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 2026-09-15 12:35 · JSON

Last 7 days (18 observations)

Distinct clients per day (last 30 days, peak 93/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.2672
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.257
t13d3112h2_e8f1e7e78f70_8d633dac712410
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

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 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog.2918
ge20nn030000_ff50983941c1_000000000000_00000000000011
ge20nn020000_e5a56608905c_000000000000_0000000000007
he20nn020000_5594a17e7e7e_000000000000_0000000000005
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
ge20nn04enus_1f85cee3b49d_000000000000_0000000000003
ge20nn03enus_dc308f3700d9_000000000000_0000000000002
ge20nn06enus_c0e090d478a9_000000000000_0000000000001
he20nn06enus_43e672cad96b_000000000000_0000000000001
ge20nn05enus_813e32c09d15_000000000000_0000000000001

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+:075
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_7299
65535_2-4-8-1-3_1460_2214
65535_2-4-8-1-3_1460_8169
64800_2-4-8-1-3_1440_7125
65535_2-4-8-1-3_1452_668
65535_2-4-8-1-3_1368_660
65535_2-4-8-1-3_1440_653
32768_2-3-4-0-0-0_1452_0050

User-Agent

fingerprintco-occurrences
curl/8.5.02655
curl/8.7.1226
Mozilla/5.010
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
Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/152.0.0.05
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.363
curl/8.4.03

Country

fingerprintco-occurrences
US · United States2650
MA · Morocco124
ID · Indonesia26
DE · Germany18
NL · Netherlands13
JP · Japan12
SG · Singapore11
AU · Australia10
CN · China10
IN · India10

Network (ASN)

fingerprintco-occurrences
AS7018 · AT&T Enterprises, LLC649
AS7922 · Comcast Cable Communications, LLC638
AS5650 · Verizon Business241
AS6167 · Verizon Business170
AS701 · Verizon Business160
AS33363 · Charter Communications, Inc129
AS36903 · Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM124
AS20115 · Charter Communications LLC106
AS12083 · WideOpenWest Finance LLC62
AS21928 · T-Mobile USA, Inc.57

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