Domain IP History Lookup
Enter a domain to see the IPv4 (A) and IPv6 (AAAA) addresses recorded for it, with the dates of each address and the network announcing it when the data was retrieved.
IP history guides
Hosting history Why the network is often not the host.
Sites behind a CDN Anycast addresses and older origin addresses.
What an IP history shows How records are grouped and dated.
Comparing addresses with a hosting change
Netlify's 2025 load balancer change replaced 147.75.40.150 with 75.2.60.5. A site following that update could have both addresses in its history while staying on Netlify. Compare addresses with hosting platform changes
The network (ASN) shown is the one announcing the address when the data was retrieved, which is not always the platform the site uses: a Netlify site using 75.2.60.5 shows Amazon and a Shopify store shows Cloudflare.
Country and city of an address
Locations come from a GeoLite2 database and show where each address is located today, not where it was when recorded. CDN addresses are usually anycast: one address is served from many places, and its country says nothing about where the site's server is.
The records behind a result
A search returns the 50 most recent A and AAAA records from Profundis. When all 50 are dated, the page then loads older dated records, 50 at a time, up to 300 records, and groups them by address. A domain behind a CDN can have hundreds of recent CDN addresses, and older addresses can fall beyond that limit. When more records exist, the page shows the total; the rest, with filters and exports, is on Profundis.
Search the exact name you want to check: example.com and www.example.com return separate histories. How a result selects and groups records
Frequently asked questions
How can I find the old IP addresses of a website?
Search for its domain with the form at the top of this page. The result lists each address recorded for the domain once, with the earliest and latest dates of its records.
Can I see other websites on the same IP address?
Yes. Each address links to a Profundis search for the domains recorded on it, and to its page on reverseips.com when that site publishes one. A shared address does not show a common owner: many unrelated sites share the addresses of hosting platforms and CDNs.
What is sent to Profundis when I search?
Only the domain. Your IP address is not passed on. Lookups are free, without an account, after a Cloudflare Turnstile check.