Onboarding centralized? [add contact with vCard, besides i.delta.chat]

[link2xt]

You can read how invite links work at GitHub - deltachat/invite: Invite links for deltachat · GitHub
Delta Chat handles the links internally and does not depend on i.delta.chat website to be up.

https://i.delta.chat is a fallback for the case when user does not have Delta Chat installed, telling to install Delta Chat and using the link inside the app. No data about the contact is sent to i.delta.chat even when you open the link in a browser.

I have previously wrote a longer post at

The life-changing magic of WKD

Nothing is leaked to https://i.delta.chat. i.delta.chat can be down and you can firewall it away, the link will still work. https://i.delta.chat is a static website that is only used as a fallback for users who click on it while having no Delta Chat installed, it then gives them instruction to install delta chat and open the link with it. Even when you open it in a browser, the web server does not receive any email addresses because this data is after the # symbol (in the URI fragment). This is…

@session

or is there on other way to add profiles/contacts without the https://i.delta.chat links ?

You can use vCards for this. Send a contact as an attachment (you can send contact “Me” to self as well), then export it, then send it any way you like.