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 2026-09-16 14:07 · JSON

Bot verification

This User-Agent declares a bot or user-triggered fetcher. Each connection's IP is checked at ingest against the verification channels the operator publishes — its crawler IP ranges and, where documented, forward-confirmed reverse DNS. A claim either channel confirms is identified; one confirmed by neither — outside the ranges, inside a different operator's, or failing the DNS check — is an impersonation signal. Meta publishes its network rather than crawler ranges, so its identified claims are network-confirmed and its unconfirmed misses are unverified claims, not proven spoofs. bot-claim anomalies →

claims	identified	unconfirmed miss	wrong operator	unconfirmed rate
OAI-SearchBot	327	0	0	0.0%

Last 7 days (38 observations)

Distinct clients per day (last 30 days, peak 7/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 / client	`OAI-SearchBot 1.0`
Operating system	`macOS 10.15.7`
Device class	`bot`
Declared URL	`https://openai.com/searchbot`
Note	`inferred 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)

fingerprint	co-occurrences
`t13d1712h2_5b57614c22b0_ef7df7f74e48`	293
`t13d1713h2_5b57614c22b0_02c8e53ee398`	60
`t13d1712h2_5b57614c22b0_d5fe2c511efa`	31
`t13d1412h2_e33ad33b3d25_6b314db333b6`	2

HTTP request (JA4H)

fingerprint	co-occurrences
`ge20nn060000_ae91ff777030_000000000000_000000000000`	308
`ge20nn070000_f327ee591e3a_000000000000_000000000000`	76
`ge20nn140000_08481e7494b3_000000000000_000000000000`	2

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`2:0;1:4096;8:0;3:1024;4:1048576\|25100289\|0\|a,p,m,s`	384
`2:0;3:1;4:8388608;5:65536\|8323073\|0\|m,s,a,p`	2

TCP SYN (p0f)

fingerprint	co-occurrences
`4:47+17:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	112
`4:48+16:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	104
`4:43+21:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	92
`4:44+20:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	48
`4:42+22:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	12
`4:46+18:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	10
`4:45+19:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	5
`4:52+12:0:1460:65535,13:mss,sok,ts,nop,ws:df,id+:0`	2
`4:41+23:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64860_2-4-8-1-3_1368_9`	306

Country

fingerprint	co-occurrences
`US` · United States	386

Network (ASN)

fingerprint	co-occurrences
`AS8075` · Microsoft Corporation	384
`AS13335` · Cloudflare, Inc.	2