https://www.domcop.com/faq/no-pages-indexed
Some domains have the red exclamation mark set even though t...?
We flag a domain if any of the three conditions are met 1. No pages are indexed by Google. This is checked by issuing a site: domain query to Google a...
the redexclamation mark
https://www.ascii-code.com/33
ASCII Code 33 - Exclamation mark
In the 7-bit ASCII character set, ASCII code 33 is represented by the character !, also known as the exclamation mark.
ascii codeexclamation mark
https://emojipedia.org/exclamation-mark
❗ Red Exclamation Mark Emoji | Meaning, Copy And Paste
A large red exclamation mark (!) symbol emoji.
copy and pasteexclamation markredemojimeaning