Online Proxy Checker — check proxies
A free proxy checker for bulk testing of proxy servers. Test up to 200 proxies at once: availability, speed, anonymity, protocol type, RIPE geolocation. Supports HTTP, HTTPS, SOCKS4, SOCKS5. Check proxies online before buying or using them.
Infrastructure in numbers
The proxy checker tests addresses from the ProxyElite pool — 895,824 IPv4 on our own hardware since 2012. All IP addresses, servers, and channels are owned by us, not rented from third parties.
Online proxy checker
Enter a list of proxies to check in IP:PORT or IP:PORT:USER:PASS format. Up to 200 proxies at once.
What the proxy checker tests
Technical facts without marketing. Every check is a specific parameter that affects the outcome of your task.
Availability check
- Determines proxy availability
- Tests connection and data transfer
- Tests connection stability
- Auto-detects protocol (HTTP/SOCKS)
Speed analysis
- Measures response time (ping)
- Estimates data transfer speed
- Determines proxy performance
- Compares against the data center benchmark
Anonymity check
- Determines level: Transparent/Anonymous/Elite
- Checks the HTTP_X_FORWARDED_FOR header
- Analyzes whether the proxy exposes your IP
- Shows whether it reveals proxy usage
Why check proxies
A proxy checker solves specific tasks: from parser debugging to anonymity testing. Below are typical scenarios.
Check before buying
Test free proxies from the list before using them. The checker will show which ones are working.
Parser debugging
Check whether the proxy works in Python/Scrapy/ZennoPoster. If the checker says "unavailable", the issue is with the proxy, not your code.
Anonymity check
Find out the anonymity level: Transparent (exposes IP), Anonymous (hides IP), Elite (full stealth). ProxyElite proxies are Elite.
Speed test
Measure the proxy's ping and speed. If response time is over 3000 ms, the proxy is slow and won't work for parsing.
Geolocation check
Find out the country and provider via RIPE. Important for geo-based ad testing and SEO monitoring.
List cleanup
Remove non-working proxies from a list. The checker filters by status, protocol, speed — export to TXT/CSV.
ASN identification
Check the proxy's ASN. If the ASN points to hosting (Hetzner, OVH), it's a data center. If it's Comcast/BT, it's an ISP.
Troubleshooting
If a website blocked your IP, check the proxy with the checker. If the proxy works but the site still blocks you, the problem is with the IP type.
How the proxy checker works
The technical mechanics without simplifications. Understand exactly what the checker does when you click "Check".
Connecting to the proxy
The checker sends an HTTP request to each proxy on the list. Format: IP:PORT or IP:PORT:USER:PASS. Auto-detects protocol: HTTP, HTTPS, SOCKS4, SOCKS5.
Timeout is 5–10 seconds. If the proxy doesn't respond, it is marked as "unavailable".
Anonymity check
The checker requests a page that returns the headers. It analyzes HTTP_X_FORWARDED_FOR and VIA:
Transparent — IP is forwarded. Anonymous — IP is hidden, but the proxy is visible. Elite — full stealth.
Speed measurement
The checker times the period from sending the request to receiving the response. This is the response time (ping). Additionally — the download speed of a test file.
Result: ms (ping) and Mbit/s (speed). For parsing, a ping under 1000 ms is important.
RIPE geolocation
The checker determines the country and provider through the RIPE Database — the official source for European IPs. It also shows the ASN.
2IP, MaxMind databases may show different data — they update with a delay.
Checked free vs paid proxies
A quick comparison: how paid ProxyElite proxies are better than checked free ones. For a detailed plan comparison, see the prices page.
| Parameter | Free (checked) | Datacenter ProxyElite | ISP ProxyElite |
|---|---|---|---|
| Uptime after check | Hours (30–60%) | 99.8% (30 days) | 99.8% (30 days) |
| Anonymity | Often Transparent | Elite (100%) | Elite (100%) |
| Speed | 1–10 Mbit/s | up to 1 Gbit/s | up to 1 Gbit/s |
| ASN (by whois) | Random | Hosting (Hetzner, OVH) | Real ISP (Comcast, BT) |
| Support | None | 24/7 | 24/7 |
| Price | $0 | $0.065/IP | $0.175/IP |
Workflow: from check to purchase
Four steps: check free proxies → see the limitations → buy paid ones → get stability.
Check free ones
Take addresses from the free list and test them with the checker above. Most will die within hours.
Compare with paid
Review the comparison table above. Paid proxies give 99.8% uptime and Elite anonymity — free ones simply can't.
Buy a plan
On the prices page, choose the type (Datacenter/ISP/rotating/personal), country, and number of IPs.
Check the paid ones
After receiving IPs, test them with the same checker. Confirm: Elite anonymity, speed, RIPE geolocation. 24-hour refund.
Connect in 5 minutes
Ready-to-use code examples for the most common scenarios. Connection details (IP:port@login:password) are available in your personal account.
