X-Fastly-Pre-Flight-Cache

HTTP response header

Header usage statistics

X-Fastly-Pre-Flight-Cache response header information and usage statistics.
Websites using header X-Fastly-Pre-Flight-Cache7
Percentage of websites that use X-Fastly-Pre-Flight-Cache header<0.1%
Total discovered header values3
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country GB

X-Fastly-Pre-Flight-Cache Directives

X-Fastly-Pre-Flight-Cache directives value information and usage statistics
DirectiveShareWebsites countUnique Values

X-Fastly-Pre-Flight-Cache header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing X-Fastly-Pre-Flight-Cache

List of websites that use X-Fastly-Pre-Flight-Cache header
DomainCountryRankContacts
www.bbc.co.uk GB473
www.bbc.com GB714
search.bbc.co.uk GB432,569
account.bbc.com GB638,018
session.bbc.co.uk GB4,094,706
www.stage.bbc.co.uk GB6,617,040
See full domain list

Common header values

List of top common X-Fastly-Pre-Flight-Cache header values
Header valueValue prevalence
MISS, HIT71.43%
HIT, HIT14.29%
MISS, MISS14.29%