X-FEServer
HTTP response headerThis header is optional. The X-FEServer header contains the name of the server(s) that routed the request
Header usage statistics
X-FEServer response header information and usage statistics.| Websites using header X-FEServer | 19,433 |
| Percentage of websites that use X-FEServer header | <0.1% |
| Total discovered header values | More than 10,000 |
| Header uses directives | No |
| Header values are unique or random | No |
| Most popular in the country |  US |
X-FEServer Directives
X-FEServer directives value information and usage statistics| Directive | Share | Websites count | Unique Values |
|---|
Connected technologies
Technologies that utilize the header Outlook Web App, category Web Mail, total 21,753 websites |
Distribution by websites popularity
X-FEServer detection in the top websites by popularity| Top 10k sites | 5 websites |
| Top 100k sites | 11 websites |
| Top 1m sites | 140 websites |
Websites utilizing X-FEServer
List of websites that use X-FEServer header| Domain | Country | Rank | Contacts |
|---|---|---|---|
| US | 1,610 | ||
| US | 1,859 | ||
| US | 3,440 | ||
| US | 3,440 | ||
| US | 4,336 | ||
 DE | 29,954 |
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-FEServer header values| Header value | Value prevalence |
|---|---|
| 2.46% | |
| EXCHANGE | 2.16% |
| EX01 | 0.73% |
| EXCHANGE2016 | 0.62% |
| EX1 | 0.43% |
| EX2016 | 0.43% |
| EXCH01 | 0.41% |
| EXCHANGE01 | 0.39% |
| MAIL2 | 0.39% |
| EXCHANGE2019 | 0.38% |
| EXCAS05 | 0.33% |
| MAIL01 | 0.31% |
| EXCH | 0.29% |
| MAILSERVER | 0.28% |
| EXCHANGE1 | 0.27% |
| MAIL1 | 0.27% |
| EXCH1 | 0.27% |
| EX02 | 0.25% |
| SERVER | 0.25% |
| EXCH2016 | 0.25% |