Block AI sites on the whole exam Wi-Fi.
ExamGuard Online catches risky behaviour on the exam device. ExamGuard Network goes one layer deeper: point the exam-room router at one DNS address and ChatGPT, Gemini, doubtnut, Chegg and 70+ AI and homework-solver sites stop loading for every device on that Wi-Fi — phones included, for the length of the exam. No app, no student install.
How it works
Point the router DNS once
Set the exam room router's DNS to dns.examguard.in. One change, survives reboots — no laptop, no static IP.
Start the exam
Run the test in ExamGuard Online. Blocking switches on for the exam window and auto-reverts after.
Every device is covered
Phones, tablets and laptops on that Wi-Fi can't reach AI or homework-solver sites for the whole session.
What gets blocked
70+ domains across AI chatbots, homework solvers and bypass routes, including:
- ChatGPT / OpenAI
- Google Gemini
- Claude
- Perplexity
- Microsoft Copilot
- Grok / x.ai
- DeepSeek
- doubtnut
- Chegg
- Photomath
- Course Hero
- Quizlet
- Symbolab
- Brainly
- Gauthmath
- Socratic
- Wolfram Alpha
- DoH / VPN bypass providers
App block vs network block
| ExamGuard Online | ExamGuard Network | |
|---|---|---|
| Covers | the exam device | every device on the Wi-Fi |
| Catches | tab-switch, paste, screenshot, devtools | AI & homework sites at the network |
| Phones | not directly | yes — blocked too |
| Setup | share one link | set router DNS once |
Best together: the app scores behaviour on the exam screen, the network kills AI for the whole room. Belt and suspenders.
FAQ
How do you block AI sites during an exam?
ExamGuard Network is a DNS resolver. You point the exam room's Wi-Fi router at one address (dns.examguard.in); every device that joins that Wi-Fi then asks our resolver for site addresses. During an exam window we refuse to answer for ChatGPT, Gemini, doubtnut, Chegg and 70+ other AI and homework-solver domains, so those sites simply fail to load — for phones, tablets and laptops alike.
Does it work on student phones, not just the exam laptop?
Yes. Because the block happens at the network (DNS) layer, it covers every device on that Wi-Fi, including student phones — not only the laptop running the test. That is the difference between a network block and an app running on a single device.
Is this an open DNS resolver?
No. The resolver only answers your school's own network. It is access-locked to your registered IP, so it is not an open public resolver and cannot be abused by outsiders.
Do students need to install anything?
No. There is no app, no profile and no per-device setup. The only change is the router DNS, made once by the school. Students just connect to the Wi-Fi as usual.
What if a site uses HTTPS or DoH to get around it?
We also block the common DNS-over-HTTPS bypass providers, which is how most phones and browsers try to route around a network DNS block. No tool is perfect, but this closes the easy escapes and is honest about the limits.
Lock down your next exam room.
Start the exam in the browser, block AI on the whole network. Free to try.
Create an exam freeMore: the online exam software overview, or see how it works for colleges and coaching centres.