This is the example that we measure the latency of the content server IP which resolved by the public DNS Server. The concept it simple that we measure the latency. For the further development, we will auto the measurement process by accessing the domain content header to determine the actual access processing time.The following is the measurement of the top 10 domain name for reference.

ISP: 1
----05/06/2021 5:00:02 pm ----
www.yahoo.com
www.google.com
www.microsoft.com
www.facebook.com
www.youtube.com
www.baidu.com
www.twitter.com
www.instagram.com
www.amazon.com
www.qq.com
www.reddit.com
www.naver.com
www.bing.com
www.linkedin.com


DNS ServerDomainIPLowest LatencyAS
1.2.4.8 www.yahoo.com 98.137.11.164 18.613 AS36647
9.9.9.9 www.google.com 142.250.64.100 3.831 AS15169
8.8.8.8 www.microsoft.com 184.86.217.183 4.041 AS20940
64.6.64.6 www.facebook.com 157.240.15.35 4.692 AS32934
208.67.222.222 www.youtube.com 172.217.10.142 3.909 AS15169
1.1.1.1 www.baidu.com 103.235.46.39 5.947 AS55967
1.2.4.8 www.twitter.com 104.244.42.1 6.666 AS13414
208.67.222.222 www.instagram.com 157.240.15.174 4.877 AS32934
74.82.42.42 www.amazon.com 23.78.217.119 4.060 AS20940
208.67.222.222 www.qq.com 59.151.129.125 2.865 AS24319
208.67.222.222 www.reddit.com 151.101.77.140 5.344 AS54113
1.1.1.1 www.naver.com 104.71.48.248 3.934 AS16625
8.8.8.8 www.bing.com 204.79.197.200 4.328 AS8068
74.82.42.42 www.linkedin.com 13.107.42.14 4.617 AS8075