Alternatives to Netpeak Spider

A desktop SEO crawler that audits websites for technical issues. 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 Netpeak Spider.

  • 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 desktop crawler that also runs on Linux and has a free tier up to 500 URLs, with advanced features on a yearly licence.

  • Sitebulb

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

    PaidProprietaryWeb

    Sitebulb is a paid crawler offered as desktop software and a cloud service, adding JavaScript crawling, prioritised hints and custom PDF client reports.

  • SiteOne Crawler

    Open-source website crawler that produces audit reports, offline mirrors and Markdown exports of a site.

    FreeOpen sourceWindowsmacOSLinuxCommand line

    SiteOne Crawler is free and open source with a desktop GUI and CLI, covering SEO, security, accessibility and performance audits.

  • 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 crawls sites in the browser instead of on the desktop, ranks issues by severity, and needs a paid Semrush subscription for full use.

  • Sitechecker

    An online SEO audit platform with a free on-page checker, site crawler, rank tracker and monitoring.

    FreemiumProprietaryWebBrowser extension

    Sitechecker is a web platform with a free page audit plus a paid crawler, monitoring and rank tracking, and a Chrome extension.

  • Ahrefs Free

    Free website analytics, technical site audit and SEO metrics from Ahrefs for verified websites.

    FreemiumProprietaryWeb

    Ahrefs Free provides a free technical site audit in the browser for verified sites you own, with backlink data, but full data needs a paid plan.

  • Checkbot

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

    FreemiumProprietaryBrowser extension

    Checkbot crawls hundreds of pages from a Chrome extension with over 50 SEO, speed and security checks, working on local development sites.

Also worth comparing

These listings name Netpeak Spider as their own alternative, so the relationship runs both ways.

  • Siteliner

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

    FreeProprietaryWeb

    Netpeak Spider is a paid desktop crawler for Windows and macOS focused on technical SEO audits, available with a free trial.

Similar software

Related functionality, not a direct replacement.