I test my web with gtmetrix. The result like this :

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I want to improve grade of add expires headers, compress component with gzip and all recommendation which has a bad grade

How can I do it?

Update :

See my update image :

enter image description here

enter image description here

Tell me how to improve only 4 recommendations. That is add expires headers, make fewer http requests, use cookie free domain and reduce dns lookups

  • It literally gives you a list of seven suggestions. That is far too many to describe each in detail here. – Stephen Ostermiller Sep 10 at 22:40
  • @Stephen Ostermiller I update my question – Success Man Sep 10 at 22:47
  • Each of those could be its own question. Some of them are already answered here. We have 143 questions about expires headers already: webmasters.stackexchange.com/search?q=expires%20headers – Stephen Ostermiller Sep 10 at 23:26
  • @Stephen Ostermille Well. Can it be briefly explained or given a reference for each recommendation? So I can find out what I'm supposed to do. Your answer can be useful for the future – Success Man Sep 11 at 0:02