Nisalon
Nisalon

Reputation: 343

Google Chrome issuing Head Request to random domains

Today I was investigating on something with Fiddler, when I noticed that, when I launch Google Chrome, I have always 3 HEAD requests to some domains which seem to be randomly chosen.

Here is a sample :

HEAD http://fkgrekxzgo/ HTTP/1.1
Host: fkgrekxzgo
Proxy-Connection: keep-alive
Content-Length: 0
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31
Accept-Encoding: gzip,deflate,sdch

Do you have any idea of why Google Chrome behaves this way ?

Thanks guys

Upvotes: 2

Views: 2442

Answers (2)

Martin
Martin

Reputation: 11

This algorithm seems unusable with forward proxy servers. Browser definitely asks for random page and proxy definitely returns some page -- error (50x), masked error (50x or 40x) or nice "you are lost" page with HTTP code 200 .

Upvotes: 1

user2655355
user2655355

Reputation: 56

This is Chrome checking to see if your ISP converts non-resolving domains into your.isp.com/search?q=randomnonresolvingdomain

See https://mikewest.org/2012/02/chrome-connects-to-three-random-domains-at-startup

Upvotes: 3

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