View Contact nikolov.cz Details

📋 Contact & Network Overview

Network Summary:
  • Bandwidth Capacity: ~3.88 Gbit/s (3.88 Gbit/s guard)
  • Total Data Transferred: 24 PB (0.39% of 5yr network data)
  • Network Influence: 0.32% of overall consensus weight (0.56% guard)
  • Network Position: Guard-only (12 total relays, 12 guards)

📊 Operator Intelligence

  • Network Diversity: Great, 3 networks (1 rare)
  • Geographic Diversity: Okay, 3 countries
  • Infrastructure Diversity: Poor, 1 platform
  • Bandwidth Capacity Measurements: 12/12 relays measured by authorities
  • Performance Insights: Overall CW/BW: 1267. +8% higher than 1169 network average. 75th percentile with 893 median.
    • Guard CW/BW: 1267. +43% higher than 884 network average. 73th percentile with 974 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 100.0% (12 relays), 6mo 99.9% (12 relays), 1y 99.9% (6 relays), 5y 99.4% (6 relays)
    • ✅ No statistical outliers detected - consistent performance across all relays
    • Network Uptime (6mo): 5th Pct: 71%, 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 2026-05-27 07:00:00 UTC

🚀 Bandwidth Reliability

Operator Performance:
  • Average Relay Throughput: 6mo 129.95 Mbit/s avg (12 relays), 1y 159.34 Mbit/s avg (6 relays), 5y 143.80 Mbit/s avg (6 relays)
  • Performance Analysis (6mo):
    • Stability: Good (Coefficient of Variation: 33.4% = 43.42 Mbit/s σ / 129.95 Mbit/s μ)
    • Trend: Decline (-8.3%) for most recent (Mar 25 - May 24, 2026) vs least recent (Nov 24 - Jan 23, 2026)
    • Capacity Utilization: 51% of all-time peak capacity (current 6mo avg vs all-time 1yr peak)
    • Bandwidth Outliers: 1 relay with unusual bandwidth patterns, High: TorScale2
Network Comparison:
  • Network Position: Top 25% (75th-95th percentile)
  • Network Contribution: 6mo 1.41 Gbit/s avg (181 days), 1y 956.02 Mbit/s avg (183 days), 5y 821.15 Mbit/s avg (134 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 2026-05-27 07:00:00 UTC

🏆 AROI Champion Rankings

3 winning AROI Champions Dashboard categories:

🏷️ Flag Reliability

Flag-specific uptime percentages (1M/6M/1Y/5Y):
🛡️ Stable Operation: 100.0% / 98.4% / 99.9% / 97.0%
⚡ Fast Relay: 100.0% / 99.9% / 99.9% / 99.4%
🟢 Running Operation: 100.0% / 99.9% / 99.9% / 99.4%
🛡️ Entry Guard: 100.0% / 97.5% / 99.9% / 96.6%
📂 Hidden Services: 72.6% / 80.4% / 84.4% / 82.5%
📁 Directory Services: 100.0% / 99.9% / 99.9% / 99.4%
Excellent (>99%), Below average (<μ of network), Poor (≥2σ from network μ) , from 2026-05-27 07:00:00 UTC

🚀 Flag Bandwidth Performance

Flag-specific bandwidth averages (6M/1Y/5Y):
🛡️ Entry Guard: 129.95 Mbit/s / 159.34 Mbit/s / 143.80 Mbit/s
⚡ Fast Relay: 129.95 Mbit/s / 159.34 Mbit/s / 143.80 Mbit/s
🟢 Running: 129.95 Mbit/s / 159.34 Mbit/s / 143.80 Mbit/s
📁 Hidden Service Directory: 129.95 Mbit/s / 159.34 Mbit/s / 143.80 Mbit/s
🎯 Stable Relay: 129.95 Mbit/s / 159.34 Mbit/s / 143.80 Mbit/s
📋 Version 2 Directory: 129.95 Mbit/s / 159.34 Mbit/s / 143.80 Mbit/s
High performance (>1.5x μ), Below average (<μ of network), Poor (≥2σ from network μ)

Last updated: Wed, 27 May 2026 08:45:43 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.

📋 Issues Across This Operator's Relays (9 affected)

Issue Affected relays
Transport error 9

See per-relay details with pasteable fix examples in the sections below.

✓ VALIDATED RELAYS (3)

Status Nickname BW Cap (3.88 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
✓ TorHet2 (12) 326.39 Mbit/s   ✓ 3.9 PB UP 6d 22h 29m ago 100.0%/100.0%/100.0%/99.3% —/—/—/96.9% 5.9.14.25 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 3y 8mo 8h ago 6d 22h 30m ago N/A
✓ TorHet3 (12) 296.35 Mbit/s   ✓ 3.9 PB UP 6d 22h 29m ago 100.0%/100.0%/100.0%/99.3% —/—/—/97.1% 5.9.14.30 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 3y 7mo 2w ago 6d 22h 30m ago N/A
✓ TorZoner4 (12) 292.71 Mbit/s   ✓ 212 TB UP 6d 22h 43m ago 100.0%/100.0%/0.0%/0.0% —/97.6%/—/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 4mo 14h 46m ago 6d 22h 44m ago N/A

⚠ MISCONFIGURED RELAYS (9)

