Custom expiration for utag.sync.js and utag.js

[giacomo_ritucci]

Hi, testing our website with https://developers.google.com/speed/pagespeed/insights we found that the utag.sync.js and utag.js have 5 minutes of expiration time. Is it possible to increase the Expires value for scripts served by Tealium? If possible, what is the maximum recommended value?

[craig_rouse · Accepted solution]

Hi Giacomo, No, it's not possible to increase this value. It's set as 5 minutes to guarantee that the latest utag files are always served when you do a publish. Most of the time, the utag files will be served from cache anyway, and if the file has not changed, it will not be re-downloaded. The 5 minute expiration is simply a check to see if the file has changed, and it will only be re-downloaded if this is the case. Hope this helps to explain things. Craig.