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ASN REPORT — AS12816 · Leibniz-Rechenzentrum

First sighted: July 6, 2023, 3 a.m. · Last sighted: Dec. 18, 2025, 1:59 a.m.

Risk
6 (low)
Total hits
15071
Total errors
2450
Observed IPs
772
Top country
N/A
Top city
N/A

Risk

Model: v1 Computed: 2026-01-18 11:55:16
Risk score
6
Low
Risk gradient
Key drivers are enriched against the published annotator catalog when available; otherwise sensible defaults are used.
Key drivers
User-Agent anomaly
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
ua
Hits 1997
Points 143.78
Credential brute forcing
Repeated authentication attempts consistent with password guessing or credential stuffing.
cred
Hits 6
Points 13.86
Request size anomaly
Requests are unusually large or shaped in a way that suggests abuse or automation.
request_size
Hits 6
Points

Traffic

Rollup

Daily activity (hits per day) and basic HTTP rollup counters for this ASN.

Loading activity…
Daily activity (hits per day). Total in window: —.
Traffic rollup
HTTP status classes, URL diversity, and totals.
2xx
8595
3xx
28
4xx
2371
5xx
79
Unique URLs
3777
Total hits
15071
First seen
July 6, 2023, 3 a.m.
Last seen
Dec. 18, 2025, 1:59 a.m.

Annotators (All-time)

Heatmap of annotator × severity. Darker cells mean more volume in that band. Tip: switch to Weighted points to see what drives impact (not just noise).

Severity →
Low High
User-Agent anomaly ua
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
hits 1997 pts 143.78
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
6 1997 1 143.78 Oct. 4, 2023, 12:01 a.m. May 21, 2025, 10:34 a.m.
ua 1997
Credential brute forcing cred
Repeated authentication attempts consistent with password guessing or credential stuffing.
hits 6 pts 13.86
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
10 2 1 7.70 Jan. 6, 2024, 6:44 a.m. Nov. 1, 2024, 4:06 a.m.
cred 2
8 2 1 6.16 Jan. 6, 2024, 6:44 a.m. Nov. 1, 2024, 4:06 a.m.
cred 2
0 2 1 0.00 Jan. 6, 2024, 6:44 a.m. Nov. 1, 2024, 4:06 a.m.
cred 2
Request size anomaly request_size
Requests are unusually large or shaped in a way that suggests abuse or automation.
hits 6 pts 0.00
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
0 6 1 0.00 May 21, 2025, 10:33 a.m. May 21, 2025, 10:33 a.m.
request_size 6

HTTP Status Breakdown

Response mix grouped by status class (2xx/3xx/4xx/5xx). Auto-loads a single aggregation and renders a donut.

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Running one aggregation and rendering the chart.

Geolocation

Live geolocation and map tiles auto-load for this ASN snapshot (peer IPs with coordinates).

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SUBNETS HELD BY THIS ISP

Derived from ISP snapshot peers (Option A). Grouped into IPv4 /24 and IPv6 /48 by default.
IPv4
IPv6
Limit
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Interesting IPs

Top risky peers inside this ASN (latest snapshot). Sorted by risk score, then hits.

No peer rows available for this ASN snapshot.