A: Hello again,

We have explained all of these features to you in previous replies. Besides, the features are pretty standard across the industry and work the same way in any video hosting software.

If you are interested to learn more about video protection and security from the ground up, I highly recommend watching this webinar where I go through every video security feature in detail - https://gumlet.tv/watch/674ea3535a8822b2de6bc80e/

To go over your points,
1. Video privacy
1.1 Unlisted videos are hidden from search engines and any crawlers. Their links can not be guessed by anyone. People can get the video link only if you share it.
1.2 Private videos only play on the Gumlet dashboard. They won't play anywhere else, and only people with access to your Gumlet account can see them.

1.3 Video channels
1.3.1 - Public channels are visible to search engines. It can be viewed by anyone with the link to the channel.
1.3.2 - Private channels can only be accessed by people with access to your Gumlet account (users) or channel members (a feature available in tier6)

1.4.1 If you want to use Gumlet channels with access to only members, essentially like a private version of Patreon, you will have to upgrade to tier6. It is not possible with tier 2.
1.4.2 If you want to stick to tier 2, you can build your own website with sign-up and only allow them to view videos. Here, using other features like unlisted videos and allowed referrers (whitelisting) domains will help you protect your videos.

2. Whitelist referrers (AKA: allowed referrers," the more inclusive version)
Here is the doc for that: https://docs.gumlet.com/docs/video-protection-settings#2-allow-domains
This feature is very common and does not require anything except turning it on in our dashboard to work for a website. If your website is example.com and you add it as an allowed referrer on our dashboard under "video security > whitelist referrers," then your videos will not play on any other website that is not example.com.
The header request only needs to be sent in case of a mobile app, which provides additional information.
We will try to add more clarity here that, for the website, no further action is needed.

4. Gumlet has two products. Video and Image.
The link you are referring to is under the documentation for the image product. This product is not relevant for your use case. So kindly ignore any documentation related to it. It is only for software developers.

5. If you have turned on whitelist referrers and someone else copies your embed code on their website, Gumlet will not let that video play. That is just how the function works. It is pretty standard not just for videos or Gumlet, but for a lot of stuff on the internet.
I recommend that you learn more about the feature and its limitations through your own research.

Hopefully, this clarifies things a bit.