Zainspirowany artykułem Jona Radoffa postanowiłem sprawdzić jak uruchomienie Google DNS wpływa na przeciętnego polskiego użytkownika Neostrady. Google DNS według jego twórców ma być szybsze, bezpieczniejsze i pewniejsze. O ile to ostatnie przeciętny użytkownik uznaje za oczywiste, a bezpieczeństwo DNS pozostawia specom od bezpieczeństwa DNS, o tyle szybkość działania jest (szczególnie w naszym biednym telekomunikacyjnie kraju) kluczowa.
Wyniki DNS Benchmark
Do sprawdzenia czasu reakcji serwerów DNS użyłem tego samego narzędzia, co Jon, czyli DNS Benchmark Steve’a Gibsona. DNS Benchmark napisano wprawdzie pod Windę, ale świetnie działa na Macu w emulacji – uruchomiłem go za pomocą komercyjnej implementacji Wine, Crossover w wersji Games (ma zoptymalizowaną pod jak najmniejszego pinga obsługę sieci). Używam Neostrady w wersji 2Mb, między Neo a moim komputerem stoi router Apple Airport Extreme Base Station i nieco powietrza, w którym AEBS rozprasza sygnał 802.11n.
Obok screenshot z wynikami, posortowanymi od najszybszego do najwolniejszego serwera DNS, bez cache’owania. Jak widać, ani Google DNS (14 pozycja) ani nawet DNS-y Tepsy (czyli Neostrady, druga i 7. pozycja) nie są najszybsze. Na 17. pozycji znalazł się używany przeze mnie OpenDNS. Co to oznacza? Że póki co, nie ma sensu używać Google DNS na połączeniu Neostrady. Dopóki resolvery nie znajdą się fizycznie bliżej nas, nie będzie na pewno szybciej. Będzie jednak znacznie mniej pewnie.
A teraz garść danych tabelarycznych, przesortowanych według najczęstszego scenariusza, czyli cache’owanego DNS-u. Tak korzystają z DNS zwykli użytkownicy. Tutaj bez niespodzianek, serwery nazw Tepsy wygrywają konkurencję (usunąłem mój wewnętrzny, cache’ujący OpenDNS serwer DNS, bo jest o dwa rzędy wielkości szybszy). Google daleko w polu:
Final benchmark results, sorted by nameserver performance:
(average cached name retrieval speed, fastest to slowest)
194.204.152. 34 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.009 | 0.039 | 0.167 | 0.039 | 100.0 |
- Uncached Name | 0.043 | 0.157 | 0.352 | 0.098 | 100.0 |
- DotCom Lookup | 0.019 | 0.066 | 0.171 | 0.044 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns2.tpsa.pl
Commercial IP network of Polish Telecom
194.204.159. 1 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.009 | 0.045 | 0.154 | 0.043 | 100.0 |
- Uncached Name | 0.040 | 0.146 | 0.382 | 0.102 | 100.0 |
- DotCom Lookup | 0.019 | 0.055 | 0.170 | 0.040 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.tpsa.pl
local network
4. 2. 2. 4 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.043 | 0.060 | 0.124 | 0.021 | 100.0 |
- Uncached Name | 0.048 | 0.148 | 0.418 | 0.105 | 100.0 |
- DotCom Lookup | 0.047 | 0.205 | 0.639 | 0.193 | 100.0 |
----------------+-------+-------+-------+-------+-------+
vnsc-pri-dsl.genuity.net
Level 3 Communications
4. 2. 2. 6 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.043 | 0.063 | 0.160 | 0.030 | 100.0 |
- Uncached Name | 0.048 | 0.152 | 0.395 | 0.104 | 100.0 |
- DotCom Lookup | 0.049 | 0.153 | 0.566 | 0.134 | 100.0 |
----------------+-------+-------+-------+-------+-------+
vnsc-lc-dsl.genuity.net
Level 3 Communications
4. 2. 2. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.044 | 0.066 | 0.166 | 0.028 | 100.0 |
- Uncached Name | 0.046 | 0.137 | 0.396 | 0.107 | 100.0 |
