Run a check
- Open the proxy checker.
- Paste one proxy per line, or import a text file with one address per line. You can submit up to 100 lines; exact duplicates are removed.
- Choose the default protocol for addresses without a scheme. A full proxy URL overrides that choice.
- Choose a timeout of 2, 5, 8 or 15 seconds.
- Select Check proxies. Pause, resume or stop the queue as needed.
PROXY_HOST:PROXY_PORT
PROXY_HOST:PROXY_PORT:PROXY_USERNAME:PROXY_PASSWORD
https://PROXY_USERNAME:PROXY_PASSWORD@PROXY_HOST:PROXY_PORT
socks5://PROXY_HOST:PROXY_PORTReplace every placeholder with a real public proxy. Private, loopback and internal addresses are blocked. Email-service ports are not supported.
Check a specific target
Expand Check a target website and enter an HTTPS URL on port 443. Do not include credentials or a fragment. The checker verifies the exit IP with Cloudflare first, then requests your target through the same configured proxy. Redirects are not followed.
A rotating gateway can choose a different exit IP for the second request. The displayed IP and country belong to the first verification request.
Read the results
| Result | Meaning |
|---|---|
| Working | The proxy returned a verified public exit IP. It does not mean the target accepted the request. |
| Target status | The target’s HTTP response, if requested. A 301 or 302 is a redirect; a 403 or 429 can appear even when the proxy is Working. |
| Response time | Elapsed check time, including exit-IP verification and the optional target request. |
| Failed | The check could not complete. Inspect its error before retrying. |
Limits and source IP
The free checker allows up to 30 checks per minute and 300 per day per network, subject to shared service capacity. A 429 response pauses the queue; wait before trying again. Tests use your proxy’s traffic allowance.
Requests originate from Crawlhub’s servers, not your device. A proxy that only allows your device’s public IP may reject the checker. Do not weaken your allowlist to get a green result; test locally instead.
Credentials and exports
Proxy addresses and any credentials are sent over HTTPS to the checker to make the test. They are not saved to your account. Results stay in page memory and are cleared when you reload.
CSV result exports omit proxy credentials. Copy working proxies copies your original input, including credentials if you supplied them. Treat that clipboard content as a secret.