How Proxy Detection Works
A practical explanation of the network, ASN, hosting, Tor, DNS, browser, and reputation signals used to classify proxy-like connections.
Learning center
IP Privacy Diagnostics Learning Center
Explore practical, security-focused guides that explain how websites interpret public connection signals. The library is designed for legitimate privacy checks, troubleshooting, and safer browsing.
How VPN Detection Works
Learn how websites identify VPN endpoints using network ownership, reputation, shared usage patterns, DNS behavior, and account-security context.
Proxy vs VPN vs Tor
Compare proxies, VPNs, and Tor by traffic coverage, encryption, trust model, speed, privacy tradeoffs, and detection behavior.
Residential vs Datacenter IP Addresses
Understand how residential, mobile, corporate, and datacenter IP ranges differ and why classification affects trust and location results.
How Websites Detect VPNs
A security-focused explanation of why sites classify VPN connections and how account history, IP reputation, and shared gateways affect results.
How WebRTC Leaks Reveal IP Addresses
Understand WebRTC connectivity checks, local candidates, public candidates, relay candidates, and what modern browsers expose.
DNS Leaks Explained
Learn what DNS leaks are, why they happen with proxies and VPNs, and how DNS resolver behavior affects privacy diagnostics.
IPv6 Leaks and VPN Testing
Understand why IPv6 can reveal a different route than IPv4 and how to diagnose IPv6 behavior with VPNs, proxies, and mobile networks.
How to Test Your VPN Safely
A step-by-step checklist for checking public IP, DNS, IPv6, WebRTC, timezone, and account-security prompts after enabling a VPN.
False Positives in Proxy Detection
Why normal home, mobile, business, school, hotel, and corporate networks can sometimes be classified as proxies or high-risk connections.
Understanding ASN and Network Ownership
Learn what an autonomous system number is, why ASN ownership matters, and how it helps explain IP reputation and location results.
IP Reputation Explained
Understand abuse reports, blocklists, shared gateways, scoring systems, and why reputation should be interpreted with caution.
How IP Geolocation Works
Why IP geolocation estimates country, region, city, and timezone—and why city-level results are often approximate.
Browser Fingerprinting and IP Signals
Understand how browser attributes, device settings, cookies, and IP metadata can combine into a stronger recognition signal.
IP Privacy Checklist
A practical checklist for reviewing IP address, DNS, IPv6, WebRTC, browser settings, account safety, and public Wi-Fi risk.
Public Wi-Fi Security for Travelers and Remote Workers
Practical guidance for using hotel, airport, café, and conference Wi-Fi while protecting accounts and understanding IP changes.
Connection Troubleshooting Checklist
Diagnose missed proxy detection, wrong location, network errors, DNS mismatches, browser extension conflicts, and inconsistent VPN results.
Mobile Network Detection
How cellular carriers, CGNAT, mobile gateways, roaming, and private relay features affect IP lookup and proxy classification.
Corporate VPN Detection
Why workplace VPNs, secure web gateways, ZTNA products, and remote-access networks can look different from consumer privacy VPNs.
Understanding Reverse DNS
What PTR records and reverse DNS hostnames can reveal about providers, gateways, cloud regions, and connection classification.
Tor Exit Nodes Explained
Understand how Tor exits work, why they are publicly listed, and why sites often apply extra verification to Tor traffic.
Privacy Relays and Secure Browsing Features
How browser privacy relays, secure DNS, network protection features, and anti-tracking systems can change visible connection signals.
Safe Use of IP Checkers
How to interpret IP checker results safely, avoid overconfidence, protect privacy, and report corrections without exposing sensitive data.