warningNotice: Due to limited usage, Publisher Ads Audits will be turned down on June 1, 2026. For help debugging GPT tags, we recommend using the Google Publisher Console and following our GPT best practices. For page performance guidance, use Lighthouse and web.dev resources.
Reduce tag load time
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Page Summary
This metric measures the time it takes for the ad tag library script to load from the start of page load.
Improving other specific ad script audits, such as avoiding render-blocking resources or loading tags asynchronously, will positively impact this metric.
The goal is to reduce the script load time, and this metric helps track improvement in that area.
Common ad tag libraries included in this measurement are AdSense and Google Publisher Tag.
Overview
The time it takes for the ad tag library script to load. This is the interval
from page load to tag load.
Recommendations
This metric is not indicative of a specific issue. It should be used to help
identify areas for improvement and track that improvement over time.
The goal here is to reduce the time it takes for the ad tag library script to
load. Ensuring that other, more specific audits are passing should have a major
impact on this metric. In particular, the following audits are likely to affect
this time:
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-06-26 UTC."],[],["The content focuses on the ad tag library script load time, measured from page load to tag load. The primary aim is to reduce this time, which can be achieved by improving other areas. Key actions include passing audits like those related to the ad request waterfall, avoiding render-blocking resources, loading scripts statically, loading tags asynchronously, and using the recommended GPT host. These actions should positively impact this metric, but it is not indicative of a specific issue. Supported ad tag libraries are provided, including AdSense and Google Publisher Tag.\n"]]
