HTTP response header

Header usage statistics

X-ac response header information and usage statistics.

Websites using header X-ac586,558
Percentage of websites that use X-ac header0.61%
Total discovered header values143
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country US

X-ac Directives

X-ac directives value information and usage statistics

DirectiveShareWebsites countUnique Values

Distribution by websites popularity

X-ac detection in the top websites by popularity

Top 10k sites52 websites
Top 100k sites474 websites
Top 1m sites7,253 websites

Websites utilizing X-ac

List of websites that use X-ac header

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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-ac header values

Header valueValue prevalence
3.bur _bur52.63%
3.sea _bur27.44%
3.bur _atomic_bur5.06%
3.sea _atomic_bur4.32%
5.bur _atomic_bur3.95%
1.sea _bur2.06%
5.bur _bur1.64%
2.bur _atomic_bur0.48%
1.bur _atomic_bur0.48%
1.bur _bur0.48%
4.bur _atomic_bur0.43%
1.sea _atomic_bur0.25%
2.sea _atomic_bur0.21%
4.sea _atomic_bur0.18%
1.hhn _dfw0.14%
4.bur _bur0.04%
2.bur _bur0.03%
4.sea _bur0.02%
2.sea _bur0.02%
2.yyz _atomic_dca0.01%