container audit
GTM-WF2WLVBX
2 tags, no hand-written scripts, 0 third-party hosts — smaller than 90% of the 46,522 containers we have measured, and carrying none of the hand-written JavaScript most of them do.
inner-htmlis uncommon — under 6% 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.
Tags2
Custom scripts0
Third parties0
Delivered347 KB
Versions15
What we observed
A real browser loaded fukuishimbun.co.jp 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
Quantcast answered its own API. 3 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). 9 hosts appeared only after consent was granted. Google recorded
gcs=G1 (no consent signal). 10 advertising hosts were contacted before anything was granted.Third parties contacted
25 hosts — fonts.googleapis.com, ads.rubiconproject.com, fki.ismcdn.jp, pagead2.googlesyndication.com, c.amazon-adsystem.com, securepubads.g.doubleclick.net, yads.c.yimg.jp, s.yimg.jp, 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 fukuishimbun.co.jp 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.
reviewWrites innerHTML (1)
1 piece of custom code assign to innerHTML.
WhyAssigning innerHTML parses the string as HTML. If any of it comes from the URL, the page or a cookie, that is a script-injection route into your own site.
CheckCheck whether the assigned value is a fixed template or built from something a visitor can influence.
Seenseen in 5.7% 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
infoUses browser storage (1)
1 piece 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 »
No third-party hosts were found in this container's tags.
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-WF2WLVBX |
|---|---|
| Published version | 15 — the identity of this configuration. It changes only when someone publishes. |
| Read at | 2026-08-22 10:49:58 UTC (a month ago) |
| Source | https://www.googletagmanager.com/gtm.js?id=GTM-WF2WLVBX |
| Body checksum | e5d0e132b275f392d77c58608d923e268d09776e5bc749bd871f5b1d3efc2412Evidence 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 »