KeyCDN

FEBRUARY 4, 2021

ISPs do cache DNS however which means if your first provider goes down it will still try to query the first DNS server for a period of time before querying for the second one. You can test the DNS lookup time and TTFB with a website speed test tool. DNS speed comparison report Who offers the best free DNS?

Cache 134

Cache Website Internet Internet 134

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. Note that new CrUX datasets are released on the second Tuesday of each month.

Performance 145

Performance Cache Media 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 ). Clean coding practices.

Website 110

Website Speed Mobile Design 110

MachMetrics

FEBRUARY 22, 2019

This tool is excellent for the sake of comparison, meaning I can effectively use to see whether the page speed optimizations I’ve made are working, compare my e-commerce site against my competitors, etc. If you are using WordPress, many caching plugins offer this feature at the check of a box. Number of Resources.

Speed 56

Speed Metrics Website Cache 56

Smashing Magazine

JANUARY 7, 2019

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik), Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing).

Performance 104

Performance Cache Network Metrics 104

Smashing Magazine

JANUARY 6, 2020

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik and detailed guide by Rick Viscomi) or Treo Sites , a RUM monitoring tool that is powered by Chrome UX Report. Treo Sites provides competitive analysis based on real-world data.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

SEPTEMBER 6, 2021

This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. Upon receipt of a valid Alt-Svc header indicating HTTP/3 support, the browser will cache this and try to set up a QUIC connection from then on.

Network 105

Network Servers Cache Traffic 105