On: Google Pagespeed Test Fails Itself on Mobile

[wldcordeiro]

The suggestion says to cache the js file for the analytics tracker, not to remove it.

[Fuffidish → wldcordeiro]

Good luck setting caching headers on an external resource.

[ZeroGravitas → wldcordeiro]

It's hosted by Google, so they control the cache time.

[eli → ZeroGravitas]

You actually can host the Google Analytics JS file locally, though I'm not sure it's an officially supported configuration.

[danieltillett → eli]

Do you have any resources on doing this?

[rgbrenner → danieltillett]

it's definitely not a supported config: https://support.google.com/analytics/answer/1032389?hl=en

But you can download it, and host it locally. Just update it periodically. As you can see from the changelog, it only changes every few months: https://developers.google.com/analytics/devguides/collection...

Google actually takes a few days to deploy updates to all of their servers. So a daily script to update it on your server would be fine.

[danieltillett → rgbrenner]

Thanks for this.

[codedokode → danieltillett]

You could probably proxy a file through your own server and add any headers you like. But in that case browser cannot use a version of a script cached at other sites.

[stavros → ZeroGravitas]

Why do they only cache it for two hours? Do they want changes to be that quick to take?

[latch → wldcordeiro]

Are you being funny? If not, how do you suggest they do that?