Status Nickname BW Cap (3.88 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
⚠ TorZoner (12) 395.44 Mbit/s   ✓ 254 TB UP 6d 22h 43m ago 100.0%/100.0%/0.0%/0.0% —/97.7%/—/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 4mo 14h 46m ago 6d 22h 44m ago N/A
⚠ TorScale2 (12) 361.73 Mbit/s   ✓ 4.3 PB UP 6d 22h 27m ago 100.0%/99.8%/99.9%/99.6% —/—/—/96.2% 51.159.195.41 FastGuardHSDirRunningStableV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 2y 2w 1d ago 6d 22h 28m ago N/A
⚠ TorScale4 (12) 359.83 Mbit/s   ✓ 464 TB UP 6d 22h 27m ago 100.0%/99.8%/0.0%/0.0% —/90.3%/—/— 51.159.195.41 FastGuardHSDirRunningStableV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 5mo 1w 3d ago 6d 22h 28m ago N/A
⚠ TorZoner2 (12) 354.57 Mbit/s   ✓ 267 TB UP 6d 22h 43m ago 100.0%/100.0%/0.0%/0.0% —/97.6%/—/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 4mo 14h 46m ago 6d 22h 44m ago N/A
⚠ TorScale (12) 354.54 Mbit/s   ✓ 4.2 PB UP 6d 22h 27m ago 100.0%/99.8%/99.9%/99.0% —/—/—/94.6% 51.159.195.41 FastGuardHSDirRunningStableV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 3y 2mo 2w ago 6d 22h 28m ago N/A
⚠ TorScale3 (12) 302.81 Mbit/s   ✓ 387 TB UP 6d 22h 27m ago 100.0%/99.8%/0.0%/0.0% —/89.9%/—/— 51.159.195.41 FastGuardHSDirRunningStableV2DirValid NA Happy Families France FR AS12876 Scaleway SAS Linux 5mo 1w 3d ago 6d 22h 28m ago N/A
⚠ TorHet (12) 297.90 Mbit/s   ✓ 3.7 PB UP 6d 22h 29m ago 100.0%/100.0%/100.0%/99.3% —/—/—/95.0% 5.9.14.25 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 3y 8mo 8h ago 6d 22h 30m ago N/A
⚠ TorHet4 (12) 293.94 Mbit/s   ✓ 3.9 PB UP 6d 22h 29m ago 100.0%/100.0%/100.0%/99.9% Match 5.9.14.30 FastGuardHSDirRunningStableV2DirValid NA Happy Families Germany DE AS24940 Hetzner Online GmbH Linux 1y 8mo 8h ago 6d 22h 30m ago N/A
⚠ TorZoner3 (12) 242.16 Mbit/s   ✓ 208 TB UP 6d 22h 43m ago 100.0%/100.0%/0.0%/0.0% —/97.6%/—/— 37.46.208.212 FastGuardHSDirRunningStableV2DirValid NA Happy Families Czechia CZ AS34222 ZONER a.s. Linux 4mo 14h 46m ago 6d 22h 44m ago N/A
⚠️ MISCONFIGURED RELAY DETAILS

These relays have AROI configured but validation failed due to errors.

Validation data last updated: 2026-05-27 01:00 UTC

  • TorZoner v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out.. Used domain cache after 5 attempts. • Proof: dns-rsa • FP: F4ADC09DDE6768ECBF701612469142EABE7AFCC6
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorScale2 v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out. • Proof: dns-rsa • FP: 56909EDCDFFC04AA38593466F51F3FB2AC63414C
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorScale4 v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out.. Used domain cache after 5 attempts. • Proof: dns-rsa • FP: D7078D13C7799B2A1D788CCF1D43E06DEA67BF2D
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorZoner2 v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out. • Proof: dns-rsa • FP: 3A56376BB965825539D9BBF2E409F316CE57A22E
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorScale v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out.. Used domain cache after 5 attempts. • Proof: dns-rsa • FP: B7B35AFD69A1F8C0453A45FDC92B28824F34F402
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorScale3 v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out.. Used domain cache after 5 attempts. • Proof: dns-rsa • FP: B95A8A85310362945DD0F2D184CC2A50AC875492
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorHet v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out.. Used domain cache after 4 attempts. • Proof: dns-rsa • FP: 778DCB9DB6CDD5FF2F1A85571308B492D6DFF962
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorHet4 v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out.. Used domain cache after 5 attempts. • Proof: dns-rsa • FP: D245932673168094C492D5155F64699E251703E9
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors
  • TorZoner3 v2 • DNS-RSA: Lookup failed: The resolution lifetime expired after 5.002 seconds: Server Do53:8.8.8.8@53 answered The DNS operation timed out.; Server Do53:1.1.1.1@53 answered The DNS operation timed out.; Server Do53:8.8.8.8@53 answered The DNS operation timed out.. Used domain cache after 5 attempts. • Proof: dns-rsa • FP: CF6DBE7694EDD7216612EA9CA3F1169E7D2A837F
    📋 Paste: curl -v https://nikolov.cz/.well-known/tor-relay/rsa-fingerprint.txt # check for SSL/timeout/refused/HTTP errors

💡 Fix: Check DNS records, renew SSL certificates, or verify server connectivity.
📖 See the AROI Specification for guidance.