SEO
SEO Tools
25 tools · 3 run entirely in your browser
- Broken-link checker for one page
Check every link on a page and see what answers: broken, redirected, blocking us, or fine.
- Canonical and hreflang validator
Read a page's canonical declarations and hreflang set the way a crawler does, with the conflicts, relative URLs and malformed language codes that silently break them.
- Complete single-page SEO audit
Prioritised score, findings, evidence, impact and corrections
- Content freshness and date consistency
Compare every date a page states about itself - visible byline, time elements, Open Graph, structured data, Last-Modified - and find the ones that disagree.
- Duplicate and thin page detector
Crawl a site and group the pages sharing a title, description or heading, and see which pages carry far less text than the rest of the site. No word-count minimum, ever.
- Favicon, manifest and PWA checker
Check every icon a page declares, its web app manifest and its install metadata - with each file actually requested, because a declared icon that 404s shows as a blank square.
- Full-site crawler
Crawl a whole site and get the findings no single-page check can produce: duplicate titles, missing descriptions site-wide, broken internal links and a map of every page found.
- Image SEO analyser
Alt text, dimension attributes, lazy loading, format and weight for every image on a page.
- Indexability Checker
Find out whether search engines can index a page, and exactly what is stopping them.
- Internal-link analyser
Crawl a site and see its own link graph: which pages get the most internal links, which get none, which link nowhere, and which links do not say where they go.
- Meta and social tag generator
Build the title, description, canonical, Open Graph and X card tags for a page, with a preview of how it will look in search results and share cards.
In your browser - Mobile and accessibility quick audit
The mobile and accessibility failures readable from a page's markup: viewport, zoom blocking, language, alt text, unlabelled controls, nameless links and missing landmarks.
- Multi-page metadata comparison
Paste up to 20 addresses and see their titles, descriptions, canonicals and social tags side by side — including pages on different sites.
- Pagination audit
Audit a paginated page the way a crawler sees it: rel prev/next, where the canonical points, noindex, and the mistake that silently drops deep pages from the index.
- Raw HTML versus rendered HTML checker
Missing SSR content, metadata changes and hydration/rendering differences
- Redirect Chain Checker
Trace every hop a URL takes, and find the loops, temporary redirects and downgrades along the way.
- Robots and sitemap generator
Generate robots.txt and sitemap.xml together, with warnings for the rules that quietly empty a site out of search — and a cross-check that neither file can do on its own.
In your browser - Robots.txt tester
Test whether a URL may be crawled, under Googlebot, Bingbot and the rest, with the exact robots.txt line that decided it.
- Schema generators
Build valid JSON-LD for Article, NewsArticle, Organization, LocalBusiness, Product, SoftwareApplication, breadcrumbs and FAQ pages, with the requirements Google documents for each.
In your browser - Search snippet preview
See how a page's title, URL and description are likely to appear in search results, on desktop and on mobile.
- Social and link preview
See what a page looks like when it is shared: Open Graph, X cards, and whether the preview image actually exists.
- Structured data validator
Find every JSON-LD, Microdata and RDFa block on a page, check that it parses, and see which rich-result requirements each entity meets.
- Technology/CMS detector
Identify the CMS, frameworks, analytics and infrastructure behind a site - every detection backed by the exact header, tag or path that gave it away.
- Title, meta and heading analyser
Read a page's title, meta description and H1-H6 outline exactly as a crawler sees them, with lengths, duplicates and structure gaps.
- XML sitemap validator
Find and validate a site's XML sitemap: format, URL count, protocol limits, malformed entries and sitemap-index children.