HTTP/2 frames (Akamai)

3:100;4:10485760;2:0|1048510465|0|m,s,a,p

first seen 2026-06-17 17:47 · last seen 2026-10-30 17:42 · JSON

Last 7 days (60 observations)

Distinct clients per day (last 30 days, peak 27/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": 10485760}
WINDOW_UPDATE1048510465
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
t13d3112h2_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.5.0, php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.2752
t13d4907h2_0d8feac7bc37_7395dae3b2f3 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.386
t13d3112h2_e8f1e7e78f70_8d633dac7124 Match?Exact match in Thumbprint's published controlled catalog captures: curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.10
t13i3111h2_e8f1e7e78f70_b26ce05bbdd68
t12d8007h2_9cedc1f1428b_8587f467d9ea6
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog.3
t13d3612h2_018971650b2c_d25cae7eed4b3
t13d3208h2_a3c911483b05_0deb43056c763
t13d0412h2_16476d049b0b_85302d7e289e1
t13d3612h2_018971650b2c_89b78339ac4c1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.13.0, +11 more.The fingerprint page shows the full measured match list. More on the catalog.3109
ge20nn030000_ff50983941c1_000000000000_00000000000021
ge20nn020000_e5a56608905c_000000000000_00000000000010
he20nn020000_5594a17e7e7e_000000000000_0000000000006
ge20nn030000_042112399351_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0.The fingerprint page shows the full measured match list. More on the catalog.4
ge20nn040000_250c2efcea20_000000000000_0000000000004
ge20nn04enus_1f85cee3b49d_000000000000_0000000000003
ge20nn030000_e057572924c3_000000000000_0000000000002
ge20nn03enus_dc308f3700d9_000000000000_0000000000002
ge20nn04zhcn_3b20e5b1deac_000000000000_0000000000002

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1460:65535,6:mss,sok,ts,nop,ws:df,id+:0239
4:52+12:0:1460:65535,6:mss,sok,ts,nop,ws:df,id+:0230
4:50+14:0:1460:65535,6:mss,sok,ts,nop,ws:df,id+:0109
4:53+11:0:1460:65535,6:mss,sok,ts,nop,ws:df,id+:0104
4:51+13:0:1460:65535,4:mss,sok,ts,nop,ws:df,id+:097
4:52+12:0:1460:65535,4:mss,sok,ts,nop,ws:df,id+:080
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:077
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:068
4:50+14:0:1460:65535,4:mss,sok,ts,nop,ws:df,id+:054
4:51+13:0:1460:65535,2:mss,sok,ts,nop,ws:df,id+:052

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_6879
65535_2-4-8-1-3_1460_4385
64240_2-4-8-1-3_1460_7314
65535_2-4-8-1-3_1460_2214
65535_2-4-8-1-3_1460_8173
64800_2-4-8-1-3_1440_7131
65535_2-4-8-1-3_1452_668
65535_2-4-8-1-3_1368_664
65535_2-4-8-1-3_1440_653
32768_2-3-4-0-0-0_1452_0050

User-Agent

fingerprintco-occurrences
curl/8.5.02720
curl/8.7.1283
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0 Safari/537.3639
Mozilla/5.020
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20100101 Firefox/8.09
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.366
curl/8.3.06
curl/8.4.05
Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/152.0.0.05
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 Chrome/128 Safari/537.365

Country

fingerprintco-occurrences
US · United States2739
MA · Morocco124
DE · Germany62
ID · Indonesia26
JP · Japan21
CN · China18
SG · Singapore17
RU · Russia16
NL · Netherlands14
IN · India12

Network (ASN)

fingerprintco-occurrences
AS7018 · AT&T Enterprises, LLC651
AS7922 · Comcast Cable Communications, LLC640
AS5650 · Verizon Business242
AS6167 · Verizon Business178
AS701 · Verizon Business168
AS33363 · Charter Communications, Inc129
AS36903 · Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM124
AS20115 · Charter Communications LLC106
AS21928 · T-Mobile USA, Inc.67
AS12083 · WideOpenWest Finance LLC62

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.77
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.3.1, curl 7.88.1, curl 8.13.0, +10 more.The fingerprint page shows the full measured match list. More on the catalog.34

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_653d80c3fe9d2