SEO Metadata
These tools cover the machine-readable layer of a page: the tags that tell search engines and social platforms what it is, and the files that control whether they are allowed to read it. Get them wrong and a page either renders badly in a share card or never gets indexed at all.
Write the tags
The Meta Tag Generator is the starting point — it emits the standard set plus Open Graph and Twitter Card markup in one block, so you rarely need the two single-purpose generators unless a platform specifically asks for them. Use the Schema Generator for structured data on top of that.
Preview before you publish
Every one of these catches a mistake that is invisible until the page is public. The SERP preview shows title and description truncation; the OG previewer shows the share card; the OG tester fetches a live URL so you can check someone else’s page — or your own deployed one.
Control crawling and indexing
Generate robots.txt to control what may be crawled, then test it against a specific URL before deploying — a stray wildcard can deindex a whole section. The sitemap generator gives crawlers the canonical list of your URLs.
Check content
Keyword density is a rough signal, not a target — use it to catch obvious repetition rather than to hit a percentage.
Guides on this topic
Where this fits
These tools live under SEO & Web in the main directory, and every tool page links back to this hub so you can see how it relates to the others.