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. Search history stays in your browser so repeated naming sessions are easier to review.