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) , Germany Germany (4) , France France (4)
Network Summary:
  • Bandwidth Capacity: ~4.03 Gbit/s (3.27 Gbit/s guard, 0.76 Gbit/s middle)
  • Total Data Transferred: 26 PB (0.41% of 5yr network data)
  • Overloaded: 41.7% (5 of 12 relays)
  • Network Influence: 0.34% of overall consensus weight (0.46% guard, 0.66% middle)
  • Network Position: Guard-focused (12 total relays, 8 guards, 4 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: 1540. +22% higher than 1259 network average. 84th percentile with 793 median.
    • Guard CW/BW: 1483. +49% higher than 993 network average. 80th percentile with 844 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 99.0% (12 relays), 6mo 99.7% (12 relays), 1y 99.8% (12 relays), 5y 99.4% (6 relays)
    • ✅ No statistical outliers detected - consistent performance across all relays
    • Network Uptime (6mo): 5th Pct: 84%, 25th Pct: 98%, 50th Pct: 100%, Operator: 100%, 75th Pct: 100%, 90th Pct: 100%, 95th Pct: 100%, 99th Pct: 100%
  • Offline: 0 relays
Reliability data available for 12/12 relays, from 2026-08-23 18:00:00 UTC

🚀 Bandwidth Reliability

Operator Performance:
  • Average Relay Throughput: 6mo 152.64 Mbit/s avg (12 relays), 1y 145.08 Mbit/s avg (12 relays), 5y 144.33 Mbit/s avg (6 relays)
    • No bandwidth outliers detected
  • Performance Analysis (6mo):
    • Stability: Great (Coefficient of Variation: 18.2% = 27.83 Mbit/s σ / 152.64 Mbit/s μ)
    • Trend: Growth (+20.8%) for most recent (Jun 23 - Aug 22, 2026) vs least recent (Feb 22 - Apr 23, 2026)
    • Capacity Utilization: 46% 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 1.83 Gbit/s avg (181 days), 1y 1.42 Gbit/s avg (183 days), 5y 826.48 Mbit/s avg (143 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 2026-08-23 18:00:00 UTC

🏆 AROI Champion Rankings

2 winning AROI Champions Dashboard categories:

🏷️ Flag Reliability

Flag-specific uptime percentages (1M/6M/1Y/5Y):
🛡️ Stable Operation: 99.6% / 99.8% / 99.8% / 97.9%
⚡ Fast Relay: 99.0% / 99.7% / 99.8% / 99.4%
🟢 Running Operation: 99.0% / 99.7% / 99.8% / 99.4%
🛡️ Entry Guard: 99.6% / 99.8% / 98.9% / 97.3%
📂 Hidden Services: 57.9% / 73.1% / 74.3% / 79.8%
📁 Directory Services: 99.0% / 99.7% / 99.8% / 99.4%
Excellent (>99%), Below average (<μ of network), Poor (≥2σ from network μ) , from 2026-08-23 18:00:00 UTC

🚀 Flag Bandwidth Performance

Flag-specific bandwidth averages (6M/1Y/5Y):
🛡️ Entry Guard: 138.16 Mbit/s / 134.29 Mbit/s / 132.47 Mbit/s
⚡ Fast Relay: 152.64 Mbit/s / 145.08 Mbit/s / 144.33 Mbit/s
🟢 Running: 152.64 Mbit/s / 145.08 Mbit/s / 144.33 Mbit/s
📁 Hidden Service Directory: 138.16 Mbit/s / 134.29 Mbit/s / 132.47 Mbit/s
🎯 Stable Relay: 138.16 Mbit/s / 134.29 Mbit/s / 132.47 Mbit/s
📋 Version 2 Directory: 152.64 Mbit/s / 145.08 Mbit/s / 144.33 Mbit/s
High performance (>1.5x μ), Below average (<μ of network), Poor (≥2σ from network μ)

Last updated: Mon, 24 Aug 2026 00:03:03 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 (4.03 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
✓ TorHet (12) 407.71 Mbit/s   ✓ 3.9 PB UP 1mo 3w 6d ago 99.7%/99.7%/99.8%/99.3% —/—/—/95.3% 5.9.14.25 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 3y 10mo 4w ago 1mo 3w 6d ago 2a01:4f8:160:8410::2
✓ TorHet2 (12) 273.91 Mbit/s   ✓ 4.2 PB UP 1mo 3w 6d ago 99.3%/99.7%/99.8%/99.3% —/—/—/97.0% 5.9.14.25 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 3y 10mo 4w ago 1mo 3w 6d ago 2a01:4f8:160:8410::2
✓ TorHet3 (12) 264.12 Mbit/s   ✓ 4.2 PB UP 1mo 3w 6d ago 99.6%/99.8%/99.9%/99.3% —/—/—/97.2% 5.9.14.30 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 3y 10mo 2w ago 1mo 3w 6d ago 2a01:4f8:160:8410::3
✓ TorHet4 (12) 326.60 Mbit/s   ✓ 4.1 PB UP 1mo 3w 6d ago 99.7%/99.7%/99.8%/99.8% Match 5.9.14.30 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 2y 7mo 3w ago 1mo 3w 6d ago 2a01:4f8:160:8410::3
✓ TorScale (12) 192.46 Mbit/s   ✓ 4.6 PB UP 1w 1d 6h ago 98.1%/99.6%/99.7%/99.0% Match 51.159.195.41 FastRunningV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 3y 5mo 2w ago 1w 1d 6h ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorScale2 (12) 192.71 Mbit/s   ✓ 4.7 PB UP 1w 1d 6h ago 97.8%/99.5%/99.7%/99.6% Match 51.159.195.41 FastRunningV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 2y 7mo 3w ago 1w 1d 6h ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorScale3 (12) 204.25 Mbit/s   ✓ 711 TB UP 1w 1d 6h ago 98.0%/99.5%/99.5%/0.0% Match 51.159.195.41 FastRunningV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 8mo 1w 2d ago 1w 1d 6h ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorScale4 (12) 169.11 Mbit/s   ✓ 831 TB UP 1w 1d 6h ago 98.0%/99.5%/99.5%/0.0% Match 51.159.195.41 FastRunningV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 8mo 1w 2d ago 1w 1d 6h ago 2001:bc8:1201:512:da5e:d3ff:fe6c:8241
✓ TorZoner (12) 481.97 Mbit/s   ✓ 683 TB UP 4d 18h 59m ago 99.3%/99.8%/99.9%/0.0% —/—/98.1%/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 6mo 4w 1d ago 4d 19h 6m ago 2a00:19a0:3:d0:0:252e:d0d4:1
✓ TorZoner2 (12) 514.95 Mbit/s   ✓ 611 TB UP 2w 2d 2h ago 99.5%/99.8%/99.8%/0.0% —/—/98.0%/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 6mo 4w 1d ago 2w 2d 2h ago 2a00:19a0:3:d0:0:252e:d0d4:1
✓ TorZoner3 (12) 619.27 Mbit/s   ✓ 520 TB UP 4d 18h 6m ago 99.6%/99.9%/99.9%/0.0% —/—/98.1%/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 6mo 4w 1d ago 4d 18h 13m ago 2a00:19a0:3:d0:0:252e:d0d4:1
✓ TorZoner4 (12) 379.99 Mbit/s   ✓ 528 TB UP 1mo 22h 2m ago 99.7%/99.9%/99.9%/0.0% —/—/98.1%/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 6mo 4w 1d ago 1mo 22h 9m ago 2a00:19a0:3:d0:0:252e:d0d4:1