X-Grace

HTTP response header

Header usage statistics

X-Grace response header information and usage statistics.

Websites using header X-Grace 488
Percentage of websites that use X-Grace header <0.1%
Total discovered header values 65
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

X-Grace detection in the top websites by popularity

Top 10k sites 5 websites
Top 100k sites 17 websites
Top 1m sites 137 websites

Websites utilizing X-Grace

List of websites that use X-Grace header

Domain Country Rank Contacts
loc.gov United States of America 504
www.rtve.es United States of America 2,240
www.contactmusic.com United States of America 3,819
www.game.co.uk United Kingdom 5,836
www.chill.com 6,563
www.evelinalondon.nhs.uk United Kingdom 13,582
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 X-Grace header values

Header value Value prevalence
none 31.76%
full 9.22%
259200.000 7.79%
86400.000 5.33%
0.000 4.30%
10 4.30%
120.000 2.87%
10.000 2.66%
1 2.25%
Fresh Hit 1.84%
3600 1.84%
2592000.000 1.43%
6h 1.43%
605100.000 1.23%
stale 1.23%
72h 1.02%
true 1.02%
7200.000 1.02%
Stale (Backend ok; no grace on webcache1) 1.02%
900 0.82%