Addingwell vs Tealium iQ Tag Management

Addingwell provides server-side tagging built on Google Tag Manager Server-Side, designed to recover advertising signals affected by ad blockers, browser restrictions, and cookie deprecation. Its monitoring tools track tag events, alert users to problems, and provide insights into sent-data quality and cookie integrity across browsers. Infrastructure includes multiple regions, CDN, JavaScript asset proxying, and reverse-proxy capabilities for managing data flows. Documentation describes server-side event delivery to Google Analytics 4, Google Ads, and Meta, plus a separate Microsoft UET Conversion API tag. Didomi-backed consent monitoring can display consent attached to each request in real time. Addingwell offers a free plan with 100,000 requests and one-region infrastructure. Pay as you go costs €90 a month and includes 2,000,000 requests and multi-region infrastructure. Unused requests do not roll over; additional requests are calculated at the end of the billing cycle and added to the invoice. Setup requires DNS records for a tagging subdomain, with propagation taking five minutes to one hour. The service is available through the web and API for websites and Google Tag Manager Server containers.

Tealium iQ Tag Management has no write-up on Specifiction yet; its figures are above.