TLS supported groups

11ec,001d,0017,0018,0019,0100,0101

first seen 2026-10-14 12:02 · last seen 2026-10-31 00:27 · JSON

Last 7 days (115 observations)

Distinct clients per day (last 30 days, peak 14/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

Groups in wire order11ec (X25519MLKEM768), 001d (x25519), 0017 (secp256r1), 0018 (secp384r1), 0019 (secp521r1), 0100 (ffdhe2048), 0101 (ffdhe3072)
Group count7
GREASE count0

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
t13d1617h2_86a278354501_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.3, +10 more.The fingerprint page shows the full measured match list. More on the catalog.66
t13d1617h1_86a278354501_3cbfd9057e0d19
t13d1715h2_5b57614c22b0_a54fffd0eb6116
t13d1517h2_8daaf6152771_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 155.0.1, firefox 154.0, firefox 156.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.12
t13d1616h2_86a278354501_0c27189014cf Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.6, +10 more.The fingerprint page shows the full measured match list. More on the catalog.9
t13d1717h2_5b57614c22b0_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog.9
t13d1615h2_86a278354501_a54fffd0eb617
t13d1717h2_5b57614c22b0_05692a3430783
t13d1716h2_5b57614c22b0_eeeea6562960 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 132.0, firefox 134.0.The fingerprint page shows the full measured match list. More on the catalog.2
t13d1710h2_ab0a1bf427ad_5603904660151

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr11enus_3901d4197baf_000000000000_00000000000036
ge20nr10enus_b3034183f430_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 155.0.1, +27 more.The fingerprint page shows the full measured match list. More on the catalog.22
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.21
ge20nr12enus_a72b71f519fc_000000000000_00000000000013
ge11nn12enus_9a9494a1019e_000000000000_00000000000012
ge11nr11enus_5eb2ef639ff5_000000000000_0000000000007
ge20nn12enus_7e62679e718a_000000000000_0000000000005
ge20nr11enus_187a9385d229_000000000000_0000000000004
ge20nn12enus_a72b71f519fc_000000000000_0000000000004
ge20nn11zhcn_3901d4197baf_000000000000_0000000000003

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.32
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 155.0.1, +31 more.The fingerprint page shows the full measured match list. More on the catalog.25
1:65536;2:0;4:131072;5:16384|12517377|11:0:0:42|m,p,a,s10
1:65536;2:0;4:131072;5:16384|12517377|13:0:0:42|m,p,a,s7
1:65536;2:0;4:131072;5:16384|12517377|5:0:0:42|m,p,a,s7
1:65536;2:0;4:131072;5:16384|12517377|9:0:0:42|m,p,a,s6
1:65536;2:0;4:131072;5:16384|12517377|5:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0.3, firefox 154.0, firefox 153.0, +12 more.The fingerprint page shows the full measured match list. More on the catalog.5
1:65536;2:0;4:131072;5:16384|12517377|7:0:0:42|m,p,a,s4
1:65536;2:0;4:131072;5:16384|12517377|7:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0.3, firefox 155.0, firefox 154.0, +3 more.The fingerprint page shows the full measured match list. More on the catalog.3
1:65536;2:0;4:131072;5:16384|12517377|17:0:0:42|m,p,a,s3

TCP SYN (p0f)

fingerprintco-occurrences
4:115+13:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:061
6:43+21:0:1440:mss*30,9:mss,nop,nop,ts,nop,ws:flow:015
6:43+21:0:1340:65535,8:mss,nop,ws,nop,nop,sok:flow:08
6:48+16:0:1420:mss*46,7:mss,sok,ts,nop,ws:flow:07
6:48+16:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:05
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:03
4:116+12:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:03
4:45+19:0:1360:mss*48,7:mss,sok,ts,nop,ws:df,id+:03
6:42+22:0:1340:65535,8:mss,nop,ws,nop,nop,sok:flow:03
4:47+17:0:1440:65535,6:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1460_861
43200_2-1-1-8-1-3_1440_915
65535_2-1-3-1-1-4_1340_811
65320_2-4-8-1-3_1420_77
65535_2-4-8-1-3_1440_67
64800_2-4-8-1-3_1440_76
65535_2-4-8-1-3_1460_66
64240_2-4-8-1-3_1460_75
65535_2-4-8-1-3_1452_65
65280_2-4-8-1-3_1360_73

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:153.0) Gecko/20100101 Firefox/153.064
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.015
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.011
Mozilla/5.0 (X11; Linux x86_64; rv:153.0) Gecko/20100101 Firefox/153.09
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:154.0) Gecko/20100101 Firefox/154.08
Mozilla/5.0 (X11; Linux x86_64; rv:149.0) Gecko/20100101 Firefox/149.05
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; PerplexityBot/1.0; +https://perplexity.ai/perplexitybot)3
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:144.0) Gecko/20100101 Firefox/144.03
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.02
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.02

Country

fingerprintco-occurrences
HU · Hungary61
SE · Sweden16
FR · France13
IL · Israel12
US · United States5
NL · Netherlands5
CN · China4
DE · Germany3
HK · Hong Kong SAR China3
CH · Switzerland2

Network (ASN)

fingerprintco-occurrences
AS5483 · Magyar Telekom Plc.61
AS212238 · Datacamp Limited15
AS1680 · Cellcom Fixed Line Communication L.P12
AS12322 · Free SAS7
AS2027 · MilkyWan Association5
AS24940 · Hetzner Online GmbH3
AS14618 · Amazon.com, Inc.3
AS136907 · HUAWEI CLOUDS3
AS55990 · Huawei Cloud Service data center2
AS215125 · Church of Cyberology2

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
q13d0315h3_55b375c5d22e_dc5437974b471