Log in with Twitter

 Log in with Twitter  is (AKA Sign in with Twitter ) Twitter's silo sign-in service.

How not to
You should use and support IndieAuth instead, or if you want to provide fallback for Twitter profiles, support RelMeAuth and Twitter log-in as a means for that.

Button
Twitter's Log in with Twitter (archived 2023-02-02) shows the following suggested button:

https://cdn.cms-twdigitalassets.com/content/dam/developer-twitter/auth-docs/sign-in-with-twitter-gray.png.twimg.1920.png

Or link style:

https://cdn.cms-twdigitalassets.com/content/dam/developer-twitter/auth-docs/sign-in-with-twitter-link.png.twimg.1920.png

Sign in with Twitter
Log in with Twitter was previously called "Sign in with Twitter" and documented at:
 * https://dev.twitter.com/web/sign-in (could use an Internet Archive link for the older version with that name)