HTTP response header

Header usage statistics

grace response header information and usage statistics.

Websites using header grace 26,452
Percentage of websites that use grace header <0.1%
Total discovered header values 68
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

grace detection in the top websites by popularity

Top 10k sites 13 websites
Top 100k sites 179 websites
Top 1m sites 921 websites

Websites utilizing grace

List of websites that use grace header

Domain Country Rank Contacts United States of America 2,050 Poland 2,913 United States of America 2,985 United States of America 3,270 United States of America 3,642 United States of America 5,085
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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common grace header values

Header value Value prevalence
none 79.26%
6h 14.94%
normal(limited) 1.73%
live 1.71%
Fresh Hit 0.29%
10800.000 0.28%
30s 0.28%
full 0.23%
21600.000 0.18%
grace 0.17%
12h 0.09%
hit 0.09%
yes (healthy) 0.06%
30.000 0.05%
259200.000 0.05%
within grace 0.05%
fromcache_expired_but_grace 0.04%
within ttl 0.04%
fetch 0.03%
healthy 0.03%