Re: Is there any tool in debian which helps us find what cdn does a website use ?
Hello,
On Sat, Jan 04, 2020 at 10:50:54AM +0000, shirish शिरीष wrote:
> I am interested to know if there is any other tool besides dig and
> delv, something like perhaps cdnfinder [6] which will make it more
> interesting to find things ?
Can't you just traceroute or mtr to the site in question to see
whose network it traverses last? Or do you need to programmatically
discover the CDN company? If so then looking up the Autonomous
System Number (ASN) of the IP address might be enlightening, e.g.:
$ host bbc.com
bbc.com has address 151.101.0.81
$ dig +short 81.0.101.151.origin.asn.cymru.com TXT # note reversed IP
"54113 | 151.101.0.0/22 | US | arin | 2016-02-01"
$ whois as54113
ASNumber: 54113
ASName: FASTLY
ASHandle: AS54113
(I omitted some uninteresting lines of output)
Cheers,
Andy
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