Note: This script is a majorly overhauled fork.
Shell script to test the performance of the most popular DNS resolvers from your location.
The accompanying ipv4 and ipv6 text files contain the redundant servers of notable DNS providers by default, including:
- AdGuard
- CleanBrowsing
- Cloudflare (aka 1.1.1.1)
- Comodo
- DNS.Watch
- Google (aka 8.8.8.8)
- Level3 (aka 4.2.2.1)
- Neustar
- OpenDNS (aka 208.67.222.222)
- OracleDyn
- Quad9 (aka 9.9.9.9)
...as well as the redundant servers of these other well-known providers (and many more):
- AlternateDNS
- ControlD
- DNSFilter
- Freenom
- NextDNS
- NortonCS
- SafeDNS
- UncensoredDNS
- Verisign
- Yandex
13 default domain names are tested, with many others available as toggleable in the accompanying text files, or simply add your own:
- docker.io
- github.com
- gmail.com
- www.amazon.com
- www.apple.com
- www.facebook.com
- www.google.com
- www.paypal.com
- www.reddit.com
- www.twitter.com
- www.wikipedia.org
- www.yahoo.com
- www.youtube.com
digneeds to be in the PATH. If you don't have it, the script will provide instructions for where to get it.bcis no longer a requirement of this script since being forked.awkis used instead for greater wide-spread availability - particularly for Synology. (this need was what initially prompted the creation of this fork)
# bash dnsreload.sh && bash dnstest.sh
CHECKING FOR LOCAL DNS SERVER AND FLUSHING CACHE
Local DNS: tcp/53 pihole-FTL (pid:31093)
Type: docker (pihole)
Action: Reloading Pi-hole DNS (pihole-FTL)
TESTING DOMAINS (dnstest.domains.txt)
Test# Domain Name
------ ---------------
t1 docker.io
t2 github.com
t3 gmail.com
t4 www.amazon.com
t5 www.apple.com
t6 www.facebook.com
t7 www.google.com
t8 www.paypal.com
t9 www.reddit.com
t10 www.twitter.com
t11 www.wikipedia.org
t12 www.yahoo.com
t13 www.youtube.com
LOCAL THEN ALPHABETICAL BY SERVER (dnstest.log)
Server t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t13 Median ms
---------------- --- --- --- --- --- --- --- --- --- --- --- --- --- ---------
pihole-FTL/I 32 21 24 30 44 67 17 19 18 20 52 19 19 29.38 ms
pihole-FTL/C 1 1 1 1 1 1 1 1 2 1 1 2 5 1.46 ms
nameserver/1 19 26 29 31 36 66 19 18 15 19 91 19 39 32.85 ms
nameserver/2 17 22 24 23 87 17 18 18 18 19 86 18 51 32.15 ms
114DNS/1 19 18 19 17 20 19 19 19 18 23 18 16 19 18.77 ms
114DNS/2 18 17 17 19 17 17 17 19 24 19 18 22 18 18.62 ms
AdGuard/1 18 19 18 18 19 17 18 19 19 18 19 20 18 18.46 ms
AdGuard/2 19 19 18 20 19 19 19 19 18 20 18 20 17 18.85 ms
AliDNS/1 182 185 181 187 185 183 189 180 193 184 180 187 184 184.62 ms
AliDNS/2 195 181 190 180 194 186 190 180 182 194 181 194 176 186.38 ms
AlternateDNS/1 * * * * * * * * * * * * * NR 13-to
AlternateDNS/2 * * * * * * * * * * * * * NR 13-to
CenturyLink/1 61 25 26 31 27 27 25 28 30 25 28 31 25 29.92 ms
CenturyLink/2 44 28 35 28 29 27 34 28 29 34 28 29 27 30.77 ms
