Alternatives to SiteOne Crawler

Open-source website crawler that produces audit reports, offline mirrors and Markdown exports of a site. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as SiteOne Crawler.

  • Screaming Frog SEO Spider

    A desktop website crawler for Windows, macOS and Linux that audits sites for technical SEO issues.

    FreemiumProprietaryWindowsmacOSLinux

    Screaming Frog SEO Spider is a closed-source desktop crawler for the same three systems with over 300 SEO checks, but the free version stops at 500 URLs.

  • Sitebulb

    A website crawler for technical SEO audits, available as desktop software and a cloud service.

    PaidProprietaryWeb

    Sitebulb is a paid, closed-source crawler with desktop and cloud options, JavaScript crawling and custom PDF reports for clients.

  • Netpeak Spider

    A desktop SEO crawler that audits websites for technical issues.

    PaidProprietaryWindowsmacOS

    Netpeak Spider is a paid, closed-source desktop crawler for Windows and macOS focused on technical SEO, without a scriptable CLI.

  • Siteliner

    An online scanner that finds duplicate content, broken links and internal linking issues across a website.

    FreeProprietaryWeb

    Siteliner is a free web service that finds duplicate content and broken links across public sites, with no install but no offline mirror or CLI.

  • Checkbot

    Chrome extension that crawls a website and tests its pages for SEO, speed and security problems.

    FreemiumProprietaryBrowser extension

    Checkbot runs as a Chrome extension crawling sites for SEO, speed and security issues, with some features paid and no Markdown export.

  • Semrush Site Audit

    A website audit tool in the Semrush platform that crawls a site for SEO and AI search issues.

    FreemiumProprietaryWeb

    Semrush Site Audit moves crawling to a hosted platform with severity-ranked issues, but the free crawl is limited and full use needs a subscription.

Also worth comparing

These listings name SiteOne Crawler as their own alternative, so the relationship runs both ways.

  • Asqatasun

    Open-source, self-hosted engine that audits web pages and whole sites for accessibility and SEO.

    FreeOpen sourceSelf-hosted

    SiteOne Crawler is an open-source desktop and CLI crawler auditing SEO, security, accessibility and performance from your own machine instead of a server.

  • webhint

    A customizable linting tool that checks websites for accessibility, speed, compatibility and security problems.

    FreeOpen sourceBrowser extensionCommand line

    SiteOne Crawler audits whole sites for SEO, security, accessibility and performance with a desktop GUI and CLI, but has no editor integration.

Similar software

Related functionality, not a direct replacement.