TLS Versions
Versions
TLS has three places for versions in the Client Hello:
- Record version
- Handshake version
- supported_versions extension (in TLS 1.3)
Max TLS versions
This table lists the maximum supported version of connections, either from the Handshake version, or the first (non-GREASE) listed in the supported_versions extension.
| Rank | Version | Connections |
|---|---|---|
| 1 | TLS 1.3 (0x0304) | 83.3% |
| 2 | TLS 1.2 (0x0303) | 16.3% |
| 3 | TLS 1.0 (0x0301) | 0.4% |
| 4 | TLS 1.1 (0x0302) | 0.0% |
| 5 | TLS 1.3-draft-23 (0x7f17) | 0.0% |
| 6 | TLS 1.3-draft-18 (0x7f12) | 0.0% |
| 7 | SSL 3.0 (0x0300) | 0.0% |
| 8 | TLS 1.3-draft-28 (0x7f1c) | 0.0% |
| 9 | Unknwon (0x7e02) | 0.0% |
| 10 | Unknwon (0x7e01) | 0.0% |
| 11 | TLS 1.3-draft-26 (0x7f1a) | 0.0% |
| 12 | TLS 1.3-draft-20 (0x7f14) | 0.0% |
| 13 | TLS 1.3-draft-22 (0x7f16) | 0.0% |
Top supported_versions
This table breaks down the percent of connections that send the supported_versions extension (defined by TLS 1.3), and what version they support.
| Rank | Supported Version | Fingerprints | Connections |
|---|---|---|---|
| 1 | TLS 1.3 (0x0304) | 1864 | 83.3% |
| 2 | TLS 1.2 (0x0303) | 1925 | 83.0% |
| 3 | TLS 1.1 (0x0302) | 1271 | 72.0% |
| 4 | TLS 1.0 (0x0301) | 1206 | 72.0% |
| 5 | GREASE (0x0a0a) | 370 | 69.9% |
| 6 | Unknown (0xfb1a) | 29 | 0.6% |
| 7 | SSL 3.0 (0x0300) | 83 | 0.2% |
| 8 | TLS 1.3-draft-23 (0x7f17) | 17 | 0.0% |
| 9 | TLS 1.3-draft-18 (0x7f12) | 15 | 0.0% |
| 10 | TLS 1.3-draft-28 (0x7f1c) | 7 | 0.0% |
| 11 | Unknown (0x7e02) | 4 | 0.0% |
| 12 | Unknown (0x7e01) | 3 | 0.0% |
| 13 | TLS 1.3-draft-26 (0x7f1a) | 2 | 0.0% |
| 14 | TLS 1.3-draft-27 (0x7f1b) | 1 | 0.0% |
| 15 | SSL 2.0 (0x0200) | 1 | 0.0% |