lightbulb_outline Blog Post: Fast ads matter (web.dev)

Reduce tag load time

Overview

The time it takes for the ad tag library script to load. This is the interval from page load to tag load.

Recommendations

Ensuring that audits are passing should have a major impact on this metric. In particular, the following audits are likely to affect this time:

More information

The following ad tag library scripts are supported:

Library Script(s)
AdSense

pagead2.googlesyndication.com/pagead/js/adsbygoogle.js

pagead2.googlesyndication.com/pagead/show_ads.js

Google Publisher Tag .../gpt/pubads_impl_<version>.js

Avoiding Common GPT Implementation Mistakes
Tagging best practices to minimize page latency