To improve performance of WordPress site speed you need a cache plugin. LiteSpeed Cache plugin with 2+ million installations and  1800+ 5 star ratings is one among the best. To know the truth we tested a site with no ads. This will give a better understanding of LSC and can improve the site UX metrics and speed.

Website and Test Page

  1. The site has 14 active plugins.
  2. The test page had 10 images.
  3. AMP plugin installed.
  4. RankMath Pro and kk Star Ratings installed.
  5. DreamHost Shared Hosting plan used.

Without LiteSpeed Cache and QUIC.cloud – Speed and Core Web Vitals

Initially we tested the bare site. You can see the Microsoft Edge results of no cache HIT. Microsoft Edge was used to test whether LiteSpeed and QUIC.cloud were enabled?

Browser Page Results with AMP

  1. 33 requests
  2. 25.0 kB transferred
  3. 999 KB resources
  4. Finish: 5.33s
  5. DOMContentLoaded: 3.42s
  6. load time: 4.31s

For some reason, AMP pages were slow instead of being quick on the performance test. It could be due to the AMP resources being loaded from Google’s CDN. A mobile responsive site may have fast and better results. Though some plugins were suppressed, it could be due to other resource intensive plugins.

JavaScript Details

  • 6 / 33 requests
  • transferred:  0 kB / 25.0 kB
  • 429 kB / 999 kB resources
  • DOMContentLoaded: 3.42 s
  • Load: 4.31 s

CSS Details

  • requests 1/33
  • transferred 0/25 kB
  • resources: 31.0 kB/999 kB

Image

  • 15/33 requests
  • 127 B/25.0 kB transferred
  • 6.1 kB/ 999 kB resources

Developer Tools Results with Desktop Version

We tested the non-AMP without LSC plugin and QUIC.cloud using the Chrome browser developer tools. These were the results of the resources loaded.

  1. 35 requests
  2. 57.8 kB transferred
  3. 652 kB resources
  4. Finish: 5.14 s
  5. DOMContentLoaded: 3.42 s
  6. Load: 5.04 s

JavaScript Details

  • 14 / 35 requests
  • 37.5 kB / 57.8 kB transferred
  • 383 kB / 652 kB resources

CSS Details

  • 12 / 35 requests
  • 0 B / 57.8 kB transferred
  • 0 B / 57.8 kB transferred

Image

  • 4 / 35 requests
  • 55 B / 57.8 kB transferred
  • 5.4 kB / 652 kB resources

Without LiteSpeed Cache and QUIC.cloud – Core Web Vitals and Speed using GTMetrix Test

Desktop Pages

  1. TTFB – 1.4s
  2. FCP – 1.9s
  3. LCP – 1.9s
  4. TBT – 0ms
  5. CLS – 0
  6. Fully Loaded Time – 2.8s
  7. GTMetrix Grade – B

AMP Pages

  1. TTFB – 2.4s
  2. FCP – 2.7s
  3. LCP – 2.7s
  4. TBT – 14ms
  5. CLS – 0
  6. Fully Loaded Time – 3.1s
  7. GTMetrix Grade – C

Without LiteSpeed Cache and QUIC.cloud – PageSpeed Insights Test

Desktop

AMP

Page Performance With LiteSpeed Cache + QUIC.cloud

The ideal LiteSpeed Cache plugin settings and QUIC.cloud settings were used. You can read about those in the above articles.

Desktop

  1. 28 requests
  2. 57.1 kB transferred
  3. 817 kB resources
  4. Finish: 1.46 s
  5. DOMContentLoaded: 749 ms
  6. Load: 1.40 s

AMP

  1. 58 requests
  2. 62.0 kB transferred
  3. 1.5 MB resources
  4. Finish: 1.98 s
  5. DOMContentLoaded: 639 ms
  6. Load: 1.38 s

Page Performance with LiteSpeed Cache and QUIC.cloud – UX and Speed

Desktop

  1. TTFB – 92ms
  2. FCP – 283ms
  3. LCP – 282ms
  4. TBT – 0ms
  5. CLS – 0
  6. Fully Loaded Time – 362ms
  7. GTMetrix Grade – A

AMP

  1. TTFB – 98ms
  2. FCP – 532ms
  3. LCP – 532ms
  4. TBT – 3ms
  5. CLS – 0
  6. Fully Loaded Time – 973ms
  7. GTMetrix Grade – A

Speed and Core Web Vitals Performance with LightSpeed Cache and QUIC.cloud

Desktop

AMP

Conclusion

See best performance results with LiteSpeed Cache plugin and QUIC.cloud

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