container audit
GTM-T4FMV7W
297 tags, 744 KB delivered to every visitor — more than 90% of the 46,522 containers we have measured. Size is a description here, not a fault.
- 32 custom HTML tags carrying 74 KB of JavaScript — more than 80% of the 46,522 containers we have measured. This runs on every page the container loads on.
- 1 third-party host reachable from its tags.
duplicate-ga4-configis uncommon — under 5% 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.
Tags297
Custom scripts32
Third parties1
Delivered744 KB
Versions107
What we observed
A real browser loaded gumtree.co.za 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 — GoogleMeasurement sent to
google-analytics.com — GoogleConsent
a consent platform is present, but our browser could not complete the accept step — so the before-and-after comparison did not run here. 10 hosts appeared only after consent was granted.
Third parties contacted
25 hosts — pagead2.googlesyndication.com, securepubads.g.doubleclick.net, micro.rubiconproject.com, static.vic-m.co, static.hotjar.com, sibautomation.com, analytics.tiktok.com, www.googletagmanager.com, and 17 more
dataLayer events seen
gtm.js, gtm.dom, gtm.load
Where the data goes
Not observed — on the page we loaded, measurement went to Google and nowhere else. observed on gumtree.co.za 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.
reviewUniversal Analytics tags still shipped (214)
214 Universal Analytics tags are still in the container.
WhyUniversal Analytics stopped processing data in July 2023. These tags still download and execute on every matching page, and send to an endpoint that discards them.
CheckNothing is being collected from these. Confirm the equivalent GA4 tag exists, then delete them.
Seenseen in 23.2% of 46,522 containers measured
reviewSame GA4 property configured more than once (1)
G-Z40YHYFJXH is configured by 2 separate tags.
WhyEach config tag initialises the property independently, so a single page view can be counted once per tag. Sessions, users and conversion rates all inherit the error.
CheckIf more than one of these fires on the same page you are double-counting. Compare against a known-good day, or check for a step change in traffic when the second tag was added.
Seenseen in 4.8% of 46,522 containers measured
reviewNo consent signal in the container (1)
Nothing in this container sets, reads, or gates on a consent state.
WhyThe container itself neither sets a Consent Mode default, holds any tag back for consent, nor references a known consent platform. Either enforcement lives entirely outside GTM — where it cannot be audited from here — or tags fire regardless of what a visitor chose.
CheckIf a consent platform blocks scripts before GTM loads, this is fine — confirm that is actually the case. If not, tags are firing on a choice nobody recorded.
Seenseen in 52.1% of 46,522 containers measured
infoOne variable that a great deal depends on (230)
"gtm.element" is read by 230 tags and triggers — more than anything else in this container.
WhyGTM shows you where a variable is defined, never how much depends on it. Editing this one touches a large share of the container at once, and whatever breaks will surface somewhere that looks unrelated to the change.
CheckBefore changing it, check what reads it. If it feeds both measurement and consent or routing logic, split those uses apart first.
Seenseen in 10.1% of 46,522 containers measured
infoUses browser storage (25)
25 pieces of custom code read or write localStorage or sessionStorage.
WhyBrowser storage persists across visits and is not covered by cookie consent tooling, so it is easy to overlook when auditing what you keep on a visitor's device.
CheckConfirm nothing personal is being kept there, and that it is covered by your privacy notice.
Seenseen in 23.3% 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 »
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.
What this audit describes
Containers change. These findings describe one specific artifact, and you can re-fetch it to check this reading.
| Container | GTM-T4FMV7W |
|---|---|
| Published version | 107 — the identity of this configuration. It changes only when someone publishes. |
| Read at | 2026-08-22 14:08:10 UTC (a month ago) |
| Source | https://www.googletagmanager.com/gtm.js?id=GTM-T4FMV7W |
| Body checksum | 61f85ca442cb4e7ec0d8ca9391d34fa59b6e09519b633f679053cecc7f688d11Evidence 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.
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 »