View Relay "ephemer5"

Fingerprint: 2427E37429BD1E5EE094BDDF417D1D2BE2A2C803 | Family: 2 relays | Steven Murdoch... | AS786 | United Kingdom of Great Britain and Northern Ireland | Linux

Health Status

Consensus
In Consensus (8/8 Directory Auths)
Flags
Running, Valid, V2Dir, Fast, Stable, Guard (6)
BW Verified
5/5 BW Auths Measured 80 Kbit/s Median
Stability
Not Overloaded | UP 1d 20h 16m ago | UP 96% (1M)
Reachability
IPv4: 8/9 | v6: 7/8 (Directory Auths)
First Seen
3w 1d 14h ago
BW Weight
0.01% of Network | 101 Mbit/s Observed By Relay
Version
0.4.9.6 Recommended
Issues Detected:
  • HSDir: WFU below threshold : WFU 97.4% below 98% required for HSDir
    Suggestion: HSDir requires ≥98% WFU, Stable flag, and Time Known ≥25 hours (or ~10 days for moria1). Improve uptime consistency.
  • High consensus weight deviation : Large variation in Consensus Weight values across authorities (see 'Cons Wt' column in Per-Authority Details below)
    Suggestion: Consensus weight measurements vary significantly between authorities. This can affect traffic distribution. Ensure stable network connection and consistent bandwidth availability.
Notes:
  • Partial IPv4 reachability: 8/9 authorities can reach this relay

Connectivity and Location

Addresses
OR Address
ephemer.cl.cam.ac.uk
128.232.113.47:9001
[2a05:b400:110:1199:a6bf:1ff:fe25:b961]:9001
Reachability (Directory Authorities)
IPv4
8/9
IPv6
7/8 (1 don't test)
Location
Country
United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
Interactive Map
View in RouteFluxMap
Autonomous System
AS Number
AS786
AS Name
Jisc Services Limited (BGP.tools)
AS Rarity
Legendary (score: 4/5, <0.05% consensus weight, 2 operators)

Flags and Eligibility

Current Flags (6): Running, Valid, V2Dir, Fast, Stable, Guard
Eligible Flags (6): Running: 8/8 | Valid: 8/8 | V2Dir: 8/8 | Fast: 8/8 | Stable: 8/8 | HSDir: 0/8 | Guard: 5/8 | Exit: 0/8
Eligibility Flag Vote Details
Flag Metric Status Relay Value Threshold Required
Running IPv4 Reachability Meets (8/8 DA) 8/8 authorities reached relay ≥5/8 DA ORPort reachable
IPv6 Reachability Meets (7/7 DA) 7/7 tested authorities reached relay ≥4/7 tested (majority) (≥4/7 DA)
Valid Descriptor Meets (8/8 DA) 8/8 authorities assigned Valid Not blacklisted + valid descriptor (≥5/8 DA)
V2Dir DirPort Available Meets (8/8 DA) Tunnelled: Yes (no DirPort) (R) Tunnelled directory via ORPort or DirPort (≥5/8 DA)
Fast Speed Meets (8/8 DA) 102.0 Mbit/s (R) ≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/8 DA)
[Stricter] moria1: ≥8.4 Mbit/s
Stable MTBF Partial (6/8 DA) Median: 78.4d (5/8 DA above threshold)
Min/Max: 19.7d / 7705.0d (8/8 DA, Voting / Total Eligible)		 ≥16.5d - 58.9d (varies) (≥5/8 DA)
Uptime Below (0/8 DA) 1.8d (R) ≥10.4d - 10.9d (varies) (≥5/8 DA)
HSDir Prereq: Fast Meets (8/8 DA) 8/8 DA assigned Fast ≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/8 DA)
[Stricter] moria1: ≥8.4 Mbit/s
Prereq: Stable Meets (8/8 DA) 8/8 DA assigned Stable ≥16.5d - 58.9d (varies) (≥5/8 DA)
Prereq: V2Dir Meets (8/8 DA) 8/8 DA assigned V2Dir Tunnelled directory via ORPort or DirPort (≥5/8 DA)
WFU Meets (5/8 DA) Median: 98.7% (5/8 DA above threshold)
Min/Max: 92.1% / 99.4% (8/8 DA, Voting / Total Eligible)		 ≥98.0% (≥5/8 DA)
Time Known Meets (7/8 DA) Median: 97.2d (8/8 DA above threshold)
Min/Max: 9.8d / 133.3d (8/8 DA, Voting / Total Eligible)		 ≥1.0d (most) (≥5/8 DA)
[Stricter] moria1: ≥9.8d
Guard Prereq: Fast Meets (8/8 DA) 8/8 DA assigned Fast ≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/8 DA)
[Stricter] moria1: ≥8.4 Mbit/s
Prereq: Stable Meets (8/8 DA) 8/8 DA assigned Stable ≥16.5d - 58.9d (varies) (≥5/8 DA)
Prereq: V2Dir Meets (8/8 DA) 8/8 DA assigned V2Dir Tunnelled directory via ORPort or DirPort (≥5/8 DA)
WFU Meets (5/8 DA) Median: 98.7% (5/8 DA above threshold)
Min/Max: 92.1% / 99.4% (8/8 DA, Voting / Total Eligible)		 ≥98% (≥5/8 DA)
Time Known Meets (8/8 DA) Median: 97.2d (8/8 DA above threshold)
Min/Max: 9.8d / 133.3d (8/8 DA, Voting / Total Eligible)		 ≥8 days (≥5/8 DA)
Bandwidth Meets (8/8 DA) 102.0 Mbit/s (R) ≥16.0 Mbit/s (Tor spec minimum) OR ≥80.0 Mbit/s-328.0 Mbit/s (≥5/8 DA)
Exit Exit Policy Below (0/8 DA) Port 80: No | Port 443: No (R) Allows ≥1 /8 on ports 80 AND 443 (≥5/8 DA)

