X-W4U-Upstream
HTTP response headerHeader usage statistics
X-W4U-Upstream response header information and usage statistics.| Websites using header X-W4U-Upstream | 7,742 |
| Percentage of websites that use X-W4U-Upstream header | <0.1% |
| Total discovered header values | 40 |
| Header uses directives | No |
| Header values are unique or random | No |
| Most popular in the country | 
Czech Republic
|
Distribution by websites popularity
X-W4U-Upstream detection in the top websites by popularity| Top 10k sites | 0 websites |
| Top 100k sites | 0 websites |
| Top 1m sites | 44 websites |
Websites utilizing X-W4U-Upstream
List of websites that use X-W4U-Upstream header| Domain | Country | Rank | Contacts |
|---|---|---|---|
|
|
Czech Republic
|
209,843 | |
|
|
Czech Republic
|
209,843 | |
|
|
Czech Republic
|
238,435 | |
|
|
Czech Republic
|
315,583 | |
|
|
Czech Republic
|
315,583 | |
|
|
Czech Republic
|
328,341 |
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-W4U-Upstream header values| Header value | Value prevalence |
|---|---|
| data40_php74 | 20.68% |
| parking | 8.47% |
| data31_php56 | 7.54% |
| data29_php53 | 6.33% |
| data35_php71 | 6.23% |
| data37_php73 | 5.92% |
| data39_php73 | 5.32% |
| data30_php72 | 4.37% |
| data34_php56 | 4.18% |
| data33_php56 | 3.90% |
| data27_php4 | 3.64% |
| data28_php52 | 3.64% |
| data27_php52 | 3.32% |
| data32_php74 | 3.02% |
| data38_php73 | 2.92% |
| data28_php53 | 2.91% |
| data26_php52 | 1.90% |
| data26_php53 | 1.67% |
| data36_php70 | 1.38% |
| data29_php52 | 1.24% |