Google Analytics 4 explained: the G- measurement ID
What Google Analytics 4 is, what a G-XXXXXXXXXX measurement ID identifies, how the Google tag and GA4 event tags differ, and how to tell if yours is set up correctly.
tags
Login SEO & Tracking
🛰️ Tag Explorer See every tracking tag on any web page 🔎 Meta Inspector Preview & fix your meta tags everywhere 🤖 Robots Tester Test any URL against any crawler, incl. every AI bot 🧩 Schema Studio Validate & generate structured data that Google loves 🔬 Stack Detector See what any website is built with 📈 SEO Analyzer Full on-page SEO audit, scored, prioritised, no signupNetwork & Diagnostics
🌐 IP Lookup Geolocate any IP on a live 3D globe ↪️ Redirect Tracer Trace every redirect hop with status, speed & headers 🔒 SSL Checker Certificate health, expiry countdown & TLS support 🧭 DNS Lookup Every DNS record + an email security report card 🌍 Network Status Our live global edge on an interactive 3D globe 🛡️ Website Security Scanner New Scan any site for security holes, headers, TLS, email spoofing and CMS exposure 🛸 Traceroute Globe Watch your packets cross the planet, hop by hop