container audit

GTM-57QLB7X

This container ships 60 hand-written scripts (23 KB of JavaScript) to every visitor — more than 95% of the 46,522 containers we have measured. That is an application's worth of code, delivered as tag configuration.

10 third-party hosts reachable from its tags — more than 80% of the 46,522 containers we have measured.
Measurement runs through a server container on its own domain — the mark of a mature setup, and rarer than the tooling vendors imply.
712 published versions — each one live for every visitor the moment it was published.
duplicate-ads-conversion is uncommon — under 4% of the containers we have measured have it. That is context rather than a verdict: a server container is rarer still and is a sign of a mature setup. What it means is in the finding itself.

Tags211

Custom scripts60

Third parties10

Delivered681 KB

Versions712

What we observed

A real browser loaded invisalign.com a month ago and recorded every request it made. This is what happened, as distinct from what the container is configured to do. It is one page load — anything that fires only deeper in the site did not fire here.

Container loaded from googletagmanager.com — Google

Measurement sent to collect.invisalign.com — not Google

Measurement is first-party; the container still loads from Google. These are separate decisions, and this is the more common of the two.

Forwarded to GA4 ×5 — read from the measurement id, not the hostname

Consent a consent banner was present and we accepted it. 4 measurement hits left the page before it was granted, carrying a client id (whether that is permitted depends on jurisdiction, and this was not a European visit). 5 hosts appeared only after consent was granted. Google recorded gcs=G111 (all granted). 9 advertising hosts were contacted before anything was granted.

Third parties contacted 25 hosts — consent.trustarc.com, images.ctfassets.net, www.googletagmanager.com, bat.bing.com, s.pinimg.com, snap.licdn.com, sc-static.net, cdn.userway.org, and 17 more

dataLayer events seen page_view, gtm.js

Where the data goes

Confirmed — a browser watched this site send measurement data to collect.invisalign.com, not to Google. observed on invisalign.com More info »

Findings

Ordered by consequence. review has a concrete cost when it bites; info is real but depends on your setup. Seen is how common it is across the containers we have measured — reported separately on purpose, because common and harmless are different claims.

reviewdocument.write (15)

15 pieces of custom code call document.write.

Whydocument.write blocks the HTML parser while it runs, and browsers ignore it entirely once the page has finished parsing — so an async-loaded tag using it can silently do nothing.

CheckIf these tags fire on page load they are costing render time; if they fire later they may not be working at all. Worth confirming the tag still does what it was added to do.

Seenseen in 18.4% of 46,522 containers measured

reviewSame Google Ads conversion defined more than once (1)

1 conversion action is defined by more than one tag.

WhyA conversion ID plus label identifies one action. Two tags carrying the same pair can report the same conversion twice, inflating conversion counts and the ROAS that bidding runs on.

CheckCheck whether both tags can fire on the same page. If they can, your Ads reporting is overstating this action and automated bidding is optimising against it.

Seenseen in 3.8% of 46,522 containers measured

infoLoads JavaScript from another host (3)

3 pieces of custom code fetch and run JavaScript from another host.

WhyWhatever that host serves executes with full access to the page — it can read the DOM, cookies and form fields. The code is not in this container, so it can change at any time without any change here.

CheckConfirm you recognise every host below and that someone owns the relationship. A host you cannot name is the one to chase.

Seenseen in 54.4% of 46,522 containers measured

infoConsent configuration detected (3)

The container declares one or more consent signals.

WhyConsent handling is present in the container. This describes what the artifact declares; what actually happened on the page is measured separately, above.

CheckConfirm these settings match the consent policy you intend to enforce, and compare them with the before-and-after observation.

Seenseen in 44.6% of 46,522 containers measured

Third parties it can reach

Each host is a party that can execute code or receive data in a visitor's browser. Follow one to see who else loads it. More info »

login.dotomi.com ×7 pt.ispot.tv ×3 secure.smart-business-365.com ×2 static.ada.support ×2 trkn.us ×2 analytics.tiktok.com ×1 c.pmsrv.co ×1 js.adsrvr.org ×1 pixel.byspotify.com ×1 static.hotjar.com ×1

What the custom templates can do

Custom templates are third-party code shipped inside the container. Injecting scripts and running page globals is ordinary for them — most tag templates need it to work — so this is an inventory, not a warning. It lists the capability each template declares so you can match it against templates you meant to install.

__cvt_5RFHV gallery injects code from consent.trustarc.com · runs page-level globals

__cvt_30248500_1325 private runs page-level globals

__cvt_30248500_1343 private injects code from cdn.userway.org

__cvt_30248500_577 private injects code from connect.facebook.net · runs page-level globals

__cvt_K4VXG gallery injects code from sc-static.net, tr.snapchat.com · runs page-level globals

__cvt_PBGZL gallery injects code from www.redditstatic.com · runs page-level globals

Detected on

Sites observed loading this container. A container used across many hosts is a shared template; one on a single host is a bespoke build. Follow a site to see every container it loads.

invisalign.in invisalign.com

What this audit describes

Containers change. These findings describe one specific artifact, and you can re-fetch it to check this reading.

Container	`GTM-57QLB7X`
Published version	`712` — the identity of this configuration. It changes only when someone publishes.
Read at	2026-08-11 20:53:25 UTC (a month ago)
Source	`https://www.googletagmanager.com/gtm.js?id=GTM-57QLB7X`
Body checksum	`b299af6c44a95e02110e74bc67055a8a0485d4d4aecb4d55f18e90a3609bfe9e` Evidence of the exact bytes we read, not an identity: Google varies the response per request, so re-fetching an unchanged container yields a different checksum. Compare the published version instead.

Re-audit

This reading is from a month ago. A container can be republished at any time, and nothing here updates on its own — a fresh read is the only way to know whether it still says this. Running it again replaces this page in place, so the link keeps working.

Re-audit GTM-57QLB7X

Check another container

Put this container under version control. Tagora exports it to a repository you own, so every change arrives as a pull request. How it works »