HTTP/2 frames (Akamai)

3:100;4:65536;2:0|1048510465|0|m,s,a,p

first seen 2026-06-10 23:54 · last seen 2026-11-01 18:27 · JSON

Last 7 days (220 observations)

Distinct clients per day (last 30 days, peak 13106/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": 65536}
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.18927
t13d3013h2_1d37bd780c83_8537cf56674e Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog.14609
t13d1711h2_5b57614c22b0_5894756fee651301
t13d4113h2_8ae0994cad11_86f67be995ff224
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.177
t13d3012h2_1d37bd780c83_882d495ac381 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.21.0, curl 8.22.0, curl 8.23.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.27
t13d1807h2_796efca44d18_7395dae3b2f313
t13d3513h2_bfa337485184_8d7351bd871b Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog.8
t13i4112h2_8ae0994cad11_86f67be995ff6
t13d2713h2_c42a7efa14d1_8d7351bd871b5

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn060000_2a1d139103bd_000000000000_00000000000018886
ge20nn030000_bf75ddd0bb29_000000000000_00000000000014285
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.1080
he20nn030000_bf75ddd0bb29_000000000000_000000000000590
ge20nn040000_b221e026a664_000000000000_000000000000140
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.81
he20nn040000_8e83c27df1d3_000000000000_00000000000057
ge20nn070000_475aaf807767_000000000000_00000000000039
ge20nn050000_95d177640a65_000000000000_00000000000024
ge20nn070000_55881d2ca2c0_000000000000_00000000000016

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1460:65535,14:mss,sok,ts,nop,ws:df,id+,ecn:05531
4:48+16:0:1460:65535,14:mss,sok,ts,nop,ws:df,id+,ecn:04714
4:45+19:0:1460:65535,14:mss,sok,ts,nop,ws:df,id+,ecn:04498
4:46+18:0:1460:65535,14:mss,sok,ts,nop,ws:df,id+,ecn:01805
4:49+15:0:1460:65535,14:mss,sok,ts,nop,ws:df,id+,ecn:01389
4:57+7:0:1420:mss*30,7:mss,sok,ts,nop,ws:df,id+:01297
4:44+20:0:1460:65535,14:mss,sok,ts,nop,ws:df,id+,ecn:0960
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0863
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0825
4:48+16:0:1460:mss*29,13:mss,sok,ts,nop,ws:df,id+:0670

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_1418885
64240_2-4-8-1-3_1460_76283
42600_2-4-8-1-3_1420_71295
64800_2-4-8-1-3_1440_7909
42340_2-4-8-1-3_1460_12752
42340_2-4-8-1-3_1460_13672
64240_2-4-8-1-3_1460_8628
29184_2-4-8-1-3_1363_7506
65535_2-4-8-1-3_1380_13427
62720_2-4-8-1-3_1460_8318

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)18926
curl/8.14.114380
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; ShapBot/0.1.01223
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36201
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)171
Mozilla/5.077
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; Shap-User/0.1.039
curl/8.21.037
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.3634
curl/8.20.031

Country

fingerprintco-occurrences
US · United States10664
DE · Germany4609
CA · Canada4514
GB · United Kingdom4419
FR · France4311
NL · Netherlands1439
JP · Japan738
PL · Poland498
AU · Australia470
SG · Singapore434

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS19444
AS14061 · DigitalOcean, LLC2486
AS211619 · MAXKO d.o.o.1395
AS12876 · Scaleway SAS1317
AS396982 · Google LLC1302
AS63949 · Akamai Connected Cloud1028
AS21859 · Zenlayer Inc644
AS13335 · Cloudflare, Inc.466
AS31898 · Oracle Corporation370
AS13213 · THG HOSTING LIMITED305

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,001e,0018,0019,0100,0101 Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1, python-requests 2.34.2, curl 8.23.0, +4 more.The fingerprint page shows the full measured match list. More on the catalog.13796
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, php-guzzle 8.3.1, curl 7.88.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog.209
001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.11.27, winhttp 10.0.20348.1, +2 more.The fingerprint page shows the full measured match list. More on the catalog.31
11ec,11eb,11ed,001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog.21
001d,0017,001e,0019,00188
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.1

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
q13d0413h3_9caa18292e23_23fce1e67d9813
q13d0307h3_55b375c5d22e_1cecd519fee81