Drupal's core performance options and contrib modules can make a huge difference to performance. How much do each of these contribute to the overall performance? Which one's should you try first? It of course depends on the site and how well the modules are configured.
Earlier this year at the DrupalNYC meetup I tested this with a single site. Does anyone have any similar stats? Google has changed the way it calculates the Lighthouse score so it's always useful to have up-to-date results. Would you be willing to test out different performance modules on your site?
Lighthouse score
Higher is better. An overall frontend performance score, measured from WebPageTest.org, comparing of the following modules or configurations:
- Baseline
- Core performance caching
- Advagg-default
- Advagg-DNS caching-JS Defer
- Lazy loading (using module lazy)
- Lazy + Compress Images
- Fix Cumulative Layout Shift (CLS) issues
Please do not base the effectiveness of a module on these chart - based on a single site. Advagg for example has helped me dramatically improve my Lighthouse score on other sites.
Largest Contentful Paint (LCP)
This is part of Google's Web Vitals. Lower is better.
Comparing the same list as above except for the last.
Would you be willing to test out different performance modules on your site? To keep it simple I chose only a few options. Are there other modules I should add to the list? Just comment below or send me a direct message.
Maybe I should add the core Responsive Images module (not a quick module to configure), AVIF (alpha) or PWA. Modules like Quick Link and my own module FasterWeb are a little more complicated to measure using Webpagetest.org because they change the performance of links rather than the first page load.
Thank you.
David
| Attachment | Size |
|---|---|
| lighthouse.png | 43.35 KB |
| lcp.png | 43.22 KB |
Comments
Combine modules for best results
Great job on looking at the next phase of web perf based off of Googles metrics. The best approach is to combine the tools to get the highest score possible. As you know advagg is complex, because this is a hard problem to solve and different sites have different issues. I'd be interested in seeing if a perfect score or nearly perfect score is possible with the new rules and what it would take to get there.
Thanks Mike - help would be appreciated especially with Advagg
Thanks Mike on an awesome module. I can't even imagine how much of work this has been to create such a comprehensive web perf module.
Scoring well on Lighthouse is a difficult problem because Google keep moving the goalposts. Since Lighthouse 6 (released in 2020) it's now incredibly difficult to get a perfect score - especially when measured on WebpageTest. So would appreciate help with getting advagg configured well and hearing from people who are currently have great scores. Maybe I could setup a few dev sites so I have some more specific questions.
The good news is that even though Lighthouse scores dropped last year, Drupal sites generally have better scores than most other tech stacks.
+1 Thanks David.
+1 Thanks David.