HTTP/2 frames (Akamai)

2:0;3:100;4:2097152;8:1;9:1|10420225|0|m,s,a,p

first seen 2026-07-01 01:41 · last seen 2026-10-23 09:49 · JSON

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

SETTINGS{"2": 0, "3": 100, "4": 2097152, "8": 1, "9": 1}
WINDOW_UPDATE10420225
PRIORITY frames0
Pseudo-header orderm,s,a,p

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
t13d2014h2_a09f3c656075_e42f34c56612 Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.5, safari 26.6.1, +2 more.The fingerprint page shows the full measured match list. More on the catalog.12
t13d2014h2_a09f3c656075_14788d8d241b2

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn08enus_1945e0741196_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.6.2, safari 26.4.The fingerprint page shows the full measured match list. More on the catalog.11
ge20nr09ja00_5ad46a65401a_000000000000_0000000000002
ge20nr09enus_5ad46a65401a_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.6.2, safari 26.6.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:53+11:0:1380:mss*47,10:mss,sok,ts,nop,ws:df,id+:09
6:46+18:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:01
4:55+9:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:id-:01
4:47+17:0:1452:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:01
6:44+20:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:01
4:46+18:0:1360:65535,6:mss,nop,ws,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,sok,eol+1:id-:01

TCP SYN (JA4T)

fingerprintco-occurrences
64860_2-4-8-1-3_1380_109
64800_2-4-8-1-3_1440_102
65535_2-1-3-1-1-8-4-0-0_1460_61
65535_2-1-3-1-1-8-4-0-0_1452_61
65535_2-1-3-1-1-1-1-1-1-1-1-1-1-1-1-4-0-0_1360_61

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Safari/605.1.156
Mozilla/5.0 (iPhone; CPU iPhone OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Mobile/15E148 Safari/604.15
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Safari/605.1.152
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Safari/605.1.151

Country

fingerprintco-occurrences
CY · Cyprus9
CH · Switzerland2
CN · China2
US · United States1

Network (ASN)

fingerprintco-occurrences
AS57169 · EDIS GmbH9
AS13030 · Init7 (Switzerland) Ltd.2
AS4134 · CHINANET BACKBONE1
AS4837 · CHINA UNICOM China169 Backbone1
AS21554 · Wisconsin CyberLynk Network, Inc.1

TLS supported groups

fingerprintco-occurrences
0a0a,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.1.2, safari 27.2.The fingerprint page shows the full measured match list. More on the catalog.2

Cross-transport links

TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).

fingerprintlinked observations
q13d0311h3_55b375c5d22e_f2a83c8e78ae3