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 | 23,949,891 |
| Percentage of websites that use Keep-Alive header | 29.64% |
| Total discovered header values | 5,429 |
| 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% | 23,949,705 | 91 |
| max | 78.18% | 18,724,144 | 461 |
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 | 141 | ||
 Russia | 192 | ||
| United States | 194 | ||
 Brazil | 196 | ||
| United States | 211 | ||
 British Virgin Islands | 224 |
Common header values
List of top common Keep-Alive header values| Header value | Value prevalence |
|---|---|
| timeout=5, max=100 | 45.61% |
| timeout=15 | 9.29% |
| timeout=5 | 6.34% |
| timeout=5, max=75 | 5.19% |
| timeout=2, max=100 | 4.36% |
| timeout=3, max=100 | 4.11% |
| timeout=15, max=100 | 2.68% |
| timeout=2, max=1000 | 2.55% |
| timeout=20 | 1.78% |
| timeout=10 | 1.57% |
| timeout=60 | 1.24% |
| timeout=30 | 1.17% |
| timeout=1, max=100 | 0.77% |
| 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=5, max=150 | 0.42% |
| timeout=3, max=500 | 0.41% |
| timeout=5, max=99 | 0.31% |