Online Safety: Register of categorised services and list of emerging Category 1 services
Published: 30 June 2026
Last updated: 10 July 2026
The published register of categorised services sets out which services are categorised and are therefore subject to additional duties under the Act.
Ofcom's approach to implementing the Online Safety Act
Published: 26 October 2023
Last updated: 2 July 2026
Our plans for putting online safety laws into practice, and what we expect from tech firms.
Online Safety industry bulletin – June 2026
Published: 29 June 2026
Investigation into whether First Time Videos LLC has failed to comply with the Online Safety Act 2023
Published: 10 June 2025
Last updated: 19 June 2026
We are investigating whether First Time Videos LLC has failed/is failing to comply with its duties under the Online Safety Act 2023 to protect children from encountering pornographic content through the use of highly effective age assurance.
Extreme pornography – a reminder of providers' duties
Published: 22 May 2026
A reminder to pornography services about their duties to tackle Extreme Pornography under the Online Safety Act, in response to allegations of "sleep content" being available to UK users.
Ofcom investigates two porn sites under age-check rules
Published: 13 May 2026
Ofcom has launched investigations into the providers of two pornography sites to determine their compliance with age-check rules under the UK’s Online Safety Act.
Important dates for Online Safety compliance
Published: 17 October 2024
Last updated: 8 May 2026
The Online Safety Act makes companies that operate a wide range of online services legally responsible for keeping people safe online.
Online safety industry bulletin - March 2026
Published: 17 March 2026
Last updated: 24 March 2026
As we move into 2026, we continue to see action taken in response to the Online Safety Act, including more services introducing age checks across social media, dating, gaming and messaging, alongside ongoing enforcement activity where services fall short.
Duty to report child sexual exploitation and abuse (CSEA) content: know the rules and how to comply
Published: 12 March 2026
Last updated: 13 March 2026
Guidance on the duty for service providers to report child sexual exploitation and abuse (CSEA) content under the Online Safety Act, and what to do to comply.
Ofcom investigates online forums hosting image-based sexual abuse
Published: 6 March 2026
Last updated: 11 March 2026
Ofcom has today launched an investigation into whether the provider of two online image boards has failed to comply with duties to protect people in the UK from illegal content.