Signed player links
The player link is made for each view after checking enrolment, and stops opening after 15 minutes.
Features / Content protection
Your lessons for those who paid. And any leak signed by its source.
Every video opens on a signed player link, made when the student presses play after checking their right to it, that stops opening after 15 minutes — and the student's name floats over what they watch. A copied player link doesn't last; a leaked screen recording tells you where it came from.
- 15 min
- player link lifetime
- 25 s
- and the watermark moves
- 15 min
- file link lifetime
Before Dirassa+
How courses usually get stolen
- An “unlisted” YouTube link copied into another group.
- A Drive file shared with a friend, then with a hundred.
- One paid account shared by ten students.
- A screen recording resold at half price, and no idea where it came from.
What you get
Layers of protection working together, without bothering honest students.
Nothing opens without checking the student's right to it, and no link we give lives long.
A watermark with the student's name
The viewer's name floats over the video, moves corner to corner every 25 seconds, and stays in fullscreen.
Checked on every open
Every file is served on a short-lived link created at click time, after checking enrolment and that the file belongs to the lesson.
PDFs without a download button
Per file: downloadable, or viewable inside the lesson only.
A live for its students only
The live's meeting link only shows to people entitled to it, and only a quarter of an hour before the start.
Sign out everywhere
Students can end all their open sessions in one tap if they think someone else is using their account.
How it works
What happens when a student presses “play”.
- 1
Check
Is the student enrolled? Is the lesson open to them?
- 2
Short-lived link
A signed player link just for this view, which stops opening after 15 minutes.
- 3
Watermark
The student's name appears over the video and moves throughout.
- 4
Expiry
A copied player link stops opening; only a rightful student gets a new one.
The watermark
Every frame knows who's watching.
The student's name appears semi-transparent over the video and moves between the four corners every 25 seconds, so it's hard to crop out. In fullscreen it stays on top of the video.
- A leaked screen recording carries the name of whoever leaked it — that alone deters most students.
- It applies to videos in your library, not to external YouTube links.
- In the iPhone's native fullscreen player the watermark doesn't show — an Apple limitation.
Links and files
A copied player link dies fast.
We never hand a student a permanent link to a video or a file. Every link is created on request, after checking their right, and expires quickly: 15 minutes to open the player, 15 minutes for files.
- Lesson files (up to 200 MB) go through the server, which checks enrolment and that the file belongs to the lesson.
- Hide the download button per PDF and per lesson.
- Students sign out of every device in one tap, from their profile.
Questions
Frequently asked questions
Can screen recording be blocked?
No, on any web platform. That's why the student's name is on every frame: recording is possible, but a leak points to its source.
What if a student shares the video link?
The player link is signed, stops opening after 15 minutes, and is only renewed for an enrolled student. It isn't a full lock: someone with technical skills can save the video, which is why what's shown carries the student's name.
Do you limit the number of devices?
No. Students can sign out of every device in one tap, and the name watermark deters account sharing.
Does the watermark protect YouTube videos?
No. The watermark and signed links apply to videos uploaded to your Dirassa+ library.
Can students download a PDF?
Only if you allow it. Even without the button, a displayed file can be saved from the browser — so don't rely on that alone.
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