x-ttfb

HTTP response header

Header usage statistics

x-ttfb response header information and usage statistics.
Websites using header x-ttfb23,435
Percentage of websites that use x-ttfb headerless than 0.1%
Total discovered header values3,671
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

x-ttfb Directives

x-ttfb directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Websites utilizing x-ttfb

List of websites that use x-ttfb header
DomainCountryRankContacts
smugmug.com United States1,182
photos.smugmug.com United States1,245
cdn.smugmug.com United States1,269
secure.smugmug.com United States1,380
live.staticflickr.com United States1,713
farm8.staticflickr.com United States2,397
See full domain list

Common header values

List of top common x-ttfb header values
Header valueValue prevalence
0.01560.84%
0.01510.83%
0.01580.82%
0.01460.82%
0.01590.80%
0.0150.76%
0.01430.76%
0.01570.76%
0.01540.75%
0.01470.73%
0.01620.73%
0.01520.73%
0.01490.71%
0.01480.70%
0.01550.70%
0.01610.68%
0.01410.68%
0.01450.66%
0.01380.65%
0.01420.64%