Bulk DNS lookup: find the IP addresses of many domains
Bulk IP address lookup for domains: resolve many domains in a background job without holding a browser request open.
How bulk DNS lookup works
This is a bulk domain-to-IP lookup: you provide domain names and get their IP addresses back. It does not look up details about an IP address you already have, such as geolocation, WHOIS or reverse DNS. Bulk submissions are processed as controlled background jobs. Progress can be monitored while results are stored for viewing and CSV or JSON export. Limits and rate controls help keep the service available.
Read the full workflow explanation before running a large list.
Preparing a domain list
Paste one domain per line or separate domains with commas. Bare hostnames and full URLs are both accepted. Schemes, paths, ports, and query strings are removed so that only the public hostname is looked up, and Unicode domain names are converted to punycode automatically.
Entries that are not plausible public domains, such as IP addresses or names with an over-long label, are rejected immediately instead of slowing down the rest of the list. A domain that does not exist fails quickly, while a DNS timeout is retried automatically with a short delay.
When the job finishes, every result includes the domain, its resolved addresses, the status, and the timing. You can review the results on the page or download them as CSV or JSON, which makes it easy to compare lists, check a DNS change, or share findings with your team.