Githubusercontent Image
The URL typically looks like this: https://user-images.githubusercontent.com/user_id/repository_id/random_hash/image.png
https://raw.githubusercontent.com/username/repo/branch/path/to/image.png githubusercontent image
GitHub uses Fastly CDN with:
Since user-images URLs contain a unique hash, you cannot simply overwrite an image by uploading a new one with the same name. You will get a new URL. The URL typically looks like this: https://user-images

