Proxy Checker

See which addresses in your list are known to a proxy and VPN database: type, country and elite status. Paste a list or upload a file.

File Format for Upload

Each line holds one proxy with an IPv4 address: IP:PORT, IP:PORT:USER:PASS, USER:PASS@IP:PORT, USER:PASS:IP:PORT, IP:PORT@USER:PASS or with a protocol (http, https, socks4, socks5). The login, password and protocol are never sent; only the IP is checked.

or drag a .txt file into the box

The proxy checker looks up every IP from your list in an external IP reputation database, similar to the ones anti-fraud systems use. It does not connect to the proxy or measure its speed: to make sure a proxy works, open the IP check with the proxy on.

How it works

How the checker works

We read the list
One line, one address in any common format: IP:PORT, ip:port:user:pass, user:pass@ip:port, with a protocol and others, the same the format converter reads. The login, password and protocol are stripped in your browser; only the IP is checked.
We look the IP up in a proxy and VPN database
Our server queries an external IP reputation database. It holds addresses seen as proxies or VPNs, with their type and country.
We show what websites know about it
Anti-fraud and bot protection systems use similar databases. If an address is listed, a site with such protection is more likely to show a captcha or deny access.

Result

How to read the result

Listed as proxy

The database knows the address as a proxy or VPN. The Protocols column shows the type from the database; ELITE means the database considers the proxy elite, i.e. not revealing your IP.

Not listed

The database does not know the address as a proxy. It does not mean the proxy is down: the address may be new or clean, and websites block such addresses less often.

No answer

The database did not answer or the line could not be checked. Try again later.

Response time

How long the database lookup took. The checker does not measure the speed or availability of the proxy itself: it never connects to it.

FAQ

Questions and answers

Does the checker test that a proxy works?

No. The checker does not connect to the proxy, so it cannot tell whether it answers or how fast. To make sure a proxy works, set it up in your browser or app and open the IP check: it should show the proxy's address.

Why is a working proxy shown as Not listed?

The checker answers "does the database know this address as a proxy", not "does the proxy work". New, home and mobile addresses are often not in such databases.

Is it bad if my proxy is listed?

The better known an address is as a proxy, the more likely a captcha or a block on sites with anti-fraud protection. That is fine for scraping, but for social networks, ad accounts and marketplaces addresses missing from such databases are better.

Which formats and files are supported?

Paste the list or upload a .txt file up to 2 MB. One line, one address: IP:PORT, ip:port:user:pass, user:pass@ip:port, user:pass:ip:port, ip:port@user:pass or with a protocol, e.g. socks5://user:pass@IP:PORT. The address must be IPv4: lines with a domain instead of an IP are skipped, as the database is searched by IP only.

Are proxy logins and passwords sent anywhere?

No. The login, password and protocol are stripped from the line in your browser; only the IP and port go to the server.

Tools

Other free tools

Check IPYour IP address, country, city, ISP and an approximate spot on the map.Proxy ConverterConvert a proxy list between formats: ip:port:user:pass, user:pass@ip:port, URI and more.Anonymity CheckDoes your browser give away your real IP behind a proxy or VPN: WebRTC, IPv6, time zone.Free ProxiesPublic HTTP and SOCKS proxies, each checked with a real request through it.

Need addresses that are not in proxy databases?

Mobihub mobile proxy IPs are issued by the carrier, and ordinary subscribers go online through the same addresses. Create a proxy from your own Android phone.

Create a proxy See pricing