TLS ClientHello (JA4)

t13d1807h2_796efca44d18_7395dae3b2f3

first seen 2026-08-18 15:39 · last seen 2026-10-27 16:02 · JSON

Inconsistencies

User-Agents observed with this fingerprint that contradict what it proves at the wire. all inconsistencies →

fingerprint User-Agent claims wire shows confidence seen first seen last seen

t13d1807h2_796efca44d18_7395dae3b2f3

Mozilla/5.0 (iPad; CPU OS 18_0 like Mac OS X) Ap…

User-Agent claims Firefox 138.0

TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-Agent	Mozilla/5.0 (iPad; CPU OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/138.0 Mobile/15E148 Safari/604.1
Claimed version	138.0
Measured versions	146.0.1, 154.0, 140.0.2, 157.0.1, 151.0.2, 155.0, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 156.0.1, 132.0, 152.0.3, 141.0, 153.0, 151.0.3, 156.0, 152.0.4, 151.0, 152.0.1, 151.0.4, 139.0, 153.0.1, 158.0.1, 152.0.5, 157.0, 158.0, 148.0.2, 137.0, 155.0.1, 159.0, 144.0.2, 154.0.1, 134.0
Layer	cipher suites differ
JA4 label	unlabeled

medium

2026-08-18

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

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`18`
Extension count	`7`
ALPN	`h2`
Ciphers	`002f, 0035, 009c, 009d, 00ff, 1301, 1302, 1303, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9`
Extensions	`000a, 000b, 000d, 002b, 0033`
Signature algorithms	`0806, 0601, 0603, 0805, 0501, 0503, 0804, 0401, 0403, 0201, 0203`
JA4_r	`t13d1807h2_002f,0035,009c,009d,00ff,1301,1302,1303,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_000a,000b,000d,002b,0033_0806,0601,0603,0805,0501,0503,0804,0401,0403,0201,0203`
JA4_o (sample)	`t13d1807h2_e0e368f06510_47fe7d3931e5`
JA4_ro (sample)	`t13d1807h2_1301,1303,1302,c02b,c02f,cca9,cca8,c02c,c030,c00a,c009,c013,c014,009c,009d,002f,0035,00ff_000b,002b,0000,000d,0010,0033,000a_0806,0601,0603,0805,0501,0503,0804,0401,0403,0201,0203`

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)

fingerprint	co-occurrences
`ge20nr09enus_1aea96d86f61_000000000000_000000000000`	2
`ge20nr09zhcn_1aea96d86f61_000000000000_000000000000`	2
`ge20nr09dede_8670b7ee0104_000000000000_000000000000`	1
`ge20nr09frfr_1aea96d86f61_000000000000_000000000000`	1
`ge20nn09jajp_8670b7ee0104_000000000000_000000000000`	1
`ge20nr09nlnl_1aea96d86f61_000000000000_000000000000`	1
`ge20nr09jajp_1aea96d86f61_000000000000_000000000000`	1
`ge20nn09eses_1aea96d86f61_000000000000_000000000000`	1
`ge20nr09arsa_1aea96d86f61_000000000000_000000000000`	1
`ge20nn09enin_1aea96d86f61_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`3:100;4:65536;2:0\|1048510465\|0\|m,s,a,p` Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +8 more.The fingerprint page shows the full measured match list. More on the catalog.	13

TCP SYN (p0f)

fingerprint	co-occurrences
`4:112+16:0:1460:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	12
`4:114+14:0:1336:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`65535_2-1-3-1-1-4_1460_8`	12
`65535_2-1-3-1-1-4_1336_8`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Mobile/15E148 Safari/604.1`	2
`Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPad; CPU OS 17_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPhone; CPU iPhone OS 17_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPhone; CPU iPhone OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/138.0.0.0 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPhone; CPU iPhone OS 16_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.7 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPad; CPU OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/138.0 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPad; CPU OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/{_FM}.0 Mobile/15E148 Safari/604.1`	1
`Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/{_FM}.0 Mobile/15E148 Safari/604.1`	1

Country

fingerprint	co-occurrences
`IN` · India	12
`EE` · Estonia	1

Network (ASN)

fingerprint	co-occurrences
`AS55836` · Reliance Jio Infocomm Limited	12
`AS34702` · Aktsiaselts WaveCom	1

TLS supported groups

fingerprint	co-occurrences
`001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.	1