expires

HTTP response header

Gives the date/time after which the response is considered stale

Header usage statistics

expires response header information and usage statistics.

Websites using header expires 116,969
Percentage of websites that use expires header 1.10%
Total discovered header values 62,445
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Drupal, category Content Management System, total 116,244 websites

Distribution by websites popularity

expires detection in the top websites by popularity

Top 10k sites 191 websites
Top 100k sites 1,152 websites
Top 1m sites 12,006 websites

Websites utilizing expires

List of websites that use expires header

Domain Country Rank Contacts
www.eventbrite.com United States of America 60
www.yelp.com United States of America 73
www.wix.com Israel 88
www.bbc.co.uk United Kingdom 108
www.w3.org United States of America 110
tripadvisor.com United States of America 114
See full domain list
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Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common expires header values

Header value Value prevalence
Thu, 01 Jan 1970 00:00:00 GMT 12.34%
Thu, 19 Nov 1981 08:52:00 GMT 11.39%
-1 8.87%
Mon, 26 Jul 1997 05:00:00 GMT 3.72%
0 2.47%
Sun, 19 Nov 1978 05:00:00 GMT 1.28%
Wed, 11 Jan 1984 05:00:00 GMT 1.04%
Wed, 17 Aug 2005 00:00:00 GMT 0.86%
Mon, 29 Oct 1923 20:30:00 GMT 0.56%
Fri, 01 Jan 1990 00:00:00 GMT 0.31%
Thu, 01 Jan 1970 00:01:48 GMT 0.20%
Thu, 01 Jan 1970 00:00:01 GMT 0.18%
Mon, 1 Jan 2001 00:00:00 GMT 0.11%
Sat, 26 Jul 1997 05:00:00 GMT 0.10%
Thu, 31 Dec 2037 23:55:55 GMT 0.04%
Thu, 01 Jan 1970 00:00:00 GMT, -1 0.04%
Mon, 01 Jan 2000 01:01:42 GMT 0.03%
Thu, 01 Dec 1994 16:00:00 GMT 0.03%
Mon, 20 Dec 1998 01:00:00 GMT 0.03%
Wed, 31 Dec 1969 23:59:59 GMT 0.02%