Smashing Magazine

JANUARY 6, 2020

If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled 3G network (e.g. To make the performance impact more visible, you could even introduce 2G Tuesdays or set up a throttled 3G/4G network in your office for faster testing. 300ms RTT, 1.6 Mbps down, 0.8

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled network (e.g. To make the performance impact more visible, you could even introduce 2G Tuesdays or set up a throttled 3G network in your office for faster testing. 150ms RTT, 1.5 Mbps down, 0.7

Performance 104

Performance Cache Metrics Network 104

CSS - Tricks

OCTOBER 10, 2019

If you are building an SPA and want to measure its performance, you could rely on end-to-end testing tools like Selenium , Cypress or Puppeteer. However, I have found that none of these has the amount of performance-related information and easy-to-use tooling that WebPageTest offers. Your performance audit is ready.

Performance Testing 51

Performance Testing Testing Performance Open Source 51

Smashing Magazine

JANUARY 11, 2021

Networking, HTTP/2, HTTP/3 OCSP stapling, EV/DV certificates, packaging, IPv6, QUIC, HTTP/3. Testing And Monitoring Auditing workflow, proxy browsers, 404 page, GDPR cookie consent prompts, performance diagnostics CSS, accessibility. 300ms RTT, 1.6 Mbps down, 0.8 Mbps up) with a throttled CPU (5× slowdown).

Performance 145

Performance Cache Media Metrics 145