Blacklist Check

Search a domain or IP address to see if the entry is listed in RPZ zones maintained by SWITCH or SURBL as part of the SWITCH DNS Firewall service:

Please note

  • Only characters a-z, 0-9, dot '.', colon ':', dash '-' and underscore '_' are allowed
  • Please enter IP addresses in normal forward order such as 130.59.31.80 or 2001:620:0:ff::5c
Contact SWITCH-CERT

Our offer

– SWITCH DNS Firewall no-obligation 60-day trial
– Consulting services for DNS RPZ implementation
– Further information on the SWITCH DNS Firewall


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