preview.operaduomo.firenze.it
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:af:c9:12:59:ca:75:f9:84:fd:e2:34:8f:0d:23:7d:b0:15 was issued on by Let's Encrypt.
This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=preview.operaduomo.firenze.it
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:af:c9:12:59:ca:75:f9:84:fd:e2:34:8f:0d:23:7d:b0:15Serial Number (int): 321153542116116247712907180716793880490005
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 67:7a:97:f7:6f:e8:1e:bb:f4:d6:5f:04:f6:6d:57:79:86:2e:2c:54
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): c2:2c:16:99:00:63:ae:c7:06:c3:b6:f2:e9:ff:52:2f:4c:ef:dc:4c
Fingerprint (sha256): 7e:59:a9:fa:f5:c3:49:61:08:35:ee:22:82:de:76:39:09:4c:e7:19:cf:2a:d2:d1:e6:d0:83:13:fd:71:29:cf
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate preview.operaduomo.firenze.it
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for preview.operaduomo.firenze.it
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
preview.operaduomo.firenze.it
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Certificate
The complete raw certificate details for preview.operaduomo.firenze.it in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGcjCCBVqgAwIBAgISA6/JElnKdfmE/eI0jw0jfbAVMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MjQwNzQzNDRaFw0x OTA4MjIwNzQzNDRaMCgxJjAkBgNVBAMTHXByZXZpZXcub3BlcmFkdW9tby5maXJl bnplLml0MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAmhkzCrFtcpMB PySWDx/GMqruv8MWH+CebJagVOpjjrZu7QQnEjPVVuOjMqwf9nLMbTu/Ii14GDUF G1YYwOCniPpPJj3UEmDNo9COz3XM4bfKOUz8DIVLTX0EvOShYCqPtRLfV+Tp1L7h 4RDDTPatyv63pj7Jvbf8u8xisCgosm8e+l9zNp68wYyskb7QL6sYJOqqMjNMaA40 E87fGRhzgiIBzMVAHatQrQoAzT03u382m9KP/VnCSG4+QL4B4/D4wDPOpr6DB8M1 Mc8DK8nhWdLj1AfSInkYueyR4b7Sq37J4/25OtNuyaZzb9MSFqs3fzu8fnuUwA3+ ZatJYvZndK1WnxAiuzrzL0mMzJV8Sw5+KzcqdF+9QN84Xfb9/jwNI8Y3/BvPcrYJ eUPPsNpP8OzbqQ4LxVc29RqfGFx6iCv2SsqoFUPAqBsspRWR0oYUNsriyvP74gQ6 k9E/Jw3MtnPQacSakRF+pVPQOe8OIcV7XQQKB3nxLvb3cy7TTdrg5FvdR+PKe2GW SIMglqNuGjJFLIRLiArmh8/RLH0aMvD0jyTO6RwxqMv3i5rAs1wTcMb7ppDYZyf/ mWraJuRGSqPMmUdBlK55gZkZ+x43mGaVnQ2gZlhGOgbiHAVN/c6KJ4p9GS4pjrCl ZekI+Fsbbk3ewqpM0CCtO+/4hM8fibkCAwEAAaOCAnIwggJuMA4GA1UdDwEB/wQE AwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIw ADAdBgNVHQ4EFgQUZ3qX92/oHrv01l8E9m1XeYYuLFQwHwYDVR0jBBgwFoAUqEpq YwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJo dHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNo dHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAoBgNVHREEITAfgh1w cmV2aWV3Lm9wZXJhZHVvbW8uZmlyZW56ZS5pdDBMBgNVHSAERTBDMAgGBmeBDAEC ATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNl bmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2AHR+2oMxrTMQkSGc ziVPQnDCv/1eQiAIxjc1eeYQe8xWAAABaukCpZkAAAQDAEcwRQIhAKlYrIcp3ZUA Ye0RebqaDdAcZRPsceJoiqQsO2fzkxLVAiAKnsNzfPVj8d9C1xOq9ZNhqbiW61cv YL1ZRkNo5ewQRwB2AGPy283oO8wszwtyhCdXazOkjWF3j711pjixx2hUS9iNAAAB aukCo5MAAAQDAEcwRQIhAOQAsm8K0G60vq0rdmT0WwdXaQWrYx7495OWuEFu5kQV AiByw/tnKGkqxawGKaGuUZGLjIiiqd6a/2ppHUqS4kejSDANBgkqhkiG9w0BAQsF AAOCAQEAmaW7ow45BG0ZXnpgzk+PU+fWMuP5JLjBCXAFO67NHZTFX6XmV87g1JbQ NPCmy53/s9cLRIyMbQEearaGLf628ugICO9SE5aBQhVnjqz9JKxZbj00BU+Pl3xE b0OCfO/2K4bvRd2a2oVr1a2e0n6p6Hc08eJK+s9Jibu7Nzu4ufr6sK7y/HjIbRzU L7PNJ1rQq0qZu2FrB5BJmgNSjGKeFzp1NZPV4/CwGrVi0MpWn7tvcQh89j7Mbwaj