I've found this response from LE engineer:
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Https without SNI | 7 | 5810 | July 6, 2017 | |
| Certificate for Server IP | 5 | 3515 | January 1, 2017 | |
| "This site works only in browsers with SNI support." | 6 | 33684 | August 14, 2016 | |
| Do I need a dedicated IP for the certificate | 13 | 31676 | December 3, 2016 | |
| Only one certificate can be used for a given IP address and port combination | 11 | 2302 | July 14, 2017 |