Tor Relays :: COtto

Flag	Metric	Status	Relay Value	Threshold Required
Running	IPv4 Reachability	Meets (9/9 DA)	9/9 authorities reached relay	≥5/9 DA ORPort reachable
Running	IPv6 Reachability	Meets (8/8 DA)	8/8 tested authorities reached relay	≥5/8 tested (majority) (≥5/8 DA)
Valid	Descriptor	Meets (9/9 DA)	9/9 authorities assigned Valid	Not blacklisted + valid descriptor (≥5/9 DA)
V2Dir	DirPort Available	Meets (9/9 DA)	Tunnelled: Yes (no DirPort) (R)	Tunnelled directory via ORPort or DirPort (≥5/9 DA)
Fast	Speed	Meets (9/9 DA)	68.9 Mbit/s (R)	≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/9 DA) [Stricter] moria1: ≥8.4 Mbit/s
Stable	MTBF	Meets (9/9 DA)	Median: 404.2d (8/9 DA above threshold) Min/Max: 11.4d / 689.1d (9/9 DA, Voting / Total Eligible)	≥11.3d - 53.9d (varies) (≥5/9 DA) [Stricter] moria1: ≥366.1d
Stable	Uptime	Meets (9/9 DA)	30.7d (R)	≥9.8d - 12.7d (varies) (≥5/9 DA)
HSDir	Prereq: Fast	Meets (9/9 DA)	9/9 DA assigned Fast	≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/9 DA) [Stricter] moria1: ≥8.4 Mbit/s
	Prereq: Stable	Meets (9/9 DA)	9/9 DA assigned Stable	≥11.3d - 53.9d (varies) (≥5/9 DA) [Stricter] moria1: ≥366.1d
	Prereq: V2Dir	Meets (9/9 DA)	9/9 DA assigned V2Dir	Tunnelled directory via ORPort or DirPort (≥5/9 DA)
	WFU	Meets (9/9 DA)	Majority: 100.0% (8/9 DA) Min/Med/Max: 99.9% / 100.0% / 100.0% (9/9 DA, Voting / Total Eligible)	≥98.0% (≥5/9 DA)
	Time Known	Meets (8/9 DA)	Median: 300.0d (9/9 DA above threshold) Min/Max: 9.6d / 689.1d (9/9 DA, Voting / Total Eligible)	≥1.0d (most) (≥5/9 DA) [Stricter] moria1: ≥9.9d
Guard	Prereq: Fast	Meets (9/9 DA)	9/9 DA assigned Fast	≥800.0 Kbit/s (Tor spec minimum) OR top 7/8 (≥5/9 DA) [Stricter] moria1: ≥8.4 Mbit/s
	Prereq: Stable	Meets (9/9 DA)	9/9 DA assigned Stable	≥11.3d - 53.9d (varies) (≥5/9 DA) [Stricter] moria1: ≥366.1d
	Prereq: V2Dir	Meets (9/9 DA)	9/9 DA assigned V2Dir	Tunnelled directory via ORPort or DirPort (≥5/9 DA)
	WFU	Meets (9/9 DA)	Majority: 100.0% (8/9 DA) Min/Med/Max: 99.9% / 100.0% / 100.0% (9/9 DA, Voting / Total Eligible)	≥98% (≥5/9 DA)
	Time Known	Meets (9/9 DA)	Median: 300.0d (9/9 DA above threshold) Min/Max: 9.6d / 689.1d (9/9 DA, Voting / Total Eligible)	≥8 days (≥5/9 DA)
	Bandwidth	Meets (9/9 DA)	68.9 Mbit/s (R)	≥16.0 Mbit/s (Tor spec minimum) OR ≥80.0 Mbit/s-296.0 Mbit/s (≥5/9 DA)
Exit	Exit Policy	Below (0/9 DA)	Port 80: No \| Port 443: No (R)	Allows ≥1 /8 on ports 80 AND 443 (≥5/9 DA)

(DA) = Dir. Auth. Measured | (R) = Relay Reported
Data from Tor CollecTor (authority votes, fetched 2026-03-15 20:45:07).

Bandwidth Metrics

Capacity (Relay Reported)

Observed Bandwidth: 68.91 Mbit/s
Advertised Bandwidth: 65.54 Mbit/s
Rate Limit: 65.54 Mbit/s
Burst Limit: 131.07 Mbit/s
Total Data: 1.3 PB (5 years)
1mo: 18 TB | 6mo: 113 TB | 1y: 251 TB | 5y: 1.3 PB

Measurement (Directory Authority Verified)

Source: CollecTor — fetched 2026-03-15 20:45:07

Measured By: 5/6 Bandwidth Authorities
Not measured by: longclaw
Median Measurement: 65.5 Kbit/s
Min / Max: 64.8 Kbit/s / 96.0 Kbit/s

Network Participation: Consensus Weight: 0.0048% of network (49th pctl) | Guard: 0.0088% (60th pctl) | Middle: 0.0057% (61th pctl) | Exit: N/A

Uptime and Stability

Uptime Metrics

Current Status: UP 1mo 17h 2m ago
Overall Uptime (1M/6M/1Y/5Y): 100.0%/100.0%/100.0%/99.8%
Flag Uptime (1M/6M/1Y/5Y): Matches Overall Uptime (100.0%/100.0%/100.0%/99.8%)
Hibernating: No

Timestamps

First Seen: 4y 8mo 2d ago (2021-07-17 00:00:00)
Last Seen: 1h 46m 38s ago (2026-03-15 19:00:00)
Last Restarted: 1mo 17h 2m ago (2026-02-13 03:43:49)
Last Changed Address: 2024-01-29 19:00:00

Overload Status: Not Overloaded — No overload conditions reported.

