Keep-Alive directives (2 total)
- max
- timeout
Keep-Alive
HTTP response headerHeader usage statistics
Keep-Alive response header information and usage statistics.| Websites using header Keep-Alive | 24,282,992 |
| Percentage of websites that use Keep-Alive header | 29.62% |
| Total discovered header values | 5,492 |
| Header uses directives | Yes |
| Header values are unique or random | No |
| Most popular in the country |  United States |
Keep-Alive Directives
Keep-Alive directives value information and usage statistics| Directive | Share | Websites count | Unique Values |
|---|---|---|---|
| timeout | 100.00% | 24,282,802 | 93 |
| max | 78.25% | 19,001,555 | 449 |
Keep-Alive header usage distribution by website rank
Geographical Distribution
Header usage distribution by websites across the globe.Websites utilizing Keep-Alive
List of websites that use Keep-Alive header| Domain | Country | Rank | Contacts |
|---|---|---|---|
| United States | 136 | ||
| United States | 136 | ||
| United States | 141 | ||
 Russia | 192 | ||
| United States | 194 | ||
 Brazil | 196 |
Common header values
List of top common Keep-Alive header values| Header value | Value prevalence |
|---|---|
| timeout=5, max=100 | 45.52% |
| timeout=15 | 9.23% |
| timeout=5 | 6.37% |
| timeout=5, max=75 | 5.27% |
| timeout=2, max=100 | 4.36% |
| timeout=3, max=100 | 4.09% |
| timeout=15, max=100 | 2.66% |
| timeout=2, max=1000 | 2.51% |
| timeout=20 | 1.79% |
| timeout=10 | 1.50% |
| timeout=60 | 1.26% |
| timeout=30 | 1.16% |
| timeout=1, max=100 | 0.79% |
| timeout=10, max=100 | 0.67% |
| timeout=5, max=500 | 0.54% |
| timeout=5, max=200 | 0.45% |
| timeout=2, max=500 | 0.44% |
| timeout=3, max=500 | 0.43% |
| timeout=5, max=150 | 0.41% |
| timeout=5, max=99 | 0.32% |