For trusting your server side certificate, the certificate should be issued by a known and Visa trusted Certificate Authority (CA). Self-signed certificates are not accepted.
The following table lists the cerrtifying authorties.
| Certification Authority | Root Certificate Types | SHA1-Thumbprint |
| Actalis | Actalis EU Qualified Certificates CA G1 | f3 73 b3 87 06 5a 28 84 8a f2 f3 4a ce 19 2b dd c7 8e 9c ac |
| Actalis | Actalis Qualified Certificates CA G1 | 76 59 4a 51 3e 85 18 2b ef e8 7f 23 4e a5 76 4d d9 d2 a8 ad |
| Actalis | Actalis Server Authentication Root CA | 36 08 4e ec 1e d7 3b b4 c9 d6 8e fd 13 a8 17 22 e8 27 7d 5f |
| Add Trust | AddTrust External CA Root | 02 fa f3 e2 91 43 54 68 60 78 57 69 4d f5 e4 5b 68 85 18 68 |
| Actalis | CA Qualificata BNL erogata da Actalis | 27 05 f5 a7 7d 32 66 26 d9 bc 28 0f 91 7d d4 2a b2 14 55 c5 |
| Certum | Certum Certification Authority (Root) | 62 52 dc 40 f7 11 43 a2 2f de 9e f7 34 8e 06 42 51 b1 81 18 |
| Certum | Certum Trusted Network CA | 07 e0 32 e0 20 b7 2c 3f 19 2f 06 28 a2 59 3a 19 a7 0f 06 9e |
| Verisign | Class 1 Public Primary Certification Authority | 90 ae a2 69 85 ff 14 80 4c 43 49 52 ec e9 60 84 77 af 55 6f |
| Verisign | Class 1 Public Primary Certification Authority - G2 | 27 3e e1 24 57 fd c4 f9 0c 55 e8 2b 56 16 7f 62 f5 32 e5 47 |
| Verisign | Class 2 Public Primary Certification Authority | 67 82 aa e0 ed ee e2 1a 58 39 d3 c0 cd 14 68 0a 4f 60 14 2a |
| Verisign | Class 2 Public Primary Certification Authority - G2 | b3 ea c4 47 76 c9 c8 1c ea f2 9d 95 b6 cc a0 08 1b 67 ec 9d |
| Verisign | Class 3 Public Primary Certification Authority | a1 db 63 93 91 6f 17 e4 18 55 09 40 04 15 c7 02 40 b0 ae 6b |
| Verisign | Class 4 Public Primary Certification Authority - G2 | 0b 77 be bb cb 7a a2 47 05 de cc 0f bd 6a 02 fc 7a bd 9b 52 |
| Comodo | Comodo RSA Certification Authority | af e5 d2 44 a8 d1 19 42 30 ff 47 9f e2 f8 97 bb cd 7a 8c b4 |
| DigiCert | DigiCert Global Root CA | a8 98 5d 3a 65 e5 e5 c4 b2 d7 d6 6d 40 c6 dd 2f b1 9c 54 36 |
| DigiCert | DigiCert Global Root G2 | df 3c 24 f9 bf d6 66 76 1b 26 80 73 fe 06 d1 cc 8d 4f 82 a4 |
| DigiCert | DigiCert Global Root G3 | 7e 04 de 89 6a 3e 66 6d 00 e6 87 d3 3f fa d9 3b e8 3d 34 9e |
| DigiCert | DigiCert High Assurance EV Root CA | 5f b7 ee 06 33 e2 59 db ad 0c 4c 9a e6 d3 8f 1a 61 c7 dc 25 |
| DigiCert | DigiCert Trusted Root G4 | dd fb 16 cd 49 31 c9 73 a2 03 7d 3f c8 3a 4d 7d 77 5d 05 e4 |
| Entrust | Entrust Root Certification Authority | b3 1e b1 b7 40 e3 6c 84 02 da dc 37 d4 4d f5 d4 67 49 52 f9 |
