View Contact Nickolai Zeldovich <nickolai AT csail dot mit dot edu> Details

📋 Contact & Network Overview

Network Summary:
  • Bandwidth Capacity: ~329.11 Mbit/s (329.11 Mbit/s guard)
  • Total Data Transferred: 688 TB (0.01% of 5yr network data)
  • Network Influence: 0.01% of overall consensus weight (0.03% guard)
  • Network Position: Guard-only (4 total relays, 4 guards)

📊 Operator Intelligence

  • Network Diversity: Great, 1 network (epic)
  • Geographic Diversity: Poor, 1 country
  • Infrastructure Diversity: Poor, 1 platform
  • Bandwidth Capacity Measurements: 4/4 relays measured by authorities
  • Performance Insights: Overall CW/BW: 688. -47% lower than 1296 network average. 36th percentile with 933 median.
    • Guard CW/BW: 688. -22% lower than 885 network average. 26th percentile with 1020 median.
  • Operational Maturity: Operating since 2024-05-01 (expanded through 2025-05-19)
  • Version Compliance: All, 4 (100%) compliant
    • Version Status: All, 4 (100%) recommended
  • Family Support: 4 MyFamily (100%)

🚀 Bandwidth Reliability

Operator Performance:
  • Average Relay Throughput: 6mo 14.42 Mbit/s avg (4 relays), 1y 12.83 Mbit/s avg (4 relays), 5y 23.75 Mbit/s avg (2 relays)
    • No bandwidth outliers detected
  • Performance Analysis (6mo):
    • Stability: Great (Coefficient of Variation: 15.9% = 2.29 Mbit/s σ / 14.42 Mbit/s μ)
    • Trend: Growth (+17.1%) for most recent (Jan 13 - Mar 14, 2026) vs least recent (Sep 14 - Nov 13, 2025)
    • Capacity Utilization: 15% of all-time peak capacity (current 6mo avg vs all-time 5yr peak)
Network Comparison:
  • Network Position: Top 50% (50th-75th percentile)
  • Network Contribution: 6mo 57.70 Mbit/s avg (181 days), 1y 47.45 Mbit/s avg (183 days), 5y 47.49 Mbit/s avg (68 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 4/4 relays, from 2026-03-15 12:00:00 UTC

⏰ Relay Reliability

  • Overall Uptime: 30d 100.0% (4 relays), 6mo 100.0% (4 relays), 1y 100.0% (4 relays), 5y 99.9% (2 relays)
    • ✅ No statistical outliers detected - consistent performance across all relays
    • Network Uptime (6mo): 5th Pct: 62%, 25th Pct: 98%, 50th Pct: 100%, 75th Pct: 100%, 90th Pct: 100%, 95th Pct: 100%, 99th Pct: 100%, Operator: 100%
  • Offline: 0 relays
Reliability data available for 4/4 relays, from 2026-03-15 12:00:00 UTC

🏷️ Flag Reliability

Flag-specific uptime percentages (1M/6M/1Y/5Y):
🛡️ Stable Operation: 100.0% / 100.0% / 100.0% / 99.9%
⚡ Fast Relay: 100.0% / 100.0% / 100.0% / 99.9%
🟢 Running Operation: 100.0% / 100.0% / 100.0% / 99.9%
🛡️ Entry Guard: 100.0% / 100.0% / 100.0% / 99.9%
📁 Directory Services: 100.0% / 100.0% / 100.0% / 99.9%
Excellent (>99%), Below average (<μ of network), Poor (≥2σ from network μ) , from 2026-03-15 12:00:00 UTC

🚀 Flag Bandwidth Performance

Flag-specific bandwidth averages (6M/1Y/5Y):
🛡️ Entry Guard: 14.42 Mbit/s / 12.83 Mbit/s / 23.75 Mbit/s
⚡ Fast Relay: 14.42 Mbit/s / 12.83 Mbit/s / 23.75 Mbit/s
🟢 Running: 14.42 Mbit/s / 12.83 Mbit/s / 23.75 Mbit/s
🎯 Stable Relay: 14.42 Mbit/s / 12.83 Mbit/s / 23.75 Mbit/s
📋 Version 2 Directory: 14.42 Mbit/s / 12.83 Mbit/s / 23.75 Mbit/s
High performance (>1.5x μ), Below average (<μ of network), Poor (≥2σ from network μ)

Last updated: Sun, 15 Mar 2026 13:45:53 GMT. Refreshed every 30 minutes from the Tor directory authorities via Tor Project's onionoo API.

Status Nickname BW Cap (329.11 Mbit/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
pdos00 (4) 122.00 Mbit/s   ✓ 303 TB UP 6h 52m 15s ago 100.0%/100.0%/100.0%/100.0% Match 128.52.132.189 FastGuardRunningStableV2DirValid NA MyFamily United States of America US AS3 Unknown Linux 1y 10mo 2w ago 6h 53m 20s ago N/A
pdos01 (4) 76.87 Mbit/s   ✓ 75 TB UP 6h 52m 15s ago 100.0%/100.0%/100.0%/0.0% Match 128.52.132.189 FastGuardRunningStableV2DirValid NA MyFamily United States of America US AS3 Unknown Linux 10mo 11h 46m ago 6h 53m 20s ago N/A
pdos (4) 67.61 Mbit/s   ✓ 385 TB UP 6h 52m 16s ago 100.0%/100.0%/100.0%/99.8% Match 128.52.132.189 FastGuardRunningStableV2DirValid NA MyFamily United States of America US AS3 Unknown Linux 1y 10mo 2w ago 6h 53m 20s ago N/A
pdos02 (4) 62.63 Mbit/s   ✓ 65 TB UP 6h 52m 16s ago 100.0%/100.0%/100.0%/0.0% Match 128.52.132.189 FastGuardRunningStableV2DirValid NA MyFamily United States of America US AS3 Unknown Linux 10mo 11h 46m ago 6h 53m 20s ago N/A