User-Agent

DuckAssistBot/1.1 (https://duckduckgo.com/duckassistbot)

first seen 2026-09-11 19:06 · last seen 2026-09-13 10:37 · JSON

Last 7 days (6 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 / clientDuckAssistBot 1.1
Device classbot
Declared URLhttps://duckduckgo.com/duckassistbot
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
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog.6

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn050000_857b5fa3405d_000000000000_0000000000002
ge20nn050000_277e78b0d503_000000000000_0000000000002
ge20nn050000_bb384e635ab6_000000000000_0000000000001
ge20nn050000_7e80a5f53adf_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;5:16384;6:262144;1:65536|1073741824|0|a,m,p,s6

TCP SYN (p0f)

fingerprintco-occurrences
4:58+6:0:1420:mss*46,10:mss,sok,ts,nop,ws:df,id+:06

TCP SYN (JA4T)

fingerprintco-occurrences
65320_2-4-8-1-3_1420_106

Country

fingerprintco-occurrences
US · United States6

Network (ASN)

fingerprintco-occurrences
AS396982 · Google LLC6