It said Online Safety Act (OSA) age verification rules for porn and other adult sites had not been evenly or fairly applied across the industry, and it would no longer take part in what it said it was a flawed system.

But on Tuesday Pornhub's owners said Apple users who had confirmed their age with the company's most up-to-date version of iOS, its mobile operating system, would be allowed back onto the site.

This is because the latest version of iOS introduces age checks for UK iPhone users, as well as for iPads running on up-to-date iterations of its own operating system, iPadOS.