How To Parse Utm Parameters
📖 Bu rehber ToolPazar ekibi tarafından hazırlanmıştır. Tüm araçlarımız ücretsiz ve reklamsızdır.
Extracting UTMs from the URL
Read the UTMs on the first page load of a session. If any are present, stash them. If none are present, keep whatever was stored previously. Two stores you typically need:
When to read, when to store
For most SaaS: capture both first and last touch, report both, and let revenue ops argue about the ratio. Capturing both costs nothing extra at pageview time.
First-touch vs last-touch vs multi-touch
A user might visit your site six times before converting, each visit with or without a UTM set. The sequence looks like:
The attribution chain
If you run GA4, Amplitude, Mixpanel, or similar, they read UTMs from the URL automatically — you don’t need to forward them. Your stored UTMs are extra, for internal dashboards, CRM enrichment, and server-side event logs that the client-side tag cannot reach.
Server-side parsing
Never put PII — name, email, phone, account ID — into UTM values. The convenience is not worth the compliance risk (GDPR, CCPA).