DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.2

cu.mi.it · 212.45.143.91:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
C=IT ST=Milano O=C.U. SRL CN=*.cu.mi.it
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA OV R36
Valid from
2026-07-25T00:00:00+00:00
Expires
2027-02-08T23:59:59+00:00
Days remaining
121
Serial (hex)
D530CE393DB9436235A46DC874B2101C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.cu.mi.it, DNS:cu.mi.it

SHA-256 fingerprint

38:41:BB:D6:99:C2:F8:E9:8D:49:0D:B2:2B:27:99:57:C7:D9:2C:65:FF:08:E7:9F:E3:97:D3:01:69:33:AF:D4
Certificate extensions & PEM
authorityKeyIdentifier
E3:66:74:BB:70:68:8D:2C:5D:4E:0E:A6:4A:8F:9B:37:22:9C:82:92
subjectKeyIdentifier
67:79:44:28:2B:9D:8B:AA:01:48:5B:92:37:DC:37:8F:60:15:09:60
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.1.3.4 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.cu.mi.it, DNS:cu.mi.it
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Jul 25 11:01:19.114 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AE:9C:79:58:8A:CC:7F:86:0B:3D:27: 92:F6:D4:91:48:E9:2F:5F:B5:C9:4C:A1:D4:0D:23:13: 69:1B:10:8F:6E:02:21:00:E2:9A:A4:5E:69:F2:32:15: 74:C2:C8:DF:7E:C8:96:70:A9:C5:46:4F:B0:F7:B5:C6: 53:76:8C:09:A9:AC:2A:C8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Jul 25 11:01:19.256 2026 GMT Extensions: 00:00:05:00:06:EF:F8:62 Signature : ecdsa-with-SHA256 30:46:02:21:00:93:CF:6C:31:6A:8D:3B:03:7F:D6:35: CB:B2:D6:2E:90:F7:74:6D:01:26:8E:55:C8:14:24:CF: 5A:AF:17:55:05:02:21:00:CC:94:5E:B2:C3:34:0A:14: 31:E1:98:F2:AA:DC:05:E5:AB:2D:72:10:C1:39:6F:37: 81:6B:9B:8E:2F:8B:A6:29 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Jul 25 11:01:19.431 2026 GMT Extensions: 00:00:05:00:00:52:ED:4F Signature : ecdsa-with-SHA256 30:45:02:21:00:CB:7B:7B:56:9B:C8:4D:22:40:3D:05: 6F:8C:E6:30:85:A9:9D:EE:82:76:59:F6:35:B9:09:F9: 75:12:55:39:06:02:20:74:07:86:7D:8C:D5:66:87:29: 89:ED:76:A9:10:4B:A5:6F:97:38:DA:75:FA:CA:1F:D7: 28:08:AC:4F:06:5C:47
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-10T13:02:20+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA OV R36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3450
Serial (hex)
2C1A3C76E943DDDDFF191B31890AED71
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

65:42:D1:76:BE:D5:0F:19:3C:0C:E2:97:AE:44:EC:D8:A0:A8:6B:EC:2E:DE:68:27:69:34:40:59:B4:E7:85:30
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
E3:66:74:BB:70:68:8D:2C:5D:4E:0E:A6:4A:8F:9B:37:22:9C:82:92
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4118
Serial (hex)
D27FBBC1DE359E5216AD6149586099C4
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

92:F3:51:BF:3D:54:16:4D:FA:8D:D8:F9:E1:13:9D:31:50:34:97:86:48:5D:2B:9E:EC:D0:0E:29:71:C1:E6:C5
Certificate extensions & PEM
authorityKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
subjectKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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