| Control of Server Parameters | All | USA | Europe |
| Basic auth | 396.00 58.41% |
288.00 57.49% |
59.00 64.84% |
| Caching | 267.00 39.38% |
195.00 38.92% |
44.00 48.35% |
| Cookies | 310.00 45.72% |
228.00 45.51% |
46.00 50.55% |
| Don t Know | 124.00 18.29% |
91.00 18.16% |
12.00 13.19% |
| Expires | 340.00 50.15% |
247.00 49.30% |
56.00 61.54% |
| Last mod | 373.00 55.01% |
280.00 55.89% |
56.00 61.54% |
| Redirect | 470.00 69.32% |
346.00 69.06% |
70.00 76.92% |
| Robots | 407.00 60.03% |
297.00 59.28% |
64.00 70.33% |
| SSI | 418.00 61.65% |
307.00 61.28% |
58.00 63.74% |
| Vhost | 298.00 43.95% |
207.00 41.32% |
51.00 56.04% |
GVU's WWW Surveying Team
Graphics, Visualization, & Usability Center
College of Computing
Georgia Institute of Technology
Atlanta, GA 30332-0280