TLS ClientHello (JA4)

t13d1410h2_f98f5dc5c741_4c1ab0552904

first seen 2026-08-26 06:55 · last seen 2026-10-28 21:28 · JSON

Last 7 days (10 observations)

Distinct clients per day (last 30 days, peak 4/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

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count14
Extension count10
ALPNh2
Ciphers002f, 0035, 009c, 009d, 00ff, 1301, 1302, 1303, c013, c014, c02b, c02c, c02f, c030
Extensions000a, 000b, 000d, 0015, 0017, 002b, 002d, 0033
Signature algorithms0601, 0603, 0806, 0501, 0503, 0805, 0401, 0403, 0804, 0201, 0203
JA4_rt13d1410h2_002f,0035,009c,009d,00ff,1301,1302,1303,c013,c014,c02b,c02c,c02f,c030_000a,000b,000d,0015,0017,002b,002d,0033_0601,0603,0806,0501,0503,0805,0401,0403,0804,0201,0203
JA4_o (sample)t13d1410h2_571d843948d1_c4c660e82fea
JA4_ro (sample)t13d1410h2_1302,1301,1303,c02c,c030,c02b,c02f,009d,009c,c014,c013,0035,002f,00ff_0000,000b,000a,0010,0017,000d,002b,002d,0033,0015_0601,0603,0806,0501,0503,0805,0401,0403,0804,0201,0203

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.

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr12enus_54b4638ab28b_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, chrome 151.0.7922.137, +58 more.The fingerprint page shows the full measured match list. More on the catalog.20
ge20nr12enus_c0858481ddaa_000000000000_0000000000005
ge20nr12engb_54b4638ab28b_000000000000_0000000000004
ge20nr13enus_5907f7c6644a_000000000000_0000000000004
ge20nr12enbe_54b4638ab28b_000000000000_0000000000004
ge20nr13enus_680642adcff9_000000000000_0000000000002
ge20nn13enus_0c2c1d640f3e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 151.0.7922.137, chrome 151.0.7922.170, chrome 151.0.7922.108, +36 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nn13engb_9519c2577190_000000000000_0000000000001
ge20nr13enus_0c2c1d640f3e_000000000000_0000000000001
ge20nr14enus_3fb598f484fb_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:4096;2:0;3:100;4:6291456;5:16384;6:65535|2147418112|1:0:0:220|m,a,s,p28
1:4096;2:0;3:100;4:6291456;5:16384;6:65535|2147418112|1:0:0:256|m,a,s,p16
1:4096;2:0;3:100;4:6291456;5:16384;6:65535|2147418112|3:0:0:220|m,a,s,p2
1:4096;2:0;3:100;4:6291456;5:16384;6:65535|2147418112|5:0:0:220|m,a,s,p2
1:4096;2:0;3:100;4:6291456;5:16384;6:65535|2147418112|3:0:0:256|m,a,s,p1
1:4096;2:0;3:100;4:6291456;5:16384;6:65535|2147418112|5:0:0:256|m,a,s,p1

TCP SYN (p0f)

fingerprintco-occurrences
4:121+7:0:1343:65535,8:mss,nop,ws,nop,nop,sok:df,id+:023
4:48+16:0:1360:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:08
4:42+22:0:1360:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:06
4:48+16:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:03
4:48+16:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:03
4:49+15:0:1260:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:03
4:57+7:0:1343:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:03
4:105+23:0:1432:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-4_1343_823
65535_2-1-3-1-1-8-4-0-0_1360_614
65535_2-1-3-1-1-8-4-0-0_1460_66
65535_2-1-3-1-1-8-4-0-0_1260_63
65535_2-1-3-1-1-8-4-0-0_1343_63
64240_2-1-3-1-1-4_1432_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.36 Edg/154.0.0.011
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.368
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36 Edg/151.0.0.06
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.366
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36 Edg/155.0.0.06
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36 Edg/155.0.0.06
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.363
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
BE · Belgium14
GB · United Kingdom12
US · United States8
NL · Netherlands6
NO · Norway3
CA · Canada3
FR · France3
PL · Poland1

Network (ASN)

fingerprintco-occurrences
AS394089 · Google LLC26
AS39686 · Eurofiber Nederland BV14
AS3917 · Shell Information Technology International B.V.6
AS15659 · NextGenTel AS3
AS39914 · Narodowy Fundusz Zdrowia1

TLS supported groups

fingerprintco-occurrences
0017,0018,001d10