- DotCom Lookup | 0.046 | 0.149 | 0.349 | 0.098 | 100.0 |
----------------+-------+-------+-------+-------+-------+
vnsc-bak.sys.gtei.net
Level 3 Communications
4. 2. 2. 5 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.051 | 0.067 | 0.108 | 0.017 | 100.0 |
- Uncached Name | 0.058 | 0.157 | 0.411 | 0.096 | 100.0 |
- DotCom Lookup | 0.064 | 0.203 | 0.385 | 0.105 | 100.0 |
----------------+-------+-------+-------+-------+-------+
vnsc-bak-dsl.genuity.net
Level 3 Communications
4. 2. 2. 3 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.051 | 0.069 | 0.133 | 0.021 | 100.0 |
- Uncached Name | 0.054 | 0.151 | 0.424 | 0.102 | 100.0 |
- DotCom Lookup | 0.067 | 0.206 | 0.364 | 0.091 | 100.0 |
----------------+-------+-------+-------+-------+-------+
vnsc-lc.sys.gtei.net
Level 3 Communications
4. 2. 2. 1 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.050 | 0.069 | 0.121 | 0.022 | 100.0 |
- Uncached Name | 0.058 | 0.180 | 0.477 | 0.109 | 100.0 |
- DotCom Lookup | 0.074 | 0.253 | 0.415 | 0.106 | 100.0 |
----------------+-------+-------+-------+-------+-------+
vnsc-pri.sys.gtei.net
Level 3 Communications
8. 8. 8. 8 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.048 | 0.069 | 0.150 | 0.023 | 100.0 |
- Uncached Name | 0.056 | 0.216 | 0.417 | 0.107 | 100.0 |
- DotCom Lookup | 0.069 | 0.168 | 0.333 | 0.077 | 100.0 |
----------------+-------+-------+-------+-------+-------+
google-public-dns-a.google.com
Level 3 Communications
129.250. 35.250 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.054 | 0.070 | 0.137 | 0.018 | 100.0 |
- Uncached Name | 0.057 | 0.149 | 0.389 | 0.095 | 100.0 |
- DotCom Lookup | 0.058 | 0.089 | 0.214 | 0.040 | 100.0 |
----------------+-------+-------+-------+-------+-------+
x.ns.gin.ntt.net
NTT America Technical Operations
129.250. 35.251 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.055 | 0.074 | 0.151 | 0.019 | 100.0 |
- Uncached Name | 0.058 | 0.161 | 0.407 | 0.094 | 100.0 |
- DotCom Lookup | 0.058 | 0.094 | 0.274 | 0.048 | 100.0 |
----------------+-------+-------+-------+-------+-------+
y.ns.gin.ntt.net
NTT America Technical Operations
208. 67.222.222 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.054 | 0.076 | 0.136 | 0.019 | 100.0 |
- Uncached Name | 0.060 | 0.235 | 1.134 | 0.225 | 100.0 |
- DotCom Lookup | 0.059 | 0.235 | 0.607 | 0.152 | 100.0 |
----------------+-------+-------+-------+-------+-------+
resolver1.opendns.com
OpenDNS, LLC
208. 67.220.220 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.054 | 0.079 | 0.179 | 0.027 | 100.0 |
- Uncached Name | 0.059 | 0.275 | 1.154 | 0.286 | 100.0 |
- DotCom Lookup | 0.060 | 0.163 | 0.395 | 0.084 | 100.0 |
----------------+-------+-------+-------+-------+-------+
resolver2.opendns.com
OpenDNS, LLC
156.154. 70. 1 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.056 | 0.080 | 0.189 | 0.030 | 100.0 |
- Uncached Name | 0.059 | 0.169 | 0.436 | 0.110 | 100.0 |
- DotCom Lookup | 0.060 | 0.099 | 0.227 | 0.039 | 100.0 |
----------------+-------+-------+-------+-------+-------+
rdns1.ultradns.net
NEUSTAR
62. 6. 40.162 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.061 | 0.087 | 0.195 | 0.031 | 100.0 |
- Uncached Name | 0.065 | 0.166 | 0.345 | 0.080 | 100.0 |
- DotCom Lookup | 0.066 | 0.096 | 0.206 | 0.028 | 100.0 |
----------------+-------+-------+-------+-------+-------+
indnsc70.bt.net
