Version: v3 Serial Number: 506207736308884121311148139837857506613681 Signature Algorithm: ECDSA-SHA384 Issuer: Country: US Organization: Let's Encrypt CommonName: E8 Validity: Not Before: 2026-02-11 15:20 UTC Not After : 2026-05-12 15:20 UTC Subject: CommonName: dev.zuul.leziedu.com Subject Public Key Info: Public Key Algorithm: ECDSA Public Key: 17:AD:D4:CA:38:BB:A7:72:7A:BE:1A:CB:E7:46:5E:F6: 40:8E:2B:17:34:E3:69:AC:31:56:EC:8A:EE:7E:CB:B2: E0:9C:FF:BE:E1:A4:6A:77:DC:9B:85:30:BB:CC:FF:42: 06:6A:1E:A1:C2:D7:67:7E:AB:5C:AF:C4:C0:68:B7:97 Authority Key Identifier: 8F:0D:13:A2:F6:2E:7E:D1:50:6C:33:18:38:5D:59:8E:23:72:91:CA Subject Key Identifier: A3:51:75:6C:77:2C:CC:91:D2:10:BB:69:5B:1C:26:E2:47:2E:53:B3 CRL Distribution Points: http://e8.c.lencr.org/50.crl Basic Constraints: CA : false Path Length Constraint: UNLIMITED Issuing Certificate URL: http://e8.i.lencr.org/ Key Usage: Digital Signature Extended Key Usage: Server Auth Client Auth DNS Names: dev.zuul.leziedu.com Certificate Signature Algorithm: ECDSA-SHA384 Certificate Signature: 30:65:02:31:00:D3:50:1B:68:68:69:27:DA:36:C4:50: 9A:16:7B:2C:01:D3:DB:B2:99:E5:41:80:CF:12:C4:34: 93:C5:C9:81:BA:E4:D6:B3:F8:BD:D6:C4:77:8A:7D:33: 18:17:A6:9B:0D:02:30:38:38:DB:6B:71:62:20:99:F9: 77:6B:F9:75:15:4B:D5:B8:D0:1A:54:15:DD:B5:26:85: 32:83:6E:D4:3E:71:0D:F9:09:F9:5F:16:66:16:43:15: E9:5C:A7:5F:59:A8:33

Version: v3 Serial Number: 13244083824817073811656494108079419943 Signature Algorithm: SHA256-RSA Issuer: Country: US Organization: DigiCert Inc Organizational Unit: www.digicert.com CommonName: Encryption Everywhere DV TLS CA - G2 Validity: Not Before: 2025-09-25 00:00 UTC Not After : 2026-09-24 23:59 UTC Subject: CommonName: edu.leziedu.com Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits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uthority Key Identifier: 78:DF:91:90:5F:EE:DE:AC:F6:C5:75:EB:D5:4C:55:53:EF:24:4A:B6 Subject Key Identifier: F5:7B:42:B4:62:75:E3:25:65:90:37:49:C1:60:B8:9B:E9:E4:28:95 Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://ocsp.digicert.com Issuing Certificate URL: http://cacerts.digicert.com/EncryptionEverywhereDVTLSCA-G2.crt Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: edu.leziedu.com www.edu.leziedu.com Certificate Signature Algorithm: SHA256-RSA Certificate Signature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

