Signifyd - Signifyd is a SaaS-based, enterprise-grade fraud technology solution for e-commerce stores.
Fiddler - Fiddler is a debugging program for websites.
MaxMind - Determine the geographical location of website visitors based on the IP addresses for fraud detection, content localization, geo-targeting.
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Kount - eCommerce fraud detection & prevention
HTTP Toolkit - Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.