DNS Query Performance Comparison

Compare response times across multiple DNS resolvers to find the fastest for your location

Quick Examples
Advanced Options
Default: 5000ms

Custom DNS servers must be valid IPv4 or IPv6 addresses. Duplicates will be removed automatically.

Why DNS Performance Matters

DNS (Domain Name System) performance directly impacts how fast websites and applications load. Every time you visit a website, your device must first query a DNS resolver to translate the domain name into an IP address. This lookup happens before any content can be downloaded. A slow DNS resolver can add hundreds of milliseconds to every page load, making websites feel sluggish even on fast internet connections. By testing and choosing the fastest resolver for your location, you can significantly improve your browsing experience.

Understanding Your Results

Response times tell you how quickly each resolver can answer queries:

< 20ms Excellent

Barely noticeable delay. Resolver is very close or highly optimized.

20-50ms Good

Fast enough for smooth browsing. Most users won't notice the delay.

50-100ms Acceptable

Noticeable on slow connections. May want to test alternatives.

100-200ms Slow

Adds noticeable delay to page loads. Consider switching resolvers.

> 200ms Very Slow

Significant impact on browsing speed. Definitely switch resolvers.

Public DNS Resolvers

Cloudflare (1.1.1.1)

Privacy-focused, claims to be fastest

Pros
  • Very fast
  • Strong privacy policy
  • No logging
  • Global anycast network
Cons
  • Relatively new (2018)
  • Some ISPs may block it
Best for

Privacy-conscious users wanting speed

Google (8.8.8.8)

Most widely used public resolver

Pros
  • Excellent reliability
  • Fast response times
  • Good global coverage
  • Well-established
Cons
  • Privacy concerns (Google)
  • Logs queries
  • May track usage
Best for

Users prioritizing reliability over privacy

Quad9 (9.9.9.9)

Security and privacy focused

Pros
  • Blocks malware domains
  • No logging
  • Privacy-focused
  • Threat intelligence
Cons
  • Slightly slower than top competitors
  • Blocking may cause issues
Best for

Security-conscious users

OpenDNS (208.67.222.222)

Cisco-owned, customizable filtering

Pros
  • Content filtering options
  • Phishing protection
  • Reliable
  • Dashboard for monitoring
Cons
  • Logs queries
  • Redirects NXDOMAIN
  • Can be slower
Best for

Families wanting content filtering

ControlD (76.76.2.0)

Modern resolver with extensive customization

Pros
  • Highly customizable
  • Multiple blocking lists
  • Fast
  • Detailed analytics
Cons
  • Newer service
  • Some features require account
  • Less proven
Best for

Advanced users wanting control

AdGuard (94.140.14.14)

Ad-blocking DNS service

Pros
  • Blocks ads and trackers
  • Privacy-focused
  • No logging
  • Multiple variants
Cons
  • May break some sites
  • Can be slower
  • Aggressive blocking
Best for

Users wanting ad-blocking at DNS level

Optimizing DNS Performance

Choose the Fastest Resolver for Your Location

Use this tool to test multiple resolvers and pick the consistently fastest one. Geographic proximity usually helps.

Configure DNS at Router Level

Setting DNS at your router applies to all devices on your network and allows router-level caching.

Use Multiple Resolvers

Configure primary and secondary DNS servers. If one fails or is slow, the system fails over to the backup.

Enable DNS Caching

Most operating systems cache DNS results. Ensure caching is enabled to avoid repeated lookups for the same domains.

Consider DNS-over-HTTPS (DoH) or DNS-over-TLS (DoT)

Encrypted DNS prevents ISP snooping but may add slight overhead. Test to see if the privacy benefit is worth it.

Monitor and Retest Periodically

Resolver performance changes over time. Retest quarterly to ensure you're still using the best option.