Age verification
A measure designed to verify a user's exact age — a legal category, not an evaluation of a provider.
UNITED KINGDOM / ONLINE SAFETY ACT / OFCOM / 28 AUG 2026
In its official 28 August update, Ofcom reported two sites that introduced age assurance — a term covering age verification or age estimation — and a further seven that blocked access from the United Kingdom. These are outcomes described in that update; they do not yet tell us the effect of either one.
What you gain: separate what Ofcom counted from what you might assume about protection, effectiveness, or the rest of the world.
Next: one fictional door, two decisions, then the boundary the count cannot cross.
The decisive source is Ofcom's update. The Act clarifies the vocabulary; the door in the drawing is fictional.
01 / the count
Ofcom did not publish a leaderboard. It published an update about concrete compliance results: two sites introduced age assurance, while a further seven blocked UK access.
That gives us simple, checkable arithmetic: 2 + 7 = 9 site-level outcomes in this update. “Outcome” does not mean “equal safety measure”; it means Ofcom described that change.
| path | sites | what it supports |
|---|---|---|
| age assurance | 2 | introduced a measure |
| UK block | 7 | stopped access from UK |
| total in update | 9 | 2 + 7 |
The unit is “named site and described outcome”, not “all regulated services”.
02 / two exits
Product change. Ofcom says two sites implemented age assurance after engagement with their providers.
Access change. A further seven sites blocked access for people in the UK; the update does not turn that into a global measure.
03 / vocabulary
“Age assurance” is Ofcom's working term. The Online Safety Act 2023 uses two forms: age verification and age estimation.
A measure designed to verify a user's exact age — a legal category, not an evaluation of a provider.
A measure designed to estimate a user's age or age range, in the terms defined by the Act.
The terms are checked against the Online Safety Act 2023, including section 230 and the specific duty in section 12.
04 / do not extrapolate
Ofcom describes categories and outcomes, but this page does not name or identify the sites.
We do not have all comparable services here. Nine is the update's outcome count, not a market denominator.
The count is not an effectiveness test, a protection rate, or an estimate of harm avoided.
This update does not tell us whether a block stays, changes, or what happens outside the UK.
05 / the map edge
Ofcom explains a geoblock as restricting access from UK IP addresses. On this page, jurisdiction does not become a map of global protection: the record does not tell us what happened to users in other countries.
An outcome about access from the UK is not a universal measure of online safety.
interpretation limited to Ofcom's record06 / the allowed claim
Ofcom says it measures results by the change it delivers. For this update, the change is observable: two sites introduced age assurance and seven blocked the UK.
That is the object's small but solid gain: see one rule's incidence in two forms without assigning an effectiveness that the source does not measure.
07 / the check sheet
Primary source: Ofcom: UK children protected from more high-risk sites as a result of Ofcom action.
Legal context: Online Safety Act 2023, for the definitions of age verification and age estimation.
ofcom-high-risk-services-2026-08-28.html16fbbc88…c1c5dbadf67online-safety-act-2023.pdf4b326561…6e460c81The local archive keeps the decisive pages; the public text does not retain service names or the material referenced by the source.
Earlier if Ofcom changes the update, publishes its age-assurance assessment, or changes relevant guidance. Keep separate: the reported outcome, the UK jurisdiction, and the effectiveness question.
A good number does not open every door. It also shows where you cannot go.