Pragma

HTTP response header

The only directive defined in HTTP/1.1 is the no-cache directive. It is used to tell caching proxies to contact the server for the requested document instead of using its local cache

Header usage statistics

Pragma response header information and usage statistics.

Websites using header Pragma13,775,287
Percentage of websites that use Pragma header14.44%
Total discovered header values401
Header uses directivesYes
Header values are unique or randomNo
Most popular in the country US

Pragma directives (1 total)

  • no-cache

Pragma Directives

Pragma directives value information and usage statistics

DirectiveShareWebsites countUnique Values
no-cache97.72%13,461,5224

Distribution by websites popularity

Pragma detection in the top websites by popularity

Top 10k sites2,064 websites
Top 100k sites20,012 websites
Top 1m sites203,427 websites

Websites utilizing Pragma

List of websites that use Pragma header

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Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Pragma header values

Header valueValue prevalence
no-cache97.37%
public2.03%
cache0.20%
no-cache, no-cache0.08%
private0.08%
No-Cache,No-Cache0.07%
nocache0.05%
no-store0.03%
no-cache,no-cache,no-cache,no-cache,no-cache0.01%
no-cache, no-store0.01%
no-store,no-cache0.01%
public, must-revalidate, max-age=100.00%
no-cache,no-cache,no-cache0.00%
no-cache,no-cache,no-cache,no-cache0.00%
no-cache,no-cache,no-cache,no-cache,no-cache,no-cache0.00%
no-cache,no-store0.00%
no-store, no-cache0.00%
-0.00%
max-age=3000.00%
no-cache, no-cache, no-cache0.00%