# Tagger > First-party attribution and conversion tracking platform for paid-traffic affiliates. Captures click IDs (gclid, fbclid, ttclid) server-side on the advertiser's own domain, matches them to sales platform webhooks, and dispatches conversion signals back to ad networks — recovering up to 50% of conversions lost to browser privacy restrictions, ad blockers, and iOS 14+. ## Pages - [Home](https://tagger.click/): Platform overview, features, and early access sign-up - [About](https://tagger.click/about.html): How Tagger works, data flow, and technical architecture - [Privacy Policy](https://tagger.click/privacy.html): Data handling and GDPR compliance - [Terms of Service](https://tagger.click/terms.html): Usage terms ## How It Works 1. A lightweight script (`tagger.js`, <5 KB) is added to the affiliate's presell page 2. It captures click IDs and UTM parameters server-side — immune to ad blockers 3. When the sales platform reports a conversion via webhook, Tagger matches it to the original click 4. The confirmed conversion is dispatched to the ad network (Google Ads, Meta, etc.) as a server-to-server event ## Key Capabilities - Click ID capture: gclid, fbclid, ttclid, plus custom aff_sub1–5 parameters - Server-to-server (S2S) postback dispatch to affiliate networks and ad platforms - Webhook ingestion from sales platforms (Shopify, WooCommerce, affiliate network CRMs) - Campaign-level CPA tracking across Google Ads, Meta Ads, TikTok, and native traffic - Privacy-safe: no cookies, no localStorage, IP anonymised at ingestion - Fail-safe JS: presell page is never affected by any internal error ## Use Case Built for performance affiliates running paid search and social traffic to nutraceutical, financial, and e-commerce offers who need accurate, keyword-level conversion attribution. Replaces fragile third-party pixel tracking with server-side infrastructure unaffected by browser privacy changes. ## About - **Status**: Invite-only beta (2026) - **Primary market**: English-speaking affiliates (US, UK, AU, CA) - **Infrastructure**: Europe-hosted; FastAPI, PostgreSQL, Redis - **Contact**: via tagger.click