Operator and Family

Operator Identity

Source: AROI Validation API — 2026-03-15 13:00 UTC

AROI Domain (?): ftp.halifax.rwth-aachen.de
Operator Validation: Validated (9/9 relays)
This Relay: Validated (uri-rsa)
Contact: 0x8D41788E90924014 Carsten Otto <tor@c-otto.de> url:ftp.halifax.rwth-aachen.de proof:uri-rsa ciissversion:2

Family Configuration

Family Support: MyFamily Only (9) — Legacy only. Consider migrating to Happy Families. | View Full Family (9)

Happy Families (family-cert)

Effective Members: 0: none

MyFamily (legacy declarations)

Effective Members: 9

008EAE223B110C8EDEE20D06FB0DD4C43E3E0142
1815E96EDB9444E9CD0D11FB9BB695B687C21E82
27E1B97D9491013EF48479D4F47002F3358E0D92
2F3B9DFFDF23DAC9CCC8E223EAB6423535DDC21E
4E8BF739B5E7835776EDD72CF9CAA402ACE00055 (this relay)
63F7DC3102C95E010F83B2041A5938909E4ABAF2
A86B8708BAAC8A1FE66F0FE9270D23A364A1601B
ACB898B28ACABBD78F23AF2FB06FC864A4111646
DA78144C70B15AE3EB04DE340DC8FADB80F1F495

Alleged Members: 0

none

Indirect Members: 0

none

Software and Version

Platform: Linux — Tor 0.4.9.5 on Linux
Version: 0.4.9.5 — 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

Full Exit Policy

reject *:*

Last fetch was at Sun, 15 Mar 2026 20:46:37 GMT.

Consensus Evaluation

Data from Tor CollecTor (authority votes, fetched 2026-03-15 20:45:07).

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)	Yes	Yes	No	—	Y	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 208.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	487.1d \| 8d	487.1d \| 57.0d	30.7d \| 11.9d	100.0% \| 98.0%	487.1d \| 1.0d	2026-03-15 11:45:55	64.8 Kbit/s
dannenberg (DE)	Yes	Yes	No	—	N	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 80.0 Mbit/s OR 16.0 Mbit/s	99.9% \| 98%	19.6d \| 8d	11.4d \| 11.3d	30.7d \| 12.7d	99.9% \| 98.0%	19.6d \| 1.0d	2026-03-15 11:45:55	65.5 Kbit/s
dizum (NL)	Yes	Yes	No	—	N	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 80.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	91.8d \| 8d	91.8d \| 43.2d	30.7d \| 9.8d	100.0% \| 98.0%	91.8d \| 1.0d	2026-03-15 11:45:55	65.5 Kbit/s
faravahar (US)	Yes	Yes	No	—	N	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 80.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	404.2d \| 8d	404.2d \| 53.3d	30.7d \| 12.8d	100.0% \| 98.0%	404.2d \| 1.0d	2026-03-15 11:45:55	65.5 Kbit/s
gabelmoo (DE)	Yes	Yes	No	—	Y	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 280.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	689.1d \| 8d	689.1d \| 58.4d	30.7d \| 12.7d	100.0% \| 98.0%	689.1d \| 1.0d	2026-03-15 11:45:55	80.0 Kbit/s
longclaw (US)	Yes	Yes	No	—	Y	Yes	—	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 80.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	300.0d \| 8d	300.0d \| 61.1d	30.7d \| 12.8d	100.0% \| 98.0%	300.0d \| 1.0d	2026-03-15 11:45:55	65.5 Kbit/s
maatuska (SE)	Yes	Yes	No	—	Y	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 296.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	138.5d \| 8d	138.5d \| 40.8d	30.7d \| 12.7d	100.0% \| 98.0%	138.5d \| 1.0d	2026-03-15 11:45:55	96.0 Kbit/s
moria1 (US)	Yes	Yes	No	—	Y	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, Guard	68.9 Mbit/s \| 8.4 Mbit/s	68.9 Mbit/s \| 224.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	9.6d \| 8d	511.6d \| 366.1d	30.7d \| 15.4d	100.0% \| 98.0%	9.6d \| 9.9d	2026-03-15 11:45:55	70.4 Kbit/s
tor26 (AT)	Yes	Yes	No	—	Y	Yes	Yes	Running, Valid, V2Dir, Fast, Stable, HSDir, Guard	68.9 Mbit/s \| 816.0 Kbit/s	68.9 Mbit/s \| 280.0 Mbit/s OR 16.0 Mbit/s	100.0% \| 98%	689.1d \| 8d	689.1d \| 53.9d	30.7d \| 12.8d	100.0% \| 98.0%	689.1d \| 1.0d	2026-03-15 11:45:55	76.0 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.

View Relay "COtto"

Fingerprint: 4E8BF739B5E7835776EDD72CF9CAA402ACE00055 | Operator: ftp.halifax.rwth-aachen.de (9 relays) ✓ Validated | Family: 9 relays | 0x8D41788E90924014 Carsten Otto... | AS24940 | Germany | Linux

Addresses

Reachability (Directory Authorities)

Location

Autonomous System

Eligibility Flag Vote Details