Alternatives to Checkbot
Chrome extension that crawls a website and tests its pages for SEO, speed and security problems. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Checkbot
Chrome extension that crawls a website and tests its pages for SEO, speed and security problems.
Replacements
Listings that take over the same core job as Checkbot.
Screaming Frog SEO Spider
A desktop website crawler for Windows, macOS and Linux that audits sites for technical SEO issues.
Screaming Frog SEO Spider is a desktop crawler for Windows, macOS and Linux checking over 300 issues, with a free tier limited to 500 URLs.
Sitebulb
A website crawler for technical SEO audits, available as desktop software and a cloud service.
Sitebulb is a paid desktop and cloud crawler with JavaScript crawling, prioritised hints and custom PDF reports rather than a Chrome extension.
SiteOne Crawler
Open-source website crawler that produces audit reports, offline mirrors and Markdown exports of a site.
SiteOne Crawler is open source with a desktop GUI and CLI, auditing SEO, security, accessibility and performance and exporting offline mirrors.
Netpeak Spider
A desktop SEO crawler that audits websites for technical issues.
Netpeak Spider is a paid, closed-source desktop crawler for Windows and macOS focused on technical SEO audits, with a free trial.
Semrush Site Audit
A website audit tool in the Semrush platform that crawls a site for SEO and AI search issues.
Semrush Site Audit crawls sites on the web within the Semrush platform, with a limited free crawl and full use requiring a paid subscription.
Sitechecker
An online SEO audit platform with a free on-page checker, site crawler, rank tracker and monitoring.
Sitechecker runs on the web with a Chrome extension, adding rank tracking and monitoring, though most features beyond the single-page checker are paid.
SortSite
Website quality scanner testing accessibility, broken links, browser compatibility and SEO against over 1200 checkpoints.
SortSite scans accessibility, links, compatibility and SEO against over 1200 checkpoints, but its free demo only covers the first 10 pages.
Also worth comparing
These listings name Checkbot as their own alternative, so the relationship runs both ways.
Integrity
A free native Mac app that crawls a website and reports broken links.
Checkbot is a Chrome extension that crawls sites for broken links plus SEO, speed and security issues, with some features paid.
SEOquake
A free browser extension from Semrush for on-page SEO audits, link checks and page metrics.
Checkbot is a Chrome extension that crawls hundreds of pages for SEO, speed and security issues, with some features on a paid plan.
Siteliner
An online scanner that finds duplicate content, broken links and internal linking issues across a website.
Checkbot moves the crawl into a Chrome extension with over 50 SEO, speed and security checks and works on local development sites, with some features paid.
Similar software
Related functionality, not a direct replacement.
Detailed SEO Extension
A free browser extension that shows a page's SEO tags, headings and links in one click.
Dead Link Checker
Online broken link checker that crawls a website or single page and reports dead links.
Security Headers
A web service that analyses a site's HTTP response headers and grades them from A+ to F.
PageSpeed Insights
Google's free web tool that reports Core Web Vitals and Lighthouse results for any URL.
linkinator
A command-line broken link checker that crawls websites and local files to validate every link.
