Emerson Loustau

Big picture performance analysis using Lighthouse Parade

https://cloudfour.com/thinks/big-picture-performance-analysis-using-lighthouse-parade/

Here is a great new open source tool provided by the Cloud Four team! 👍

Lighthouse Parade is a Node.js command line tool that crawls a domain and gathers lighthouse performance data for every page. With a single command, the tool will crawl an entire site, run a Lighthouse report for each page, and then output a spreadsheet with the aggregated data.

I will however welcome an option to limit the crawling, because I already have more than 2300 pages on my personal site, and many more on most clients sites… 😅

• older link:
  Understanding Filters, Shortcodes and Data in 11ty
• newer link:
  2020 Remixed ! (Year review by Cee-Roo)

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1. • Nicolas Hoizey
   • 21 December 2022
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   • 15 reactions
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   Same page tested on PageSpeed Insights over a few hours the same day, without anything modified, and the desktop scores vary from 19 to 59… 🤷‍♂️

   A lot of businesses rely on this crap to now if their site is "fast" enough for Google SEO! 😭

   

2. • Nicolas Hoizey
   • 14 October 2022
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   width and height attributes on <img> help prevent layout shifts (CLS). Values should be unitless integers.

   But #Lighthouse sees 100% as 100, thanks parseInt()…

   Do you think it should be improved?

   -> https://github.com/GoogleChrome/lighthouse/issues/14449

3. • Nicolas Hoizey
   • 24 December 2021
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   Looks like getting 4 💯 #Lighthouse scores in #Speedlify is more difficult than before… 🤔

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   https://perf.nicolas-hoizey.com/nicolas-hoizey.photo/

   

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   • Nicolas Hoizey
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   I agree with Zach that the Lighthouse scores we see - shared mostly on Twitter - should be taken with a grain of salt, as they are often shared without any mention of the test conditions.

5. • Nicolas Hoizey
   • 24 September 2020
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   Looks like #Lighthouse now suggests me to preconnect to the Google Analytics domain…

   

   …which I already do! 🤔

   

   Anything wrong with my HTTP header?