Web Check is described as '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' and is a popular Website Audit tool in the security & privacy category. There are more than 10 alternatives to Web Check for a variety of platforms, including Web-based, Google Chrome, Mozilla Firefox, Mac and Windows apps. The best Web Check alternative is SiteOne Crawler, which is both free and Open Source. Other great apps like Web Check are Google Lighthouse, SpiderFoot, Pingdom and OSINT-tool.