anonymity tes

This article provides a complete proxy detection solution, covering core links such as connection verification, anonymity testing, and performance evaluation, to help users quickly diagnose proxy configuration problems and optimize network access quality.1. Basic connectivity verification1.1 IP address and geographic location verificationcurl ifconfig.me # Get the real IP when the proxy is not enabledcurl --proxy http://user:pass@host:port ifconfig.me # Verify the export IP after enabling the proxyBy comparing the two results, you can determine whether the proxy is effective. Using IP2world's static ISP proxy can ensure the accuracy of geolocation. You need to verify whether the IP region is consistent with your expectations.1.2 Port connectivity testtelnet proxy_host 8080 # Check if the TCP port is opennc -zvw3 proxy_host 443 # Test HTTPS proxy connectivityIf the connection times out, check the firewall rules or proxy service status. Enterprise-level proxies usually provide a list of alternate ports (such as 8080, 3128, 1080).1.3 Protocol compatibility verificationHTTP proxy: test web access directly through browser settingsSOCKS5 proxy: Use curl -x socks5://host:port to test file downloadTransparent proxy: need to check gateway routing table and iptables rules2. Anonymity and privacy security testing2.1 Request Header Feature AnalysisVisit IPLeak.net to detect the following information leaks:X-Forwarded-For header reveals real IPWebRTC STUN request through proxyThe browser time zone and language settings are consistent with the proxy region2.2 DNS Leak Detectionnslookup example.com # Observe whether the DNS server IP matches the proxy networkPerform extended testing with DNSLeakTest to ensure that all queries are routed through the proxy chain. It is recommended to configure a system-wide DNS override or use encrypted DNS (DoH/DoT).2.3 Proxy level verificationUse the Traceroute tool to detect the traffic path:traceroute -T -p 443 target.com # Display the intermediate nodes passedA multi-layer proxy should show multiple jump nodes, while a single-layer proxy should directly reach the exit IP.3. Performance and stability evaluation3.1 Latency and Bandwidth Test# Measure TCP handshake delaytime curl -o /dev/null -s -w 'Connect: %{time_connect}\n' https://example.com# Download speed test (using 100MB test file)wget -O /dev/null --proxy=on http://speedtest.tele2.net/100MB.zipThe delay of enterprise-level proxy should be less than 200ms, and the download speed should reach more than 80% of the bandwidth commitment value.3.2 Concurrent connection capability testUse Apache Bench to simulate high concurrency scenarios:ab -n 1000 -c 50 -X proxy_host:port http://test.com/Observing the error rate and response time distribution, a high-quality proxy should maintain a 99.9% success rate with no significant performance degradation.3.3 Long connection stability monitoring# Python continuous connection test scriptimport requestsproxies = {"http": "http://host:port", "https": "http://host:port"}for _ in range(1440): # 24-hour monitoringtry:requests.get("https://api.ipify.org", proxies=proxies, timeout=10)except Exception as e:log_error(f"Proxy interrupt: {str(e)}")4. Advanced diagnostics and troubleshooting4.1 Protocol error log analysisCommon error codes and solutions:407 Proxy Authentication Required: Check the account password and authentication method (Basic/Digest)502 Bad Gateway: The proxy server backend service is abnormal, you need to contact the supplierCONNECT method rejected: Confirm whether the proxy supports HTTPS tunneling4.2 Intelligent routing detectionVerify the proxy routing optimization effect through test nodes in different geographical locations. Use IP2world's dynamic residential proxy to automatically match the optimal exit node, and verify its BGP routing table update frequency.4.3 Compliance ReviewCheck if the proxy service provider’s privacy policy complies with GDPR/CCPAVerify that the IP address is not on a public blacklist (such as Spamhaus)Ensure proxy usage does not violate the target website’s terms of serviceAs a professional proxy IP service provider, IP2world provides a variety of high-quality proxy IP products, including dynamic residential proxy, static ISP proxy, exclusive data center proxy, S5 proxy and unlimited servers, suitable for a variety of application scenarios. If you are looking for a reliable proxy IP service, welcome to visit IP2world official website for more details.