Browser Fingerprint: What Timezone, Language and IP Mismatches Reveal
Sites read your timezone, language and fonts, which often clash with your proxy exit IP. See what each mismatch reveals and how to check it with cdnping /ip.
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IP & privacy
「IP & privacy」分类下的文章。
Datacenter IP vs Residential IP: 5 Signals Sites Use to Tell Them Apart
How datacenter and residential IPs differ, and the five signals sites use for IDC IP detection (ASN, RDAP netname, reverse DNS, reputation, latency), with self-check commands.
DNS over HTTPS Setup Guide for Browsers, Windows and macOS
What DNS over HTTPS does and doesn't protect, how to enable DoH in Chrome, Edge, Firefox, Windows 11 and macOS, and how to confirm it works with the cdnping /ip DNS leak test.
How to Fix a WebRTC Leak in Chrome, Firefox and Safari
A WebRTC leak can expose your real IP. Per-browser fixes: Firefox about:config, Chrome's extension and WebRtcIPHandling policy, Safari settings, side effects, and a retest on /ip.
How Chinese Sites See Your Real IP: Split-Tunnel Detection Explained
How split-tunnel detection works: Chinese CDNs return your client IP, CORS decides if a page can read it, and what the three results mean. Test it on cdnping.
IP Purity Score Explained: 14 Reputation Sources and Weights
cdnping's IP purity score is 100 minus a risk value. See what each of the 14 reputation sources checks, its weight, why false positives happen, and why checkers disagree.