BT MDIP Dynamic Address Pools and infrastructure
156.154. 71. 1 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.055 | 0.090 | 0.197 | 0.042 | 100.0 |
- Uncached Name | 0.065 | 0.208 | 0.494 | 0.134 | 100.0 |
- DotCom Lookup | 0.058 | 0.088 | 0.215 | 0.030 | 100.0 |
----------------+-------+-------+-------+-------+-------+
rdns2.ultradns.net
NEUSTAR
66. 92. 64. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.129 | 0.153 | 0.266 | 0.031 | 100.0 |
- Uncached Name | 0.135 | 0.228 | 0.401 | 0.082 | 100.0 |
- DotCom Lookup | 0.135 | 0.229 | 0.331 | 0.048 | 100.0 |
----------------+-------+-------+-------+-------+-------+
bos.speakeasy.net
Speakeasy
66. 92.224. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.132 | 0.153 | 0.239 | 0.028 | 100.0 |
- Uncached Name | 0.135 | 0.248 | 0.406 | 0.071 | 100.0 |
- DotCom Lookup | 0.136 | 0.244 | 0.340 | 0.042 | 100.0 |
----------------+-------+-------+-------+-------+-------+
phl.speakeasy.net
Speakeasy
216.254. 95. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.130 | 0.156 | 0.267 | 0.030 | 100.0 |
- Uncached Name | 0.132 | 0.235 | 0.449 | 0.080 | 100.0 |
- DotCom Lookup | 0.138 | 0.227 | 0.366 | 0.055 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.nyc1.speakeasy.net
Speakeasy
66. 92.159. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.137 | 0.159 | 0.239 | 0.027 | 100.0 |
- Uncached Name | 0.142 | 0.239 | 0.484 | 0.089 | 100.0 |
- DotCom Lookup | 0.147 | 0.266 | 0.374 | 0.054 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.wdc1.speakeasy.net
Speakeasy
68. 87. 64.154 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.138 | 0.165 | 0.270 | 0.034 | 100.0 |
- Uncached Name | 0.146 | 0.224 | 0.408 | 0.078 | 100.0 |
- DotCom Lookup | 0.147 | 0.184 | 0.267 | 0.035 | 100.0 |
----------------+-------+-------+-------+-------+-------+
phil-dnssec-trial.inflow.pa.bo.comcast.net
Comcast Cable
64. 81.159. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.150 | 0.171 | 0.251 | 0.025 | 100.0 |
- Uncached Name | 0.153 | 0.247 | 0.419 | 0.067 | 100.0 |
- DotCom Lookup | 0.180 | 0.263 | 0.374 | 0.051 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.chi1.speakeasy.net
Speakeasy
66.128.240. 8 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.159 | 0.179 | 0.261 | 0.028 | 100.0 |
- Uncached Name | 0.171 | 0.253 | 0.438 | 0.072 | 100.0 |
- DotCom Lookup | 0.186 | 0.275 | 0.431 | 0.073 | 100.0 |
----------------+-------+-------+-------+-------+-------+
host-66-128-240-8.united.net
United Telephone Company
67. 19. 0. 10 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.160 | 0.179 | 0.246 | 0.023 | 100.0 |
- Uncached Name | 0.170 | 0.257 | 0.421 | 0.066 | 100.0 |
- DotCom Lookup | 0.169 | 0.232 | 0.374 | 0.059 | 100.0 |
----------------+-------+-------+-------+-------+-------+
cache01.theplanet.com
THEPLANET.COM INTERNET SERVICES
216.185.111. 10 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.164 | 0.187 | 0.279 | 0.031 | 100.0 |
- Uncached Name | 0.172 | 0.244 | 0.421 | 0.059 | 100.0 |
- DotCom Lookup | 0.170 | 0.226 | 0.357 | 0.055 | 100.0 |
----------------+-------+-------+-------+-------+-------+
cache01.theplanet.com
The Planet
64. 81.127. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.170 | 0.190 | 0.251 | 0.023 | 100.0 |
- Uncached Name | 0.173 | 0.262 | 0.434 | 0.069 | 100.0 |
