From subsecret
DNSTester
DNSTester is a simple java-based tool for testing quality of the systems default DNS Server. This can be a useful first step into finding out why pages sometimes takes a long time to load or do not load at all.
Download
JAR file also contains source code.
| Date | Version | File | Description |
|---|---|---|---|
| 26. May 2013 | 1.00 | http://files.subsecret.dk/DNSTester100.jar | Initial release |
Benchmarks
Here is some benchmarks i did on various DNS Server with the tool.
Delay 0.5 sec.
| DNS | Provider | Requests | Average delay (ms.) | Median delay (ms.) | Min delay (ms.) | Max delay (ms.) | Failed |
|---|---|---|---|---|---|---|---|
| 8.8.8.8 | 1000 | 100 | 66 | 64 | 533 | 0 | |
| Router DNS (8.8.8.8) |
Netgear DGND4000 V1.1.00.14 |
1000 | 197 | 133 | 66 | 5398 | 0 |
| 208.67.222.222 | OpenDNS | 1000 | 122 | 100 | 50 | 15304 | 0 |
| 89.150.129.4 | Fullrate | 1000 | 28 | 25 | 24 | 204 | 0 |
| Router DNS (89.150.129.4) |
Netgear DGND4000 V1.1.00.14 |
1000 | 66 | 27 | 25 | 415 | 0 |
How to test different DNS servers
Just change the DNS server in your network configuration:
- Under linux: http://askubuntu.com/questions/2321/what-is-the-proper-way-to-change-the-dns-ip
- Under windows xp: http://www.plus.net/support/software/dns/changing_dns_xp.shtml
- Under windows 7: http://www.sevenforums.com/tutorials/15037-dns-addressing-how-change-windows-7-a.html
- under mac os x: http://www.plus.net/support/software/dns/changing_dns_mac.shtml
License
SubSecret DNSTester is released under the GPL
