Zach Leatherman

Use Speedlify to Continuously Measure Site Performance

https://www.zachleat.com/web/speedlify/

If you don't have any budget for Dareboost (or competitors) yet, Speedlify can help you monitor your site's performance for free, and build your performance strategy to justify using even better tools:

how do we ensure that the site maintains good performance and best practices when deploys are happening every day? How do we keep the web site fast? The second step is continuous measurement. This is where Speedlify comes in. It’s an Eleventy-generated web site published as an open source repository to help automate continuous performance measurements.

• older link:
  Inclusively Hiding & Styling Checkboxes and Radio Buttons
• newer link:
  Style Stage and old people of the web

---

Related contents with similar topics

1. • Nicolas Hoizey
   • 21 December 2022
   • Google, Lighthouse, WebPerf
   • 15 reactions
   • permalink

   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
   • 26 October 2022
   • Core Web Vitals, Eleventy, LCP, WebPerf
   • 15 reactions
   • permalink

   If you use #Eleventy and know how to add fetchpriority="high" on your Largest Contenful Paint image, I made a plugin that adds a <link rel="preload"…> for it, even it it's responsive: https://github.com/nhoizey/eleventy-plugin-auto-preload

   Feedback welcome! 🙏

3. • Nicolas Hoizey
   • 14 October 2022
   • CLS, Core Web Vitals, Lighthouse, WebPerf
   • 4 reactions
   • permalink

   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

4. • Nicolas Hoizey
   • 24 December 2021
   • Lighthouse, Speedlify, WebPerf
   • 7 reactions
   • permalink

   Looks like getting 4 💯 #Lighthouse scores in #Speedlify is more difficult than before… 🤔

   Anyway, thanks again @zachleat for this great tool!

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

   

5. • Nicolas Hoizey
   • 9 November 2021
   • Eleventy, image, WebPerf
   • 17 reactions
   • permalink

   Without any visual change, a simple config change in my #Eleventy plugin images-responsiver improved srcset and sizes attributes of images on my photography site and have reduced the homepage weight by half! 🏎