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Input Validation

CF Hosts

Not accepted domains are:

  • Domain ending in .cf (eg. example.cf)
  • Domain ending in .ga (eg. example.ga)
  • Domain ending in .gq (eg. example.gq)
  • Domain ending in .ml (eg. example.ml)
  • Domain ending in .tk (eg. example.tk)

Regex used to match this: ^((?!(\.cf|\.ga|\.gq|\.ml|\.tk)$).)*$ You can try live here

CF Zones

Not accepted domains are:

  • Domain ending in .cf (eg. example.cf)
  • Domain ending in .ga (eg. example.ga)
  • Domain ending in .gq (eg. example.gq)
  • Domain ending in .ml (eg. example.ml)
  • Domain ending in .tk (eg. example.tk)

Regex used to match this: ^((?!(\.cf|\.ga|\.gq|\.ml|\.tk)$).)*$ You can try live here


If you find a field that you think it needs validation, please open an issue on github