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Web & SEO

Build and check the pieces that help a website get found and shared: meta tags and social previews, robots.txt and XML sitemaps, schema markup, redirects, URL slugs and UTM campaign links.

Generate a file, copy it into your site, and use the related network tools to check headers and redirects once it's live.

Popular web & seo

Meta Tag GeneratorCreate title, description, canonical, Open Graph and Twitter card tags.Robots.txt GeneratorBuild a robots.txt file and test which URLs crawlers may fetch.UTM BuilderAdd UTM campaign tags to links, or split them out of existing URLs.Htaccess Redirect GeneratorWrite Apache and Nginx 301/302 redirect rules without regex mistakes.Slug GeneratorTurn titles and headings into clean, readable URL slugs.Robots.txt TesterTest a URL against robots.txt rules for any crawler.

More web & seo

Link Preview SimulatorSee how a link will look when shared, and which meta tags to fix.Meta Tag CheckerAudit a URL's SEO and social meta tags with a preview.MIME Type LookupLook up MIME types by extension and detect file types from magic bytes.Schema Markup GeneratorFill in a form and get valid, safely escaped JSON-LD schema markup.Sitemap CheckerValidate a sitemap or sitemap index and count its URLs.User Agent ParserDecode a user agent string into browser, OS, device and bot details.XML Sitemap GeneratorBuild sitemap.xml from a list of URLs, or validate an existing sitemap.