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dnsspeedtest

A fast, lightweight DNS resolver benchmarking tool written in Rust.

Overview​

dnsspeedtest is a high-performance tool designed to measure the responsiveness and reliability of DNS providers. Built with Rust, it provides accurate benchmarking results, making it an essential utility for network testing and optimization. Whether you're a network engineer or a developer, this tool offers detailed insights into DNS performance.

Key Features​

  • Accurate Benchmarking: Measures DNS query resolution times with precision.
  • Multi-Provider Testing: Compares multiple DNS providers in one session.
  • Custom Queries: Supports user-defined DNS queries for specific testing scenarios.
  • High Performance: Built with Rust for speed and reliability.
  • Lightweight Design: Minimal resource usage, making it ideal for both local and server environments.

Use Cases​

  • Performance Optimization: Identify the fastest DNS provider for your network or application.
  • Network Debugging: Diagnose issues with DNS resolution and optimize configurations.
  • ISP Comparison: Compare DNS performance across different Internet Service Providers.
  • Educational Use: Learn about DNS performance characteristics through hands-on testing.

Features in Action​

1. Multi-Provider Benchmarking​

Quickly benchmark popular DNS providers like Google DNS, Cloudflare, OpenDNS, and more:

  • Tests resolution times for a predefined or custom set of DNS queries.
  • Displays detailed results for easy comparison.

2. Custom Query Testing​

Specify your own DNS queries to test resolution times for specific domains or subdomains:

  • Test latency for application-specific or frequently accessed domains.
  • Measure the impact of DNS cache hits and misses.

3. Performance Metrics​

Gain insights into:

  • Query resolution time (latency).
  • Success rate of queries.
  • Provider reliability under load.

Advanced Options​

  • Batch Testing: Run tests for multiple domains or IPs in one command.
  • Custom Timeout Settings: Adjust timeout thresholds to match network conditions.
  • Output Modes: Export results to JSON or CSV for further analysis or reporting.

Benefits​

  • Network Efficiency: Helps choose the most optimal DNS provider for faster internet access and application performance.
  • Versatility: Suitable for developers, network administrators, and tech enthusiasts.
  • Scalability: Handles small-scale tests and large-scale DNS benchmarks seamlessly.
  • Open Source: Built for community use and contributions.

Example Scenarios​

  1. Improving Website Load Times Compare DNS resolution times for a web application’s primary domain and select the fastest provider.

  2. ISP Performance Validation Evaluate DNS performance across different ISPs to make informed provider decisions.

  3. Optimizing Network Configurations Test custom DNS queries to optimize DNS settings for enterprise networks or home use.

Future Roadmap​

  • Graphical User Interface (GUI): Add a simple interface for non-technical users.
  • Historical Data Storage: Save and visualize benchmarking trends over time.
  • Advanced Analysis: Include geolocation-based DNS performance insights.
  • GitHub Repository: dnsspeedtest on GitHub
  • Documentation: Detailed guides and use cases.
  • Community Discussions: Share your results and contribute to improvements.