WhatRuns

What WhatRuns is

WhatRuns is a browser extension that identifies technologies used on websites, with a web platform also available. It can show website apps, content delivery networks, visitor tracking, WordPress plugins, and fonts. The maker describes its detection method as proprietary pattern recognition and says it adds between 50 and 100 web apps each day. Users can follow websites and receive notifications when a technology starts or stops being used. The company presents competitor analysis, sales intelligence, and website profiling as possible uses. Extensions are offered for Firefox and Chrome, and the browser extension is free at no cost with no sign-up required. WhatRuns says detection may involve public source code snippets and resources, along with timestamps and diagnostic information. Its privacy policy says extension data is anonymised and aggregated before analysis or sharing and is not linked to identifiable users or personal browsing histories. Listed security measures include SSL/TLS encryption, access controls, secure authentication, monitoring, and vulnerability assessments. The maker cautions that detection can produce false positives or negatives, so results should be treated as a reference rather than definitive proof.