Get an insight into the inner-workings of a given website: uncover potential attack vectors, analyse server architecture, view security configurations, and learn what technologies a site is using.


The best Website Audit alternative to SiteOne Crawler is Web Check, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to SiteOne Crawler and nine of them are Website Audit Tools so hopefully you can find a suitable replacement. Other interesting Website Audit Tool alternatives to SiteOne Crawler are urlscan.io, SEO PowerSuite, HTTP Observatory and Netpeak Spider.
Get an insight into the inner-workings of a given website: uncover potential attack vectors, analyse server architecture, view security configurations, and learn what technologies a site is using.


urlscan.io is a free service to scan and analyse websites. When a URL is submitted to urlscan.io, an automated process will browse to the URL like a regular user and record the activity that this page navigation creates.




Features four integrated cross-platform desktop tools for keyword research and ranking, on-page site audits, backlink analysis, and link building. Offers automated SEO checks, multi-language support, custom reports, and competitor analysis for improved website optimization.




Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.


Netpeak Spider is an SEO crawler for a day-to-day SEO audit, fast issue check, comprehensive analysis, and website scraping.




Free desktop SEO crawler - open source alternative to Screaming Frog and similar tools. Crawl websites, analyze links, extract SEO data, and export results without subscription fees.

Screpy is an AI-based web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. It's powered by Lighthouse and it also includes some different analysis tools (SEO, SERP, W3C, Uptime, etc).




CrawlRhino SEO Crawler is an SEO spider tool and website crawler that scans websites to identify technical SEO issues, analyse site structure, and collect important on-page SEO data for optimisation.




Our AI-Generative software helps you improve and discover coding and On-Page SEO issues that negatively impact your website search performance and rankings.


