This Phishing Attack is Almost Impossible to Detect On Chrome, Firefox and Opera https://thehackernews.com/2017/04/unicode-Punycode-phishing-attack.html
Everyone's focusing on the 'unicode confusables' issue, but it's been a large issue in the email world for years as a spam filter bypass.
Given typical phishing site behavior, https://github.com/hasameli/foghorn is a mitigation that can work for this.
[ The project was built for counter-phishing in general, so it handles this as a special case ;-) ]
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