How do I check a proxy?

Paste the proxy in the IP:PORT or IP:PORT:LOGIN:PASSWORD format and click “Start check” — the checker detects the protocol itself.

Can I check multiple proxies at once?

Yes, up to 200 proxies per check, one per line. Results appear as they are checked.

Why does a proxy fail the check?

Most often — a wrong login or password, a different port, the IP is not whitelisted or the traffic has run out.

Why does the speed differ from real use?

The checker measures the response time from its own server. You and the target website are at a different distance from the proxy.

How do I check a proxy with IP authorization?

Paste the proxy in the IP:PORT format. The check passes only if our server address is in the proxy whitelist — it is easier to check such a proxy manually from your own computer.

How do I check a proxy server without software?

Paste it into the proxy checker on this page — nothing to install. Or connect the proxy in your browser and open the My IP page.

Can I check rotating residential proxies?

Yes. The exit IP may differ on every check — this is normal for rotating proxies.

Proxy Checker Online

Check proxies online: paste a list to see which proxies work, their type, country, speed and anonymity. HTTP, HTTPS, SOCKS4 and SOCKS5, with or without login and password.

Proxy list

Proxy format

One proxy per line, the host can be an IP address or a domain. Lines without login and password (hostname:port) are accepted in any format. Up to 200 proxies per check, the protocol is detected automatically.

Check result

What the proxy checker shows

A short note on every field of the result. Details are in the sections below.

Status

Whether the proxy works

Type

HTTP, HTTPS, SOCKS4 or SOCKS5

Country

Where the proxy IP is located

Speed

Response time

Anonymity

Whether a website can tell a proxy is used

Exit IP

The address websites see

What is a proxy checker

A proxy checker connects to every proxy in the list and shows whether it works, its type, country, response speed and anonymity.

How to check proxies online

1
Paste the proxies into the field — one per line.
2
Pick a format or keep auto-detect — the checker detects the protocol itself.
3
Click “Start check”.
4
See the result for every proxy: whether it works, type, country, speed and anonymity.

Format	Example	When
IP:PORT	203.0.113.5:8000	Proxies without a password or with IP authorization
IP:PORT:LOGIN:PASSWORD	203.0.113.5:8000:user:pass	Proxies with login and password
LOGIN:PASSWORD@IP:PORT	user:[email protected]:8000	The same proxy in URL format

HTTP, HTTPS, SOCKS4 and SOCKS5: the difference

Protocol	What it carries	Login and password	Used in
HTTP	Web traffic	Yes	Browsers, scrapers, most apps
HTTPS	Web traffic through a secure tunnel	Yes	HTTPS websites
SOCKS4	Any TCP traffic	No, IP only	Legacy apps
SOCKS5	TCP and UDP	Yes	Antidetect browsers, messengers, UDP apps

If an app is set to the wrong protocol, a working proxy will look dead. The checker detects the protocol itself — see the “Type” column and connect the proxy with the same one.

How to check proxy anonymity

Level	What a website sees
Transparent	Your real IP is passed in the headers — the proxy hides nothing
Anonymous	Your real IP is hidden, but the headers show a proxy is used
High (elite)	Your real IP is hidden and the headers show no signs of a proxy

The checker sends a request through the proxy and looks at the headers that reached the server. The level is determined from them.

Checking proxy availability and validity

A proxy is working and valid if it responds, accepts the login and password and passes the request to a website. If the check fails, the reason is usually one of these:

Wrong login or password — a common copy-paste mistake.
The app uses the wrong protocol: a SOCKS5 proxy is connected as HTTP.
Wrong port — one IP can have different ports for different protocols.
IP authorization is on and the address is not whitelisted.
The traffic or rental period has run out.
The proxy is overloaded or temporarily unavailable.

More about the causes — in the article “Why proxies do not work: 10 common causes”.

How to check a proxy server manually

In a browser: set the proxy in the browser or extension settings and open My IP — it should show the proxy IP.

From the command line — a request through the proxy to any website. A 200 response means the proxy works:

Terminal

curl -x http://LOGIN:PASSWORD@IP:PORT -I https://psbproxy.io
curl -x socks5h://LOGIN:PASSWORD@IP:PORT -I https://psbproxy.io

The socks5h variant sends DNS queries through the proxy as well — so your real region does not leak through DNS.

Speed in the checker vs in real use

The speed in the checker is the proxy response time from our server. In real use it will differ: much depends on where you and the target website are. The checker is useful to compare proxies with each other and weed out noticeably slow ones.

When you need reliable proxies

Scraping and data collection — rotating residential.
Multiple accounts in an antidetect browser — mobile or static ISP.
Rank and price monitoring — residential in the right country.
Ad verification in different regions — residential or mobile with city targeting.

PSB proxies: datacenter from $0.50/GB, residential from $0.60/GB, mobile from $1.50/GB, static ISP $2 per IP a month.

Use cases