TLS supported groups

0017,0018,001d

first seen 2026-10-20 16:33 · last seen 2026-10-28 21:28 · JSON

Last 7 days (10 observations)

Distinct clients per day (last 30 days, peak 2/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 order0017 (secp256r1), 0018 (secp384r1), 001d (x25519)
Group count3
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
t13d1410h2_f98f5dc5c741_4c1ab055290410
t13d1010h2_561a47a994ce_4c1ab05529043

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr12enbe_54b4638ab28b_000000000000_0000000000004
ge20nr12engb_54b4638ab28b_000000000000_0000000000002
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.2
ge20nn13engb_9519c2577190_000000000000_0000000000001
ge20nr12enus_c0858481ddaa_000000000000_0000000000001
ge20nn13enbe_0e897bb088aa_000000000000_0000000000001
ge20nn13enbe_0c2c1d640f3e_000000000000_0000000000001
ge20nr13plpl_9519c2577190_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,p8
1:4096;2:0;3:100;4:6291456;5:16384;6:65535|2147418112|1:0:0:256|m,a,s,p5

TCP SYN (p0f)

fingerprintco-occurrences
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
4:121+7:0:1343:65535,8:mss,nop,ws,nop,nop,sok:df,id+:03
4:49+15:0:1260:65535,6: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_2-1-3-1-1-8-4-0-0_1460_66
65535_2-1-3-1-1-8-4-0-0_1260_63
65535_2-1-3-1-1-4_1343_83
64240_2-1-3-1-1-4_1432_81

User-Agent

fingerprintco-occurrences
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 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36 Edg/155.0.0.03
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 · Belgium6
NO · Norway3
GB · United Kingdom3
PL · Poland1

Network (ASN)

fingerprintco-occurrences
AS39686 · Eurofiber Nederland BV6
AS15659 · NextGenTel AS3
AS394089 · Google LLC3
AS39914 · Narodowy Fundusz Zdrowia1