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

TLSv1.3

mail.server.it · 93.57.10.224:443

Verified

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

Subject
CN=mail.server365.it
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-02T11:56:54+00:00
Expires
2026-12-01T11:56:53+00:00
Days remaining
45
Serial (hex)
064FEAC488FCB1FFE6ECA3A27337E7753058
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.giga.eu, DNS:autoconfig.mp3-converter.net, DNS:autoconfig.server.it, DNS:autoconfig.server365.it, DNS:autodiscover.giga.eu, DNS:autodiscover.mp3-converter.net, DNS:autodiscover.server.it, DNS:autodiscover.server365.it, DNS:mail.server.it, DNS:mail.server365.it

SHA-256 fingerprint

F9:D3:28:B6:FA:F8:C7:D3:64:5F:C4:BA:98:5B:94:82:A4:26:9D:A3:10:0E:CE:6A:B3:4A:06:E8:B9:AF:90:6F
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
3D:13:9D:57:A5:6D:41:BC:29:47:D4:8E:3F:32:E7:1F:F4:88:5F:A8
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:autoconfig.giga.eu, DNS:autoconfig.mp3-converter.net, DNS:autoconfig.server.it, DNS:autoconfig.server365.it, DNS:autodiscover.giga.eu, DNS:autodiscover.mp3-converter.net, DNS:autodiscover.server.it, DNS:autodiscover.server365.it, DNS:mail.server.it, DNS:mail.server365.it
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/89.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86: D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF Timestamp : Sep 2 12:55:26.363 2026 GMT Extensions: 00:00:05:00:3B:8C:4D:ED Signature : ecdsa-with-SHA256 30:44:02:20:51:AC:7A:C6:2C:C5:46:0C:FF:1D:C8:C0: 24:03:25:B2:22:89:CD:D9:5B:11:0F:2F:90:31:D2:98: D8:05:12:DD:02:20:76:9C:0F:C8:BD:95:53:5A:2A:A2: CD:6E:8E:E9:D0:A8:63:9D:6B:AB:B6:32:AF:68:61:8C: EF:F0:AF:24:F1:1F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Sep 2 12:55:27.333 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D8:9A:7D:2D:03:47:24:68:6D:37:8E: 81:9E:2B:2A:19:9E:33:BA:B2:A4:2B:D5:63:15:34:9C: 3F:C7:7E:0F:1C:02:20:43:78:0B:B2:32:57:A5:BB:C0: 23:AB:1B:67:FB:3B:FA:2E:04:A5:0A:86:5A:B7:59:F2: FE:B7:C9:51:40:69:DC
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-16T16:20:28+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
687
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2148
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----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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