Google Tag Manager
8 Case Studies
A Google Tag Manager Case Study
Rail Europe, a leading North American distributor of European rail travel with up to 20 B2C and B2B domains, faced growing complexity from dozens of vendor tags and a need to expose rich custom data to multiple partners. Tag deployment and updates relied on IT, creating months‑long delays, inconsistent or forgotten tags, slower page loads, and limited marketing insight.
Rail Europe implemented Google Tag Manager and a single dataLayer snippet to centralize tags, migrate vendors, and remove unused code. As a result pages load 20% faster, tag deployments now take minutes instead of months, tagging is consistent across sites, IT is freed to focus on development, and marketing gains faster, more accurate data for targeting and optimization.
Lothaire Ruellan
Director of Online Marketing