Sitespeed.io
Warden Online
WebPagetest
Datadog
Google Lighthouse
NewRelic
UptimeRobot
GTmetrix
DebugBear
GTmetrix
SpeedCurve
Wattspeed
Relicx
Proxyman.io
HTTP Toolkit
Pingdom
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.
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Warden Online - Warden.Online › Website Uptime & Speed Monitoring
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.
WebPagetest - Run a free website speed test from multiple locations around the globe using real browsers...
SpeedCurve - Monitor your front-end. Beat the competition
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Wattspeed - Wattspeed helps you measure and monitor the performance of your website.