X-DNSBL

HTTP response header

Header usage statistics

X-DNSBL response header information and usage statistics.
Websites using header X-DNSBL19,524
Percentage of websites that use X-DNSBL header<0.1%
Total discovered header values2
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

X-DNSBL Directives

X-DNSBL directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Websites utilizing X-DNSBL

List of websites that use X-DNSBL header
DomainCountryRankContacts
nicksherman.com Canada17,798
swisstools.net Canada62,723
brucelindbloom.com Canada154,585
mellenpress.com Canada180,499
home2.btconnect.com Canada205,818
chinese-embassy.org.uk Canada210,874
See full domain list

Common header values

List of top common X-DNSBL header values
Header valueValue prevalence
Spam Sources58.20%
Windows Exploits41.80%