(DA) = Dir. Auth. Measured | (R) = Relay Reported
Data from Tor CollecTor (authority votes, fetched 2026-04-29 12:45:03).

Bandwidth Metrics

Capacity (Relay Reported)
Observed Bandwidth
101.95 Mbit/s
Advertised Bandwidth
68.81 Mbit/s
Rate Limit
68.81 Mbit/s
Burst Limit
344.06 Mbit/s
Total Data
638 TB (5 years)
1mo: 23 TB | 6mo: 132 TB | 1y: 272 TB | 5y: 638 TB
Measurement (Directory Authority Verified)

Source: CollecTor — fetched 2026-04-29 12:45:03

Measured By
5/5 Bandwidth Authorities
Median Measurement
80.4 Kbit/s
Min / Max
68.8 Kbit/s / 120.0 Kbit/s
Deviation
51.2 Kbit/s [Warning] High variation
Network Participation: Consensus Weight: 0.0057% of network (50th pctl) | Guard: 0.0096% (60th pctl) | Middle: 0.0075% (63th pctl) | Exit: N/A

Uptime and Stability

Uptime Metrics
Current Status
UP 1d 20h 16m ago
Overall Uptime (1M/6M/1Y/5Y)
96.0%/99.3%/99.6%/99.6%
Flag Uptime (1M/6M/1Y/5Y)
Matches Overall Uptime (96.0%/99.3%/99.6%/99.6%)
Hibernating
No
Timestamps
First Seen
3w 1d 14h ago (2026-04-06 23:00:00)
Last Seen
5h 46m 39s ago (2026-04-29 08:00:00)
Last Restarted
1d 20h 16m ago (2026-04-27 17:29:59)
Last Changed Address
2026-04-25 20:00:00
Overload Status: Not Overloaded — No overload conditions reported.

Operator and Family

Operator Identity

Source: AROI Validation API — 2026-04-29 05:00 UTC

AROI Domain (?)
Not specified
Operator Validation
Unvalidated
This Relay
N/A (no AROI configured)
Contact
Steven Murdoch <ephemer-tor-admin@cl.cam.ac.uk>
Family Configuration
Family Support
Both — Happy Families (2 / 100%) and MyFamily (0 / 0%) | View Full Family (2)
Happy Families (family-cert)
Effective Members: 2 
2427E37429BD1E5EE094BDDF417D1D2BE2A2C803 (this relay)
462C4C97170DE94F251A46F4C741032864AD1BFB
MyFamily (legacy declarations)
Effective Members: 0
none
Alleged Member: 1
(they don't list you back) 
B340E3BA587E36462D8DE44DAE0F7CAB6748F064
Indirect Members: 0
none

Software and Version

Platform
Linux — Tor 0.4.9.6 on Linux
Version
0.4.9.6 — Recommended
Version Status
Recommended

Exit Health & Policy

DNS Health
Not an exit relay — DNS health testing does not apply.
IPv4 Exit Policy Summary
reject: 
  1-65535
IPv6 Exit Policy Summary
None
Full Exit Policy
reject *:*

Last fetch was at Wed, 29 Apr 2026 13:46:37 GMT.

Consensus Evaluation

Data from Tor CollecTor (authority votes, fetched 2026-04-29 12:45:03).

Per-Authority Details

Each cell shows: your measured value | authority threshold. Green = meets, red = below. Flags: green = all authorities agree, yellow = partial.

