Verify the age of adult websites users via their device operating system

22 November 2025

A provider of adult video content — I’ll refrain from naming them, in the hope of stopping network content filters getting upset — is suggesting the age of their audience be verified through the operating system (OS) of their device. Note: the link is to a blog post by the provider, not to any NSFW content. I can’t speak for what happens if you start clicking other links on the page though.

More of these laws are coming, and the safety of our users is one of our biggest concerns. However, the best and most effective solution for protecting minors and adults alike is to identify users at the source: by their device, or account on the device, and allow access to age-restricted materials and websites based on that identification. This means users would only get verified once, through their operating system, not on each age-restricted site. This dramatically reduces privacy risks and creates a very simple process for regulators to enforce.

The idea certainly makes sense, and would save having to go through a separate age verification process on every website, social network, and other online service that requires it.

To date though I don’t recall ever supplying any of the OS’s I use with my date of birth, let alone verifying that information. It seems to me to make age verification possible this way might require some OS suppliers to make changes to allow this.

Update: on checking, I see my date of birth details are entered into my smartphone’s OS, iOS. I expect those details were verified when I obtained my first iPhone, as I needed to present photo identification on signing up with my then phone company.

Assume then my age is verified as far as my smartphone goes. As for my computer OS, Linux Mint, I’m pretty sure I didn’t supply any such info. Couldn’t even be certain I entered my full name. This I will need to check on.

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