ChinaTCL-UNC/1 * * * * * 182 * * * 181 * * 184 811.31 ms
ChinaTCL-UNC/2 * * * * * 191 * * * 188 * * 188 812.85 ms
CleanBrowsing/1 24 17 17 19 18 19 19 20 19 18 24 18 24 19.69 ms
CleanBrowsing/2 160 160 167 155 160 160 161 154 159 159 159 159 159 159.38 ms
Cloudflare/1 27 14 13 13 13 62 28 14 13 16 13 13 118 27.46 ms
Cloudflare/2 12 9 15 12 14 15 13 15 9 13 54 13 13 15.92 ms
CNNICSDNS/1 254 256 355 361 263 250 249 * 396 259 811 261 242 381.31 ms
CNNICSDNS/2 421 267 467 255 260 256 412 * 243 225 335 353 305 369.15 ms
Comodo/1 * * * * * * * * * * * * * NR 13-to
Comodo/2 * * * * * * * * * * * * * NR 13-to
ControlD/1 21 23 21 30 26 21 21 26 16 23 22 27 18 22.69 ms
ControlD/2 19 17 12 20 20 27 19 17 20 24 19 17 23 19.54 ms
DNSFilter/1 19 17 18 19 17 14 19 20 19 18 19 18 22 18.38 ms
DNSFilter/2 24 23 18 13 18 19 18 17 24 19 14 25 19 19.31 ms
DNSpai/1 159 207 312 * 171 151 159 166 164 151 159 174 149 240.15 ms
DNSpai/2 199 279 361 221 201 190 197 194 221 192 203 219 192 220.69 ms
DNSPodDNS+/1 445 427 433 414 400 506 412 381 383 375 449 378 406 416.08 ms
DNSPodDNS+/2 275 249 207 186 190 201 211 207 189 251 204 248 196 216.46 ms
DNS.WATCH/1 169 178 * 184 * * 180 166 * 164 * * * 618.54 ms
DNS.WATCH/2 166 158 177 153 168 156 156 166 156 156 153 154 156 159.62 ms
Freenom/1 93 70 112 26 27 25 25 170 101 154 202 26 26 81.31 ms
Freenom/2 23 26 25 23 25 27 26 27 33 26 28 27 27 26.38 ms
Google/1 18 21 32 31 18 19 17 18 16 18 28 21 18 21.15 ms
Google/2 19 19 19 28 17 19 19 18 16 13 52 19 19 21.31 ms
Level3/1 26 14 24 18 22 19 19 18 20 18 17 25 18 19.85 ms
Level3/2 19 18 19 19 24 21 20 24 21 18 24 18 13 19.85 ms
Neustar/1 37 29 45 31 31 27 41 42 30 44 34 31 35 35.15 ms
Neustar/2 93 30 25 20 26 27 20 19 12 12 22 17 18 26.23 ms
NextDNS/1 15 23 18 19 18 18 15 17 19 19 19 19 26 18.85 ms
NextDNS/2 25 18 16 26 21 18 19 18 14 20 18 18 17 19.08 ms
NortonCS/1 31 20 19 19 20 18 19 19 24 17 17 20 20 20.23 ms
NortonCS/2 29 40 31 33 28 31 31 32 32 30 32 30 31 31.54 ms
OneDNS/1 * * * * * 172 * * * 171 * * 172 808.85 ms
OneDNS/2 180 388 178 183 224 171 195 234 177 171 184 181 172 202.92 ms
OpenDNS/1 23 19 25 29 30 20 18 29 18 19 50 21 20 24.69 ms
OpenDNS/2 12 14 17 26 29 36 17 18 17 13 18 20 18 19.62 ms
OracleDyn/1 227 76 75 73 78 75 75 79 82 70 166 73 76 94.23 ms
OracleDyn/2 137 76 75 75 77 79 73 73 77 76 144 74 76 85.54 ms
Quad9/1 19 19 24 18 20 18 19 19 19 18 24 20 19 19.69 ms
Quad9/2 19 22 24 88 29 67 96 267 112 119 78 74 59 81.08 ms
SafeDNS/1 21 19 19 38 20 20 19 17 15 20 18 23 15 20.31 ms
SafeDNS/2 18 20 18 19 19 20 17 18 13 20 19 20 18 18.38 ms
SKTelecom/1 156 157 162 155 153 160 156 160 162 163 154 226 155 163.00 ms
SKTelecom/2 162 156 154 155 153 161 155 157 151 159 156 163 160 157.08 ms
Verisign/1 28 30 31 29 31 30 28 28 28 30 33 35 32 30.23 ms
Verisign/2 21 15 18 18 18 19 19 19 18 19 20 23 19 18.92 ms
