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

mail3.virtualsolution.net · 83.103.59.30:443

Verified

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

Subject
CN=mail3.virtualsolution.net
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-05T10:17:43+00:00
Expires
2026-12-04T10:17:42+00:00
Days remaining
64
Serial (hex)
062BAFF394F68BB9181B26CC087627441E61
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.placci.com, DNS:autoconfig.preventivo.it, DNS:autoconfig.secure-scan.net, DNS:autoconfig.server-dedicato.com, DNS:autoconfig.virtualsolution.net, DNS:autodiscover.placci.com, DNS:autodiscover.preventivo.it, DNS:autodiscover.secure-scan.net, DNS:autodiscover.server-dedicato.com, DNS:autodiscover.virtualsolution.net, DNS:mail3.virtualsolution.net

SHA-256 fingerprint

A6:48:E6:3A:1B:A4:72:20:CF:57:0C:9F:75:A8:87:9C:7F:E4:F4:95:F5:92:33:A9:E8:98:23:72:EF:1F:F3:17
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
B2:05:02:79:2D:93:5A:D3:34:D9:A4:89:BB:EF:41:19:27:08:04:8A
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:autoconfig.placci.com, DNS:autoconfig.preventivo.it, DNS:autoconfig.secure-scan.net, DNS:autoconfig.server-dedicato.com, DNS:autoconfig.virtualsolution.net, DNS:autodiscover.placci.com, DNS:autodiscover.preventivo.it, DNS:autodiscover.secure-scan.net, DNS:autodiscover.server-dedicato.com, DNS:autodiscover.virtualsolution.net, DNS:mail3.virtualsolution.net
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/98.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0: D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F Timestamp : Sep 5 11:16:13.552 2026 GMT Extensions: 00:00:05:00:25:8C:F3:AE Signature : ecdsa-with-SHA256 30:45:02:20:45:C6:D4:3F:CB:F6:DE:0D:A4:F5:D6:EB: 97:85:EE:6A:7D:89:45:E4:E0:2F:33:8B:83:EC:98:0C: 03:FE:A6:1A:02:21:00:A2:75:91:EF:A0:4B:78:E4:72: E5:6E:6C:21:36:1E:45:E9:6E:7B:42:81:0C:4D:59:A8: 2C:9C:08:35:2D:9A:48 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Sep 5 11:16:13.344 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:77:A6:0F:4B:BF:0D:A9:6E:28:A1:2A:3E: 0D:18:ED:17:02:8A:9A:A1:5D:8E:03:10:D0:1D:7B:CD: 54:5B:01:87:02:21:00:F0:4A:FB:E2:BA:C3:ED:62:05: 41:A8:4B:46:9D:87:5F:EF:05:F1:E3:3F:AF:F7:E4:39: 41:E8:15:89:30:C4:FE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-30T21:24:56+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
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
703
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
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-----
MIIE2jCCAsKgAwIBAgIQTr0klH4k05SALYSlL9WzGTANBgkqhkiG9w0BAQsFADAu
MQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQMA4GA1UEAxMHUm9vdCBZUjAe
Fw0yNTA5MDMwMDAwMDBaFw0yODA5MDIyMzU5NTlaMDMxCzAJBgNVBAYTAlVTMRYw
FAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQDEwNZUjIwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQDZ0LxwBppqh84luqMerV/eeL/fXQ7mLQQv1Lnp
WKZbyvGpx6wh6AfnslAnF6ewTkcHA+gSOoBvm3Dfm06AuGiF+KRut4fAcowqnAQQ
CW98+QPP/eOv/wug7Iyk4NkOxf2I6g2f55T6nJoOTLFcukeRq80JGQEYan+dPFr9
OGUgQK2hGKgNkW87pappsOAuUJcroYhRt5uUis4qaZireiseu32gzDJNBAiKtsvd
6HX4v25bpkRNcS/B/Gtc9kVbUpD+2PLPxdei3Tim55k4tfAEXwD2qyiPTxrTNq6l
N+AMr5g2c1dNqkOTwjxeV6L5lpP1rGiYvLnRaPlOqyZRPW+5AgMBAAGjge4wgesw
DgYDVR0PAQH/BAQDAgGGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMBIGA1UdEwEB/wQI
MAYBAf8CAQAwHQYDVR0OBBYEFEAVLSZ57TIgnt+ach3WMh+BDIEMMB8GA1UdIwQY
MBaAFN7nW2DQIm1AKH0/DQH+pLVStFGUMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEF
BQcwAoYWaHR0cDovL3lyLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAEC
ATAnBgNVHR8EIDAeMBygGqAYhhZodHRwOi8veXIuYy5sZW5jci5vcmcvMA0GCSqG
SIb3DQEBCwUAA4ICAQB0ZUQWZ9/Yn9COEpo+JfecMnB0h0vwDm/M66IqXqw3LoaL
mx9lZvRTeDIS67PUeI3yCA2W6PKRD0/FE/G57lOmS+Xy5AaaL00ICGOqjNcCaMWW
8o8nevHOd4i4lqgtznE/28QwlcdJyF8yBiWHpnyjhEpmNWJURgOCOg2xpwRMBCsj
MScqYPtOhBeuYQvSwAEeTML2Ukh6uGuX4E14q65Ja8cdjF5bAldnP1eE4FBaAwsZ
G2fOqqrKV03Y85Nw2btedP1AtliQuJZs/Jo/gXxXdc7LrH3McgnpnbTiAncX7yES
hP6kzQejllqMCIt52HOjxDGWafS7Xw+DKwqmH+Eqy8dcbOuag/1AYlQoKNVK3F5q
Hh6tEDiMqQcLIibGKteE6iHo4A/bIScbzrhXUYuism42ZYzmc48FMVIH3qy4L84E
TdAH2gtxw0PAhvRVXp8HP7wfngpzsN/8xOTpeRSbM4+Qbc56G6+Bifmv6sk1ieQb
NA3wJdl4DDUuQSV8hBgx6zoI1ZSGORprDFux7c6rhc77QZMSRrEgomBeklervEve
86ylWmZ3WWHV6RLMi8xNvjd71r4EPIGgY7BZU/VPBkq+uA7Gb6mbJnFgV43uh3xy
LRFgxIAphIukwTGSMZZR+AI+Qnp0BYTWovHXozOf3H8r6hozEoT02JHn0AeTfA==
-----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
2164
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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