File this one under website tools. Website download optimization seeks to minimize the wait users have when visiting your site. You can go to this site here, enter a URL, and it will calculate how long your page takes to load, depending on the speed of connection. So, for example, you can see how long it takes for poor soul using 28.8K modem versus a T1. In addition, it gives some recommendations on how to speed up downloading (if needed).
For those interested, below are the results for this page:
| Speed | Time |
|---|---|
| 14.4K | 37.33 seconds |
| 28.8K | 18.76 seconds |
| 33.6K | 16.11 seconds |
| 56K | 9.75 seconds |
| ISDN 128K | 3.12 seconds |
| T1 1.44Mbps | 0.45 seconds |
*Note that these download times are based on the full connection rate for ISDN and T1 connections. Modem connections (56Kbps or less) are corrected by a packet loss factor of 0.7. All download times include delays due to round-trip latency with an average of 0.2 seconds per object. With 6 total objects for this page, that computes to a total lag time due to latency of 1.2 seconds. Note also that this download time calculation does not take into account delays due to XHTML parsing and rendering.
