Keep-Alive

HTTP response header

Header usage statistics

Keep-Alive response header information and usage statistics.

Websites using header Keep-Alive 105,696
Percentage of websites that use Keep-Alive header 0.92%
Total discovered header values 1,715
Header uses directives Yes
Header values are unique or random No
Most popular in the country Virgin Islands, British

Keep-Alive Directives (2 total)

  • max
  • timeout

Keep-Alive Directives

Keep-Alive directives value information and usage statistics

Directive Share Websites count Unique Values
timeout 81.73% 86,388 67
max 62.45% 66,002 785

Distribution by websites popularity

Keep-Alive detection in the top websites by popularity

Top 10k sites 100 websites
Top 100k sites 731 websites
Top 1m sites 9,167 websites

Websites utilizing Keep-Alive

List of websites that use Keep-Alive header

Domain Country Rank Contacts
usatoday.com United States of America 123
www.un.org United States of America 192
www.dailymotion.com France 341
imdb.me United States of America 448
docs.aws.amazon.com United States of America 476
azure.microsoft.com United States of America 615
See full domain list

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=15 10.30%
timeout=20 6.40%
timeout=5, max=100 4.87%
timeout=60 2.23%
timeout=30 1.85%
timeout=5, max=99 1.63%
timeout=5, max=128 1.44%
timeout=5 1.31%
timeout=5, max=127 1.27%
timeout=5, max=126 1.22%
timeout=5, max=98 1.14%
timeout=5, max=125 1.10%
timeout=5, max=120 1.09%
timeout=5, max=124 1.09%
timeout=5, max=123 1.06%
timeout=5, max=122 1.03%
timeout=5, max=119 1.01%
timeout=5, max=121 1.01%
timeout=5, max=97 0.98%
timeout=5, max=118 0.94%