107 SEO checks
Broken links, redirect chains, missing titles and descriptions, H1s, canonicals, hreflang, alt text, noindex, thin content and more.
Technical SEO crawler · Dashboard · JSON API
The SEO crawler that won't stay quiet about your site's problems.
Screaming Cow crawls your website, checks every page against 107 technical SEO rules and tells you what to fix first. Read it in the dashboard, or drive the whole audit from your own code with the API.
What it is
A full technical SEO audit, loud and clear
Screaming Cow is a self-hosted crawler. Point it at a website and it follows every link it can find, records each page, and checks it for the problems that cost rankings.
Health score and priorities
One number for the site, and a ranked list of what to fix first by severity and by how many pages it touches.
A dashboard to dig in
Charts, issue lists, a page explorer with every link and resource, and sitemap coverage for each project.
Speed and Core Web Vitals
PageSpeed Insights for your front page, mobile and desktop, with the Core Web Vitals Chrome users actually saw.
Reports you can hand over
Download the audit as HTML, PDF, Excel or JSON, export URLs to CSV, or keep a WACZ archive of the whole crawl.
A complete JSON API
Create projects, toggle their settings, start crawls and fetch every result with an API key. No clicking required.
How it works
Three steps, by hand or by API
-
1
Sign up and add a site
Create an account, then add the site from the dashboard or with
POST /projects. Pick which checks to run; every crawl covers the whole site. -
2
Crawl it
Press Crawl Now and watch it live, or call
POST /projects/{id}/crawlsfrom a script, a CI job or a cron. -
3
Read the results
Browse the report in the dashboard, download it, or pull the report, issues and pages as JSON into your own tools.
Ready to make some noise about your SEO?
Create an account, add your site and get your first report in minutes.