Official IP ranges of clouds, CDNs and crawlers
The current IP address lists of 23 clouds, CDNs, crawlers and services, from the lists the providers publish. Check an address, filter the list and download it for your firewall, nginx or bot protection.
Official IP prefix lists for the cloud providers, CDNs, search and AI crawlers, and webhook senders that show up in server logs. Use them to confirm that a request claiming to be Googlebot or GPTBot really is, to accept origin traffic only from your CDN, or to allowlist webhook senders on a firewall. For per-request checks inside an app, the ipbase API returns a data center flag alongside location and ASN on the Medium plan and above.
AI crawlers and assistants
Search engine and other crawlers
Cloud providers
CDNs
Services and webhooks
Uptime monitors
Frequently asked questions
Where do these IP lists come from?
How do I verify a crawler such as Googlebot or GPTBot?
Which AI crawlers publish their IP addresses?
IP geolocation API
Get this data in your app
ipbase returns location, ISP, ASN and time zone for any IPv4 or IPv6 address, up to 1,000 addresses per POST request. Security flags (VPN, proxy, Tor, data center) are on the Medium plan and above.
Read the documentation1,000 free requests every month. No credit card required.
GET https://api.ipbase.com/v2/info?ip=1.1.1.1
{
"data": {
"ip": "1.1.1.1",
"type": "v4",
"connection": {
"asn": 13335,
"organization": "APNIC and Cloudflare DNS Resolver project",
"isp": "Cloudflare, Inc",
"range": "1.1.1.0/24"
},
"location": {
"country": { "alpha2": "AU", "name": "Australia" },
"zip": "4000"
},
"security": { "is_vpn": null, "is_tor": null, "threat_score": null }
}
}Free IP tools
Example lookups: 8.8.8.8 · 8.8.8.0/24 · AS15169 · example.com · all IPv4 ranges