TLS ClientHello (JA4)

t13d311100_e8f1e7e78f70_24695f2957a7

first seen 2026-06-12 05:50 · last seen 2026-08-26 16:53 · 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

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count31
Extension count11
ALPN00
Ciphers002f, 0033, 0035, 0039, 003c, 003d, 0067, 006b, 009c, 009d, 009e, 009f, 00ff, 1301, 1302, 1303, c009, c00a, c013, c014, c023, c024, c027, c028, c02b, c02c, c02f, c030, cca8, cca9, ccaa
Extensions000a, 000b, 000d, 0015, 0016, 0017, 0023, 002b, 002d, 0033
Signature algorithms0403, 0503, 0603, 0807, 0808, 0809, 080a, 080b, 0804, 0805, 0806, 0401, 0501, 0601, 0303, 0203, 0301, 0201, 0302, 0202, 0402, 0502, 0602
JA4_rt13d311100_002f,0033,0035,0039,003c,003d,0067,006b,009c,009d,009e,009f,00ff,1301,1302,1303,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c,c02f,c030,cca8,cca9,ccaa_000a,000b,000d,0015,0016,0017,0023,002b,002d,0033_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0203,0301,0201,0302,0202,0402,0502,0602
JA4_o (sample)t13d311100_d7c3e2abb617_a39c8fe20b95
JA4_ro (sample)t13d311100_1302,1303,1301,c02c,c030,009f,cca9,cca8,ccaa,c02b,c02f,009e,c024,c028,006b,c023,c027,0067,c00a,c014,0039,c009,c013,0033,009d,009c,003d,003c,0035,002f,00ff_0000,000b,000a,0023,0016,0017,000d,002b,002d,0033,0015_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0203,0301,0201,0302,0202,0402,0502,0602

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
ge11nn030000_8f20187a09bb_000000000000_0000000000004
ge11nn05enus_813e32c09d15_000000000000_0000000000002
ge11nn10enus_3b7dd61c5217_000000000000_0000000000002
ge11nn040000_66d37a417839_000000000000_0000000000001
ge11nn040000_5b1e8b5f4d2d_000000000000_0000000000001
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn030000_0d34275228c4_000000000000_0000000000001
ge11nn12enus_dee490167315_000000000000_0000000000001
ge11nn15enus_2070b9eb36fd_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:57+7:0:1460:65535,9:mss,sok,ts,nop,ws:df,id+:04
4:51+13:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02
6:49+15:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:02
4:107+21:0:1360:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:111+17:0:1360:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
6:45+19:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01
4:53+11:0:1340:mss*48,10:mss,sok,ts,nop,ws:df,id+:01
4:58+6:0:1460:65535,9:mss,sok,ts,nop,ws:df,id+:01
6:59+5:0:1440:65535,9:mss,sok,ts,nop,ws:flow:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_95
64800_2-4-8-1-3_1440_73
64240_2-4-8-1-3_1460_102
64320_2-4-8-1-3_1340_101
65535_2-4-8-1-3_1440_91

User-Agent

fingerprintco-occurrences
git/2.39.24
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.362
Mozilla/5.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:117.0) Gecko/20100101 Firefox/117.01
curl/8.20.01
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.361
Python/3.9 aiohttp/3.8.11
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.01
CoveoVDP/1.0 (Intigriti; psychostim@intigriti.com; researcher; +https://www.intigriti.com)1

Country

fingerprintco-occurrences
DE · Germany4
US · United States3
SE · Sweden2
PL · Poland2
KH · Cambodia2
FR · France1

Network (ASN)

fingerprintco-occurrences
AS54113 · Fastly, Inc.6
AS147023 · ESURFING TECHNOLOGY CO.LTD2
AS5617 · Orange Polska Spolka Akcyjna2
AS62907 · ZSCALER, INC.2
AS11878 · tzulo, inc.1
AS29066 · velia.net Internetdienste GmbH1