ANALYSIS
Csi.gstatic.com has 21 IP numbers.
IP numbers
The IP numbers are 2001:4860:4802:32::3, 2404:6800:400a:80b::2003, 2607:f8b0:400d:c0f::5e, 2800:3f0:4004:807::2003, 2a00:1450:4001:81d::2003, 2a00:1450:4007:816::2003, 2a00:1450:400c:c0b::5e, 2a00:1450:400e:80b::2003, 2a00:1450:4018:802::2003, 64.233.177.94, 64.233.177.120, 74.125.124.94, 74.125.124.120, 74.125.138.94, 74.125.138.120, 172.217.14.195, 172.217.22.67, 172.217.23.227, 172.217.31.227, 172.217.161.195 and 216.58.217.195. The PTRs of the IP numbers are kix07s03-in-x03.1e100.net, fra15s18-in-x03.1e100.net, par10s33-in-x03.1e100.net, wa-in-x5e.1e100.net, ams17s01-in-x03.1e100.net, mct01s05-in-x03.1e100.net, yx-in-f94.1e100.net, yx-in-f120.1e100.net, yi-in-f94.1e100.net, yi-in-f120.1e100.net, sea30s01-in-f3.1e100.net, fra15s17-in-f3.1e100.net, fra15s17-in-f67.1e100.net, prg03s06-in-f227.1e100.net, prg03s06-in-f3.1e100.net, hkg07s28-in-f3.1e100.net, kix07s03-in-f3.1e100.net, lax17s05-in-f195.1e100.net and lax17s05-in-f3.1e100.net. The IP numbers are in different countries. They are hosted by Google.