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-FEServer19,433
Percentage of websites that use X-FEServer header<0.1%
Total discovered header valuesMore than 10,000
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country US

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 21,753 websites

Distribution by websites popularity

X-FEServer detection in the top websites by popularity

Top 10k sites5 websites
Top 100k sites11 websites
Top 1m sites140 websites

Websites utilizing X-FEServer

List of websites that use X-FEServer header

DomainCountryRankContacts
outlook.live.com US1,610
outlook.office365.com US1,859
outlook.com US3,440
www.outlook.com US3,440
outlook.office.com US4,336
ne.de DE29,954
See full domain list
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 valueValue prevalence
MAIL2.46%
EXCHANGE2.16%
EX010.73%
EXCHANGE20160.62%
EX10.43%
EX20160.43%
EXCH010.41%
EXCHANGE010.39%
MAIL20.39%
EXCHANGE20190.38%
EXCAS050.33%
MAIL010.31%
EXCH0.29%
MAILSERVER0.28%
EXCHANGE10.27%
MAIL10.27%
EXCH10.27%
EX020.25%
SERVER0.25%
EXCH20160.25%