View Contact nikolov.cz Details

📋 Contact & Network Overview

  • AROI: nikolov.cz✓ Validated
    • 12 relays, 100% valid, 100% v2
  • Contact: Viktor Nikolov email:vnikolov[]vnikolov.cz url:nikolov.cz proof:dns-rsa ciissversion:2
  • Hash: 504467132b7bd5f0455b505d3f5f8bd1
  • Countries: Czechia Czechia (4) , France France (4) , Germany Germany (4)
Network Summary:
  • Bandwidth Capacity: ~4.27 Gbit/s (2.54 Gbit/s guard, 1.73 Gbit/s middle)
  • Total Data Transferred: 27 PB (0.48% of 5yr network data)
  • Network Influence: 0.49% of overall consensus weight (0.55% guard, 0.86% middle)
  • Network Position: Balanced (12 total relays, 7 guards, 5 middles)

📊 Operator Intelligence

  • Network Diversity: Great, 3 networks (1 rare)
  • Geographic Diversity: Okay, 3 countries (12 relays)
  • Infrastructure Diversity: Poor, 1 platform
  • Bandwidth Capacity Measurements: 12/12 relays measured by authorities
  • Performance Insights: Overall CW/BW: 1798. +39% higher than 1296 network average. 92th percentile with 901 median.
    • Guard CW/BW: 1590. +64% higher than 972 network average. 86th percentile with 934 median.
  • Operational Maturity: Operating since 2022-09-30 (expanded through 2026-01-26)
  • Version Compliance: All, 12 (100%) compliant
    • Version Status: All, 12 (100%) recommended
  • Family Support: 12 Happy Families (100%)

⏰ Relay Reliability

  • Overall Uptime: 30d 98.9% (12 relays), 6mo 99.4% (12 relays), 1y 99.6% (12 relays), 5y 99.4% (6 relays)
    • ✅ No statistical outliers detected - consistent performance across all relays
    • Network Uptime (6mo): 5th Pct: 86%, 25th Pct: 98%, 50th Pct: 99%, Operator: 99%, 75th Pct: 100%, 90th Pct: 100%, 95th Pct: 100%, 99th Pct: 100%
  • Offline: 0 relays
Reliability data available for 12/12 relays, from 2026-10-17 21:00:00 UTC

🚀 Bandwidth Reliability

Operator Performance:
  • Average Relay Throughput: 6mo 171.71 Mbit/s avg (12 relays), 1y 155.24 Mbit/s avg (12 relays), 5y 144.91 Mbit/s avg (6 relays)
    • No bandwidth outliers detected
  • Performance Analysis (6mo):
    • Stability: Great (Coefficient of Variation: 16.4% = 28.09 Mbit/s σ / 171.71 Mbit/s μ)
    • Trend: Growth (+18.9%) for most recent (Aug 16 - Oct 16, 2026) vs least recent (Apr 16 - Jun 16, 2026)
    • Capacity Utilization: 51% of all-time peak capacity (current 6mo avg vs all-time 1yr peak)
Network Comparison:
  • Network Position: Top 25% (75th-95th percentile)
  • Network Contribution: 6mo 2.06 Gbit/s avg (183 days), 1y 1.63 Gbit/s avg (183 days), 5y 831.71 Mbit/s avg (149 days)
Bandwidth Stability: Great (Top 25% most stable), Good (25-50% most stable), Variable (25-50% most stable), Extreme (Bottom 10% most variable)
Reliability data available for 12/12 relays, from 2026-10-17 21:00:00 UTC

🏆 AROI Champion Rankings

3 winning AROI Champions Dashboard categories:

🏷️ Flag Reliability

Flag-specific uptime percentages (1M/6M/1Y/5Y):
🛡️ Stable Operation: 93.7% / 95.9% / 96.0% / 97.1%
⚡ Fast Relay: 98.9% / 99.4% / 99.6% / 99.4%
🟢 Running Operation: 98.9% / 99.4% / 99.6% / 99.4%
🛡️ Entry Guard: 93.1% / 95.8% / 95.3% / 96.3%
📁 Directory Services: 98.9% / 99.4% / 99.6% / 99.4%
Excellent (>99%), Below average (<μ of network), Poor (≥2σ from network μ) , from 2026-10-17 21:00:00 UTC

🚀 Flag Bandwidth Performance

Flag-specific bandwidth averages (6M/1Y/5Y):
🛡️ Entry Guard: 174.71 Mbit/s / 149.72 Mbit/s / 131.95 Mbit/s
⚡ Fast Relay: 171.71 Mbit/s / 155.24 Mbit/s / 144.91 Mbit/s
🟢 Running: 171.71 Mbit/s / 155.24 Mbit/s / 144.91 Mbit/s
🎯 Stable Relay: 174.71 Mbit/s / 149.72 Mbit/s / 131.95 Mbit/s
📋 Version 2 Directory: 171.71 Mbit/s / 155.24 Mbit/s / 144.91 Mbit/s
High performance (>1.5x μ), Below average (<μ of network), Poor (≥2σ from network μ)

Last updated: Sat, 17 Oct 2026 23:06:30 GMT. Refreshed every 30 minutes from the Tor directory authorities via Tor Project's onionoo API.

