Network Data Labs (@networkdatalabs)

Cloudflare Workers: Add ASN, Hosting and Tor Checks Beyond request.cf

Use request.cf as the free baseline, then add confidence, hosting, Tor exit, known VPN network and privacy relay signals, with caching and fail-open. What request.cf gives you, and what it doesn’t Eve

6d ago · 5 min readnetworkdatalabs.hashnode.dev

Flag Risky Signups in Python by IP: Tor, Hosting and Known VPN Networks

A FastAPI/Flask recipe that turns IP traits into an allow / verify / review decision, without locking out real users. Why hard-blocking VPN users backfires Plenty of legitimate people sign up from a V

Oct 15 · 6 min readnetworkdatalabs.hashnode.dev

How to Get a Visitor’s IP and Country in Express (Behind Proxies and CDNs)

Fix req.ip behind Nginx, load balancers and CDNs, skip the spoofable X-Forwarded-For pattern, and add a cached, fail-open country lookup with an honest accuracy radius. Why req.ip shows your proxy’s I

Oct 8 · 7 min readnetworkdatalabs.hashnode.dev

Network Data Labs

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Cloudflare Workers: Add ASN, Hosting and Tor Checks Beyond request.cf

Flag Risky Signups in Python by IP: Tor, Hosting and Known VPN Networks

How to Get a Visitor’s IP and Country in Express (Behind Proxies and CDNs)

Network Data Labs

About

Available for

Network Data Labs's blogs

Cloudflare Workers: Add ASN, Hosting and Tor Checks Beyond request.cf

Flag Risky Signups in Python by IP: Tor, Hosting and Known VPN Networks

How to Get a Visitor’s IP and Country in Express (Behind Proxies and CDNs)

Network Data Labs

About

Available for

Network Data Labs's blogs

Cloudflare Workers: Add ASN, Hosting and Tor Checks Beyond request.cf

Flag Risky Signups in Python by IP: Tor, Hosting and Known VPN Networks

How to Get a Visitor’s IP and Country in Express (Behind Proxies and CDNs)

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Network Data Labs

About

Available for

Network Data Labs's blogs

Cloudflare Workers: Add ASN, Hosting and Tor Checks Beyond request.cf

Flag Risky Signups in Python by IP: Tor, Hosting and Known VPN Networks

How to Get a Visitor’s IP and Country in Express (Behind Proxies and CDNs)