Your IP address, provider and blocklists

The address every site sees when you connect, the network it belongs to and its reputation in spam blocklists. Your browser asks the sources itself, and this page keeps nothing.

IPv4checking…
IPv6checking…

Provider and location

ASN
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Provider
…
Network
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Registry
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Country
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Region
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City
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Time zone
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World map with the approximate location of your IP
The dot marks the approximate city. GeoIP databases know location to the city at best, not the street.

Country in five GeoIP databases

Sites pick your country from one of these databases. When the databases disagree, two shops can show you prices for two different countries.

  1. Cloudflare…
  2. ipinfo.io…
  3. ipapi.co…
  4. ipwho.is…
  5. GeoJS…

Spam blocklists (RBL)

Mail servers and anti-fraud systems check addresses against these lists. A listing means spam or attacks came from this IP or its network.

Spam blocklists (RBL)0/17checking…

  • SpamCopchecking…
  • Barracudachecking…
  • PSBLchecking…
  • UCEPROTECT 1checking…
  • UCEPROTECT 2checking…
  • DroneBLchecking…
  • blocklist.dechecking…
  • Mailspikechecking…
  • GBUdbchecking…
  • JustSpamchecking…
  • NordSpamchecking…
  • 0spamchecking…
  • InterServerchecking…
  • s5hchecking…
  • SPFBLchecking…
  • Suomispamchecking…
  • SWINOGchecking…

WebRTC, time zone and User-Agent

Sites compare these with your IP. A mismatch gives away a proxy or VPN even when the address itself is clean.

IP through WebRTC

checking…

Computer time vs IP time

Time zone of this computer
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Time zone of the IP
…

User-Agent

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Your connection to the site

How your browser reached this page: protocol, encryption and the Cloudflare node that answered.

Protocol
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Encryption
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Key exchange
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Cloudflare node
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Cloudflare WARP
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IPv6
…

Find the IP of your server

Run one command on the machine that runs your scraper or software. The address it prints goes into the whitelist.

Linux and macOS
curl -4 -s ifconfig.me
Windows
curl.exe -4 -s ifconfig.me
Proxy checker for LinuxBash script: checks a list in hundreds of threads, with RBL

Questions about IP addresses

01Why do sites show different cities for my IP?
Each site uses its own GeoIP database, and the databases update on different schedules. Providers move address blocks between cities, so the city often differs while the country matches.
02What does ASN mean?
An ASN is the number of the network your address belongs to. The provider name next to it tells you who owns the block: a home ISP, a mobile operator or a company.
03My IP is in a blocklist. What now?
With a dynamic home address, restart the router and you get a new IP. With a static one, find the cause, such as an infected device or an open mail relay, and request removal on the list site. Most lists drop old entries on their own within days.
04Which address goes into the RemProxy whitelist?
The IPv4 of the machine that sends requests through the pool. For a server, run the command from this page on the server itself, not on your laptop. One account holds up to 10 addresses.
05Does the page save my IP?
No. The checks run in your browser, which queries ipinfo.io, ipapi.co, ipwho.is, GeoJS, Cloudflare and public DNS directly. RemProxy servers never see the results.
06What is a WebRTC leak?
WebRTC lets the browser make calls and can learn your address past the proxy. When the WebRTC IP differs from the connection IP, a site sees both and knows you are behind a proxy. Turn WebRTC off in your antidetect browser or with an extension.
07Why compare the time zone with the IP?
A site takes the country from your IP and the time from your computer clock. A German IP with a Moscow clock tells the site you are not in Germany. Antidetect browsers set the time zone to match the proxy; a regular browser does not.

Need addresses for mass tasks?

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Data comes from ipinfo.io, ipapi.co, ipwho.is, GeoJS, RDAP, Cloudflare and public DNS over HTTPS. Your browser sends the requests, nothing goes to RemProxy servers.

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