- DotCom Lookup | 0.175 | 0.285 | 0.439 | 0.066 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.dfw1.speakeasy.net
Speakeasy
68. 87. 68.170 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.172 | 0.194 | 0.284 | 0.031 | 100.0 |
- Uncached Name | 0.196 | 0.270 | 0.454 | 0.069 | 100.0 |
- DotCom Lookup | 0.194 | 0.274 | 0.444 | 0.055 | 100.0 |
----------------+-------+-------+-------+-------+-------+
atlt-dnssec-trial.s3woodstock.ga.atlanta.comcast.net
Comcast Cable
199. 45. 32. 43 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.160 | 0.196 | 0.297 | 0.036 | 100.0 |
- Uncached Name | 0.166 | 0.240 | 0.472 | 0.071 | 100.0 |
- DotCom Lookup | 0.165 | 0.206 | 0.291 | 0.034 | 100.0 |
----------------+-------+-------+-------+-------+-------+
home1.bellatlantic.net
Verizon Internet Services
72. 45.127.250 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.177 | 0.197 | 0.270 | 0.021 | 100.0 |
- Uncached Name | 0.194 | 0.275 | 0.447 | 0.065 | 100.0 |
- DotCom Lookup | 0.208 | 0.300 | 0.450 | 0.069 | 100.0 |
----------------+-------+-------+-------+-------+-------+
xplr-ts-11-tor-72-45-127-250.barrettxplore.com
Barrett Xplore
199. 45. 32. 40 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.166 | 0.202 | 0.284 | 0.028 | 100.0 |
- Uncached Name | 0.171 | 0.253 | 0.496 | 0.077 | 100.0 |
- DotCom Lookup | 0.172 | 0.205 | 0.279 | 0.026 | 100.0 |
----------------+-------+-------+-------+-------+-------+
legacy-ns1.bellatlantic.net
Verizon Internet Services
72. 45.127.251 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.174 | 0.203 | 0.266 | 0.025 | 98.0 |
- Uncached Name | 0.192 | 0.272 | 0.446 | 0.072 | 100.0 |
- DotCom Lookup | 0.197 | 0.260 | 0.433 | 0.058 | 100.0 |
----------------+-------+-------+-------+-------+-------+
xplr-ts-11-tor-72-45-127-251.barrettxplore.com
Barrett Xplore
151.197. 0. 39 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.176 | 0.204 | 0.279 | 0.026 | 100.0 |
- Uncached Name | 0.189 | 0.264 | 0.464 | 0.075 | 100.0 |
- DotCom Lookup | 0.185 | 0.224 | 0.325 | 0.043 | 100.0 |
----------------+-------+-------+-------+-------+-------+
home4.bellatlantic.net
Verizon Internet Services
199. 45. 32. 37 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.171 | 0.205 | 0.319 | 0.032 | 100.0 |
- Uncached Name | 0.186 | 0.255 | 0.457 | 0.067 | 100.0 |
- DotCom Lookup | 0.178 | 0.208 | 0.294 | 0.030 | 98.0 |
----------------+-------+-------+-------+-------+-------+
world1.bellatlantic.net
Verizon Internet Services
151.197. 0. 38 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.172 | 0.205 | 0.337 | 0.035 | 100.0 |
- Uncached Name | 0.181 | 0.266 | 0.424 | 0.071 | 100.0 |
- DotCom Lookup | 0.172 | 0.217 | 0.343 | 0.043 | 100.0 |
----------------+-------+-------+-------+-------+-------+
nsphil.bellatlantic.net
Verizon Internet Services
151.202. 0. 85 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.171 | 0.205 | 0.275 | 0.027 | 100.0 |
- Uncached Name | 0.173 | 0.271 | 0.482 | 0.076 | 100.0 |
- DotCom Lookup | 0.182 | 0.220 | 0.325 | 0.038 | 100.0 |
----------------+-------+-------+-------+-------+-------+
nyc2-qwest.bellatlantic.net
Verizon Internet Services
216. 27.175. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.174 | 0.206 | 0.289 | 0.033 | 100.0 |
- Uncached Name | 0.194 | 0.284 | 0.509 | 0.076 | 100.0 |
- DotCom Lookup | 0.195 | 0.276 | 0.395 | 0.050 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.atl1.speakeasy.net
