Tag Inspector

See what a page sends to its marketing vendors, live: every hit to Google, Meta, Adobe and more, with its parameters.

Tag Inspector shows which marketing tags a page has, who loaded each one, and what the page sends to its vendors, as it happens. Everything is processed in your browser. It reads, from the first request of the page: - The scripts of the page and the tags among them, told apart by the shape of their address, with a catalogue of 54 vendors, each with a type and the identifier it carries - What loaded each script: Google Tag Manager, Adobe Launch, another manager or the page's own code, with a confidence and the evidence behind it - The hits the page sends to those vendors, with their parameters, live - The Adobe Target activities and experiences the page received, from at.js or the Web SDK, beside the request that delivered them - When each data layer and manager became available on the page: dataLayer, adobeDataLayer, _satellite, alloy and google_tag_manager With Tag Inspector you can: - see the Inventory of tags, grouped, sorted and filtered, with the origin of each one - find in Health the tags loaded twice, the ones that failed to load and why, and what the page's content security policy refused - find in Cost how much each tag weighs, how long it ran, the order in which they loaded and when the layers and managers were ready - read the Hits tab live, search it and clear it - export the audit of the page as CSV or JSON, or copy a short summary It is a tool that observes. It makes no network request, and the captures are deleted when you close the browser. Free. Available in English and Spanish.