User-Agent

Chrome Privacy Preserving Prefetch Proxy

first seen 2026-06-15 14:15 · last seen 2026-09-15 17:49 · JSON

Last 7 days (1 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 Privacy Preserving Prefetch Proxy
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
t13d181300_e8a523a41297_43ade6aba3df43

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn060000_a664e4fabf5b_000000000000_00000000000030
ge11nn050000_304165ead156_000000000000_00000000000012
ge11nn060000_c16ea3e00f1c_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:121+7:0:1412:65535,8:mss,sok,ts,nop,ws::031
4:115+13:0:1412:65535,8:mss,sok,ts,nop,ws::07
4:116+12:0:1412:65535,8:mss,sok,ts,nop,ws::03
4:117+11:0:1412:65535,8:mss,sok,ts,nop,ws::02

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1412_830

Country

fingerprintco-occurrences
BE · Belgium16
US · United States12
FI · Finland8
SG · Singapore6
TW · Taiwan1

Network (ASN)

fingerprintco-occurrences
AS15169 · Google LLC43