Smashing Magazine

MAY 9, 2022

WebPageTest is one of the few web performance testing tools that actually tests a reload of the page using a primed HTTP Cache — most of the other tools just flag if your HTTP resources are not explicitly set to be cached. Back/Forward Cache Testing Tool. The HTTP Cache is a disk cache.

Cache 91

Cache Games Performance Website 91

Smashing Magazine

APRIL 19, 2021

Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. Google uses anonymized data from Chrome users to feedback metrics and makes these available in the Chrome User Experience Report (CrUX).

Google 140

Google Metrics Mobile Analytics 140

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. To complete the picture, we’d usually look out for useful metrics among all of these groups.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Finally, we’ll see which tools you can use to evaluate the performance impact of the new protocols (that’s the almost impossible part, at least for now). Servers and Networks. Network Configuration.

Network 105

Network Servers Cache Traffic 105

Smashing Magazine

JANUARY 7, 2019

Time to Interactive (TTI) The point at which layout has stabilized, key webfonts are visible, and the main thread is available enough to handle user input — basically the time mark when a user can interact with the UI. If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled network (e.g.

Performance 104

Performance Cache Network Metrics 104

Smashing Magazine

JANUARY 6, 2020

Usually, the most specific and relevant ones are: Time to Interactive (TTI) The point at which layout has stabilized, key webfonts are visible, and the main thread is available enough to handle user input — basically the time mark when a user can interact with the UI. 300ms RTT, 1.6 Mbps down, 0.8

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JUNE 26, 2019

One tool that’s particularly helpful is called Lighthouse. Instead, I suggest that web designers use another Google testing tool called Test My Site. Test My Site is a mobile page speed testing tool from Think with Google. Source: Test My Site ) ( Large preview ). seconds too long.

Website 110

Website Speed Mobile Design 110