TLS ClientHello (JA4)

t13d3113h2_e8f1e7e78f70_1b3407e2c936

first seen 2026-06-30 02:04 · last seen 2026-09-15 15:53 · JSON

Last 7 days (108 observations)

Distinct clients per day (last 30 days, peak 5/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 count13
ALPNh2
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, 002b, 002d, 0031, 0033, 3374
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_rt13d3113h2_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,0015,0016,0017,002b,002d,0031,0033,3374_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)t13d3113h2_d7c3e2abb617_8f7eca04e4c8
JA4_ro (sample)t13d3113h2_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,3374,0010,0016,0017,0031,000d,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
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog.105
ge20nr030000_ff50983941c1_000000000000_00000000000014
ge20nn010000_c125d0397b60_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.13.4, rust-reqwest 0.12.28, rust-reqwest 0.11.27, +2 more.The fingerprint page shows the full measured match list. More on the catalog.2
ge20nn10enus_17421c874a9b_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:33554432;2:0|33488897|0|m,p,s,a Match?Exact match in Thumbprint's published controlled catalog captures: php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.122

TCP SYN (p0f)

fingerprintco-occurrences
4:54+10:0:1460:32768,10:mss,nop,ws,sok,ts::012
6:112+16:0:1440:65535,8:mss,nop,ws,nop,nop,sok:flow:03
6:48+16:0:1380:65535,9:mss,sok,ts,nop,ws:flow:03
6:48+16:0:1326:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:flow:03
6:48+16:0:1440:mss*44,7:mss,sok,ts,nop,ws:flow:03
6:46+18:0:1380:65535,9:mss,sok,ts,nop,ws:flow:03
6:46+18:0:1326:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:flow:03
6:46+18:0:1440:mss*44,7:mss,sok,ts,nop,ws:flow:03
6:110+18:0:1440:65535,8:mss,nop,ws,nop,nop,sok:flow:03
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
32768_2-1-3-4-8_1460_1013
65535_2-1-3-1-1-4_1440_86
65535_2-4-8-1-3_1380_96
65535_2-1-3-1-1-8-4-0-0_1326_66
63360_2-4-8-1-3_1440_76
64240_2-4-8-1-3_1460_73
65535_2-4-8-1-3_1376_82
65535_2-1-3-1-1-4_1293_82
65535_2-1-3-1-1-8-4-0-0_1232_62
65535_2-4-8-1-3_1329_82

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0 Safari/537.3680
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0 Safari/537.3624
Mozilla/5.0 (Linux; Android 8.1.0; PVG100) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Mobile Safari/537.363
Mozilla/5.0 (Linux; U; Android 10; SM-A600FN Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 OPR/47.2.2254.1479573
Mozilla/5.0 (Linux; Android 6.0.1; SM-J710GN) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Mobile Safari/537.362
Mozilla/5.0 (Linux; Android 9; SM-G610M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Mobile Safari/537.362
Mozilla/5.0 (Linux; Android 10; TAS-AL00) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Mobile Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64)1
Mozilla/5.0 (Linux; U; Android 5.1.1; en-US; SM-J500F Build/LMY48B) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.13.5.1209 Mobile Safari/537.361

Country

fingerprintco-occurrences
RU · Russia107
NL · Netherlands14
DE · Germany1

Network (ASN)

fingerprintco-occurrences
AS12389 · PJSC Rostelecom51
AS25159 · PJSC MegaFon29
AS215125 · Church of Cyberology13
AS35807 · SkyNet Ltd.12
AS29226 · JSC Mastertel12
AS28762 · Citytelecom LLC3
AS13043 · Bayer AG1
AS60404 · Liteserver1