Can we exclude the user-agent “Chrome-Lighthouse” from crawlers and thereby show Lighthouse the real application view? https://github.com/discourse/discourse/pull/15592 Application-view performance This enables Lightouse in Chrome DevTools and PageSpeed Insights to measure the performance of Discourse like viewed by an user. [lighthouse-performance-application-view] Crawler-view performance Until now Lighthouse measured the performance for an user-device which is rendering the crawler-layout - this never happens in reality. [lighthouse-performance-crawler-view]

When they run those lighthose performance tests on a recent iPhone model (even an iPhone 8 or later), I am open to this. Right now android performance is 3x (or more) slower than iPhone unfortunately. :pensive_face: Check your device at Speedometer 2.0 to see what I mean – this measures JavaScript performance in the browser: [image] Until they run lighthouse on an iPhone (any model) for context, I am absolutely opposed to any change here. When they do, I will happily accept the PR, with gusto.

For their metrics they are already collecting “real-user experience data” (CrUX dataset) from ~200 EUR/USD Android phones running Chrome - and this data gets into the Core Web Vitals report on Google Search Console. How about putting this behind a flag or enable it for development environments only?

[תמונה] Falco: run lighthouse with a custom user agent For this solution to measure the intended Discourse view: mobile-view: add ?mobile_view=1 to the url desktop-view: add ?mobile_view=0 to the url This setting is remembered in LocalStorage. So reset it once if necessary: Add ?mobile_view=auto to the url. app/assets/javascripts/discourse/app/lib/mobile.js 1472e47aa if (window.location.search.match(/mobile_view=1/)) { localStorage.mobileView = true; } if (window.location.search.match(/mobile_view=0/)) { localStorage.mobileView = false; } if (window.location.search.match(/mobile_view=auto/)) { localStorage.removeItem("mobileView"); } if (localStorage.mobileView) { let savedValue = localStorage.mobileView === "true"; if (savedValue !== this.mobileView) { this.reloadPage(savedValue); } }

נתוני ביצועים אמיתיים עבור Lighthouse

מפתח

Falco (Falco) 15 בינואר,‏ 2022,‏ 12:08am 4

You can run lighthouse with a custom user agent from your machine to get the SPA perf numbers.

נושא		תגובות	צפיות
Android mobile device detection is too strict Bug	22	6162	16 במרץ,‏ 2016
The State of JavaScript on Android in 2015 is... poor General	285	153645	18 בדצמבר,‏ 2022
Discourse not loading on legacy browsers Bug	50	6512	13 במאי,‏ 2022
Google Search Console/Schema Markup test tool "Google Rich Results Test": mobile-view instead of crawler-view Bug	3	923	26 במרץ,‏ 2024
Broken crawler view when you disable Javascript Feature	1	722	9 במאי,‏ 2022

נתוני ביצועים אמיתיים עבור Lighthouse

נושאים קשורים