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 | 2,882,275 |
| Percentage of websites that use Keep-Alive header | 26.52% |
| Total discovered header values | 3,462 |
| Header uses directives | Yes |
| Header values are unique or random | No |
| Most popular in the country | 
United States of America
|
Keep-Alive Directives
Keep-Alive directives value information and usage statistics| Directive | Share | Websites count | Unique Values |
|---|---|---|---|
| timeout | 81.66% | 2,353,715 | 164 |
| max | 64.83% | 1,868,459 | 939 |
Distribution by websites popularity
Keep-Alive detection in the top websites by popularity| Top 10k sites | 1,984 websites |
| Top 100k sites | 26,355 websites |
| Top 1m sites | 339,621 websites |
Websites utilizing Keep-Alive
List of websites that use Keep-Alive header| Domain | Country | Rank | Contacts |
|---|---|---|---|
|
|
Canada
|
11 | |
|
|
United States of America
|
72 | |
|
|
United States of America
|
72 | |
|
|
United Kingdom
|
108 | |
|
|
United States of America
|
123 | |
|
|
United States of America
|
140 |
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Geographical Distribution
Header usage distribution by websites across the globe.Common header values
List of top common Keep-Alive header values| Header value | Value prevalence |
|---|---|
| timeout=5, max=100 | 39.98% |
| timeout=5, max=75 | 7.11% |
| timeout=2, max=100 | 7.06% |
| timeout=15 | 6.45% |
| timeout=5 | 5.25% |
| timeout=20 | 4.87% |
| timeout=15, max=100 | 4.23% |
| timeout=3, max=100 | 3.08% |
| timeout=2, max=1000 | 1.75% |
| timeout=30 | 1.32% |
| timeout=60 | 1.20% |
| timeout=10 | 0.91% |
| timeout=1, max=100 | 0.90% |
| timeout=5, max=500 | 0.90% |
| timeout=3, max=500 | 0.85% |
| timeout=2, max=500 | 0.67% |
| timeout=10, max=100 | 0.67% |
| timeout=5, max=200 | 0.61% |
| timeout=5, max=150 | 0.39% |
| timeout=10, max=75 | 0.29% |