What is readonlyonce.com?
The goal of this site is to securely share sensitive information, such as passwords, with someone, ensuring that the information can only be read once. So you can be sure that no one with potential access to your chat later will have access to your secret.
Is it secure?
Security is our top priority. We implement client-side encryption, meaning we never transmit unencrypted secrets to our servers, and we do not transmit the decryption key. The key is attached to your link, as it is necessary for decrypting the secret. The data we collect is insufficient for decrypting your secrets. In any case, we promptly delete the encrypted data after the first use of the link or when the link expires.
Here is a scheme that explains how it works
Creating a secret
Reading a secret
Why you can trust this site?
In fact, you should not trust anyone on the internet, especially if we talk about passwords or secrets. If you have some technical knowledge, let's check what this site is doing with your secret and what it sends to the server, to be sure. If you don't have that knowledge, you can ask someone who has it and whom you trust to check.