X-FEServer

HTTP response header

This 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-FEServer13,519
Percentage of websites that use X-FEServer headerless than 0.1%
Total discovered header values9,161
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

X-FEServer Directives

X-FEServer directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Connected technologies

Technologies that utilize the header
Outlook Web App, category Web Mail, total 15,239 websites

Websites utilizing X-FEServer

List of websites that use X-FEServer header
DomainCountryRankContacts
outlook.live.com United States1,610
outlook.office365.com United States1,859
outlook.com United States3,440
eur01.safelinks.protection.outlook.com United States4,256
outlook.office.com United States4,336
eur03.safelinks.protection.outlook.com United States4,684
See full domain list

Common header values

List of top common X-FEServer header values
Header valueValue prevalence
MAIL2.43%
EXCHANGE1.75%
EX010.64%
EXCHANGE20190.64%
EX10.53%
EXCAS100.46%
EXCH010.42%
EXCHANGE20160.39%
MAIL20.35%
MAIL010.35%
EX20160.33%
EXCH0.32%
EX0.30%
EX20190.29%
EXCHANGE010.26%
SERVER0.26%
EXCH20190.26%
MAIL10.25%
EX020.22%
EXCHANGE10.22%