SEOmatic GTM Sync

A Craft CMS plugin that lets you configure Google Tag Manager across all sites in a multi-site setup with a single action — and optionally sync any other SEOmatic global settings from your primary site to all other sites.

Package: digitalpulsebe/craft-gtm-seomatic
Handle: gtm-seomatic

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Requirements

• Craft CMS 5.x
• PHP 8.3+
• nystudio107/craft-seomatic ^5.1
• A multi-site Craft installation

Installation

Install via Composer:

composer require digitalpulsebe/craft-gtm-seomatic

Then enable the plugin in the Craft control panel under Settings → Plugins.

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Features

• GTM ID management across all sites — Enter your GTM Container ID once and save it to every site's SEOmatic global bundle in one step. Enables or disables the GTM script on all sites simultaneously.
• SEOmatic section sync — Copy any combination of SEOmatic global settings (meta tags, scripts, JSON-LD, site identity, sitemap config, etc.) from the primary site to all other sites. Useful after making changes to the primary site that should propagate everywhere.

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Usage

Navigate to Utilities → GTM for SEOmatic in the Craft control panel.

GTM Container ID

1. Toggle Enable Google Tag Manager on or off.
2. Enter your GTM Container ID (format: GTM-XXXXXXX).
3. Click Save — the ID and enabled state are written to every site's SEOmatic bundle immediately.

A badge appears on the utility icon when no GTM ID has been configured yet.

Sync SEOmatic settings to all sites

1. Select the SEOmatic sections you want to copy from the primary site.
2. Click Sync to all sites.

Available sections:

Section	What it covers
General	Meta global vars
Site identity	Meta site vars
Sitemap	Sitemap configuration
Bundle settings	SEOmatic bundle settings
Frontend templates	Frontend template overrides
Meta tags	<meta> tag containers
Meta links	<link> tag containers
Title	<title> container
Scripts	Script containers (including tracking scripts)
JSON-LD	Structured data containers

Note: Existing values on all non-primary sites will be overwritten for the selected sections.

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Credits

Developed by Digital Pulse.

Built on top of SEOmatic by nystudio107.