Free SEO checker: find the technical SEO problems on your website
The SEO checker reads up to 25 pages of your site the way a search engine does. It follows your links, reads your robots.txt and XML sitemap, and checks titles, meta descriptions, headings, canonical tags and structured data. Every problem comes with the pages it's on and how to fix it.
- No signup
- Up to 25 pages
- Results in 2–5 minutes
- PDF report included
What the SEO checker tests
SEO and content checks from the website audit. The free check runs the ones marked free; the Professional audit runs all of them on up to 150 pages.
SEO
19 free15 Professional
Broken links, redirect chains, robots.txt, XML sitemaps, noindex and canonical tags, page titles, meta descriptions, headings and structured data: whether search engines can find, read and index the pages you care about.
See every check (34)
- Links to your own pages work
- Pages load without server errors
- No redirect loops
- Redirects reach the page in one or two steps
- robots.txt allows search engines to read the homepage
- robots.txt loads
- Key pages can appear in search results
- Each page names one preferred address
- Canonical tags are valid
- Canonical addresses load
- XML sitemap can be read
- Sitemap listed in robots.txt loads
- Every page has a title
- Page titles are unique
- Page titles are specific
- Every page has a meta description
- Every page has a main heading (H1)
- Structured data has no syntax errors
- Structured data uses known types and properties
- Links to other websites workProfessional
- Internal links point to final addressesProfessional
- Important pages are a few clicks from the homepageProfessional
- Sitemap pages are linked from your siteProfessional
- robots.txt doesn't hide noindex tagsProfessional
- Canonical addresses can be indexedProfessional
- Similar pages name a preferred versionProfessional
- Sitemap and canonical tags agreeProfessional
- Sitemap lists only indexable pagesProfessional
- Sitemap lists preferred addressesProfessional
- Meta descriptions are uniqueProfessional
- Main heading matches the page titleProfessional
- Your business is described consistentlyProfessional
- Link text says where links goProfessional
- Social sharing preview is setProfessional
Content
5 free9 Professional
Empty and placeholder pages, images that don't load, service pages that don't say what the service is, and pages that are copies of each other.
See every check (14)
- Pages have real content
- No placeholder text
- Images load
- Service pages describe the service
- No identical pages
- No near-identical pagesProfessional
- Service pages have distinct headingsProfessional
- Declared language matches the textProfessional
- Embedded videos loadProfessional
- No outdated offers or datesProfessional
- Text readabilityProfessional
- Spelling and grammarProfessional
- Key information is visible without clickingProfessional
- Downloadable documents loadProfessional
How to read your SEO check results
Each SEO check reports on every page it ran on. A missing title on one page is a quick fix. The same title on 20 pages usually means a template sets one title everywhere, so fix the template, not the pages.
Indexing problems come first. A noindex tag on a service page, a robots.txt rule that blocks your homepage, or a canonical tag that points to a different address can keep a page out of search results entirely. Fix those before anything cosmetic.
The SEO score counts only confirmed problems from checks that actually ran. It isn't a ranking prediction: rankings also depend on your content, your competition and links from other sites, which no on-site check can see.
Common SEO problems the checker finds, and how to fix them
These come up again and again on small-business sites. Most are quick to fix once you know where they are.
01
Broken internal links
Links to pages that return 404 or server errors waste visitors' clicks and search engines' crawl. The report lists each broken address and every page that links to it, so you can fix the link or redirect the address.
02
Redirect chains
A link that hops through two or three redirects before reaching the page slows visitors down and makes search engines work harder. Point links straight at the final address.
03
Duplicate or generic page titles
Titles like "Home", or the same title on every page, make your search results look interchangeable. Give each page a title that says what it's about and who it's for.
04
Missing meta descriptions
Without one, search engines pick a snippet from the page, sometimes the cookie notice or the menu. One sentence describing the page gives you control of what searchers read.
05
Noindex and canonical mistakes
A noindex setting left on from staging, or canonical tags that all point at the homepage, quietly remove pages from search. The report flags important pages that can't be indexed.
Check every page with the Professional audit
Up to 150 pages, all 139 checks, speed tests on 5 pages, a roadmap grouped by cause and a report that never expires. $99 one-time, or $79 when you upgrade from a free report within 48 hours.
SEO checker FAQ
Is this SEO checker free?
Yes, with no signup. The free audit runs the free SEO checks on up to 25 pages. It's the same audit as our free website audit, so the report also covers page speed, accessibility, security and contact checks.
What's the difference between an SEO checker and an SEO audit?
Many SEO checkers test one page. This one crawls up to 25 pages of your site, so it finds site-wide problems a single-page test can't see: duplicate titles, broken internal links, sitemap errors and pages that can't be indexed.
Does the SEO checker check keywords or backlinks?
No. It checks what's on your site: whether pages can be found, crawled and indexed, and whether each page is described properly. Keyword rankings and links from other sites need search-engine data, which this audit doesn't use.
Can it check structured data (schema markup)?
Yes. It checks that JSON-LD structured data parses without errors and uses known schema.org types and properties. The Professional audit also checks that your business is described consistently.
How often should I check my website's SEO?
After every redesign, platform move or batch of new pages, and every few months otherwise. Redirects and links break quietly as content changes.
Why does my SEO score differ from other tools?
Every tool weighs different checks. This score counts only confirmed problems from checks that ran, weighted by severity and the number of pages affected, and the report lists every check behind it.
More free website checks
- Free website audit
All 72 free checks in one report: SEO, speed, accessibility, security and local SEO.
- Free website speed test
Lab speed test and Core Web Vitals on a simulated phone.
- Free accessibility checker
Alt text, labels, contrast, zoom and tap targets in a real browser.
- Free local SEO checker
NAP consistency, LocalBusiness schema and contact paths.
Run the free check
Same free audit, no signup. Usually 2–5 minutes.