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> www.wechat.com.fb.me

> www.wechat.fb.me

> www.weixin.qq.basic.facebook.org

> www.weixin.qq.facebook.org

Can anyone enlighten me why these exist and what they do? I never thought WeChat and FB had collaborated on any level.

It seems like DNS for fb.me returns the same address records for any subdomain. So anything you can conceive of .fb.me is valid -- e.g., dheera.fb.me. Ditto facebook.com.

my guess is: scam sites acquired by meta to stop the scam

Nope, those are subdomain of their own.

An internal entrepreneur is a type of entrepreneur who operates inside the confines of an organisation such as a business unit or a government body.

https://en.wikipedia.org/wiki/Internal_entrepreneur

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