Fix your foundations · 15 free tools
Free Technical SEO Tools
Audit the technical signals that decide whether you rank — robots.txt, schema, canonicals, page speed, broken links, Open Graph and SSL.
Opengraph Viewer
Paste a URL and see the card it produces when someone shares it — title, description, image.
View OpengraphOpen Graph Generator
Write the Open Graph tags, preview the card, copy the markup.
Generate Open Graph tagsRobots.txt Checker
Fetch any site's robots.txt and test one URL against it: allowed, or blocked by which rule.
View robots.txtNoindex Checker
Whether a page is set to noindex, checking the header and the meta tag both.
Check noindexBroken Link Checker (404 Checker)
Every link on a page that no longer resolves, in one list.
Check broken links404 Page Checker
Scan one page for dead internal and outbound links, and see where each one pointed.
Check linksOn-Page SEO Checker
Titles, metas, headings, images, links and keyword use on a single page, with the fixes.
Check on-page SEOWebsite Speed Test
Load time, interactivity and layout stability, measured rather than estimated.
Check page speedSchema Markup Generator (JSON-LD)
Build valid JSON-LD for the schema.org types worth having, required properties included.
Generate markupFavicon Checker
Which icons your site actually serves — favicon, Apple touch, Android, Windows tiles.
Check iconsCanonical Tag Scanner
Read the canonical on every page and catch the ones pointing somewhere they should not.
Scan tagsDomain Rating (DR) Checker
Your domain rating, and what the backlink profile behind that number looks like.
Check domain ratingBrowse other tool categories
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