Keep confidential video stimuli and interview links inside your study
Uploaded video stimuli play through signed links, and interview links can lock to the first device, so unreleased concepts stay with your participants.
Maarten ClaesAt a glance
- Uploaded video stimuli play through signed URLs, with no participant login
- Lock each interview to the device and browser that first opened it
- Forwarded interview links are blocked on any other device
- Participants can still return to an interview on their own device
- Switch the device lock on per study under Security & access
Release details
- Shipped
- Area
- Platform & security
- Kind
- Security
- Author
- Maarten Claes
Pre-launch research means showing people things that are not public yet: a TV spot weeks before it airs, a pack design that is still a first draft, a trailer. That material can leak two ways. The video file itself, if its address opens for anyone who has it. And the interview link, if a participant forwards it to a friend or a group chat and a stranger sits through your concepts. Conveo closes both.
Secure video stimuli, how it works and what it changes, no sound needed.
How it works
Upload the video as a stimulus. Attach it to a question or section in your topic guide as an uploaded video.
Playback runs on signed URLs. Conveo serves the file through signed links, so only participants in your study can play it. They need no account or password.
Lock the interview to its first device. Turn on "Lock interview to original device" under Design, Advanced settings, Security & access.
Forwarded links stop working. The interview opens only on the device and browser where the participant started it. Anyone who tries the same link elsewhere is blocked, and the participant can still come back to it on their own device.
Research teams asked for it in four situations
These come from teams we work with in consumer goods, food and drink, pet care, media and entertainment, and research agencies. We kept them anonymous.
Products that are not on the market yet. New-to-world products and early pack designs that only a small group should see before launch.
Ads and trailers before they air. Creative that needs real reactions while it is still under wraps.
Confidentiality for participants. Legal teams wanted participants bound to confidentiality before the first stimulus, and asked what stops screenshots and reposting.
One link, one participant. Teams that lost track of a link once it was passed around, and wanted each interview to stay with the person it was sent to.
What this means for your research
Confidential stimuli can sit in the same video conversations as the rest of your study, with no separate viewing room and no login step for participants. You choose per study whether to lock links, and can leave it off where people like to switch between phone and laptop.
Three limits to know. A participant can still photograph or record their screen, so for sensitive work tell people on the welcome page that the material is confidential. The signed playback covers videos you upload; YouTube videos, embeds and links are hosted elsewhere and follow their own sharing rules. And the device lock is not a fraud check on its own, so keep reviewing the fraud signals in your interview grid.
Read the study settings guide for the device lock, or the stimuli guide for uploading videos.


