Hi Lucy,
Thanks for contacting us about expires headers. GTmetrix reports your site as needing ‘Expires headers’ because you do not have them present or set correctly in your htaccess file – if you click on each individual reporting item in GTmetrix you will see it offers a solution or information on solving for each item.
Add expires headers solution can be found here https://gtmetrix.com/add-expires-headers.html
GTmetrix will also report any JS or CSS on any page where the expires headers have not been set – you’re seeing the theme files and BuddyPress files because they’re being called on page load.
Thanks,
Kieran
Hi there!!! Help others from the community and mark any reply as solution if it solved your question. Mark as a solution