User-Agent

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36

first seen 2026-07-20 17:01 · last seen 2026-07-30 03:52 · JSON

Decomposed attributes

Browser / clientChrome 66.0.3359.139
Operating systemmacOS 10.13.2
Device classdesktop
Noteinferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above

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
t13d4412h1_fd39b124ee10_58ed7828516f27

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.27

TCP SYN (p0f)

fingerprintco-occurrences
4:46+18:0:1452:mss*4,4:mss,sok,ts,nop,ws:df,id+:04
4:45+19:0:1452:mss*4,4:mss,sok,ts,nop,ws:df,id+:02
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:49+15:0:1400:65535,6:mss,sok,ts,nop,ws:df,id+:01
4:45+19:0:1400:65535,8:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1460:65535,6:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1452:65535,6:mss,sok,ts,nop,ws:df,id+:01
4:47+17:0:1452:mss*4,4:mss,sok,ts,nop,ws:df,id+:01
4:53+11:0:1412:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1452:mss*4,4:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
5808_2-4-8-1-3_1452_48
65535_2-4-8-1-3_1412_64
65535_2-4-8-1-3_1400_62
65535_2-4-8-1-3_1452_62
64240_2-4-8-1-3_1412_72
64240_2-4-8-1-3_1440_72
64240_2-4-8-1-3_1460_71
65535_2-4-8-1-3_1400_81
65535_2-4-8-1-3_1460_61
65535_2-4-8-1-3_1300_81

Country

fingerprintco-occurrences
VN · Vietnam9
MX · Mexico3
VE · Venezuela3
IQ · Iraq2
BR · Brazil1
RO · Romania1
KE · Kenya1
AE · United Arab Emirates1
EG · Egypt1
CO · Colombia1

Network (ASN)

fingerprintco-occurrences
AS45899 · VNPT Corp8
AS7552 · Viettel Group1
AS27699 · TELEFÔNICA BRASIL S.A1
AS17072 · TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.1
AS8452 · TE-AS1
AS15802 · Emirates Integrated Telecommunications Company PJSC1
AS3816 · COLOMBIA TELECOMUNICACIONES S.A. ESP BIC1
AS203214 · Hulum Almustakbal Company for Communication Engineering and Services Ltd1
AS199739 · Earthlink Telecommunications Equipment Trading & Services DMCC1
AS15399 · Wananchi Group (Kenya) Limited1