Bulk domain availability checker — WHOIS, expiry and reachability

A domain name availability checker that skips the one-by-one grind

The original job was PBN drop-hunting: take a long list of candidate domains and find which are actually free to register. The same list also answers a second question — for domains you already own or watch, when does each expire? Doing either by hand, one WHOIS lookup per domain, is unbearable past a handful. So we made a scanner that swallows the whole list at once.

A bulk domain availability checker tool: paste a big list, get a verdict on every domain

Drop in up to 500 domains or full URLs — duplicates and URL noise stripped automatically — and each row is resolved live: availability (free vs taken), WHOIS/RDAP registration and expiry date, days until it lapses (anything inside 90 days flagged), and the real HTTP response and redirect. Lookups are RDAP-first with a WHOIS-43 fallback, run server-side so ccTLDs like .ua resolve. Big lists run as a background job that survives you leaving the page, and the whole table exports to XLS.

Available domains first, so drops jump out

For every row, at a glance:

• Available vs registered — free to grab, or taken
• Expiry date — from WHOIS/RDAP
• Days until it lapses — with ≤90 days flagged
• Live status code — 200 / 301 / 404 / 5xx
• Redirect target — where a live domain sends you
• Batch totals — registered / expiring / available

Sift hundreds of candidates in one pass

Scan a big list of drop candidates and grab the ones worth registering — with available domains sorted first — instead of checking them one by one. Point it at domains you own to catch anything lapsing within 90 days and renew before it drops. For a portfolio you want watched continuously, it hands off to Sites Panel; this is the fast, on-demand scan.