Speakeasy
199. 45. 32. 38 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.170 | 0.208 | 0.306 | 0.032 | 100.0 |
- Uncached Name | 0.181 | 0.261 | 0.501 | 0.075 | 100.0 |
- DotCom Lookup | 0.180 | 0.213 | 0.300 | 0.031 | 100.0 |
----------------+-------+-------+-------+-------+-------+
nsdc.bellatlantic.net
Verizon Internet Services
68. 56. 26.129 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.181 | 0.209 | 0.304 | 0.033 | 100.0 |
- Uncached Name | 0.231 | 0.321 | 0.502 | 0.073 | 100.0 |
- DotCom Lookup | 0.235 | 0.434 | 3.849 | 0.534 | 95.8 |
----------------+-------+-------+-------+-------+-------+
c-68-56-26-129.hsd1.fl.comcast.net
Comcast Cable
151.203. 0. 84 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.182 | 0.210 | 0.280 | 0.025 | 100.0 |
- Uncached Name | 0.193 | 0.287 | 0.478 | 0.074 | 100.0 |
- DotCom Lookup | 0.201 | 0.233 | 0.342 | 0.035 | 100.0 |
----------------+-------+-------+-------+-------+-------+
boston1-qwest.bellatlantic.net
Verizon Internet Services
68. 47.155.148 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.189 | 0.211 | 0.305 | 0.029 | 100.0 |
- Uncached Name | 0.239 | 0.334 | 0.500 | 0.072 | 100.0 |
- DotCom Lookup | 0.247 | 0.339 | 0.477 | 0.063 | 100.0 |
----------------+-------+-------+-------+-------+-------+
c-68-47-155-148.hsd1.fl.comcast.net
Comcast Cable
151.202. 0. 84 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.184 | 0.214 | 0.312 | 0.030 | 100.0 |
- Uncached Name | 0.192 | 0.283 | 0.488 | 0.075 | 100.0 |
- DotCom Lookup | 0.193 | 0.232 | 0.369 | 0.046 | 100.0 |
----------------+-------+-------+-------+-------+-------+
nyc1-qwest.bellatlantic.net
Verizon Internet Services
151.203. 0. 85 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.186 | 0.219 | 0.331 | 0.032 | 100.0 |
- Uncached Name | 0.204 | 0.304 | 0.485 | 0.072 | 98.0 |
- DotCom Lookup | 0.206 | 0.246 | 0.354 | 0.038 | 100.0 |
----------------+-------+-------+-------+-------+-------+
boston2-qwest.bellatlantic.net
Verizon Internet Services
69. 56.222. 10 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.190 | 0.221 | 0.352 | 0.032 | 100.0 |
- Uncached Name | 0.199 | 0.289 | 0.455 | 0.068 | 100.0 |
- DotCom Lookup | 0.203 | 0.259 | 0.382 | 0.052 | 100.0 |
----------------+-------+-------+-------+-------+-------+
cache02.theplanet.com
The Planet
204. 97.212. 10 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.201 | 0.225 | 0.303 | 0.024 | 100.0 |
- Uncached Name | 0.209 | 0.297 | 0.474 | 0.075 | 100.0 |
- DotCom Lookup | 0.204 | 0.247 | 0.312 | 0.030 | 100.0 |
----------------+-------+-------+-------+-------+-------+
ns3.sprintlink.net
Sprint
64. 81.111. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.207 | 0.226 | 0.288 | 0.021 | 100.0 |
- Uncached Name | 0.209 | 0.295 | 0.431 | 0.068 | 100.0 |
- DotCom Lookup | 0.212 | 0.329 | 0.439 | 0.066 | 100.0 |
----------------+-------+-------+-------+-------+-------+
den.speakeasy.net
Speakeasy
64. 81. 45. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.210 | 0.233 | 0.329 | 0.028 | 100.0 |
- Uncached Name | 0.222 | 0.314 | 0.448 | 0.067 | 100.0 |
- DotCom Lookup | 0.224 | 0.339 | 0.448 | 0.061 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.lax1.speakeasy.net
Speakeasy
64. 81. 79. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.209 | 0.235 | 0.340 | 0.034 | 100.0 |
