go
www.yahoo.it has one IP number , via cname to www.euro.fyeu.b.yahoo.com , but the reverse is www.vip.ird.yahoo.com. gr.yahoo.com, dk.yahoo.com, fr.yahoo.com, fi.yahoo.com, www.yahoo.fr and at least 17 other hosts point to the same IP. yahoo.it is a domain controlled by five nameservers at yahoo.com. All of them are on different IP networks. Incoming mail for yahoo.it is handled by six mailservers having a total of eight IP numbers. Some of them are on the same IP network. yahoo.it has two IP numbers. They are on different IP networks. www.yahoo.it is hosted on a server in United Kingdom even though the hostname implies Italy.

www.yahoo.it
cname records
www.euro.fyeu.b.yahoo.com
+ 217.146.186.51 217.146.184.0/21 AS34010 www.vip.ird.yahoo.com
+ --- www.vip.ird.yahoo.com

*.yahoo.it
a records
 
+ 87.248.121.75 87.248.120.0/21 AS42173  
+ ---  

yahoo.it
a records
 
+ 87.248.121.75 87.248.120.0/21 AS42173  
+ ---  
+ 217.146.186.221 217.146.184.0/21 AS34010  
ns-soa records
ns1.yahoo.com
+ 68.180.131.16 68.180.131.0/24 AS10880 -
+ --- -
ns records
ns1.yahoo.com
+ 68.180.131.16 68.180.131.0/24 AS10880 -
+ --- -
ns2.yahoo.com
+ 68.142.255.16 68.142.255.0/24 AS7280 -
ns3.yahoo.com
+ 121.101.152.99 121.101.152.0/23 AS23879 -
ns5.yahoo.com
+ 119.160.247.124 119.160.240.0/20 AS10229 -
ns7.yahoo.com
+ 68.142.226.82 68.142.224.0/20 AS14779 -
mx records
a.mx.mail.yahoo.com
+ 67.195.168.31 67.195.160.0/19 AS14778 mta-v1.mail.vip.ac4.yahoo.com
+ --- mta-v1.mail.vip.ac4.yahoo.com
b.mx.mail.yahoo.com
+ 66.196.82.7 66.196.80.0/21 AS14779 mta-v15.mail.vip.re1.yahoo.com
+ --- mta-v15.mail.vip.re1.yahoo.com
+ 74.6.136.65 74.6.128.0/20 AS14777 mta-v1.mail.vip.sk1.yahoo.com
+ --- mta-v1.mail.vip.sk1.yahoo.com
c.mx.mail.yahoo.com
+ 206.190.54.127 206.190.32.0/19 AS14779 mta-v1.mail.vip.re4.yahoo.com
+ --- mta-v1.mail.vip.re4.yahoo.com
+ 209.191.88.254 209.191.64.0/18 AS14780 mta-v1.mail.vip.mud.yahoo.com
+ --- mta-v1.mail.vip.mud.yahoo.com
e.mx.mail.yahoo.com
+ 67.195.168.230 67.195.160.0/19 AS14778 mta-v2.mail.vip.ac4.yahoo.com
+ --- mta-v2.mail.vip.ac4.yahoo.com
f.mx.mail.yahoo.com
+ 98.137.54.237 98.137.32.0/19 AS36752 mta-v1.mail.vip.sp2.yahoo.com
+ --- mta-v1.mail.vip.sp2.yahoo.com
g.mx.mail.yahoo.com
+ 98.137.54.238 98.137.32.0/19 AS36752 mta-v2.mail.vip.sp2.yahoo.com
+ --- mta-v2.mail.vip.sp2.yahoo.com
ip numbers of host
217.146.186.51
ptrs of ip numbers
www.vip.ird.yahoo.com
hostnames sharing ip with a-records
dk.yahoo.com
es.yahoo.com
fi.yahoo.com
fr.yahoo.com
gr.yahoo.com
ie.yahoo.com
nl.yahoo.com
uk.yahoo.com
www.euro.fy.b.yahoo.com
www.euro.fyeu.b.yahoo.com
www.euro.yahoo-eu1.akadns.net
www.euro.yahoo.akadns.net
www.vip.ird.yahoo.com
www.yahoo.at
www.yahoo.ch
www.yahoo.co.uk
www.yahoo.dk
www.yahoo.es
www.yahoo.fr
www.yahoo.gr
www.yahoo.nl
www.yahoo.no
www.yahoo.pl
cname
www.euro.fyeu.b.yahoo.com