HTTP/2 frames (Akamai)

1:65536;2:0;4:131072;5:16384|12517377|0|m,p,a,s

first seen 2026-08-20 06:53 · last seen 2026-08-22 07:27 · 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{"1": 65536, "2": 0, "4": 131072, "5": 16384}
WINDOW_UPDATE12517377
PRIORITY frames0
Pseudo-header orderm,p,a,s

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
t13d1516h2_8daaf6152771_33a51b5ad3c550

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn11ruru_3901d4197baf_000000000000_0000000000007
ge20nn11dede_3901d4197baf_000000000000_0000000000006
ge20nn11ptbr_3901d4197baf_000000000000_0000000000005
ge20nn11frfr_3901d4197baf_000000000000_0000000000005
ge20nn11enus_3901d4197baf_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 153.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.5
ge20nn11zhcn_3901d4197baf_000000000000_0000000000004
ge20nn11jajp_3901d4197baf_000000000000_0000000000004
ge20nn11eses_3901d4197baf_000000000000_0000000000004
ge20nn11engb_3901d4197baf_000000000000_0000000000004
ge20nn10enus_d353d425b0bb_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 152.0.1.The fingerprint page shows the full measured match list. More on the catalog.3

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1460:65535,3:mss,sok,ts,nop,ws:df,id+:035
4:47+17:0:1460:1152,0:mss,sok,ts,nop,ws:df,id+:015

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_335
1152_2-4-8-1-3_1460_0015

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.024
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.016
Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.06
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.01

Country

fingerprintco-occurrences
NL · Netherlands50

Network (ASN)

fingerprintco-occurrences
AS197170 · TechTies Inc.50