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Ask HN: How 𝕏.com Resolves to X.com?

• lanna 3y ago
  [deleted]
  • sp332 3y ago
    It doesn't show up in a couple of DNS checkers that I tried, and I can't find a punycode converter that does anything beyond spit out a plain X. So my guess is that something in the browser normalizes it before it ever gets resolved by DNS.
• deleted 3y ago
  [deleted]
• jadamson 3y ago
  It's silently converted to just "x.com", though I'm not sure what standard that's based on. It's not an IDN as the other comment suggests, as that character is disallowed under IDNA2008.
• spansoa 3y ago
  Homoglyph[0] attack / IDN homograph attack[1] mitigation in the browser [0] https://en.wikipedia.org/wiki/Homoglyph https://en.wikipedia.org/wiki/Homoglyph [1] https://en.wikipedia.org/wiki/IDN_homograph_attack https://en.wikipedia.org/wiki/IDN_homograph_attack