Shell script to test the performance of the most popular DNS resolvers from your location.
Includes by default:
- Cisco OpenDNS - 208.67.222.123
- CIRA Canadian Shield - 149.112.121.10
- Cloudflare - 1.1.1.1
- Comodo Secure - 8.20.247.20
- Google - 8.8.8.8
- Quad9 - 9.9.9.9
You need to install bc and dig.
For Ubuntu:
$ sudo apt-get install bc dnsutils
For macOS using homebrew:
$ brew install bc bind
$ git clone --depth=1 https://github.com/mtlnog/dnsperftest/
$ cd dnsperftest
$ bash ./dnstest.sh
test1 test2 test3 test4 test5 test6 test7 test8 test9 Average
127.0.0.53 1 ms 12 ms 1 ms 1 ms 1 ms 1 ms 1 ms 12 ms 1 ms 3.44
CloudflareDNS 4 ms 4 ms 4 ms 1 ms 4 ms 1 ms 1 ms 4 ms 1 ms 2.66
GooglePublicDNS 1 ms 8 ms 1 ms 4 ms 1 ms 1 ms 1 ms 16 ms 44 ms 8.55
ComodoSecureDNS 8 ms 16 ms 8 ms 12 ms 8 ms 8 ms 8 ms 8 ms 8 ms 9.33
Quad9 4 ms 8 ms 8 ms 4 ms 4 ms 4 ms 1 ms 4 ms 4 ms 4.55
CIRA-CanadianShield 8 ms 8 ms 4 ms 8 ms 8 ms 8 ms 8 ms 8 ms 8 ms 7.55
Cisco-OpenDNS 8 ms 20 ms 16 ms 32 ms 28 ms 4 ms 8 ms 44 ms 36 ms 21.77
To sort with the fastest first, add sort -k 20 -n at the end of the command:
$ bash ./dnstest.sh | sort -k 20 -n
test1 test2 test3 test4 test5 test6 test7 test8 test9 Average
CloudflareDNS 1 ms 1 ms 1 ms 4 ms 1 ms 4 ms 4 ms 4 ms 4 ms 2.66
127.0.0.53 12 ms 12 ms 1 ms 1 ms 1 ms 1 ms 4 ms 8 ms 1 ms 4.55
CIRA-CA_Shield 8 ms 8 ms 8 ms 8 ms 4 ms 4 ms 8 ms 8 ms 8 ms 7.11
GooglePublicDNS 16 ms 12 ms 4 ms 16 ms 4 ms 1 ms 1 ms 12 ms 1 ms 7.44
Quad9 12 ms 28 ms 4 ms 4 ms 20 ms 1 ms 1 ms 40 ms 1 ms 12.33
ComodoSecureDNS 8 ms 20 ms 8 ms 8 ms 32 ms 8 ms 8 ms 132 ms 8 ms 25.77
Cisco-OpenDNS 56 ms 92 ms 8 ms 36 ms 40 ms 4 ms 8 ms 36 ms 8 ms 32.00
To test using the IPv6 addresses, add the "ipv6" option:
$ bash ./dnstest.sh ipv6 | sort -k 20 -n
test1 test2 test3 test4 test5 test6 test7 test8 test9 Average
CIRA-CA_Shield_v6 1 ms 1 ms 1 ms 1 ms 4 ms 1 ms 1 ms 4 ms 1 ms 1.66
CloudflareDNS_v6 4 ms 4 ms 8 ms 4 ms 4 ms 1 ms 4 ms 4 ms 1 ms 3.77
127.0.0.53 12 ms 12 ms 1 ms 1 ms 8 ms 1 ms 1 ms 12 ms 1 ms 5.44
GooglePublicDNS_v6 20 ms 12 ms 4 ms 16 ms 4 ms 4 ms 1 ms 12 ms 4 ms 8.55
Quad9_v6 1 ms 4 ms 16 ms 1 ms 44 ms 4 ms 1 ms 28 ms 4 ms 11.44
Cisco-OpenDNS_v6 92 ms 24 ms 8 ms 32 ms 44 ms 8 ms 8 ms 36 ms 8 ms 28.88
To test both IPv6 and IPv4, add the "all" option:
$ bash ./dnstest.sh all | sort -k 20 -n
test1 test2 test3 test4 test5 test6 test7 test8 test9 Average
CIRA-CA_Shield_v6 1 ms 1 ms 4 ms 1 ms 1 ms 4 ms 1 ms 4 ms 1 ms 2.00
Quad9 1 ms 1 ms 4 ms 1 ms 1 ms 1 ms 1 ms 4 ms 4 ms 2.00
CloudflareDNS_v6 1 ms 4 ms 16 ms 4 ms 1 ms 1 ms 1 ms 1 ms 4 ms 3.66
CIRA-CA_Shield 8 ms 8 ms 8 ms 8 ms 4 ms 8 ms 8 ms 4 ms 8 ms 7.11
GooglePublicDNS 4 ms 12 ms 1 ms 20 ms 12 ms 4 ms 1 ms 12 ms 1 ms 7.44
ComodoSecureDNS 8 ms 8 ms 8 ms 8 ms 8 ms 8 ms 8 ms 8 ms 8 ms 8.00
GooglePublicDNS_v6 1 ms 4 ms 12 ms 20 ms 4 ms 4 ms 1 ms 16 ms 16 ms 8.66
127.0.0.53 4 ms 12 ms 4 ms 1 ms 1 ms 1 ms 4 ms 80 ms 1 ms 12.00
Quad9_v6 4 ms 164 ms 1 ms 1 ms 4 ms 8 ms 1 ms 1 ms 1 ms 20.55
Cisco-OpenDNS_v6 36 ms 128 ms 20 ms 8 ms 24 ms 8 ms 8 ms 36 ms 8 ms 30.66
CloudflareDNS 260 ms 1 ms 8 ms 4 ms 4 ms 4 ms 1 ms 1 ms 1 ms 31.55
Cisco-OpenDNS 40 ms 92 ms 8 ms 28 ms 28 ms 8 ms 8 ms 40 ms 40 ms 32.44