Yandex/1 214 201 212 203 221 205 196 240 205 239 203 204 204 211.31 ms
Yandex/2 208 206 202 198 204 207 220 207 212 211 240 217 222 211.85 ms
ALL SERVERS BY MEDIAN RESPONSE TIME (dnstest.sorted.log)
Server t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t13 Median ms
---------------- --- --- --- --- --- --- --- --- --- --- --- --- --- ---------
pihole-FTL/C 1 1 1 1 1 1 1 1 2 1 1 2 5 1.46 ms
Cloudflare/2 12 9 15 12 14 15 13 15 9 13 54 13 13 15.92 ms
DNSFilter/1 19 17 18 19 17 14 19 20 19 18 19 18 22 18.38 ms
SafeDNS/2 18 20 18 19 19 20 17 18 13 20 19 20 18 18.38 ms
AdGuard/1 18 19 18 18 19 17 18 19 19 18 19 20 18 18.46 ms
114DNS/2 18 17 17 19 17 17 17 19 24 19 18 22 18 18.62 ms
114DNS/1 19 18 19 17 20 19 19 19 18 23 18 16 19 18.77 ms
AdGuard/2 19 19 18 20 19 19 19 19 18 20 18 20 17 18.85 ms
NextDNS/1 15 23 18 19 18 18 15 17 19 19 19 19 26 18.85 ms
Verisign/2 21 15 18 18 18 19 19 19 18 19 20 23 19 18.92 ms
NextDNS/2 25 18 16 26 21 18 19 18 14 20 18 18 17 19.08 ms
DNSFilter/2 24 23 18 13 18 19 18 17 24 19 14 25 19 19.31 ms
ControlD/2 19 17 12 20 20 27 19 17 20 24 19 17 23 19.54 ms
OpenDNS/2 12 14 17 26 29 36 17 18 17 13 18 20 18 19.62 ms
CleanBrowsing/1 24 17 17 19 18 19 19 20 19 18 24 18 24 19.69 ms
Quad9/1 19 19 24 18 20 18 19 19 19 18 24 20 19 19.69 ms
Level3/1 26 14 24 18 22 19 19 18 20 18 17 25 18 19.85 ms
Level3/2 19 18 19 19 24 21 20 24 21 18 24 18 13 19.85 ms
NortonCS/1 31 20 19 19 20 18 19 19 24 17 17 20 20 20.23 ms
SafeDNS/1 21 19 19 38 20 20 19 17 15 20 18 23 15 20.31 ms
Google/1 18 21 32 31 18 19 17 18 16 18 28 21 18 21.15 ms
Google/2 19 19 19 28 17 19 19 18 16 13 52 19 19 21.31 ms
ControlD/1 21 23 21 30 26 21 21 26 16 23 22 27 18 22.69 ms
OpenDNS/1 23 19 25 29 30 20 18 29 18 19 50 21 20 24.69 ms
Neustar/2 93 30 25 20 26 27 20 19 12 12 22 17 18 26.23 ms
Freenom/2 23 26 25 23 25 27 26 27 33 26 28 27 27 26.38 ms
Cloudflare/1 27 14 13 13 13 62 28 14 13 16 13 13 118 27.46 ms
pihole-FTL/I 32 21 24 30 44 67 17 19 18 20 52 19 19 29.38 ms
CenturyLink/1 61 25 26 31 27 27 25 28 30 25 28 31 25 29.92 ms
Verisign/1 28 30 31 29 31 30 28 28 28 30 33 35 32 30.23 ms
CenturyLink/2 44 28 35 28 29 27 34 28 29 34 28 29 27 30.77 ms
NortonCS/2 29 40 31 33 28 31 31 32 32 30 32 30 31 31.54 ms
nameserver/2 17 22 24 23 87 17 18 18 18 19 86 18 51 32.15 ms
nameserver/1 19 26 29 31 36 66 19 18 15 19 91 19 39 32.85 ms
Neustar/1 37 29 45 31 31 27 41 42 30 44 34 31 35 35.15 ms
Quad9/2 19 22 24 88 29 67 96 267 112 119 78 74 59 81.08 ms
Freenom/1 93 70 112 26 27 25 25 170 101 154 202 26 26 81.31 ms
OracleDyn/2 137 76 75 75 77 79 73 73 77 76 144 74 76 85.54 ms
OracleDyn/1 227 76 75 73 78 75 75 79 82 70 166 73 76 94.23 ms
SKTelecom/2 162 156 154 155 153 161 155 157 151 159 156 163 160 157.08 ms
CleanBrowsing/2 160 160 167 155 160 160 161 154 159 159 159 159 159 159.38 ms
DNS.WATCH/2 166 158 177 153 168 156 156 166 156 156 153 154 156 159.62 ms
