What does Common Public Subdomains do?

Common Public Subdomains helps you get a practical SEO result you can verify without inflated claims.

Does Common Public Subdomains store my input?

Browser tools run locally and do not send your text to the server.

No. These tools help you audit and improve pages, but they do not guarantee rankings or AI answer inclusion.

Yes, all core tools are free for personal and professional use.

Browser tools process data locally. Server tools handle requests temporarily; only aggregated stats may be stored.

Pick a tool from the homepage or search by name, then follow the instructions on the tool page.

Use the language toggle at the top of the page to switch editions.

Tools links

Generate common subdomain guesses or analyze a pasted list — no live DNS.