Work on the main thread should be kept to a minimum
Consider shortening the time it takes to parse, compile, and execute JS. You might find that sending smaller JS payloads helps.
JavaScript that isn’t in use should be reduced
To reduce the number of bytes spent by network activity, reduce unneeded JavaScript and defer loading scripts until they are required.
CSS that isn’t in use should be reduced
Reduce the number of bytes spent by network activity by removing unneeded rules from stylesheets and deferring CSS that isn’t used for above-the-fold content.
Ensure that text is visible while the web font is loading
Use the font-display CSS property to ensure that text is visible to users while web fonts are loading.
Third-party code should be minimized
Third-party code can have a big impact on load times. Limit the number of duplicate third-party providers and load third-party code after your page has finished loading in its entirety.
With an efficient caching policy, serve static assets
Repeat visits to your website can be sped up with a long cache lifetime.
Reduce the time it takes for JavaScript to run
Consider shortening the time it takes to parse, compile, and execute JS. You might find that sending smaller JS payloads helps.
Encode images quickly and efficiently
Images that have been optimised load faster and use less cellular data.
Serve photos in high-definition formats
- Static file caching on the server-side (images, CSS, js).
- Creatively using CSS.
- CSS compression.
- JavaScript is being added to the mix.
- Compression js is a type of js that compresses data.
- CSS and JS are being moved to the bottom of the HTML code page.
- Unnecessary scripts and widgets are disabled.
Conclusion
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