stating the obviousYou can find some proxy detection websites
https://www.blackhatworld.com/seo/p...d-getting-a-fraud-score.1651714/post-18492419What is the best way to check proxy quality?
I forgot what its called but there was a website which can check it if its good and allWhat is the best way to check proxy quality?

I am curious. You've tested against what? What is the criteria you choose to test it or better, what technology you're using that allows you to ?We are adspower, have cooperated with some top proxies with premium residential proxies suppliers, for their excellent Success Rate and Response time as follow:
1. SmartProxy.com: A. Success Rate: 99.68%; Response Time: 0.54s;
2. Brightdata.com A. Success Rate: 98.96%; Response Time: 1.12s;
3. MoMoProxy.com A. Success Rate: 100%; Response Time: 0.51s;
4. oxylabs.io A. Success Rate: 99.82%; Response Time: 0.41s;
View attachment 401671
Criteria to Test Proxy Quality
To determine a proxy’s quality, test the following:
Connectivity (Basic Test)
Does the proxy respond to requests?
Is it reachable or timing out?
Speed & Latency
Measure response time (ping, request-response time).
Compare proxy speed to a direct connection.
Anonymity Level
Transparent Proxy (reveals real IP).
Anonymous Proxy (hides real IP but reveals proxy usage).
Elite Proxy (fully masks real IP).
Geo-location Check
Identify the country and city of the proxy.
Compare advertised location vs actual location.
DNS Leak Test
Ensure the proxy does not leak DNS requests.
Check against known DNS resolvers.
Protocol Support
Does it support HTTP, HTTPS, SOCKS4, SOCKS5?
If HTTPS, is SSL/TLS properly configured?
Reliability & Uptime
Test multiple times to check consistency.
Log failures and timeouts over different intervals.
IP Reputation
Check if the proxy IP is blacklisted (Spamhaus, AbuseIPDB).
Identify if the IP is a data center or residential proxy.
Concurrency & Rate Limits
How many requests can it handle simultaneously?
Does it block or throttle after multiple requests?
Streaming & CAPTCHA Bypass
Can it access services like YouTube, Netflix?
Does it trigger CAPTCHAs on Google, Cloudflare?
Speed (Latency):
Measure the time it takes for the proxy to respond to a request.
Use tools like ping or measure the time taken for an HTTP request to complete.
Anonymity Level:
Check if the proxy reveals the user's IP address or identifies itself as a proxy.
Test headers like HTTP_X_FORWARDED_FOR, HTTP_VIA, and REMOTE_ADDR.
Uptime and Reliability:
Test if the proxy is consistently available and functional over time.
Geolocation:
Verify if the proxy is located in the expected country or region using IP geolocation APIs.
Protocol Support:
Test if the proxy supports HTTP, HTTPS, SOCKS4, or SOCKS5 protocols.
Bandwidth and Throughput:
Measure the data transfer speed and capacity of the proxy.
Blacklist Status:
Check if the proxy IP is blacklisted by popular services or websites.
Security:
Ensure the proxy does not inject malicious scripts or modify requests/responses.