PublicWWW Review

PublicWWW is a search engine for website source code. Type any HTML, JavaScript, or CSS snippet, an analytics ID, a widget embed, a meta tag, a framework fingerprint, and it returns every indexed site containing it, sorted by popularity. You can also search webserver HTTP headers, download results as CSV, and pull data programmatically through the developer API.

Key Features

• Search any HTML, JavaScript, or CSS snippet across the web
• Identify sites sharing the same analytics or ad network ID
• CSV download of search results
• API for integrating data into your own tools
• Results ranked by website popularity
• Webserver HTTP header search

Who It's For

PublicWWW is a favorite of digital and affiliate marketers, and it doubles as a sharp list-building tool for B2B outreach. Because you can find every site running a specific technology, a competitor's chat widget, an outdated platform, a particular WordPress theme, you can build prospect lists defined by their actual tech stack rather than firmographics alone. That makes it a natural companion to enrichment tools: PublicWWW finds the domains, your data stack finds the people. Listed pricing starts at $33, with limited free searching available on the site.