A9G8Lz2bi/ocvpyl4ctB2+Z/dMFV941P/HiWb1fYdC6xF4V+9wQVoidNmIDk5dAu ztca7smmGvQAj4vD9k4cSHg3jTbJfw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAmhkzCrFtcpMBPySWDx/G Mqruv8MWH+CebJagVOpjjrZu7QQnEjPVVuOjMqwf9nLMbTu/Ii14GDUFG1YYwOCn iPpPJj3UEmDNo9COz3XM4bfKOUz8DIVLTX0EvOShYCqPtRLfV+Tp1L7h4RDDTPat yv63pj7Jvbf8u8xisCgosm8e+l9zNp68wYyskb7QL6sYJOqqMjNMaA40E87fGRhz giIBzMVAHatQrQoAzT03u382m9KP/VnCSG4+QL4B4/D4wDPOpr6DB8M1Mc8DK8nh WdLj1AfSInkYueyR4b7Sq37J4/25OtNuyaZzb9MSFqs3fzu8fnuUwA3+ZatJYvZn dK1WnxAiuzrzL0mMzJV8Sw5+KzcqdF+9QN84Xfb9/jwNI8Y3/BvPcrYJeUPPsNpP 8OzbqQ4LxVc29RqfGFx6iCv2SsqoFUPAqBsspRWR0oYUNsriyvP74gQ6k9E/Jw3M tnPQacSakRF+pVPQOe8OIcV7XQQKB3nxLvb3cy7TTdrg5FvdR+PKe2GWSIMglqNu GjJFLIRLiArmh8/RLH0aMvD0jyTO6RwxqMv3i5rAs1wTcMb7ppDYZyf/mWraJuRG SqPMmUdBlK55gZkZ+x43mGaVnQ2gZlhGOgbiHAVN/c6KJ4p9GS4pjrClZekI+Fsb bk3ewqpM0CCtO+/4hM8fibkCAwEAAQ== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 321153542116116247712907180716793880490005 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-24 07:43:44 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-22 07:43:44 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'preview.operaduomo.firenze.it' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 628666766588149389215412092444897128550251739001904524800597435000846899522003887051800613515126862455404159587460741830037421642754825117220634869378924020667006023417150651862721220094128633041843620252012539771380577136541033307753252674414163290121434320751070553751661441235697218996848624437858767620869067944779049936166597867290689688578766789844736121610727214137492240964661568386987188307553073038688150271617970438953789089028694141008212646978406541617520780274446392738009443268680705103855530191938456116753504903384034763487992883949116103203051964383520022250119049786421121973489216943459897897452064638302191363859172832194602111961587824394288018569654791081308748307538437021881707444536614926044781409748553369400675253803018901493426483788345933389455635459244082573876149872712020571285303482038967723459518115963099413946597459680802086802685972307776531456789645910779198137071118611226542808551404170377539238099881501067700823528338945507660486520056269067252546627084348358934495496596168542984931756701889863024248350679586342905704863141675269835170455165022754349001072187309722234554349055933230590164974674814969801030928302357369210863710894900088522451682202083306586307834682305803449207242066361 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 677a97f76fe81ebbf4d65f04f66d5779862e2c54 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (33 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'preview.operaduomo.firenze.it' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016ae902a5990000040300473045022100a958ac8729dd950061ed1179ba9a0dd01c6513ec71e2688aa42c3b67f39312d502200a9ec3737cf563f1df42d713aaf59361a9b896eb572f60bd59464368e5ec104700760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016ae902a3930000040300473045022100e400b26f0ad06eb4bead2b7664f45b07576905ab631ef8f79396b8416ee64415022072c3fb6728692ac5ac0629a1ae51918b8c88a2a9de9aff6a691d4a92e247a348 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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