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DNS Benchmark v2 Release 5 with Consultant License Guest:
If you own any earlier release of our DNS Benchmark you may immediately download its release #5 replacement. Running an earlier release will detect the new release and help you upgrade.
Although this release is cosmetic, appearance matters and affects ease of use. The biggest change, as seen in the image above, is that the DNS Benchmark now has a traditional Windows application menu to more fully expose its many features. This release is also "Consultant License Aware" and GRC will now issue a Consultant version when owners have previously purchased four "Personal Use" licenses. If you have previously purchased four DNSB licenses, or if you wish to upgrade your "Personal Use" license to Consultant, GRC's purchase process will direct you through that process.
/Steve. -
Be sure to checkout “Tips & Tricks” Dear Guest Visitor → Once you register and log-in please checkout the “Tips & Tricks” page for some very handy tips!
/Steve. -
BootAble – FreeDOS boot testing freeware
To obtain direct, low-level access to a system's mass storage drives, SpinRite runs under a GRC-customized version of FreeDOS which has been modified to add compatibility with all file systems. In order to run SpinRite it must first be possible to boot FreeDOS.
GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a BIOS. Once the means of doing that has been determined, the media created by SpinRite can be booted and run in the same way.
The participants here, who have taken the time to share their knowledge and experience, their successes and some frustrations with booting their computers into FreeDOS, have created a valuable knowledgebase which will benefit everyone who follows.
You may click on the image to the right to obtain your own copy of BootAble. Then use the knowledge and experience documented here to boot your computer(s) into FreeDOS. And please do not hesitate to ask questions – nowhere else can better answers be found.
(You may permanently close this reminder with the 'X' in the upper right.)
Never mind. I found the answer.
I was expecting the copy button on the 'Nameservers' tab, to copy the server 'list' (minus the graphical elements) to the clipboard, but it did not work E.g. I now know the clipboard contained an image (not text) so it did not appear to do anything.
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The text copy works on the Tabular Data' tab, but it is a bit ambiguous when there are no names or ownership information.
**Per my other posted question.
This list is the top performers, from my top 50. E.g. approximately 30 minutes of data aggregation
I was expecting the copy button on the 'Nameservers' tab, to copy the server 'list' (minus the graphical elements) to the clipboard, but it did not work E.g. I now know the clipboard contained an image (not text) so it did not appear to do anything.
-----
The text copy works on the Tabular Data' tab, but it is a bit ambiguous when there are no names or ownership information.
**Per my other posted question.
This list is the top performers, from my top 50. E.g. approximately 30 minutes of data aggregation
Code:
UTC: 2026-03-09, from 15:43:03 to 15:44:32, for 01:29.858
1. 0. 0. 1 | Min | Avg | Max |Std.Dev| Jitter|
----------------+-------+-------+-------+-------+-------+
- Average Delay | 0.006 | 0.023 | 0.529 | 0.009 | 0.391 |
- Cached Name | 0.006 | 0.007 | 0.009 | 0.001 | 0.143 |
- Uncached Name | 0.008 | 0.045 | 0.529 | 0.090 | 2.000 |
- DotCom Lookup | 0.009 | 0.018 | 0.031 | 0.007 | 0.389 |
---<-------->---+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
208. 67.220.220 | Min | Avg | Max |Std.Dev| Jitter|
----------------+-------+-------+-------+-------+-------+
- Average Delay | 0.005 | 0.024 | 0.254 | 0.010 | 0.417 |
- Cached Name | 0.005 | 0.006 | 0.009 | 0.001 | 0.167 |
- Uncached Name | 0.006 | 0.043 | 0.254 | 0.056 | 1.302 |
- DotCom Lookup | 0.009 | 0.023 | 0.040 | 0.007 | 0.304 |
---<-------->---+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
1. 1. 1. 1 | Min | Avg | Max |Std.Dev| Jitter|
----------------+-------+-------+-------+-------+-------+
- Average Delay | 0.006 | 0.024 | 0.551 | 0.009 | 0.375 |
- Cached Name | 0.006 | 0.008 | 0.010 | 0.001 | 0.125 |
- Uncached Name | 0.008 | 0.045 | 0.551 | 0.090 | 2.000 |
- DotCom Lookup | 0.010 | 0.021 | 0.031 | 0.006 | 0.286 |
---<-------->---+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
205.171. 2. 65 | Min | Avg | Max |Std.Dev| Jitter|
----------------+-------+-------+-------+-------+-------+
- Average Delay | 0.006 | 0.024 | 0.334 | 0.009 | 0.375 |
- Cached Name | 0.006 | 0.007 | 0.009 | 0.001 | 0.143 |
- Uncached Name | 0.007 | 0.043 | 0.334 | 0.073 | 1.698 |
- DotCom Lookup | 0.021 | 0.023 | 0.025 | 0.001 | 0.043 |
---<-------->---+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
205.171. 3. 65 | Min | Avg | Max |Std.Dev| Jitter|
----------------+-------+-------+-------+-------+-------+
- Average Delay | 0.006 | 0.025 | 0.241 | 0.010 | 0.400 |
- Cached Name | 0.006 | 0.007 | 0.009 | 0.001 | 0.143 |
- Uncached Name | 0.008 | 0.039 | 0.241 | 0.065 | 1.667 |
- DotCom Lookup | 0.022 | 0.028 | 0.061 | 0.005 | 0.179 |
---<-------->---+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
166.102.165. 13 | Min | Avg | Max |Std.Dev| Jitter|
----------------+-------+-------+-------+-------+-------+
- Average Delay | 0.006 | 0.025 | 0.333 | 0.010 | 0.400 |
- Cached Name | 0.006 | 0.006 | 0.008 | 0.001 | 0.167 |
- Uncached Name | 0.006 | 0.037 | 0.333 | 0.065 | 1.757 |
- DotCom Lookup | 0.026 | 0.032 | 0.043 | 0.006 | 0.188 |
---<-------->---+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···
209.253.113. 10 | Min | Avg | Max |Std.Dev| Jitter|
----------------+-------+-------+-------+-------+-------+
- Average Delay | 0.005 | 0.025 | 0.333 | 0.010 | 0.400 |
- Cached Name | 0.005 | 0.007 | 0.008 | 0.001 | 0.143 |
- Uncached Name | 0.007 | 0.035 | 0.333 | 0.064 | 1.829 |
- DotCom Lookup | 0.026 | 0.034 | 0.072 | 0.008 | 0.235 |
---<-------->---+-------+-------+-------+-------+-------+
··· no official Internet DNS name ···
··· unknown owner ···