- Uncached Name | 0.217 | 0.308 | 0.452 | 0.078 | 100.0 |
- DotCom Lookup | 0.233 | 0.350 | 0.448 | 0.058 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.sfo1.speakeasy.net
Speakeasy
67. 19. 1. 10 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.200 | 0.235 | 0.334 | 0.031 | 100.0 |
- Uncached Name | 0.219 | 0.314 | 0.461 | 0.064 | 98.0 |
- DotCom Lookup | 0.207 | 0.276 | 0.401 | 0.055 | 100.0 |
----------------+-------+-------+-------+-------+-------+
cache02.theplanet.com
THEPLANET.COM INTERNET SERVICES
199. 2.252. 10 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.196 | 0.236 | 0.353 | 0.039 | 100.0 |
- Uncached Name | 0.202 | 0.273 | 0.450 | 0.061 | 98.0 |
- DotCom Lookup | 0.199 | 0.228 | 0.308 | 0.022 | 100.0 |
----------------+-------+-------+-------+-------+-------+
ns2.sprintlink.net
SprintLink
204.117.214. 10 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.197 | 0.236 | 0.342 | 0.039 | 98.0 |
- Uncached Name | 0.214 | 0.295 | 0.465 | 0.067 | 100.0 |
- DotCom Lookup | 0.200 | 0.238 | 0.392 | 0.040 | 100.0 |
----------------+-------+-------+-------+-------+-------+
ns1.sprintlink.net
Sprint
205.210. 42.205 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.162 | 0.238 | 0.547 | 0.093 | 100.0 |
- Uncached Name | 0.191 | 0.326 | 0.708 | 0.122 | 100.0 |
- DotCom Lookup | 0.195 | 0.325 | 0.703 | 0.078 | 100.0 |
----------------+-------+-------+-------+-------+-------+
cache1.dnsresolvers.com
Private World Communications
204.194.232.200 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.195 | 0.239 | 0.345 | 0.039 | 100.0 |
- Uncached Name | 0.206 | 0.307 | 0.669 | 0.081 | 100.0 |
- DotCom Lookup | 0.248 | 0.333 | 0.507 | 0.055 | 100.0 |
----------------+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
72. 45.111.250 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.220 | 0.244 | 0.346 | 0.028 | 100.0 |
- Uncached Name | 0.232 | 0.296 | 0.425 | 0.058 | 100.0 |
- DotCom Lookup | 0.228 | 0.299 | 0.446 | 0.075 | 100.0 |
----------------+-------+-------+-------+-------+-------+
xplr-ts-10-van-72-45-111-250.barrettxplore.com
Barrett Xplore
72. 45.111.251 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.220 | 0.251 | 0.349 | 0.034 | 100.0 |
- Uncached Name | 0.231 | 0.291 | 0.412 | 0.059 | 98.0 |
- DotCom Lookup | 0.227 | 0.292 | 0.461 | 0.070 | 100.0 |
----------------+-------+-------+-------+-------+-------+
xplr-ts-10-van-72-45-111-251.barrettxplore.com
Barrett Xplore
64.129. 67.105 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.226 | 0.251 | 0.306 | 0.021 | 91.7 |
- Uncached Name | 0.244 | 0.316 | 0.488 | 0.066 | 90.9 |
- DotCom Lookup | 0.247 | 0.544 | 1.123 | 0.317 | 92.5 |
----------------+-------+-------+-------+-------+-------+
dnvr-rdns-06.dnvr.twtelecom.net
Time Warner Telecom
216.231. 41. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.226 | 0.253 | 0.406 | 0.036 | 100.0 |
- Uncached Name | 0.234 | 0.334 | 0.454 | 0.072 | 100.0 |
- DotCom Lookup | 0.231 | 0.358 | 0.525 | 0.075 | 100.0 |
----------------+-------+-------+-------+-------+-------+
ns-legacy.speakeasy.net
Speakeasy
66. 93. 87. 2 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.228 | 0.257 | 0.351 | 0.036 | 100.0 |
- Uncached Name | 0.237 | 0.360 | 0.876 | 0.115 | 100.0 |
- DotCom Lookup | 0.238 | 0.360 | 0.518 | 0.074 | 100.0 |
