Character Addition

Inserts an extra character at every position in the domain. Catches users who accidentally hit an adjacent key.

How It Works

This technique inserts every letter (a-z) at every position in the domain name. It generates a large number of variations (26 × N+1 positions). It catches scenarios where users accidentally press an extra key while typing, or where attackers create plausible-looking extended domain names.

Real-World Examples

  • googles.com (adding "s" to google)
  • faceboook.com (adding extra "o")
  • twitterr.com (adding extra "r")

Prevention Tips

  • Due to the high volume of variations, focus on registering additions that form real words or common patterns.
  • Monitor for additions that create plural forms or common suffixes (-ing, -ed, -er).
  • Use wildcard DNS monitoring to catch any new domains similar to yours.