Professional SEO reports and tools
Paste a URL. numberz fetches the page the way a search engine would and runs 36 checks over what comes back — no signup, no browser extension, nothing to install.
What the report looks at
Search engines
Title and meta description length, the heading structure, whether the page is indexable at all, the canonical tag, structured data, the balance of text to markup, and the links pointing in and out.
Speed
How long the server took to answer, the size of the HTML, the number of elements the browser has to build, whether the response was compressed, and whether scripts block the page from rendering.
Security
HTTPS and HSTS, mixed content, whether links opening in a new tab are protected, whether the server advertises its version, and whether email addresses are sitting in the page for scrapers to collect.
The basics
The doctype, the character encoding, the mobile viewport, robots.txt, the sitemap, the favicon, and whether a page that does not exist actually answers 404 rather than pretending to be fine.
The tools
Alongside the report there are 36 separate tools. Some ask the internet a question — DNS records, WHOIS registration, an SSL certificate's chain and expiry, where a redirect really ends up, what headers a server sends. Others do their work without leaving the page: encoding and decoding, hashing, formatting and minifying, colour conversion, QR codes, slug and meta tag generation.
What it costs
Running a report is free and always has been; you do not need an account for it. An account keeps your reports so you can compare a page against itself later, and a paid plan raises the monthly limit and opens the JSON API. The pricing page lists what each one includes.