Google tag began using service workers to send data to server-side Tag Manager

Date

Mar 4, 2025

Regions

Global

Primary source

Tag Manager Help

Sources

• open_in_new
  Release notes - Tag Manager HelpTag Manager Help · Mar 4, 2025

Related changes

• Jun 30, 2025sGTM web container client now serves all Google scripts; GA client dropped dependency serving
• Jun 24, 2025Google tag gateway pause and delete merged; Cloudflare setups can now be rolled back
• May 15, 2025Server-side Tag Manager image 3.0.0 upgraded runtime to Node.js 22
• May 8, 2025First-party mode renamed Google tag gateway for advertisers and opened to everyone with Cloudflare
• May 7, 2025Tag coverage report dropped the 'Suggested' label and auto-removes pages idle for 60 days
• Apr 4, 2025Tag Diagnostics added 'tag data may be restricted', missing gtag config and missing Google tag alerts

← See this change in the change history