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VPN Checker and IP Reputation Test
See whether an IP address looks like a VPN, proxy, Tor exit or data center, and whether it appears on spam and abuse blocklists.
About IP Reputation
An IP reputation check shows how the rest of the internet is likely to treat an address. We combine several signals: the official Tor Project exit list, the type of network that owns the address (home ISP, mobile carrier, hosting company or VPN provider), hints in the reverse DNS name, and five public spam and abuse blocklists. It helps you find out whether a VPN is detectable, why a website keeps showing you captchas, or why your mail is being rejected. Results are indicators, not proof.
Frequently asked questions
How do I know if my VPN is working?
Compare your address, location and network with your VPN switched off and on. They should all change. Then run the WebRTC leak test and check that the IPv6 line on the home page is empty or belongs to the VPN. Finally, use this checker: a working VPN address usually shows up as a hosting or VPN network, not your home provider.
Can you tell if I am using a VPN or proxy?
Only partly. We check whether the address is on the official Tor exit list, whether its network owner is a known VPN provider or a hosting company, and whether its hostname looks like a VPN. Most VPNs run on data center networks, so those are easy to spot. Residential proxies and some private VPNs look like ordinary home connections and cannot be detected from public data.
What does it mean if my IP is on a blocklist?
A blocklist is a public list of addresses that have been seen sending spam or abusive traffic. Being listed can make mail servers reject your email and some websites challenge or block you. It often happens to shared addresses, such as a VPN server or a mobile network, because of other users. Most lists have a removal form, and entries expire on their own after a while.
Why are Spamhaus lists missing?
Spamhaus refuses queries that arrive through large public DNS resolvers, so a check made this way cannot give a trustworthy answer. We only show lists that respond correctly, and we mark any list that fails to answer as unavailable instead of guessing.