When you type a URL into your browser, the very first step is DNS resolution: turning a human‑friendly domain name into an IP address. That lookup might seem trivial, but it’s often the hidden bottleneck in network performance. A slow resolver can add hundreds of milliseconds to every request — multiplied across thousands of requests, that’s real lag.
That’s why I built DNS Benchmark Tool, a lightweight CLI utility now published on PyPI. In just 5 days since release, it’s already been downloaded over 1,100 times — proof that developers, sysadmins, and self‑hosters care about DNS speed.
🔎 Why DNS benchmarking matters
- Performance: Faster resolvers mean snappier websites and APIs.
- Reliability: Some resolvers drop queries or fail under load.
- Privacy: Choosing the right resolver can reduce tracking and improve security.
- Self‑hosting: Tools like Pi‑hole or Unbound need benchmarking to prove they’re competitive with public resolvers like Google (8.8.8.8) or Cloudflare (1.1.1.1).
🛠️ What the tool does
- Benchmarks multiple DNS resolvers side‑by‑side.
- Reports latency, success rate, and consistency.
- Simple CLI interface — install and run in seconds.
- Works cross‑platform (Linux, macOS, Windows).
Install it with:
pip install dns-benchmark-tool
Quick usage
# Benchmark with default resolvers and domains
dns-benchmark benchmark --use-defaults
# Custom resolvers and domains
dns-benchmark benchmark --resolvers data/resolvers.json --domains data/domains.txt
📈 Recent milestone
- Current version: v0.2.8
- Downloads: 1,100+ in 5 days
- Growing interest across Python, DevOps, and networking communities.
🌍 Who should try it
- Developers: Optimize API calls and reduce latency.
- Sysadmins/DevOps: Validate resolver performance in production.
- Self‑hosters: Compare Pi‑hole/Unbound against public resolvers.
- Networking enthusiasts: Experiment with DNS speed across ISPs.
🔗 Links
- GitHub: https://github.com/frankovo/dns-benchmark-tool
- PyPI: https://pypi.org/project/dns-benchmark-tool/
- Feedback Survey: https://forms.gle/BJBiyBFvRJHskyR57
✨ Next steps: I’d love feedback, benchmarks from different regions, and ideas for new features. If you try it out, share your results — let’s make DNS resolution faster for everyone.
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