Fast Mode is a free, modern, and lightweight Internet Speed Test and DNS Benchmark web application that helps users analyze their network performance directly from their browser. Built with HTML5, CSS3, and Vanilla JavaScript, it accurately measures download speed, upload speed, ping (latency), jitter, and compares the performance of popular DNS servers using secure DNS-over-HTTPS (DoH) technology.
Unlike traditional speed test websites, Fast Mode runs entirely in the browser with a clean, responsive interface and requires no extensions or software installation.
🌐 Live Website: https://www.fastmode.top
Measure your internet connection in real time with accurate performance metrics.
- Download Speed Test
- Upload Speed Test
- Ping (Latency) Test
- Jitter Analysis
- Real-time Progress Indicators
- Mobile & Desktop Compatible
Compare the response times of leading public DNS providers to find the fastest DNS server for your internet connection.
Supported DNS providers include:
- Cloudflare DNS (1.1.1.1)
- Google Public DNS (8.8.8.8)
- Quad9 DNS
- OpenDNS
- AdGuard DNS
- CleanBrowsing DNS
- AliDNS
- Comodo Secure DNS
Measurements are performed using secure DNS-over-HTTPS (DoH) requests.
Automatically detect your current network information, including:
- Public IP Address
- Internet Service Provider (ISP)
- Approximate Location
- Connection Details
Fast Mode also includes educational resources covering:
- What is Internet Speed?
- What is Ping?
- What is Jitter?
- DNS Explained
- Mbps vs MB/s
- How to Improve Wi-Fi Speed
- Best DNS Servers for Gaming
- Network Troubleshooting Tips
- Completely Free
- No Registration Required
- No Software Installation
- Lightweight & Fast
- Modern Responsive UI
- Privacy Friendly
- Cross-Platform
- SEO Optimized
- Mobile Friendly
- HTML5
- CSS3
- Vanilla JavaScript (ES6+)
- Fetch API
- DNS-over-HTTPS (DoH)
- REST APIs
Internet Speed Test, Speed Test, Online Speed Test, WiFi Speed Test, Broadband Speed Test, Upload Speed Test, Download Speed Test, Ping Test, Latency Test, Jitter Test, DNS Benchmark, DNS Speed Test, DNS Checker, Public DNS, Cloudflare DNS, Google DNS, Network Diagnostics, Network Analyzer, Internet Performance Test, Network Speed Monitor, DNS-over-HTTPS, DoH, ISP Checker, IP Address Lookup, JavaScript Speed Test, HTML5 Speed Test, Web Speed Test, Fast Internet Test.
Visit the live application:
Contributions, feature requests, and bug reports are welcome. Feel free to fork the project, open an issue, or submit a pull request.
This project is licensed under the MIT License.
If you find Fast Mode useful, please consider giving this repository a ⭐ on GitHub. Your support helps improve the project and makes it easier for others to discover.