Authority Running Valid Exit MiddleOnly BW Scan
(Authority)		 v4 v6 Flags Fast (Relay|T) Guard BW (Relay|Threshold) Guard WFU (M|T) Guard TK (M|T) Stable MTBF (M|T) Stable Uptime (Relay|T) HSDir WFU (M|T) HSDir TK (M|T) Desc Published Cons Wt (Authority)
bastet (US) No — — — N No — — — — — — — — — — — —
dannenberg (DE) Yes Yes No — N Yes Yes Running, Valid, V2Dir, Fast, Stable 102.0 Mbit/s | 816.0 Kbit/s 102.0 Mbit/s | 80.0 Mbit/s OR 16.0 Mbit/s 97.4% | 98% 33.1d | 8d 19.7d | 46.4d 1.8d | 10.9d 97.4% | 98.0% 33.1d | 1.0d 2026-04-29 05:30:05 68.8 Kbit/s
dizum (NL) Yes Yes No — N Yes Yes Running, Valid, V2Dir, Fast, Stable 102.0 Mbit/s | 816.0 Kbit/s 102.0 Mbit/s | 80.0 Mbit/s OR 16.0 Mbit/s 98.0% | 98% 44.8d | 8d 26.4d | 42.5d 1.8d | 10.4d 98.0% | 98.0% 44.8d | 1.0d 2026-04-28 11:30:03 68.8 Kbit/s
faravahar (US) Yes Yes No — N Yes Yes Running, Valid, V2Dir, Fast, Stable, Guard 102.0 Mbit/s | 816.0 Kbit/s 102.0 Mbit/s | 80.0 Mbit/s OR 16.0 Mbit/s 99.4% | 98% 133.3d | 8d 81.3d | 58.9d 1.8d | 10.9d 99.4% | 98.0% 133.3d | 1.0d 2026-04-29 05:30:05 68.8 Kbit/s
gabelmoo (DE) Yes Yes No — Y Yes Yes Running, Valid, V2Dir, Fast, Stable, Guard 102.0 Mbit/s | 816.0 Kbit/s 102.0 Mbit/s | 304.0 Mbit/s OR 16.0 Mbit/s 99.4% | 98% 127.2d | 8d 79.0d | 57.3d 1.8d | 10.9d 99.4% | 98.0% 127.2d | 1.0d 2026-04-29 05:30:05 88.0 Kbit/s
longclaw (US) Yes Yes No — Y Yes — Running, Valid, V2Dir, Fast, Stable, Guard 102.0 Mbit/s | 816.0 Kbit/s 102.0 Mbit/s | 248.0 Mbit/s OR 16.0 Mbit/s 99.3% | 98% 125.0d | 8d 77.7d | 63.3d 1.8d | 10.9d 99.3% | 98.0% 125.0d | 1.0d 2026-04-29 05:30:05 120.0 Kbit/s
maatuska (SE) Yes Yes No — Y Yes Yes Running, Valid, V2Dir, Fast, Stable, Guard 102.0 Mbit/s | 816.0 Kbit/s 102.0 Mbit/s | 328.0 Mbit/s OR 16.0 Mbit/s 98.2% | 98% 69.4d | 8d 29.4d | 16.5d 1.8d | 10.7d 98.2% | 98.0% 69.4d | 1.0d 2026-04-29 05:30:05 104.0 Kbit/s
moria1 (US) Yes Yes No — Y Yes Yes Running, Valid, V2Dir, Fast, Stable 102.0 Mbit/s | 8.4 Mbit/s 102.0 Mbit/s | 224.0 Mbit/s OR 16.0 Mbit/s 92.1% | 98% 9.8d | 8d 7705.0d | 280.2d 1.8d | 12.2d 92.1% | 98.0% 9.77d | 9.83d 2026-04-29 05:30:05 72.8 Kbit/s
tor26 (AT) Yes Yes No — Y Yes Yes Running, Valid, V2Dir, Fast, Stable, Guard 102.0 Mbit/s | 816.0 Kbit/s 102.0 Mbit/s | 288.0 Mbit/s OR 16.0 Mbit/s 99.3% | 98% 127.3d | 8d 79.1d | 59.0d 1.8d | 11.1d 99.3% | 98.0% 127.3d | 1.0d 2026-04-29 05:30:05 112.0 Kbit/s

— = not tested/available • Format: relay value | authority threshold • WFU = Weighted Fractional Uptime • TK = Time Known

Bandwidth Values Explained:
Relay Reported = Your relay's self-reported bandwidth from its descriptor (observed_bandwidth). Used for flag eligibility (Guard, Fast).
Authority Measured = Bandwidth measured by authority's sbws scanner. Used for consensus weight (path selection probability).
Why different? Authorities verify your reported bandwidth independently. 6 of 9 authorities run bandwidth scanners; 3 use relay-reported values directly.
Stable Uptime (Two Data Sources):
Relay Uptime = From Onionoo API (last_restarted field). Self-reported uptime from descriptor. Same value for all authorities.
Authority Threshold = From CollecTor vote files (flag-thresholds stable-uptime). Each authority may have different thresholds.
Why two sources? Vote files contain authority thresholds but not per-relay uptime values. Onionoo aggregates relay descriptors which include uptime.