X (Twitter) weighted count — the official rule (any URL = flat 23, an emoji = 2)
0 / 280
280 is the limit for free accounts (CJK text effectively 140). Split your draft if you are over. Rules may change.
★It is not “full-width counts 2”. Only code points 0–4351 and the
three ranges 8192–8205 / 8208–8223 / 8242–8247 weigh 1 (X’s published configuration v3).
So …, €, → and Vietnamese ế
weigh 2 even though they look narrow. An emoji weighs 2 per grapheme cluster — skin tone, ZWJ and flags do not add.