# Check IP via ProxyElite HTTP proxy
curl -x "http://USER:PASS@PROXY_IP:PORT" \
-L "https://api.ipify.org?format=json"
# Login/password can be passed as a separate flag
curl --proxy "http://PROXY_IP:PORT" \
--proxy-user "USER:PASS" \
"https://httpbin.org/ip"
# SOCKS5 with DNS resolution on the proxy side (socks5h)
curl -x "socks5h://USER:PASS@PROXY_IP:PORT" \
-L "https://api.ipify.org?format=json"
# SOCKS5 without local resolution — socks5
curl --socks5 "PROXY_IP:PORT" \
--proxy-user "USER:PASS" \
"https://httpbin.org/ip"
import requests
proxies = {
"http": "http://USER:PASS@PROXY_IP:PORT",
"https": "http://USER:PASS@PROXY_IP:PORT",
# for SOCKS5 you need pip install requests[socks]
"socks5": "socks5h://USER:PASS@PROXY_IP:PORT",
}
r = requests.get("https://api.ipify.org?format=json", proxies=proxies, timeout=10)
print(r.json()) # {'ip': 'PROXY_IP'}
import { request, ProxyAgent } from 'undici';
const agent = new ProxyAgent('http://USER:PASS@PROXY_IP:PORT');
const { statusCode, body } = await request('https://api.ipify.org?format=json', {
dispatcher: agent,
headersTimeout: 10_000,
});
for await (const chunk of body) {
console.log(chunk.toString()); // {"ip":"PROXY_IP"}
}
<?php
$ch = curl_init('https://api.ipify.org?format=json');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_PROXY, 'PROXY_IP:PORT');
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'USER:PASS');
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
// For SOCKS5, uncomment:
// curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
$response = curl_exec($ch);
echo $response; // {"ip":"PROXY_IP"}
curl_close($ch);
IP:port@login:password or IP:port with whitelist authorization.
Works with your software
All IPv4 proxy plans are compatible with any tool that supports HTTP/HTTPS/SOCKS5. Listed below are the most popular ones — 500+ solutions in total.
IP:Port
192.0.2.1:8080
IP:Port:Login:Password
192.0.2.1:8080:user:pass
Format builder
any template with separators
Proxy infrastructure for business
For B2B clients — a dedicated manager and custom terms. Check proxies with the checker, then discuss wholesale prices.
Contract and documents
We sign an official contract. We provide invoices, certificates of completion, and closing documents for accounting.
Flexible payment terms
Deferred payment for regular clients. Bank transfer, payment by invoice, cryptocurrencies (BTC, ETH, USDT), and bank cards.
Dedicated manager
Personal account manager with direct contact via Telegram/Slack. Handles subnet allocation, IP replacement, and API integration.
Corporate orders from $1000
Custom pricing on orders from 5000 IPs. Dedicated /24 subnets, custom geos, 99.9% SLA with downtime compensation.
It is forbidden to use proxies for
A proxy checker is a legitimate tool. But using checked proxies for the following purposes is prohibited.
The full list of restrictions is in the terms of service. Violations result in proxy blocking without refund.
Frequently asked questions about the proxy checker
How to use it, what the results mean, how it differs from other checkers.
A proxy checker is a tool for testing the availability of proxy servers. It determines: whether the proxy is reachable, connection speed, response time (ping), anonymity level (Transparent, Anonymous, Elite), protocol type (HTTP, HTTPS, SOCKS4, SOCKS5), country and provider via RIPE. Without a checker, there is no way to know which proxies in a list are working and which are not.
Paste your list of proxies in IP:PORT or IP:PORT:USER:PASS format into the checker field above. Select the protocol type and timeout. Click "Check". The checker will test up to 200 proxies at once and show the status, speed, anonymity, and geolocation of each. Results can be downloaded in TXT or CSV.
If your proxies are bound to an IP via a whitelist, an external checker will not be able to test them because it runs from a different IP. Test such proxies from a device whose IP is bound in your personal account. For free public proxies the reason is different: 50–70% of addresses in public lists die within 24 hours.
Transparent — the proxy forwards your real IP in the HTTP_X_FORWARDED_FOR header. Anonymous — the proxy hides the IP but tells the website a proxy is in use. Elite — the proxy completely hides both the IP and the fact that a proxy is being used. All ProxyElite proxies operate at the Elite level. Free proxies are often Transparent.
Yes, the checker measures response time (ping) and data transfer speed. However, for an accurate speed test, use a speedtest from the bound device — the checker gives an approximate estimate. ProxyElite proxies: speeds up to 1 Gbit/s, 10 Gbit/s uplink per node.
Up to 200 proxies simultaneously. Paste the list into the checker field — one address per line. Results are shown in real time: status, protocol, country, speed, anonymity. Ready lists can be downloaded in TXT or CSV.
Free proxies, even checked ones, die within hours. Paid ProxyElite proxies: 99.8% uptime, speeds up to 1 Gbit/s, Elite anonymity, IP replacement on ban, 24/7 support. Prices start at $0.065 per IP. 24-hour refund if they don't fit.
Checked your proxies? Buy stable ones
Free proxies die within hours. Paid ProxyElite: 99.8% uptime, Elite anonymity, speeds up to 1 Gbit/s. From $0.065 per IP. 24-hour refund.
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