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1Anon BlackHat Board / CPA, Traffic Arbitrage & Cloaking / 🛡️ Reverse DNS & ASN-Based Server Cloaking: Serving Clean HTML to Googlebot & Heavy CPA Landers to Users
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CPA, Traffic Arbitrage & Cloaking VERIFIED METHOD Posted on Oct 03, 2026 at 02:50 PM
2 replies 997 views

🛡️ Reverse DNS & ASN-Based Server Cloaking: Serving Clean HTML to Googlebot & Heavy CPA Landers to Users

LO
locker_architect OP / ELITE MEMBER
Never rely solely on User-Agent strings for cloaking—Googlebot crawlers routinely randomize User-Agents and use Chrome headless rendering instances. Our bulletproof dual-layer cloaking pipeline in Nginx + Lua: 1. Reverse DNS Verification: Perform `gethostbyaddr` on client IP. If reverse domain ends in `.googlebot.com` or `.google.com`, immediately perform forward DNS `gethostbyname`. If resolved IP matches incoming IP, it is 100% verified genuine Googlebot. 2. ASN Filter: Drop or bypass all IPs belonging to AS15169 (Google LLC), AS8075 (Microsoft), and known hosting datacenters. 3. Client-Side WebGL Fingerprint Probe: If non-bot, execute an obfuscated inline JS canvas challenge. If GPU vendor is SwiftShader or llvmpipe (virtualized Google crawler headless), serve the clean whitehat article. If NVIDIA/Apple/Intel hardware detected, transition to the high-converting CPA landing page.
Community Replies & Benchmarks (2) ✓ Peer-Reviewed Configurations
TR
TrafficNinja ✓ TOP VERIFIED REPLY
02:40 PM

The WebGL GPU check is mandatory now. Googlebot's Web Rendering Service (WRS) almost universally returns SwiftShader or Google SwiftShader in gl.getParameter(gl.RENDERER). Easy instant flag.

03:15 PM

Saved to my snippets vault. Do you run the reverse DNS in real-time or cache verification results in Redis with a 24-hour TTL? In our setup Redis cache cut latency from 45ms to 2ms.

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