What Is My IP?

What is my IP address?

Which public address does the internet see for me, and what does its reverse DNS say?

Your public IP address

104.28.152.166

IPv4
Run IP WhoisCheck the blocklists
Warning

104.28.152.166 works, with 1 warning worth fixing.

0 fail · 1 warning · 0 pass · 1 note

  1. Warning

    F1No reverse DNS for this address

    No PTR record answers for it. Receivers judge mail servers by their PTR, and some services treat an unnamed address as more suspicious.

    FixResidential and mobile addresses usually have none; on a mail server, ask whoever controls the address to set one.

    Why this matters and how to fix it →
  2. Note

    F2Announced by AS13335 (CLOUDFLARENET - Cloudflare, Inc.)

    The origin AS is the network routing this address today, which can differ from the registered owner.

What the connection and the records say

FieldValue
Reverse DNS (PTR)none
Network owner (RDAP)unknown
Country (RDAP)unknown
Network rangeunknown
Origin ASN (RIPEstat)AS13335 — CLOUDFLARENET - Cloudflare, Inc.
BrowserChrome 152.0.0.0
Operating systemLinux
Device typeDesktop
Languageen-US
User agentMozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/152.0.0.0 Safari/537.36
Raw lookup data
{
  "ip": "104.28.152.166",
  "ipVersion": "IPv4",
  "reverseDns": null,
  "owner": null,
  "network": null,
  "country": null,
  "asn": "13335",
  "asnHolder": "CLOUDFLARENET - Cloudflare, Inc.",
  "browser": {
    "name": "Chrome",
    "version": "152.0.0.0"
  },
  "os": "Linux",
  "device": "Desktop",
  "language": "en-US",
  "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/152.0.0.0 Safari/537.36"
}

How to read the results

Your public IP address is the address our server saw when your browser connected. If you're on a home or office network, it belongs to your router or firewall, not your computer: every device behind it shares this address through NAT. On a VPN, you see the VPN provider's exit address. On mobile data you may see an address shared by thousands of subscribers (carrier-grade NAT).

IPv4 or IPv6. If your network supports IPv6, browsers usually prefer it, so you may see a long address like 2001:db8::25. Your network may still have an IPv4 address that other sites see over IPv4.

Reverse DNS (PTR) is the hostname your provider published for the address. Providers often encode the region and connection type in it, and mail servers use it as a legitimacy check. A residential-looking PTR on an address that sends mail is a red flag for receivers; see reverse DNS for mail servers.

Network owner and country come from the address's registration record at its regional internet registry (RDAP). The country is where the address block is registered, which is often not where you are: corporate networks, mobile carriers and VPNs regularly register blocks in another country. We don't estimate a city.

ASN identifies the network that announces your address on the internet, from RIPEstat routing data.

Browser and user agent show what your browser told us about itself. The user agent string is sent with every request to every site.

Common questions

Why does my IP change? Most home and mobile connections use dynamic addresses that change when the router restarts or the lease expires. Business connections can request a static IP.

Is this the address my email is sent from? Not necessarily. Mail sent through Microsoft 365, Google Workspace or another provider leaves from their servers. Only mail sent directly from your own server uses your network's address. Find the real sending IP in a message's Received: headers.

Should I hide my IP? Every site you visit sees it; that's how the internet routes replies. A VPN replaces it with the VPN provider's address. That hides your network from the sites you visit, but shifts trust to the VPN provider.

Next steps

Want to know who owns an address, or whether it's on a spam blocklist? Use IP Whois and the Email Blacklist Check. Both have a "use my IP" button.

Updated 26 October 2026

Related checks

  • IP Whois

    Who owns this IP address, and where do I report abuse from it?

  • Reverse DNS Lookup

    Which hostname does this IP address claim, and does that name point back?

  • BGP Route Lookup

    Which network announces this address block, and who is responsible for it?

FAQ

Why is my location not shown?

City-level geolocation comes from commercial databases that infer location from address blocks, and it is routinely wrong on mobile and VPN connections. Only what public records state is shown here: the registered network and its country.

Why am I seeing an IPv6 address?

If your network and browser both support IPv6, the browser prefers it. Your device likely also has an IPv4 address that other services may see instead.

Can websites see my IP address?

Yes, every site you visit receives your public IP as part of the connection. A VPN or proxy substitutes the provider's address for your own.