The site Netzpolitik, which describes itself as a platform for digital rights, has previously revealed how Tiktok hid videos with people with functional variations. At the time of publication, Tiktok had changed its routine, but defended itself by saying that it wanted to protect people with functional variations.

Many children today use Tiktok despite the fact that the site has a formal age limit of 13 years. According to EU data protection legislation, children must obtain the approval of their parents before signing accounts on social media, and question marks surrounding Tiktok's routines have led, among other things, to the Danish Data Inspectorate initiating an investigation of the company.

Now Netzpolitik comes with new information about Tiktok's handling of the age limit. According to Netzpolitik, they have not checked the stated age of the users, but have had their own internal system for determining the age of the users. However, the company's moderators have been instructed not to block children from the platform.

Netzpolitik describes, with reference to two independent sources who have had insight into the company's practice, how Tiktok has internally developed a system where users are classified into one of four groups based on their appearance.

• "Whitelist +" for users who appear to be 15 years of age or older
• "Whitelist" for users who appear to be 13 years of age or older
• "Blacklist" for users who look younger than 13
• No information

However, according to Netzpolitik's sources, there was no automatic blocking of the users who were placed on the "black list", however, their reach within the network was limited. In some cases, accounts could be reported to a special team in Beijing, which could decide on suspension.

Until March this year, the categorization of users must also have been revealed in the form of figures in Tiktok's source code. However, online policy has not succeeded in finding out what the figures mean.

In a comment to Danmarks Radio, a spokesperson for Tiktok writes that they have an age limit and always ask users to state their age. It is also written that you immediately stop accounts when you find out that someone is under 13, but avoid commenting on the information about an internal classification system.

The expert: Therefore, it is warned for Tiktok - but not for Facebook:

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