
GTM, Consent Tools, and Core Web Vitals: How to Audit Third‑Party Script Cost
Third‑party script cost is often hidden inside GTM, consent tools, analytics, experiments, chat widgets, and personalisation code. Start with a route‑level inventory of what loads, where it runs, who owns it, and how it affects Core Web Vitals, main‑thread work, and consent. Then decide what to remove, defer, isolate, or explicitly accept.




















