Twitter only allows a-z, 0-9, and _ So no domain-names-as-usernames there. | Hacker News

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		edent on July 17, 2019 \| parent \| context \| favorite \| on: How I got my username on nearly every site Twitter only allows a-z, 0-9, and _ So no domain-names-as-usernames there.

hannasanarion on July 17, 2019 [–]

You can use the first half of your domain name. I saw that on a business card once, the guy wrote his email and then highlighted and labeled the parts of it for Twitter and Mastodon.

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