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Companies / GTmetrix / Google Tag Manager

Does GTmetrix use Google Tag Manager?

Probably

We hold good evidence for this, but not the strongest kind.

  • Its script, DNS record or job board was loaded on the company's live website.

How we know

Websitescript: c= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f10 Nov 2026Source

About GTmetrix

GTmetrix tests website performance and shows how to optimize page load. It serves developers, marketers, agencies, small businesses, and enterprises.

Summarized from its homepage on 3 Nov 2026.

What else GTmetrix uses

GTmetrix has evidence for 16 vendors. The strongest:

MixpanelRecurlyWingifyPayPalStripeTwilioZendeskCloudflare

See the full GTmetrix tech stack

Other companies using Google Tag Manager

All 9,113 companies using Google Tag Manager

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See GTmetrix's full stack with a source for every vendor, and ask the same question about any company from the API, Claude or your browser.

  • Every company and vendor, with its public source
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