x-ttfb
HTTP response headerHeader usage statistics
x-ttfb response header information and usage statistics.| Websites using header x-ttfb | 26,040 |
| Percentage of websites that use x-ttfb header | less than 0.1% |
| Total discovered header values | 1,005 |
| Header uses directives | No |
| Header values are unique or random | No |
| Most popular in the country |  United States |
x-ttfb Directives
x-ttfb directives value information and usage statistics| Directive | Share | Websites count | Unique Values |
|---|
Websites utilizing x-ttfb
List of websites that use x-ttfb header| Domain | Country | Rank | Contacts |
|---|---|---|---|
| United States | 1,182 | ||
| United States | 1,245 | ||
| United States | 1,269 | ||
| United States | 1,380 | ||
 live.staticflickr.com | United States | 1,713 | |
 farm8.staticflickr.com | United States | 2,397 |
Common header values
List of top common x-ttfb header values| Header value | Value prevalence |
|---|---|
| 0.0117 | 1% |
| 0.0119 | 1% |
| 0.0118 | 1% |
| 0.0113 | 1% |
| 0.012 | 1% |
| 0.0115 | 1% |
| 0.0112 | 1% |
| 0.0123 | 1% |
| 0.0114 | 1% |
| 0.0116 | 1% |
| 0.0122 | 1% |
| 0.011 | 1% |
| 0.0126 | 1% |
| 0.0121 | 1% |
| 0.0124 | 1% |
| 0.0111 | 1% |
| 0.0108 | 1% |
| 0.0109 | 1% |
| 0.0127 | 1% |
| 0.0125 | 1% |