Domain owner lookup
Scrape hundreds of webpages in one click with the Thunderbit Chrome Extension. Prefer to hand this job to AI? Use the Thunderbit API or Thunderbit MCP. Want us to run it for you? Use our Web Scraping Service.











































Find Domain Owners Fast
How to Look Up Domain Owner Using Thunderbit



Learn how to look up domain owner details
Look Up Domain Ownership
Check Privacy Protected Records
Review Registrant Data in a Table
Use Domain Data for Research Workflows
Discover More Free Tools
DKIM / DMARC checker
Check DKIM and DMARC DNS records for any domain to catch misconfigurations and improve email deliverability.
IP address lookup
Look up location, ISP, and network details for any IP address. Get clear insights for diagnostics, security checks, and quick reference.
MX Record Lookup
Check a domain's mail exchange records to verify email routing, priorities, and DNS setup for faster troubleshooting.
SSL checker
Check any site's SSL certificate status, expiry, issuer, and encryption details to confirm a secure connection.
Subdomain finder
Find known subdomains for any domain using public records and databases. Useful for security reviews, research, and domain inventory. Get a clean list you can act on.
Technology stack checker
Analyze any website URL to identify its tech stack, including frameworks, CMS, analytics, hosting, and more. Get categorized results with versions when available to benchmark competitors and plan builds faster.
Website down checker
Check whether a website is reachable or down by entering a URL. Get clear status results to tell local connection issues from server outages.
Website traffic estimator
Estimate monthly organic traffic for any URL, plus top keywords and sources. Quickly gauge SEO visibility to prioritize pages, campaigns, and competitors.