| Entrust | Entrust Root Certification Authority - G2 | 8c f4 27 fd 79 0c 3a d1 66 06 8d e8 1e 57 ef bb 93 22 72 d4 |
| Entrust | Entrust Root Certification Authority - G3 | ae 85 69 d9 4f 4a b1 c4 64 ad 9b 7c fd 78 40 b0 e3 9d af 66 |
| GeoTrust | GeoTrust Global CA | de 28 f4 a4 ff e5 b9 2f a3 c5 03 d1 a3 49 a7 f9 96 2a 82 12 |
| GeoTrust | GeoTrust Primary Certification Authority | 32 3c 11 8e 1b f7 b8 b6 52 54 e2 e2 10 0d d6 02 90 37 f0 96 |
| GeoTrust | GeoTrust Primary Certification Authority - G2 | 8d 17 84 d5 37 f3 03 7d ec 70 fe 57 8b 51 9a 99 e6 10 d7 b0 |
| GeoTrust | GeoTrust Universal CA | e6 21 f3 35 43 79 05 9a 4b 68 30 9d 8a 2f 74 22 15 87 ec 79 |
| GeoTrust | GeoTrust Universal CA 2 | 37 9a 19 7b 41 85 45 35 0c a6 03 69 f3 3c 2e af 47 4f 20 79 |
| GlobalSign | GlobalSign Root CA | b1 bc 96 8b d4 f4 9d 62 2a a8 9a 81 f2 15 01 52 a4 1d 82 9c |
| GlobalSign | GlobalSign Root CA - R2 | 75 e0 ab b6 13 85 12 27 1c 04 f8 5f dd de 38 e4 b7 24 2e fe |
| GlobalSign | GlobalSign Root CA - R3 | d6 9b 56 11 48 f0 1c 77 c5 45 78 c1 09 26 df 5b 85 69 76 ad |
| GoDaddy | GoDaddy Class 2 Certification Authority Root Certificate | 27 96 ba e6 3f 18 01 e2 77 26 1b a0 d7 77 70 02 8f 20 ee e4 |
| GoDaddy | GoDaddy Class 2 Certification Authority Root Certificate – G2 | 47 be ab c9 22 ea e8 0e 78 78 34 62 a7 9f 45 c2 54 fd e6 8b |
| QuoVadis | QuoVadis Limited Root CA 2 G3 | 09 3C 61 F3 8B 8B DC 7D 55 DF 75 38 02 05 00 E1 25 F5 C8 36 |
| SecureTrust | SecureTrust CA | 87 82 c6 c3 04 35 3b cf d2 96 92 d2 59 3e 7d 44 d9 34 ff 11 |
| USERTrust (Sectigo) | USERTrust RSA Certification Authority | 2b 8f 1b 57 33 0d bb a2 d0 7a 6c 51 f7 0e e9 0d da b9 ad 8e |
| Verisign | VeriSign Class 1 Public Primary Certification Authority - G3 | 20 42 85 dc f7 eb 76 41 95 57 8e 13 6b d4 b7 d1 e9 8e 46 a5 |
| Verisign | VeriSign Class 2 Public Primary Certification Authority - G3 | 61 ef 43 d7 7f ca d4 61 51 bc 98 e0 c3 59 12 af 9f eb 63 11 |
| Verisign | VeriSign Class 3 Public Primary Certification Authority - G4 | 22 d5 d8 df 8f 02 31 d1 8d f7 9d b7 cf 8a 2d 64 c9 3f 6c 3a |
| Verisign | VeriSign Class 3 Public Primary Certification Authority - G5 | 4e b6 d5 78 49 9b 1c cf 5f 58 1e ad 56 be 3d 9b 67 44 a5 e5 |
| Verisign | VeriSign Class 4 Public Primary Certification Authority - G3 | c8 ec 8c 87 92 69 cb 4b ab 39 e9 8d 7e 57 67 f3 14 95 73 9d |
| Verisign | VeriSign Universal Root Certification Authority | 36 79 ca 35 66 87 72 30 4d 30 a5 fb 87 3b 0f a7 7b b7 0d 54 |