====== Domain Name Speed Benchmark ======

===== DNS Benchmark =====
[[https://www.grc.com/dns/benchmark.htm|GRC's | DNS Nameserver Performance Benchmark]]\\

==== DNSBench のダウンロード ====
[[https://www.grc.com/dns/benchmark.htm|Domain Name Speed Benchmark]] より [[https://www.grc.com/files/DNSBench.exe|DNSBench.exe]] をダウンロードする。\\

==== DNSBench.exe の実行 ====
**DNSBench.exe** を実行する。\\
{{:hardware:gl-ar750s-ext:dnsbench_001.png?300|DNSBench 001}}
{{:hardware:gl-ar750s-ext:dnsbench_002.png?300|DNSBench 002}}
{{:hardware:gl-ar750s-ext:dnsbench_003.png?300|DNSBench 003}}
{{:hardware:gl-ar750s-ext:dnsbench_004.png?300|DNSBench 004}}

===== Public DNS Servers =====

==== Level 3 Communications Public DNS ====
[[https://www.centurylink.com/|Home & Business Internet, Phone, and TV | CenturyLink]]\\
<code>
4.2.2.1
4.2.2.2
4.2.2.3
4.2.2.4
4.2.2.5
4.2.2.6
</code>

==== Google Public DNS ====
[[https://developers.google.com/speed/public-dns|Public DNS  |  Google Developers]]\\
<code>
8.8.8.8
8.8.4.4
</code>

==== OpenDNS ====
[[https://www.opendns.com/|Cloud Delivered Enterprise Security by OpenDNS]]\\
<code>
208.67.222.222
208.67.220.220
</code>

===== 参考文献 =====
[[https://www.publicdns.xyz/|Public DNS Server]]\\
[[http://akogipc.seesaa.net/article/153584306.html|どのフリーDNSサーバが速いかを比較してみました: アコギとPCと]]\\