x-ttfb
HTTP response headerHeader usage statistics
x-ttfb response header information and usage statistics.| Websites using header x-ttfb | 23,435 |
| Percentage of websites that use x-ttfb header | less than 0.1% |
| Total discovered header values | 3,671 |
| 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 |
|---|---|
| 0.0156 | 0.84% |
| 0.0151 | 0.83% |
| 0.0158 | 0.82% |
| 0.0146 | 0.82% |
| 0.0159 | 0.80% |
| 0.015 | 0.76% |
| 0.0143 | 0.76% |
| 0.0157 | 0.76% |
| 0.0154 | 0.75% |
| 0.0147 | 0.73% |
| 0.0162 | 0.73% |
| 0.0152 | 0.73% |
| 0.0149 | 0.71% |
| 0.0148 | 0.70% |
| 0.0155 | 0.70% |
| 0.0161 | 0.68% |
| 0.0141 | 0.68% |
| 0.0145 | 0.66% |
| 0.0138 | 0.65% |
| 0.0142 | 0.64% |