SEO tools

Audit pages, trace redirects, check SSL and DNS, test mobile-friendliness and preview social shares. Free, with no sign-up.

Technical and on-page SEO in one place

These tools cover the checks SEO specialists run every week. Start with the On-Page SEO Checker for a full review of a page's title, meta description, headings, canonical tag, images, links and structured data. Use the Mobile-Friendly Test to see the page on a phone-sized screen and find text that's too small or content that's too wide.

Redirects, status codes and site moves

The HTTP Status Code Checker checks up to 20 URLs at once, and the Redirect Checker traces every hop to find chains, loops and temporary redirects. When you move pages or a whole site, the Bulk Redirect Generator turns a list of old and new URLs into ready-to-use rules for .htaccess, Nginx, Shopify and more.

Domains, security and sharing

The SSL Checker confirms a certificate is trusted, covers the right names and isn't about to expire, and the DNS Lookup shows every DNS record with a quick check of email security. Before you share a page, preview it with the Open Graph Checker and Twitter Card Validator, and tag campaign links with the UTM Builder so you can measure the traffic they bring.