Question 1

What is a tag inspector?

Accepted Answer

A tag inspector is a tool that scans a web page and identifies all the analytics, marketing, and advertising tags installed on it. This includes trackers like Google Analytics, Meta Pixel, Hotjar, and tag managers like GTM.

Question 2

How does this tag inspector work?

Accepted Answer

It fetches the HTML source of the page you enter and scans it for known script patterns, tracking pixels, and initialization calls from 35+ popular services. No browser extension needed.

Question 3

Can it detect tags loaded dynamically by GTM?

Accepted Answer

This tool inspects the initial HTML source. Tags loaded dynamically via Google Tag Manager after page load may not appear. For those, you'd need a browser extension that runs on the live page.

Question 4

Is this free?

Accepted Answer

Yes, completely free with no sign-up, no limits, and no ads. Enter any URL and get results instantly.

Question 5

What's the difference between this and the SEO Inspector?

Accepted Answer

The SEO Inspector checks meta tags, headings, and on-page SEO. This Tag Inspector focuses on analytics, marketing pixels, and third-party scripts — the tracking and measurement side of things.