Question about Bing Preview

Bing preview being used as a proxy?

[SumGuy]

When I see hits from Bing Preview (and these are not forged or fake) do those hits represent hits by real people (or maybe bots I guess) that are using Preview to browse my site (ie using Preview as a proxy)?

[TorontoBoy]

I think Bing Preview is a bot like any other and not a request from a human. Bing Preview acts like a bot. The request headers do not return any language info for the browser, meaning it is not a human.

40.77.190.100 [14/Oct/2018:01:57:22 GET /wp-includes/js/mediaelement/mediaelement-flash-video.swf HTTP/1.1 404 16554 - Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53 BingPreview/1.0b

Request Header Log entry

2018-10-14:05:57:22
URL: /wp-includes/js/mediaelement/mediaelement-flash-video.swf
IP: 40.77.190.100
Accept: */*
Accept-Encoding:
Cache-Control: no-cache
Connection: Keep-Alive
Host: example.com
Pragma: no-cache
User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53 BingPreview/1.0b