Reduce tag load time
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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:
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
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-06-26 UTC.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-06-26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."],[[["\u003cp\u003eThis metric measures the time it takes for the ad tag library script to load from the start of page load.\u003c/p\u003e\n"],["\u003cp\u003eImproving other specific ad script audits, such as avoiding render-blocking resources or loading tags asynchronously, will positively impact this metric.\u003c/p\u003e\n"],["\u003cp\u003eThe goal is to reduce the script load time, and this metric helps track improvement in that area.\u003c/p\u003e\n"],["\u003cp\u003eCommon ad tag libraries included in this measurement are AdSense and Google Publisher Tag.\u003c/p\u003e\n"]]],["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"],null,["# Reduce tag load time\n\nOverview\n--------\n\nThe time it takes for the ad tag library script to load. This is the interval\nfrom page load to tag load.\n\nRecommendations\n---------------\n\nThis metric is not indicative of a specific issue. It should be used to help\nidentify areas for improvement and track that improvement over time.\n\nThe goal here is to reduce the time it takes for the ad tag library script to\nload. Ensuring that other, more specific audits are passing should have a major\nimpact on this metric. In particular, the following audits are likely to affect\nthis time:\n\n- [Ad request waterfall](./ad-request-critical-path)\n- [Avoid render-blocking resources](./ad-render-blocking-resources)\n- [Load ad scripts statically](./script-injected-tags)\n- [Load ad tag asynchronously](./async-ad-tags)\n- [Load GPT from recommended host](./loads-gpt-from-official-source)\n\nMore information\n----------------\n\nThe following ad tag library scripts are supported:\n\n| Library | Script(s) |\n|----------------------|-------------------------------------------------------------------------------------------------------------|\n| AdSense | `pagead2.googlesyndication.com/pagead/js/adsbygoogle.js` `pagead2.googlesyndication.com/pagead/show_ads.js` |\n| Google Publisher Tag | `.../gpt/pubads_impl_\u003cversion\u003e.js` |\n\n[Avoiding Common GPT Implementation Mistakes](https://developers.google.com/publisher-tag/common_implementation_mistakes)\n[Tagging best practices to minimize page latency](https://support.google.com/admanager/answer/7485975) \n[View audit source](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/lighthouse-plugin-publisher-ads/audits/tag-load-time.js) [Improve this article](https://github.com/googleads/publisher-ads-lighthouse-plugin/tree/HEAD/docs/audits/tag-load-time.md) [Report an issue](https://github.com/googleads/publisher-ads-lighthouse-plugin/issues/new?labels=documentation&template=documentation-feedback.md&title=Documentation+feedback%3A+tag-load-time.md)\n\n\u003cbr /\u003e"]]
