HTTP/2 frames (Akamai)

2:0;4:2097152;3:100;9:1|10485760|0|m,s,p,a

first seen 2026-06-22 11:13 · last seen 2026-10-25 12:54 · JSON

Last 7 days (1 observations)

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, "9": 1}
WINDOW_UPDATE10485760
PRIORITY frames0
Pseudo-header orderm,s,p,a

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
t13d2013h2_a09f3c656075_7f0f34a4126d Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.6.2, safari 26.4, +2 more.The fingerprint page shows the full measured match list. More on the catalog.41
t13d1313h2_f57a46bbacb6_7f0f34a4126d8

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn05enus_3f99bc624e90_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.3.2, urlsession 6.3.3.The fingerprint page shows the full measured match list. More on the catalog.20
ge20nn05engb_3f99bc624e90_000000000000_0000000000004
ge20nn08enus_6452f234bcf7_000000000000_0000000000003
ge20nr09engb_9ef6621d46ec_000000000000_0000000000003
ge20nn05enau_3f99bc624e90_000000000000_0000000000002
ge20nn08engb_abbb35b20271_000000000000_0000000000002
ge20nn07enus_0cf68805773e_000000000000_0000000000002
ge20nn05itit_3f99bc624e90_000000000000_0000000000002
ge20nn06enus_bb0ebad10934_000000000000_0000000000001
ge20nn05trtr_3f99bc624e90_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:45+19:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:04
4:53+11:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:03
4:49+15:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:03
6:39+25:0:1380:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:ecn,flow:03
4:50+14:0:1460:65535,5:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:02
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:47+17:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:01
4:51+13:0:1460:mss*44,8:mss,sok,ts,nop,ws:df,id+:01
4:55+9:0:1460:65535,9:mss,sok,ts,nop,ws:df,id+:01
4:56+8:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-8-4-0-0_1460_617
65535_2-4-8-1-3_1460_94
64800_2-4-8-1-3_1440_73
65535_2-1-3-1-1-8-4-0-0_1440_63
65535_2-1-3-1-1-8-4-0-0_1380_63
42340_2-4-8-1-3_1460_122
65535_2-1-3-1-1-8-4-0-0_1400_62
65535_2-1-3-1-1-8-4-0-0_1460_52
64240_2-4-8-1-3_1460_81
65535_2-4-8-1-3_1220_91

User-Agent

fingerprintco-occurrences
HackerNews/1566 CFNetwork/3860.600.12 Darwin/25.5.015
HackerNews/1545 CFNetwork/3860.600.12 Darwin/25.5.04
Mozilla/5.0 (compatible; RedditApp/1.0)4
Hydra/21 CFNetwork/3860.600.12 Darwin/25.5.03
Mozilla/5.0 (iPhone; CPU iPhone OS 26_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/150.0.7871.113 Mobile/15E148 Safari/604.13
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko)2
feeeed/37 CFNetwork/3860.300.31 Darwin/25.2.02
facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)1
com.apple.AuthenticationServicesCore.AuthenticationServicesAgent/8624.2.5.10.4 CFNetwork/3860.600.12 Darwin/25.5.01
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Betamagic/2.21

Country

fingerprintco-occurrences
US · United States24
AU · Australia3
EE · Estonia3
GB · United Kingdom2
NZ · New Zealand2
FI · Finland2
IT · Italy2
IL · Israel2
IM · Isle of Man2
JP · Japan1

Network (ASN)

fingerprintco-occurrences
AS36183 · Akamai Technologies, Inc.3
AS209 · CenturyLink Communications, LLC3
AS3249 · Telia Eesti AS3
AS212238 · Datacamp Limited2
AS7018 · AT&T Enterprises, LLC2
AS12874 · Fastweb SpA2
AS8551 · Bezeq International Ltd.2
AS13122 · Manx Telecom Trading Ltd2
AS9790 · Two Degrees Networks Limited2
AS54113 · Fastly, Inc.2

TLS supported groups

fingerprintco-occurrences
0a0a,11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.3.3, safari 26.6.2.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
q13d0311h3_55b375c5d22e_f2a83c8e78ae2