SKTelecom/1 156 157 162 155 153 160 156 160 162 163 154 226 155 163.00 ms
AliDNS/1 182 185 181 187 185 183 189 180 193 184 180 187 184 184.62 ms
AliDNS/2 195 181 190 180 194 186 190 180 182 194 181 194 176 186.38 ms
OneDNS/2 180 388 178 183 224 171 195 234 177 171 184 181 172 202.92 ms
Yandex/1 214 201 212 203 221 205 196 240 205 239 203 204 204 211.31 ms
Yandex/2 208 206 202 198 204 207 220 207 212 211 240 217 222 211.85 ms
DNSPodDNS+/2 275 249 207 186 190 201 211 207 189 251 204 248 196 216.46 ms
DNSpai/2 199 279 361 221 201 190 197 194 221 192 203 219 192 220.69 ms
DNSpai/1 159 207 312 * 171 151 159 166 164 151 159 174 149 240.15 ms
CNNICSDNS/2 421 267 467 255 260 256 412 * 243 225 335 353 305 369.15 ms
CNNICSDNS/1 254 256 355 361 263 250 249 * 396 259 811 261 242 381.31 ms
DNSPodDNS+/1 445 427 433 414 400 506 412 381 383 375 449 378 406 416.08 ms
DNS.WATCH/1 169 178 * 184 * * 180 166 * 164 * * * 618.54 ms
OneDNS/1 * * * * * 172 * * * 171 * * 172 808.85 ms
ChinaTCL-UNC/1 * * * * * 182 * * * 181 * * 184 811.31 ms
ChinaTCL-UNC/2 * * * * * 191 * * * 188 * * 188 812.85 ms
AlternateDNS/1 * * * * * * * * * * * * * NR 13-to
AlternateDNS/2 * * * * * * * * * * * * * NR 13-to
Comodo/1 * * * * * * * * * * * * * NR 13-to
Comodo/2 * * * * * * * * * * * * * NR 13-to
RESULTS WITH QUERY TIMEOUTS
Server t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t13 Median ms
---------------- --- --- --- --- --- --- --- --- --- --- --- --- --- ---------
DNSpai/1 159 207 312 * 171 151 159 166 164 151 159 174 149 240.15 ms
CNNICSDNS/2 421 267 467 255 260 256 412 * 243 225 335 353 305 369.15 ms
CNNICSDNS/1 254 256 355 361 263 250 249 * 396 259 811 261 242 381.31 ms
DNS.WATCH/1 169 178 * 184 * * 180 166 * 164 * * * 618.54 ms
OneDNS/1 * * * * * 172 * * * 171 * * 172 808.85 ms
ChinaTCL-UNC/1 * * * * * 182 * * * 181 * * 184 811.31 ms
ChinaTCL-UNC/2 * * * * * 191 * * * 188 * * 188 812.85 ms
AlternateDNS/1 * * * * * * * * * * * * * NR 13-to
AlternateDNS/2 * * * * * * * * * * * * * NR 13-to
Comodo/1 * * * * * * * * * * * * * NR 13-to
Comodo/2 * * * * * * * * * * * * * NR 13-to
RESPONDING PROVIDERS BY AVERAGED MEDIAN RESPONSE TIMES
Provider Average Servers
---------------- --------- -------
pihole-FTL 15.42 ms (2)
AdGuard 18.66 ms (2)
114DNS 18.70 ms (2)
DNSFilter 18.84 ms (2)
NextDNS 18.96 ms (2)
SafeDNS 19.34 ms (2)
Level3 19.85 ms (2)
ControlD 21.11 ms (2)
Google 21.23 ms (2)
Cloudflare 21.69 ms (2)
OpenDNS 22.16 ms (2)
Verisign 24.57 ms (2)
NortonCS 25.89 ms (2)
CenturyLink 30.34 ms (2)
Neustar 30.69 ms (2)
nameserver 32.50 ms (2)
Quad9 50.38 ms (2)
Freenom 53.84 ms (2)
CleanBrowsing 89.53 ms (2)
OracleDyn 89.89 ms (2)
SKTelecom 160.04 ms (2)
AliDNS 185.50 ms (2)
Yandex 211.58 ms (2)
DNSpai 230.42 ms (2)
DNSPodDNS+ 316.27 ms (2)
CNNICSDNS 375.23 ms (2)
DNS.WATCH 389.08 ms (2)
OneDNS 505.88 ms (2)
ChinaTCL-UNC 812.08 ms (2)