Keep-Alive

HTTP response header

Header usage statistics

Keep-Alive response header information and usage statistics.

Websites using header Keep-Alive 29,879,624
Percentage of websites that use Keep-Alive header 30.17%
Total discovered header values 6,430
Header uses directives Yes
Header values are unique or random No
Most popular in the country United States of America

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 100.00% 29,879,336 139
max 81.89% 24,468,193 796

Distribution by websites popularity

Keep-Alive detection in the top websites by popularity

Top 10k sites 1,650 websites
Top 100k sites 23,353 websites
Top 1m sites 325,305 websites

Websites utilizing Keep-Alive

List of websites that use Keep-Alive header

Domain Country Rank Contacts
gmpg.org Canada 10
sistemas.ufsc.br Brazil 37
idp.ecolint.ch Switzerland 120
cpanel.com United States of America 133
weebly.com United States of America 136
www.weebly.com United States of America 136
See full domain list
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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 42.93%
timeout=15 8.59%
timeout=2, max=100 6.65%
timeout=5, max=75 4.68%
timeout=3, max=100 4.02%
timeout=15, max=100 3.49%
timeout=5 3.14%
timeout=20 2.50%
timeout=2, max=1000 1.50%
timeout=60 1.28%
timeout=30 1.21%
timeout=10 1.02%
timeout=1, max=100 0.89%
timeout=10, max=100 0.68%
timeout=5, max=97 0.58%
timeout=5, max=500 0.56%
timeout=5, max=200 0.55%
timeout=3, max=500 0.53%
timeout=2, max=500 0.49%
timeout=5, max=150 0.45%