Frequently Asked Questions
Everything you need to know about one time links, expiry, encryption, and safer sharing.
Using Dotjamr
What are Link mode and Keyword mode?
Link mode creates a secure one time link. Anyone with the full link can open it once.
Keyword mode adds an extra layer. The message is locked with a keyword you choose. You share the link and the keyword separately, so only the intended person can open it.
How does Dotjamr work?
You write a message, choose Link mode or Keyword mode, create the message, and share it. When the recipient opens it successfully, the message is deleted.
When should I use Link mode?
Use Link mode for quick sharing where the link itself is the secret. It’s simple and fast. Anyone with the full link can open it once.
When should I use Keyword mode?
Use Keyword mode when you want extra control. The message is protected by a keyword. Even if someone gets the link, they still need the keyword to read it.
Do I need an account?
No. Dotjamr works without accounts, inboxes, or stored history.
How long can my message be?
Dotjamr is built for short messages. If you hit the character limit, shorten the text or send it as two separate one time messages.
Can I send images or files?
No. Dotjamr is focused on simple text messages.
Can I send the same link to multiple people?
You can, but only one person will be able to open it successfully. After the first successful open, the message is deleted.
Expiry and one time access
What does “one time access” mean?
The message is intended to be opened once. After a successful read, it’s deleted and can’t be opened again.
What happens if the link expires before it’s opened?
If nobody opens the message before the expiry time, it is automatically deleted. You’ll need to create a new one.
Can I change the expiry after creating the message?
No. Expiry is set at creation. If you need a different expiry, create a new message.
Encryption and security
Is my message encrypted?
Yes. Messages are encrypted in your browser before being sent. The server stores encrypted data, not readable text.
What’s different about encryption in Keyword mode?
In Keyword mode, the encryption key is derived from the keyword you choose. The server never receives that keyword. Without it, the message cannot be decrypted.
Is the link itself sensitive?
Yes. In Link mode, the link is the secret. In Keyword mode, the link and keyword together are required to open the message. Treat both carefully.
Does Dotjamr protect me from screenshots?
No. Once someone can see a message on their screen, they can copy or screenshot it. Dotjamr reduces lingering history, but it can’t control what someone does after reading it.
Privacy
Does Dotjamr store message history?
No inbox and no history view. Messages only exist until opened successfully or until they expire.
Will the message show up in search engines?
No. Message pages are not intended to be indexed. In Link mode, the decryption key lives in the URL fragment, which browsers do not send to servers during normal requests.
Troubleshooting
I opened a link and the message wasn’t there. Why?
Most commonly it has already been opened successfully, it expired, or the keyword was incorrect in Keyword mode. Ask the sender to create a new message.
The recipient says the link doesn’t work
Make sure they copy the full link. Some apps wrap long links. If you used Keyword mode, confirm they entered the correct keyword.