How the tech works
You do not need to be an engineer to understand what happens when you tap 'call'. These explainers open the box: how video travels, why it sometimes lags, what a Telegram Mini App is, and how on-device filters and captchas protect you.
How the tech works
How do captchas decide whether you're human?
Captchas estimate whether a visit is automated using challenges and browser signals. Repeated checks can reflect technical problems, not your behaviour.
5 min read
How the tech works
How do on-device content filters work?
A local image model can check a frame before an app blurs it. Learn what stays on the device, why mistakes happen, and what the claim can't prove.
6 min read
How the tech works
Peer-to-peer or server video chat: what's different?
Direct calls and server routes have different trade-offs. Learn what a relay does, who may see an IP address, and which privacy questions matter.
6 min read
How the tech works
What is a Telegram Mini App, and what can it see?
A Mini App opens a web service inside your messaging app. See which account details it can receive and which requests need your choice.
6 min read
How the tech works
What is hashing, and what does a hash tell you?
Hashing makes a fixed-size result from data. See a worked example, how it differs from encryption, and why hashed data isn't automatically anonymous.
5 min read
How the tech works
What is WebRTC, and how does browser video chat work?
WebRTC lets browsers send live sound, video and data. Learn how calls connect, why servers still matter, and what camera permission means.
6 min read
How the tech works
What does “nothing is stored” really mean in a chat app?
A no-storage claim needs a clear scope. Separate message content, delivery queues, connection records and copies on each person's device.
6 min read
How the tech works
Why does video chat lag, and what can you fix?
Call delay can come from uneven delivery, missing data or a busy device. Try a simple comparison to find which change helps your conversation.
6 min read