User-Agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) Chrome/136.0.0.0 Safari/537.36

first seen 2026-08-05 18:52 · last seen 2026-08-05 18:52 · 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
Bingbot	1	0	0	0.0%

Decomposed attributes

Browser / client	`Bingbot 2.0`
Device class	`bot`
Declared URL	`http://www.bing.com/bingbot.htm Chrome/136.0.0.0 Safari/537.36`
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
`t13d1013h2_01be160bb49b_e24568c0d440`	1

HTTP request (JA4H)

fingerprint	co-occurrences
`ge20nn070000_b9b17faf9a7f_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`2:0;4:10485760\|10420225\|0\|m,p,a,s`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`4:113+15:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64240_2-1-3-1-1-4_1440_8`	1

Country

fingerprint	co-occurrences
`US` · United States	1

Network (ASN)

fingerprint	co-occurrences
`AS8075` · Microsoft Corporation	1