---
title: "System requirements"
slug: "system-requirements"
tags: ["admin", "candidate", "Proctorio", "Safe Exam Browser"]
updated: 2026-05-28T11:29:17Z
published: 2026-05-28T11:29:17Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.cirrusassessment.com/llms.txt
> Use this file to discover all available pages before exploring further.

# System Requirements

Cirrus supports **all supported modern "Evergreen Browsers"**: Chrome, Firefox, Edge, and Safari, as well as Safe Exam Browser. This applies to any vendor-supported operating system with a screen large enough to display Cirrus without scrolling. Evergreen Browser vendors support only the latest version of their browser.

## Software requirements

              GDPR and supported software/security updates

              

Under the GDPR, it is the responsibility of the customer to ensure that all its users access the Cirrus Platform using supported software with security updates applied.

| Browser | Version | Auto-Update | Cirrus Support Policy |
| --- | --- | --- | --- |
| Chrome | Latest | Yes | Any version supported by Google |
| Safari on MacOS | Latest | Yes | Any version supported by Apple |
| Edge | Latest | Yes | Any version supported by Microsoft |
| Firefox | Latest | Yes | Any version supported by Mozilla |
| [Safe Exam Browser for Windows (SEB)](https://help.cirrusassessment.com/api/docs/safe-exam-browser-tech) | Minimum 3.9 | No | [Cirrus supports SEB version 3.9 and higher for Windows](https://help.cirrusassessment.com/api/docs/safe-exam-browser-tech#safe-exam-browser-support-policy) |

**Note: JavaScript must be enabled.**

              Chrome and Edge for Proctoring

              

The Proctoring add-on and Proctoring partners support only Chromium-based browsers: Chrome and Edge.

              Browser Check for Candidates

              

Cirrus offers candidates a browser check on the introduction page of their exam.

| Operating System | Version | Auto-Update | Support Policy |
| --- | --- | --- | --- |
| Windows | 10, 11 | Yes | Any version supported by Microsoft |
| MacOS | 14+ Sonoma | Yes | Any version supported by Apple |

## Hardware requirements

| Hardware | Minimum | Remarks |
| --- | --- | --- |
| Screen resolution | 1440x900 | Required for usability |
| Processor (CPU) | 1.5GHz | Recommended for usability |
| Memory (RAM) | 3 GB | Recommended for usability |
| Free Disk Space | 250 MB | Recommended for usability; required for Proctoring |

              Microphone / Webcam

              

The Proctoring add-on and Proctoring partners additionally require a microphone and webcam. For Proctorio system requirements, see the [Proctorio requirements page](https://proctorio.com/support/requirements).

## Network requirements

| Network | Minimum | Support Policy |
| --- | --- | --- |
| Average Internet Speed | 1 MBps per candidate | Required for usability |
| Availability | At start and end of exam | Cirrus supports offline periods so the candidate can continue while offline. |
| HTTPS | Port 443 open for TLS 1.2+ | Required for security. Note: TLS 1.2 and RSA are deprecated ([AWS Test](https://good.sca3a.amazontrust.com/)). |

              Audio / Video

              

If your exams use audio and (HD) video, allow additional bandwidth based on your content.

## Security and integrity requirements

Cirrus has many security features built in, such as PIN codes to start an assessment, randomised answer options, and Blueprint-based question selection.

For additional security and integrity, Cirrus offers an Online Proctoring add-on and integrates with Proctoring partners providing live and automated proctoring. A low-cost option for controlled environments is the open-source [Safe Exam Browser](/docs/safe-exam-browser).