Version: v3 Serial Number: 17136375837079196078578603529250804195 Signature Algorithm: SHA256-RSA Issuer: Country: US Organization: DigiCert Inc Organizational Unit: www.digicert.com CommonName: Encryption Everywhere DV TLS CA - G2 Validity: Not Before: 2025-07-02 00:00 UTC Not After : 2026-07-01 23:59 UTC Subject: CommonName: booking.leziedu.com Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits) : E9:C2:DE:45:CF:EA:1E:91:96:C2:6E:2A:8A:50:C8:9D: C0:67:ED:EF:E9:9A:37:0B:36:51:40:95:8F:34:B9:36: 4D:5F:B5:23:DF:AD:6A:61:EF:45:6D:B3:AD:BA:CD:A4: 40:27:00:32:69:BD:AE:0B:19:CC:5E:73:97:C6:CF:67: 03:B4:F0:2B:E9:DD:62:E7:95:01:81:73:E2:87:93:EB: 2E:91:A2:8A:83:BC:85:DA:8A:9A:DF:C0:EF:57:17:32: 2B:9B:15:49:B4:7B:3E:02:0E:05:2B:5C:4D:27:65:9A: 10:A4:D4:DA:F3:32:CD:AB:27:46:FD:E2:95:A4:4D:46: FD:6F:93:A5:EB:F1:38:62:8D:B4:50:DB:D8:79:D9:A6: A7:D1:B0:C3:36:74:88:D5:F6:0C:54:DF:D8:06:B0:E0: 2B:7A:0A:96:C2:26:BD:1D:15:2B:BC:87:DA:6E:D8:D2: D0:8C:C4:AF:B4:8A:F6:07:DA:36:1A:25:EC:1B:40:31: 60:3D:12:E7:25:5B:37:DD:3C:34:9A:EC:5A:E4:19:A2: 74:3D:19:FE:44:7F:D5:AF:3C:7E:D6:1F:E8:18:6D:EB: 9B:BC:92:EC:09:3A:87:19:F3:0F:E6:24:0B:42:2D:76: 14:E0:89:7B:D9:D3:68:DA:7D:F8:FC:F0:0A:D5:89:21 Authority Key Identifier: 78:DF:91:90:5F:EE:DE:AC:F6:C5:75:EB:D5:4C:55:53:EF:24:4A:B6 Subject Key Identifier: 98:E7:06:85:60:02:1B:14:AA:5C:56:E0:02:F7:6D:5E:63:B8:CC:11 Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://ocsp.digicert.com Issuing Certificate URL: http://cacerts.digicert.com/EncryptionEverywhereDVTLSCA-G2.crt Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: booking.leziedu.com www.booking.leziedu.com Certificate Signature Algorithm: SHA256-RSA Certificate Signature: 1D:4A:62:94:7A:AE:05:FC:29:9C:D5:CA:A8:66:C1:DF: 0F:CF:41:E3:29:8A:B8:D1:B8:08:B7:5F:E9:62:6A:0A: 83:6E:01:57:85:2A:96:AC:88:23:D7:7F:80:FC:13:B8: 47:33:D9:16:BC:39:63:CA:7C:4D:C0:DD:9F:12:51:88: 43:7B:45:76:AA:65:81:17:FB:EC:23:97:1B:78:66:48: 99:49:C2:2F:5F:07:45:47:62:8C:07:DA:E9:CA:27:50: BE:8C:10:0E:F4:B3:10:21:D7:BB:B7:C7:67:0D:43:EF: 60:7C:CC:09:D6:FF:FB:1E:44:75:C3:2E:8A:78:E6:22: F0:E4:17:9A:E9:16:51:82:E4:9F:61:ED:08:51:B7:0F: 9B:95:32:7E:E3:4D:A2:32:B0:A1:6D:76:98:7A:39:11: 2A:17:68:89:38:99:8C:76:D6:E4:D4:F1:29:9C:89:1F: C9:23:35:FE:DB:4D:A2:E4:A6:8B:75:1B:B9:44:7E:A2: EA:2A:A6:09:91:A5:7F:05:95:BE:78:E9:24:C0:BF:A0: AD:48:CD:05:08:76:55:C9:8B:E7:50:B8:DA:FA:4C:07: B8:6C:C6:31:5F:37:88:1A:25:54:3C:49:31:9D:8D:92: 3E:CF:F7:DC:E0:D9:38:F4:4B:F9:55:4B:0F:E1:88:BA

Version: v3 Serial Number: 3957854615882655484943340144493932088 Signature Algorithm: SHA256-RSA Issuer: Country: US Organization: DigiCert Inc Organizational Unit: www.digicert.com CommonName: Encryption Everywhere DV TLS CA - G2 Validity: Not Before: 2025-09-05 00:00 UTC Not After : 2026-09-04 23:59 UTC Subject: CommonName: prd.zuul.leziedu.com Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits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uthority Key Identifier: 78:DF:91:90:5F:EE:DE:AC:F6:C5:75:EB:D5:4C:55:53:EF:24:4A:B6 Subject Key Identifier: 16:12:80:08:3E:D8:1C:4F:12:D5:25:07:B5:62:CF:C6:BA:61:ED:D6 Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://ocsp.digicert.com Issuing Certificate URL: http://cacerts.digicert.com/EncryptionEverywhereDVTLSCA-G2.crt Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: prd.zuul.leziedu.com www.prd.zuul.leziedu.com Certificate Signature Algorithm: SHA256-RSA Certificate Signature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