How long to cache images, css, js files?

Question

caching

How long to cache images, css, js files? I mean Cache-Control, Expires in the response header. What to consider when choosing a term?

Answer 1

How long to cache images, css, js files? I mean Cache-Control, Expires in the response header. What to consider when choosing a term?

To select the minimum caching period, you can take into account the recommendations of Google PageSpeed , for example, for the maximum - the features of your particular project and, as a result, the ultimate need.

Answer 2

Static files are usually cached for a maximum amount of time. At least forever. Usually - for 1 year. For CSS, JS files or avatar thumbnails, a file salt is usually used. In the same VK, in the form of a salt, the date of the last modification of the file is used (at least it used to be so).