Server Features » TLS Key exchange group » DH
TLS Key exchange group: DH
Percentage of IRC SSL/TLS servers with key exchange Diffie-Hellman (DH) - Any bit size (old, rarely used).Showing percentages by IRC server software.
About this test result: Old-style Diffie-Hellman (DH) key exchange. This uses static keys and provides no Forward Secrecy. It's old and rarely used.
Table
Percentage of IRC SSL/TLS servers with key exchange Diffie-Hellman (DH) - Any bit size (old, rarely used).Showing percentages by IRC server software.
| Software | Dec 2025 |
|---|---|
| charybdis | 13% |
| Hybrid | 4% |
| InspIRCd | 4% |
| ngircd | 1% |
| Ratbox | 10% |