Want to check if gzip compression is working on all files you want on your website?

Link here.

Tricks to optimise web fonts performance.

Link here.

Monitor Jquery code

Link ere.

This helpd to add a script to monitor the performance of  the existing javascript code.

A book about website speed optimisations

Link here.

A last few chapters are still yet to be completed when I'm writing this post. I'm eagerly waiting for them to be over n i can read them.
But it's worth a read !
a whole insight on how to improve website performance/speed.