----------------+-------+-------+-------+-------+-------+
dns.sea1.speakeasy.net
Speakeasy
204.194.234.200 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.220 | 0.258 | 0.360 | 0.039 | 100.0 |
- Uncached Name | 0.228 | 0.332 | 0.731 | 0.107 | 100.0 |
- DotCom Lookup | 0.265 | 0.361 | 0.520 | 0.058 | 100.0 |
----------------+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
64.129. 67.101 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.224 | 0.262 | 0.356 | 0.037 | 93.6 |
- Uncached Name | 0.241 | 0.322 | 0.495 | 0.069 | 95.5 |
- DotCom Lookup | 0.239 | 0.372 | 1.051 | 0.173 | 97.6 |
----------------+-------+-------+-------+-------+-------+
dnvr-rdns-02.dnvr.twtelecom.net
Time Warner Telecom
206.124. 64. 1 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.215 | 0.264 | 0.460 | 0.047 | 100.0 |
- Uncached Name | 0.226 | 0.318 | 0.507 | 0.078 | 100.0 |
- DotCom Lookup | 0.263 | 0.305 | 0.404 | 0.041 | 100.0 |
----------------+-------+-------+-------+-------+-------+
bigguy.gte.net
GTE Intelligent Network Services
64.129. 67.103 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.232 | 0.264 | 0.365 | 0.033 | 95.9 |
- Uncached Name | 0.256 | 0.344 | 0.524 | 0.067 | 100.0 |
- DotCom Lookup | 0.252 | 0.393 | 1.076 | 0.185 | 93.6 |
----------------+-------+-------+-------+-------+-------+
dnvr-rdns-04.dnvr.twtelecom.net
Time Warner Telecom
64.129. 67.102 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.232 | 0.270 | 0.361 | 0.033 | 95.9 |
- Uncached Name | 0.250 | 0.335 | 0.506 | 0.064 | 95.7 |
- DotCom Lookup | 0.257 | 0.378 | 1.126 | 0.146 | 95.6 |
----------------+-------+-------+-------+-------+-------+
dnvr-rdns-03.dnvr.twtelecom.net
Time Warner Telecom
64.102.255. 44 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.222 | 0.286 | 0.799 | 0.123 | 100.0 |
- Uncached Name | 0.233 | 0.339 | 0.526 | 0.082 | 100.0 |
- DotCom Lookup | 0.240 | 0.331 | 0.508 | 0.073 | 100.0 |
----------------+-------+-------+-------+-------+-------+
ns2.cisco.com
CISCO SYSTEMS
66.128.240. 7 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.247 | 0.292 | 0.385 | 0.033 | 89.6 |
- Uncached Name | 0.268 | 0.366 | 0.567 | 0.088 | 86.0 |
- DotCom Lookup | 0.291 | 0.377 | 0.500 | 0.060 | 86.5 |
----------------+-------+-------+-------+-------+-------+
host-66-128-240-7.united.net
United Telephone Company
203.215. 3. 43 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.358 | 0.385 | 0.473 | 0.032 | 100.0 |
- Uncached Name | 0.363 | 0.562 | 0.735 | 0.090 | 100.0 |
- DotCom Lookup | 0.357 | 0.424 | 0.530 | 0.061 | 100.0 |
----------------+-------+-------+-------+-------+-------+
syd-stl-cns1.iinet.net.au
iiNet Limited
203. 55.230.105 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.413 | 0.441 | 0.562 | 0.037 | 100.0 |
- Uncached Name | 0.478 | 0.657 | 0.826 | 0.085 | 100.0 |
- DotCom Lookup | 0.476 | 0.545 | 0.673 | 0.062 | 100.0 |
----------------+-------+-------+-------+-------+-------+
per-qv1-dnsradius6.iinet.net.au
iiNet Limited
203. 55.230.104 | Min | Avg | Max |Std.Dev|Reliab%|
----------------+-------+-------+-------+-------+-------+
- Cached Name | 0.416 | 0.441 | 0.582 | 0.036 | 100.0 |
- Uncached Name | 0.484 | 0.671 | 0.952 | 0.100 | 100.0 |
- DotCom Lookup | 0.477 | 0.538 | 0.628 | 0.055 | 100.0 |
----------------+-------+-------+-------+-------+-------+
per-qv1-dnsradius5.iinet.net.au
iiNet Limited
