lotdom.com Bulk Domain Checker

This bulk domain availability checker is built for people who need to compare many domain name ideas quickly: founders naming a startup, marketers planning campaigns, agencies preparing client options, and domain researchers checking large lists.

Paste names on separate lines or separate them with commas. The tool automatically combines each name with your selected extensions, keeps your preferred TLDs in local storage, and lets you filter results to focus only on available domains.

The checker uses RDAP data and DNS fallback signals to verify whether domains are registered, available, or uncertain. Recent searches stay in your browser, can be deleted one by one, individual domains can be saved from results, and important searches can be saved above the recent list for easier repeat research.