X-Pass-Why
HTTP response headerThe number tells the user how many times this version of a page has been served from the cache. A MISS indicates the page was not served from cache. The x-pass-why header will tell the user the reason why the request did not hit the cache.
Header usage statistics
X-Pass-Why response header information and usage statistics.| Websites using header X-Pass-Why | 34,164 |
| Percentage of websites that use X-Pass-Why header | <0.1% |
| Total discovered header values | 12 |
| Header uses directives | No |
| Header values are unique or random | No |
| Most popular in the country |  US |
X-Pass-Why Directives
X-Pass-Why directives value information and usage statistics| Directive | Share | Websites count | Unique Values |
|---|
Connected technologies
Technologies that utilize the header WP Engine, category Web Hosting, total 437,423 websites |
Distribution by websites popularity
X-Pass-Why detection in the top websites by popularity| Top 10k sites | 16 websites |
| Top 100k sites | 189 websites |
| Top 1m sites | 1,963 websites |
Websites utilizing X-Pass-Why
List of websites that use X-Pass-Why header| Domain | Country | Rank | Contacts |
|---|---|---|---|
| US | 2,931 | ||
| US | 3,773 | ||
| US | 4,015 | ||
| US | 4,338 | ||
| US | 5,115 | ||
| US | 5,751 |
Flat price per the report, subscription is not required.
Geographical Distribution
Header usage distribution by websites across the globe.Common header values
List of top common X-Pass-Why header values| Header value | Value prevalence |
|---|---|
| custom-path | 43.75% |
| special path | 28.90% |
| special param | 6.11% |
| special cookie | 5.32% |
| pass-path | 4.65% |
| custom-cookie | 4.19% |
| logged-in | 3.18% |
| wp-admin | 3.00% |
| custom-args | 0.39% |
| pass-cookie | 0.26% |
| auth | 0.13% |
| wpe-cookie | 0.12% |