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

registro.it · 192.12.192.40:443

Verified

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

Subject
CN=www.nic.it
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-14T14:58:53+00:00
Expires
2027-01-12T14:58:52+00:00
Days remaining
67
Serial (hex)
06AF538E09732487FE36FAFEF921D454FE69
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:dotitalianregistry.it, DNS:dotitregistry.it, DNS:nic.it, DNS:registro.it, DNS:registrodominitalia.it, DNS:registroitaliadomini.it, DNS:web-r4.nic.it, DNS:www.dotitalianregistry.it, DNS:www.dotitregistry.it, DNS:www.nic.it, DNS:www.registro.it, DNS:www.registrodominitalia.it, DNS:www.registroitaliadomini.it

SHA-256 fingerprint

E0:E5:95:23:60:55:36:28:94:9E:CF:2B:9F:B4:04:A3:D8:9E:69:7D:C4:24:8A:8D:EF:A6:31:A7:49:FF:40:25
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
A1:45:2F:94:40:E9:19:B1:52:71:F9:2B:DF:CF:BD:27:F3:33:F4:09
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:dotitalianregistry.it, DNS:dotitregistry.it, DNS:nic.it, DNS:registro.it, DNS:registrodominitalia.it, DNS:registroitaliadomini.it, DNS:web-r4.nic.it, DNS:www.dotitalianregistry.it, DNS:www.dotitregistry.it, DNS:www.nic.it, DNS:www.registro.it, DNS:www.registrodominitalia.it, DNS:www.registroitaliadomini.it
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/106.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Oct 14 15:57:24.029 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AC:9D:34:E5:04:C2:A5:9F:6C:65:46: 03:B1:FB:0D:3D:A7:5A:9D:8B:11:93:38:2D:55:3B:F8: 10:16:90:AA:A2:02:21:00:D6:88:23:7C:E3:02:D3:D3: BF:A5:17:69:CD:B4:80:61:CE:3A:4E:A4:72:EC:35:D1: 0F:B4:9C:DC:7F:DA:C3:15 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:81:00:18:73:4E:17:6E:1D:47:E0:95:40:F3:81:BA: 54:66:97:CD:63:A8:43:50:71:6E:B8:09:4E:DA:F1:0D Timestamp : Oct 14 15:57:24.654 2026 GMT Extensions: 00:00:05:00:23:B7:CF:B4 Signature : ecdsa-with-SHA256 30:45:02:20:24:0D:87:97:41:3D:63:BC:C9:87:18:76: 57:3C:A5:3F:04:A6:49:55:A5:3A:CC:8C:AE:38:54:27: B9:C0:32:72:02:21:00:CA:55:27:72:A3:CA:5C:DE:D7: DE:D8:FF:8F:BB:E3:12:50:94:53:52:30:FB:92:60:E2: 2E:45:33:A2:3E:E7:AE
-----BEGIN CERTIFICATE-----
MIIF7zCCBNegAwIBAgISBq9TjglzJIf+Nvr++SHUVP5pMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNZUjEwHhcNMjYxMDE0MTQ1ODUzWhcNMjcwMTEyMTQ1ODUyWjAVMRMwEQYDVQQD
Ewp3d3cubmljLml0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsS+0
axveR3seULG6XJxXUh0fSJWj8Hiv7pVcfxfUBjhjp73/PzQjLUbvqhhfisgl/Klc
Ih/QaDBk37NzRiFCX0rScyDawrS03G9fD5nEM8B5jwr8L6YKHrOlFQ15NrkeViL/
35/fJwzMl/ZVAeocCoKDttu/RyJhI+8r0/yGe8qQDKVCUlh/q2EQdxnqQTrfqaKb
i1SbA2z/SL1lDtUMIyKNcGL7fi08W0zkdK1fdgy2+wuAHKB6Z9dhuI+ZpdA+9qsl
qZUc/isVDEcz+014xz/Jpwo9dLU3CbMLP5nQwbuMSoM/LIzwvXMBXg7YLeJQcHhp
rYHntL4koq2+33fGLwIDAQABo4IDGTCCAxUwDgYDVR0PAQH/BAQDAgWgMBMGA1Ud
JQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFKFFL5RA6Rmx
UnH5K9/PvSfzM/QJMB8GA1UdIwQYMBaAFB8vNb5GFILNQLGueSxVePr31Gj7MDMG
CCsGAQUFBwEBBCcwJTAjBggrBgEFBQcwAoYXaHR0cDovL3lyMS5pLmxlbmNyLm9y
Zy8wggESBgNVHREEggEJMIIBBYIVZG90aXRhbGlhbnJlZ2lzdHJ5Lml0ghBkb3Rp
dHJlZ2lzdHJ5Lml0ggZuaWMuaXSCC3JlZ2lzdHJvLml0ghZyZWdpc3Ryb2RvbWlu
aXRhbGlhLml0ghdyZWdpc3Ryb2l0YWxpYWRvbWluaS5pdIINd2ViLXI0Lm5pYy5p
dIIZd3d3LmRvdGl0YWxpYW5yZWdpc3RyeS5pdIIUd3d3LmRvdGl0cmVnaXN0cnku
aXSCCnd3dy5uaWMuaXSCD3d3dy5yZWdpc3Ryby5pdIIad3d3LnJlZ2lzdHJvZG9t
aW5pdGFsaWEuaXSCG3d3dy5yZWdpc3Ryb2l0YWxpYWRvbWluaS5pdDATBgNVHSAE
DDAKMAgGBmeBDAECATAvBgNVHR8EKDAmMCSgIqAghh5odHRwOi8veXIxLmMubGVu
Y3Iub3JnLzEwNi5jcmwwggENBgorBgEEAdZ5AgQCBIH+BIH7APkAdwBgTJqven93
XwHUBvySDciZ6wscffjJUhv6+hd3O5eLyQAAAaE7Ifa9AAAEAwBIMEYCIQCsnTTl
BMKln2xlRgOx+w09p1qdixGTOC1VO/gQFpCqogIhANaII3zjAtPTv6UXac20gGHO
Ok6kcuw10Q+0nNx/2sMVAH4AooEAGHNOF24dR+CVQPOBulRml81jqENQcW64CU7a
8Q0AAAGhOyH5LgAIAAAFACO3z7QEAwBHMEUCICQNh5dBPWO8yYcYdlc8pT8EpklV
pTrMjK44VCe5wDJyAiEAylUncqPKXN7X3tj/j7vjElCUU1Iw+5Jg4i5FM6I+564w
DQYJKoZIhvcNAQELBQADggEBAEp4SAUNWxG2rMYby41ZRzUC5aDdewBTyFohcCIT
eyWlrlsoSWTlZRZ8DGvE1h+U09s4bw4DLATi6ldt/N0ThnacQicpJf2rq2naINkI
RiK2at1WbFWHHOSyuflMIw9bt2UjiHuvLGxD7BgYFv1dTR5BbksXJI7q5HVKvRYi
u7ARooU2MddY/UfgwyfdGFn62g473Je/pV7wza/b924ade9tn+pXwqCKHpwktUsd
Fna5Cy+XY++k+fMypsoJXQAA7Tg3+njHUwmh51mN2HVTySzU73K0gc4i7ys204bC
8DdYPXBIUQbjTVTgUWsulEM6eQyGH+lsZ4z8I5QXeWmkrVs=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T03:49:51+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
666
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
2127
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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