x-ttfb

HTTP response header

Header usage statistics

x-ttfb response header information and usage statistics.
Websites using header x-ttfb32,342
Percentage of websites that use x-ttfb header<0.1%
Total discovered header values4,029
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

x-ttfb header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing x-ttfb

List of websites that use x-ttfb header
DomainCountryRankContacts
smugmug.com United States1,182
www.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
See full domain list

Common header values

List of top common x-ttfb header values
Header valueValue prevalence
0.01490.51%
0.01420.50%
0.01510.49%
0.01450.49%
0.01590.49%
0.01480.49%
0.01440.48%
0.01530.48%
0.01460.48%
0.01540.48%
0.01560.46%
0.01520.46%
0.01430.45%
0.01580.43%
0.01550.42%
0.01380.42%
0.01370.40%
0.0140.40%
0.01620.40%
0.01470.40%