TCP SYN (p0f)

6:44+20:0:1380:mss*45,7:mss,sok,ts,nop,ws:flow:0

first seen 2026-10-28 23:33 · last seen 2026-10-28 23:33 · JSON

Last 7 days (6 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version6
Initial TTL44+20
Options length0
MSS1380
Window sizemss*45
Window scale7
Options layoutmss,sok,ts,nop,ws
Quirksflow
Payload class0

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d1312h2_f57a46bbacb6_a089bac06eae6

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn08ruru_a432c897f1d5_000000000000_0000000000001
ge20nn08ruru_1a39fe249177_000000000000_0000000000001
ge20nn08ruru_d774a41a69e9_000000000000_0000000000001
ge20nn08ruru_d70931d4a079_000000000000_0000000000001
ge20nn08ruru_ebf4d00e3242_000000000000_0000000000001
ge20nn08ruru_3d65cad4ba53_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;5:1048576;6:65856|1073741824|0|a,m,p,s6

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1380_76

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (iPhone; CPU iPhone OS 18_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Mobile/15E148 Safari/604.16

Country

fingerprintco-occurrences
DE · Germany6

Network (ASN)

fingerprintco-occurrences
AS215730 · H2NEXUS CLOUD SERVICES - FZCO6

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog.6