HTTP response header

Header "X-Cache-Group" is used to tag the clients about the cache-group they belong to. Once the origin server identifies the client ( usually on the first request) it tags the client using the X-Cache-Group header

Header usage statistics

X-Cache-Group response header information and usage statistics.

Websites using header X-Cache-Group414,114
Percentage of websites that use X-Cache-Group header0.43%
Total discovered header values7
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country US

X-Cache-Group Directives

X-Cache-Group directives value information and usage statistics

DirectiveShareWebsites countUnique Values

Distribution by websites popularity

X-Cache-Group detection in the top websites by popularity

Top 10k sites142 websites
Top 100k sites2,144 websites
Top 1m sites22,762 websites

Websites utilizing X-Cache-Group

List of websites that use X-Cache-Group header

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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-Cache-Group header values

Header valueValue prevalence