View Contact Nickolai Zeldovich <nickolai AT csail dot mit dot edu> Details
📋 Contact & Network Overview
- Contact: Nickolai Zeldovich <nickolai AT csail dot mit dot edu>
- Hash: 93fef766c4eea9dff7737eca1d6b50cb
- Countries:
United States of America (4)
Network Summary:
- Bandwidth: ~274.62 Mbit/s (274.62 Mbit/s guard)
- Network Influence: 0.01% of overall consensus weight (0.02% guard)
- Network Position: Guard-only (4 total relays, 4 guards)
📊 Operator Intelligence
- Network Diversity: Poor, 1 network
- Geographic Diversity: Poor, 1 country
- Infrastructure Diversity: Poor, 1 platform, 1 version
- Bandwidth Measurements: 4/4 relays measured by authorities
- Performance Insights: Overall CW/BW: 676. -45% lower than 1231 network average. 39th percentile with 900 median.
- Guard CW/BW: 676. -18% lower than 824 network average. 29th percentile with 988 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
⏰ 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: 68%, 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 2025-12-07 08:00:00 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%
📂 Hidden Services:
52.9% / 61.7% / 66.1% / 70.1%
📁 Directory Services:
100.0% / 100.0% / 100.0% / 99.9%
Green: >99%,
Yellow: <μ of network,
Red: ≥2σ from network μ
, from 2025-12-07 08:00:00 UTC
Last updated: Sun, 07 Dec 2025 10:04:25 GMT. Refreshed every 30 minutes from the Tor directory authorities via Tor Project's onionoo API.
| Nickname | BW (274.62 Mbit/s) | Uptime/Downtime | Uptime (1M/6M/1Y/5Y) | Flag Uptime (1M/6M/1Y/5Y) | IPv4 | Flags | Country | AS Number | AS Name | Platform | First Seen | Last Restarted | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pdos01 (4) | 77.22 Mbit/s ✓ | UP 1w 3d 3h ago | 100.0%/100.0%/100.0%/0.0% | Match | 128.52.132.189 |
|
US
|
AS3 | Unknown | Linux | 6mo 3w 1d ago | 1w 3d 3h ago | |
| pdos00 (4) | 69.28 Mbit/s ✓ | UP 1w 3d 3h ago | 100.0%/100.0%/100.0%/100.0% | Match | 128.52.132.189 |
|
US
|
AS3 | Unknown | Linux | 1y 7mo 1w ago | 1w 3d 3h ago | |
| pdos (4) | 65.31 Mbit/s ✓ | UP 1w 3d 3h ago | 100.0%/100.0%/100.0%/99.8% | Match | 128.52.132.189 |
|
US
|
AS3 | Unknown | Linux | 1y 7mo 1w ago | 1w 3d 3h ago | |
| pdos02 (4) | 62.80 Mbit/s ✓ | UP 1w 3d 3h ago | 100.0%/100.0%/100.0%/0.0% | Match | 128.52.132.189 |
|
US
|
AS3 | Unknown | Linux | 6mo 3w 1d ago | 1w 3d 3h ago |