MyKavo

Free tool

Script Detector

List every external script loaded by a page and identify common services — Google Analytics, Tag Manager, Meta Pixel, Stripe, Hotjar, Intercom, HubSpot, and more. Free, no account needed.

Why script monitoring matters

The scripts on a page are its supply chain. Analytics, tag managers, pixels, chat widgets, and payment scripts all get added by different people at different times — and any of them can silently disappear during a rebuild or theme update. A missing Google Analytics script means weeks of invisible data loss; a vanished Meta Pixel means ad campaigns optimizing blind; an unknown third-party script appearing out of nowhere can be a compromise.

This detector fetches the page's HTML and lists every <script src>tag it finds: the full URL, the domain it loads from, whether it's third-party, and — where the domain matches a known service — which product it belongs to. Note that this is static analysis of the delivered HTML: scripts injected at runtime by other scripts (for example, tags fired through Google Tag Manager) won't appear here.

A one-time inventory tells you what's there today. The expensive failures are the ones that happen next month: MyKavo snapshots the scripts on every monitored page during each scheduled scan and emails you when an important script is removed, replaced, or when an unfamiliar one shows up.