| Name | Lines of code | Maintainability | Test coverage |
| src/Auth/Digest/ResponseParams.php | 65 | A 0 mins | A 100% |
| src/Header/ViaHeader.php | 109 | A 0 mins | A 100% |
| src/Header/NameAddrHeader.php | 148 | A 0 mins | A 100% |
| src/Auth/Digest/AbstractParams.php | 191 | A 0 mins | A 100% |
| src/Response.php | 195 | A 0 mins | A 100% |
| src/Header/ContactHeader.php | 205 | A 0 mins | A 100% |
| src/URI.php | 252 | A 0 mins | A 100% |
| src/Message.php | 475 | A 0 mins | A 100% |