User-Agent

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.0; +https://openai.com/searchbot

first seen 2026-06-11 13:00 · last seen 2026-11-01 16:35 · JSON

Last 7 days (41 observations)

Distinct clients per day (last 30 days, peak 6/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 / clientOAI-SearchBot 1.0
Operating systemmacOS 10.15.7
Device classbot
Declared URLhttps://openai.com/searchbot
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
t13d1712h2_5b57614c22b0_ef7df7f74e48494
t13d1713h2_5b57614c22b0_02c8e53ee398103
t13d1712h2_5b57614c22b0_d5fe2c511efa61
t13d1412h2_e33ad33b3d25_6b314db333b62

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn060000_ae91ff777030_000000000000_000000000000582
ge20nn070000_f327ee591e3a_000000000000_00000000000076
ge20nn140000_08481e7494b3_000000000000_0000000000002

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;1:4096;8:0;3:1024;4:1048576|25100289|0|a,p,m,s658
2:0;3:1;4:8388608;5:65536|8323073|0|m,s,a,p2

TCP SYN (p0f)

fingerprintco-occurrences
4:43+21:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0213
4:44+20:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0192
4:47+17:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0112
4:48+16:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0104
4:42+22:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:021
4:46+18:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:010
4:45+19:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:05
4:52+12:0:1460:65535,13:mss,sok,ts,nop,ws:df,id+:02
4:41+23:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64860_2-4-8-1-3_1368_9580

Country

fingerprintco-occurrences
US · United States660

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation658
AS13335 · Cloudflare, Inc.2

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.111