CATEGORY12 tools
SEO & Web Tools
Meta tags, sitemaps, robots.txt, and other tools to check and improve how your site shows up on the web.
AvailableLocal
HTTP Status Code Lookup
Look up what an HTTP status code means.
AvailableLocalKeyword Density Checker
Count keyword or phrase density in a draft.
AvailableLocalMeta Tags Generator
Create SEO, Open Graph, and Twitter meta tags.
AvailableLocalMIME Type Lookup
Look up a file extension's MIME type, or the reverse.
AvailableLocalPunycode / IDN Converter
Convert domain names between Unicode and Punycode.
AvailableLocalrobots.txt Generator
Generate robots.txt rules and test a path.
AvailableServerSitemap XML Validator
Validate sitemap XML structure, URLs, and duplicates.
AvailableLocalSlug Generator
Turn titles and phrases into clean URL slugs.
AvailableLocalURL Parser & Query Inspector
Parse and inspect URL components.
AvailableLocalUser-Agent Parser
Parse a User-Agent string into browser, OS, and device.
AvailableLocalUTM Generator
Build campaign URLs with UTM parameters.
AvailableServerYouTube Tags Extractor
Extract public video tags, hashtags, title, description, and SEO metadata.