PublicWWW is a specialized search engine that indexes the public source code of websites. Instead of searching by keywords or backlinks, you search by code fragments like JavaScript variables, tracking IDs, HTML comments, libraries, or specific functions.
It’s commonly used by developers, security researchers, SEO professionals, and SaaS founders who need visibility into how websites are built.
If you’ve ever needed to:
- Find websites using a specific script or library
- Audit third-party code usage
- Detect exposed keys, trackers, or outdated tech
- Research competitors’ tech stacks
…PublicWWW saves hours of manual inspection. It turns the web into a searchable codebase.
Security teams use it for vulnerability discovery. Marketers use it to find sites running specific analytics or ad tech. Developers use it to debug, benchmark, or research implementations in the wild.
PublicWWW continuously crawls public websites and indexes their HTML, JavaScript, and inline assets. You run searches using plain text or operators (AND, OR, NOT) to narrow results.
Free access is limited. Paid plans unlock deeper history, more results, alerts, and API access. Important note: it only indexes publicly accessible code—not private repos or gated apps.