💡 Want to upgrade to ciissversion:3?

All 12 of your relays validate cleanly on CIISS v2 (RSA fingerprint proofs). The new CIISS v3 spec replaces per-relay RSA proofs with a single shared ed25519 family-id proof — same url, one published file for the whole family.

To migrate, change torrc ContactInfo to:

ciissversion:3 url:nikolov.cz proof:uri-familyid-ed25519

And on a secure host, generate the happy-family key:

tor --keygen-family /path/to/myfamily # then deploy myfamily.secret_family_key to every relay's KeyDir

Publish .public_family_id at /.well-known/tor-relay/ed25519-family-id.txt. Allow ~24h after restarting Tor for Onionoo to refresh family_ids. Full guide: aroivalidator setup guide.

✓ VALIDATED RELAYS (12)

Status Nickname BW Cap (4.27 Gbit/s) Total Data Uptime/Downtime Uptime (1M/6M/1Y/5Y) Flag Uptime (1M/6M/1Y/5Y) IPv4 Flags DNS Family ▾ Country AS Number AS Name Platform First Seen Last Restarted IPv6
✓ TorHet3 (12) 271.53 Mbit/s   ✓ 4.4 PB UP 1w 13h 59m ago 99.4%/99.5%/99.7%/99.3% 96.4%/98.1%/99.0%/97.1% 5.9.14.30 FastGuardRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 4y 1w 1d ago 1w 14h 9m ago 2a01:4f8:160:8410::3
✓ TorHet2 (12) 266.79 Mbit/s   ✓ 4.4 PB UP 1w 13h 59m ago 98.5%/99.5%/99.7%/99.3% Match 5.9.14.25 FastRunningV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 4y 2w 4d ago 1w 14h 9m ago 2a01:4f8:160:8410::2
✓ TorZoner4 (12) 438.35 Mbit/s   ✓ 837 TB UP 21h 58m 15s ago 98.6%/99.7%/99.8%/0.0% Match 37.46.208.212 FastRunningV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 8mo 3w 3d ago 22h 8m 20s ago 2a00:19a0:3:d0:0:252e:d0d4:1
✓ TorZoner2 (12) 407.15 Mbit/s   ✓ 941 TB UP 1d 10h 31m ago 98.9%/99.5%/99.7%/0.0% 92.8%/98.5%/97.6%/— 37.46.208.212 FastGuardRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 8mo 3w 3d ago 1d 10h 41m ago 2a00:19a0:3:d0:0:252e:d0d4:1
✓ TorScale2 (12) 355.92 Mbit/s   ✓ 4.8 PB UP 1w 13h 54m ago 98.6%/99.2%/99.5%/99.5% Match 51.159.195.41 FastRunningV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 2y 9mo 2w ago 1w 14h 4m ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorHet (12) 270.33 Mbit/s   ✓ 4.1 PB UP 1w 13h 59m ago 99.0%/99.5%/99.7%/99.3% 96.8%/99.1%/99.5%/95.4% 5.9.14.25 FastGuardRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 4y 2w 4d ago 1w 14h 9m ago 2a01:4f8:160:8410::2
✓ TorScale (12) 374.54 Mbit/s   ✓ 4.8 PB UP 1w 13h 49m ago 98.7%/99.3%/99.6%/99.0% Match 51.159.195.41 FastRunningV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 3y 7mo 1w ago 1w 13h 59m ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorScale3 (12) 365.80 Mbit/s   ✓ 915 TB UP 1d 19h 43m ago 98.6%/99.3%/99.5%/0.0% —/91.1%/89.3%/— 51.159.195.41 FastGuardRunningStableV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 10mo 4d 4h ago 1d 19h 53m ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorZoner3 (12) 473.29 Mbit/s   ✓ 804 TB UP 1d 9h 39m ago 98.2%/99.5%/99.6%/0.0% 67.4%/94.4%/95.1%/— 37.46.208.212 FastGuardRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 8mo 3w 3d ago 1d 9h 49m ago 2a00:19a0:3:d0:0:252e:d0d4:1
✓ TorHet4 (12) 294.29 Mbit/s   ✓ 4.3 PB UP 1w 13h 59m ago 98.2%/99.3%/99.6%/99.8% Match 5.9.14.30 FastRunningV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 2y 9mo 2w ago 1w 14h 9m ago 2a01:4f8:160:8410::3
✓ TorScale4 (12) 325.55 Mbit/s   ✓ 1.0 PB UP 1w 13h 54m ago 99.9%/99.3%/99.5%/0.0% —/89.3%/88.4%/— 51.159.195.41 FastGuardRunningStableV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 10mo 4d 4h ago 1w 14h 4m ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorZoner (12) 427.61 Mbit/s   ✓ 1.0 PB UP 1w 14h 1m ago 99.6%/99.7%/99.8%/0.0% —/—/98.4%/— 37.46.208.212 FastGuardRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 8mo 3w 3d ago 1w 14h 11m ago 2a00:19a0:3:d0:0:252e:d0d4:1