DNS Advanced Capabilities

Performance & concurrency

net-benchmark dns benchmark \
  --max-concurrent 200 \
  --iterations 5 \
  --timeout 3.0 \
  --warmup

  • Async I/O with dnspython — test 100+ resolvers simultaneously

  • Trio framework support — high-concurrency async operations

  • Configurable concurrency — --max-concurrent

  • Retry logic — exponential backoff for failed queries

  • Cache simulation — --use-cache

  • Multi-iteration benchmarks — --iterations N

  • Warmup phase — --warmup / --warmup-fast

  • Statistical analysis — mean, median, P95, P99, jitter, consistency scores

Best practices

Mode

Recommended flags

Purpose

Quick Run

--iterations 1 --timeout 1 --retries 0 --warmup-fast

Fast feedback, minimal retries, lightweight warmup

Thorough Run

--iterations 3 --use-cache --warmup --timeout 5 --retries 2

Multiple passes, cache enabled, full warmup

Debug Mode

--iterations 1 --timeout 10 --retries 0 --quiet

Long timeout, no retries, minimal output

Balanced Run

--iterations 2 --use-cache --warmup-fast --timeout 2 --retries 1

Middle ground

Security & privacy features

# Test DoH resolvers
net-benchmark dns benchmark \
  --doh \
  --resolvers doh-providers.json \
  --dnssec-validate

  • DNSSEC validation — verify cryptographic trust chains

  • DNS-over-HTTPS (DoH)

  • DNS-over-TLS (DoT)

  • DNS-over-QUIC (DoQ) — experimental

  • TSIG authentication (coming soon)

  • EDNS0 support

Enterprise & migration features

# Validate DNS migration
net-benchmark dns benchmark \
  --resolvers old-provider.json,new-provider.json \
  --output migration-report/ \
  --formats pdf,excel

  • Zone transfers (AXFR/IXFR) (coming soon)

  • Dynamic DNS updates (coming soon)

  • EDNS0 support — extended DNS options, client subnet, larger payloads

  • Windows WMI integration — auto-detect active system DNS settings

  • Compliance reporting — generate audit-ready PDF/Excel reports

  • SLA validation — track uptime and performance thresholds

Analysis & reporting features

# Detailed analysis
net-benchmark dns benchmark \
  --use-defaults \
  --domain-stats \
  --record-type-stats \
  --error-breakdown \
  --formats csv,excel,pdf

  • Per-domain statistics

  • Per-record-type stats — compare A, AAAA, MX, TXT, etc.

  • Error breakdown — categorize and count error types

  • Comparison matrices — side-by-side resolver comparisons

  • Trend analysis — performance over time (with multiple runs)

  • Best-by-criteria — find best resolver by latency/reliability/consistency

Internationalization & compatibility

# Test internationalized domains
net-benchmark dns benchmark \
  --domains international-domains.txt \
  --record-types A,AAAA,MX \
  --resolvers custom-resolvers.json

  • IDNA support (coming soon)

  • Multiple record types — A, AAAA, MX, TXT, CNAME, NS, SOA, PTR, SRV, CAA

  • Cross-platform — Linux, macOS, Windows

  • CI/CD integration — JSON output, proper exit codes, quiet mode

Performance optimization

# Large-scale testing (1000+ queries)
net-benchmark dns benchmark \
  --resolvers data/many_resolvers.json \
  --domains data/many_domains.txt \
  --max-concurrent 50 \
  --timeout 3 \
  --quiet \
  --formats csv

# Unstable networks
net-benchmark dns benchmark \
  --resolvers data/backup_resolvers.json \
  --domains data/critical_domains.txt \
  --timeout 10 \
  --retries 3 \
  --max-concurrent 10

# Quick diagnostics
net-benchmark dns benchmark \
  --resolvers "1.1.1.1,8.8.8.8" \
  --domains "google.com,cloudflare.com" \
  --formats csv \
  --quiet \
  --timeout 2

Troubleshooting

# Command not found
pip install -e .
python -m net_benchmark.dns_benchmark.cli --help

# PDF generation fails (Ubuntu/Debian)
sudo apt-get install libcairo2 libpango-1.0-0 libpangocairo-1.0-0 \
  libgdk-pixbuf2.0-0 libffi-dev shared-mime-info
# Or skip PDF
net-benchmark dns benchmark --use-defaults --formats csv,excel

# Network timeouts
net-benchmark dns benchmark --use-defaults --timeout 10 --retries 3
net-benchmark dns benchmark --use-defaults --max-concurrent 25

Debug mode:

# Verbose run
python -m net_benchmark.dns_benchmark.cli benchmark --use-defaults --formats csv

# Minimal configuration
net-benchmark dns benchmark --resolvers "1.1.1.1" --domains "google.com" --formats csv

Upcoming features

Flag

Description

--zone-transfer

AXFR/IXFR zone transfer testing

--tsig

TSIG-authenticated queries

--idna

Internationalized domain name support