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Test a website's performance
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Traceroute
Test Configuration:
Mobile - Slow 3G
Mobile - Regular 3G
Mobile - 4G
Desktop
Include Repeat View:
(Loads the page, closes the browser and then loads the page again)
Run Lighthouse Audit:
Recent Industry Blog Posts
Recent Discussions
WebAudio Deep Note, part 5: gain node
CPDoS Attacks: Why Global Monitoring Is Essential for Web Performance Management
What’s new with Workers KV?
Serverlist October: GitHub Actions, Deployment Best Practices, and more
The Project Jengo Saga: How Cloudflare Stood up to a Patent Troll – and Won!
more...
WebAudio Deep Note, part 5: nodes
A long time coming...
Going Keyless Everywhere
Delegated Credentials for TLS
Announcing cfnts: Cloudflare's implementation of NTS in Rust
Black Friday 2019: What Can Go Wrong in Your Website and How to Prevent It
Google Lighthouse vs Rigor
The TLS Post-Quantum Experiment
DNS Encryption Explained
New! User Happiness metric, CI plugin, and an inspiring third-party success story
50 Years of The Internet. Work in Progress to a Better Internet
Fifty Years Ago
Supporting the latest version of the Privacy Pass Protocol
Tales from the Crypt(o team)
Public keys are not enough for SSH security
How To Enhance Your Microservices At The Edge?
Cloudflare response to CPDoS exploits
Who DDoS'd Austin?
Understanding APIs: What They Are and Why They Matter
WebAudio Deep Note, part 4: multiple sounds
SpaceX Spending $10 Billion to Make the Internet 20ms Faster
Webpagetest local instance.
CDN not Detected
Last Painted Hero's impact on SEO
How to optimize JS?
WPT Speed Index versus LH Speed Index
more...
Images loading in slowly on new server
Unable to authenticate
json output change -- missing lighthouse KPI's
Visual comparison of same page
Load Time - is its definition changed or calculated differently?
How to find initcwnd from the test result ?
Help interpreting waterfall diagram
Is Falkenstein due for a reboot?
First View: Test Error: net::ERR_NAME_NOT_RESOLVED
what is the metric called "page is interactive"
No longer able to run webpagetest against our site after applying Akamai enhancements
Some old test URLs not working?
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