Why does the browser show a trusted HTTPS connection?

Question

Digital certificates

Actually, everything is visible on the screen - a wildcard certificate was issued that does not fit the open domain, but the connection is "green". Enlighten?

Answer 1

These are the so-called multi-domain certificates, when many completely different names can be included in one certificate.
The easiest option is to buy, for example, here https://www.firstssl.ru/ssl/md
Multi-domain wildcards are more expensive, but also without problems.

Answer 2

Composition > Subject Alternative Name