ThemeSniffer listing history

Find out which WordPress theme and plugins any website uses, right from the conversation. ThemeSniffer checks whether a site runs WordPress, names the active theme (and the parent theme when a child theme is used), says whether it is free on WordPress.org, premium or custom, and flags outdated versions. It lists the plugins it can see, grouped into page builders, e-commerce, SEO, forms, caching and more, notes when the design comes from a page builder rather than the theme, and compares several sites side by side with hosting, CDN and a speed snapshot.

When a site blocks the check, ThemeSniffer says who blocked it instead of guessing. Only plugins that leave traces on a site's public pages can be detected; backend-only plugins stay invisible to any outside scanner.

No account or API key is needed. The website address you ask about is sent to themesniffer.com, which fetches that public page and returns what it detected.