User-Agent

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36

first seen 2026-06-23 11:51 · last seen 2026-09-14 04:54 · JSON

Last 7 days (3 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

Browser / clientChrome 39.0.2171.95
Operating systemmacOS 10.10.1
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
t13d1411h2_cbb2034c60b8_e7c2852226519

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr020000_fb4f949fd323_000000000000_0000000000008
ge20nr030000_0db47b7d240d_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.9

TCP SYN (p0f)

fingerprintco-occurrences
4:122+6:0:1420:mss*46,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:08
4:119+9:0:1420:mss*46,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:01

TCP SYN (JA4T)

fingerprintco-occurrences
65320_2-1-3-1-1-4_1420_88

Country

fingerprintco-occurrences
US · United States6
NL · Netherlands2
BE · Belgium1

Network (ASN)

fingerprintco-occurrences
AS396982 · Google LLC9