetched.
Is the audit score comparable between sites?
Yes. Each category score is a penalty density, so a five-page site and a five-hundred-page site with the same proportion of problems score the same.
What happens when something cannot be measured?
It says so, in the place the number would have been. If a network blocks direct DNS queries, the DNS tool reports that MX records are unavailable rather than showing an empty table that reads as "none".
Are my audits visible to anyone else?
No. Audits are never listed publicly. Signed in, you see your own on your account page. A report link is only reachable by someone you give it to.
Does it check Core Web Vitals?
Not yet. It measures server response time, HTML document weight and compression per page. Field and lab vitals need the PageSpeed Insights API, which is not wired up.
Can I use the generated robots.txt and sitemap as they are?
Yes, the generators emit valid files. Back up your existing robots.txt and .htaccess before replacing them: a syntax error in .htaccess returns a 500 for the whole site.
Run one and see
An audit of a small site finishes in under a minute. Nothing to install, nothing to sign up for.