
Charles Proxy
Fiddler
Proxyman.io
HTTP Toolkit
Surge for Mac
mitmproxy
nginx
Weer
DebugBear
GTmetrix
SpeedCurve
PageSpeed Insights
WebPagetest
Request Metrics
Pingdom
SpeedVitals
Monitor the performance of your website and benchmark against the competition. Get alerted in Slack or by email when there's a problem.
Continuously test the speed of your website in a controlled lab environment and get in-depth reports to optimize your site. DebugBear is built on top of Lighthouse, but provides debug data that goes far beyond the basic Lighthouse report.
In addition to the lab data, DebugBear also keeps track of the real-user data collected by Google.
Charles Proxy
DebugBearFiddler - Fiddler is a debugging program for websites.
GTmetrix - GTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
SpeedCurve - Monitor your front-end. Beat the competition
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.
PageSpeed Insights - PageSpeed is addon for ...