ANALYSIS
Alt17.gstatic.com has four name servers and 18 IP numbers.
Google name servers
The name servers are ns1.google.com, ns2.google.com, ns3.google.com and ns4.google.com.
IP numbers
The IP numbers are 2607:f8b0:4004:801::2003, 2607:f8b0:400d:c0f::5e, 2607:f8b0:4020:804::2003, 2607:f8b0:4020:807::2003, 2800:3f0:4005:400::2003, 2a00:1450:400a:802::2003, 2a00:1450:400f:80b::2003, 2a00:1450:4017:801::2003, 2a00:1450:401b:800::2003, 172.217.7.195, 172.217.13.99, 172.217.17.195, 172.217.28.99, 172.217.168.35, 172.217.197.94, 172.217.197.120, 216.58.207.195 and 216.58.209.35. The PTRs of the IP numbers are iad30s10-in-x03.1e100.net, yul02s04-in-x03.1e100.net, yul03s05-in-x03.1e100.net, zrh04s14-in-x03.1e100.net, arn11s04-in-x03.1e100.net, sof02s22-in-x03.1e100.net, waw02s05-in-x03.1e100.net, waw07s02-in-x03.1e100.net, iad30s10-in-f195.1e100.net, iad30s10-in-f3.1e100.net, yul02s04-in-f3.1e100.net, sof02s22-in-f195.1e100.net, sof02s22-in-f3.1e100.net, bog02s07-in-f3.1e100.net, gru06s09-in-f99.1e100.net, zrh04s14-in-f3.1e100.net, arn11s04-in-f3.1e100.net, mil07s12-in-f3.1e100.net, waw02s05-in-f3.1e100.net and waw02s05-in-f35.1e100.net. The IP numbers are in different countries. They are hosted by Google.