Anyone who has the signing link can add a message and see who else has signed. Until the card is unlocked, that is all they see: the names, not the words or videos, which are held back on our servers. Once someone pays to unlock the card, everyone with the link can read every message. Links are long, random and not listed anywhere, and we ask search engines not to index them. Treat a signing link like an invite to a private group chat: share it with the people who should be in it.
Anyone with the private organizer link can remove messages, change the headline, seal the card and reopen it. Only the organizer gets that link. Keep it to yourself unless you want a co-organizer. The organizer link does not skip the unlock: the words stay hidden there too until the card is paid for.
Once a card is unlocked and sealed, the recipient sees it through the reveal link. That shows the same messages as the signing page.