Increase the Performance rate of the template on GTMetrix

[sylhare]

Edit April 2019:

Original issue:
So there is GTMetrix which is a website that rates the rapidity of your website online. The template is actually quoted at B(82%)

It seems there are a couple of things that can be done to increase the performance, so we should address it here:

• Optimize images (rated F) Optimizing images #10 Reducing size of Jpeg images #12
• Leverage browser caching (rated F) Enhancement: GTMETRIX Add Expires headers #8
• Serve scaled images (rated C) Serve scale images #13
• Defer parsing of JavaScript (rated C)
• Add Expires headers (rated F) Enhancement: GTMETRIX Add Expires headers #8

[sylhare]

For the last one, to defer javascript parsing, since we're using librairies (JQuery, Bootstrap, Katex, Jekyll search) it is hard to combine them all in one. However for the other in template JS files (Navbar.js and Katex_init.js) we can associate them into a main.min.js (minified version).

[sylhare]

[sylhare]

Has been improved with #143