www.contraddizioni.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:4d:6a:c7:8d:59:9b:6b:0b:b7:49:41:01:20:86:bc:fa:3b 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=www.contraddizioni.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:4d:6a:c7:8d:59:9b:6b:0b:b7:49:41:01:20:86:bc:fa:3bSerial Number (int): 287680534349740211305344551448897658878523
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 13:f4:d2:5a:0d:ff:b5:e3:6a:a7:95:d1:94:a4:a2:96:4c:25:33:4b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): f8:25:19:48:a1:e9:40:ff:7e:9b:6f:50:07:7f:60:70:ff:a7:d9:6a
Fingerprint (sha256): b4:36:98:86:fd:ed:6b:58:e9:26:05:6f:6e:de:59:d3:1c:e2:cc:27:70:5a:c4:46:19:23:31:60:d2:0b:7d:78
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.contraddizioni.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.contraddizioni.com
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
www.contraddizioni.com
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Certificate
The complete raw certificate details for www.contraddizioni.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGZDCCBUygAwIBAgISA01qx41Zm2sLt0lBASCGvPo7MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMDIwNDQ3MzlaFw0y MDAzMDEwNDQ3MzlaMCExHzAdBgNVBAMTFnd3dy5jb250cmFkZGl6aW9uaS5jb20w ggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC42mmRtCGw7yifDC0CHgc4 1Ppjgk7tSSiIiqHCbnbU/cPvB35LndVDuR1C7KsQKgQktqInttuMjfWjnSKvIhxu umntazmynAXEbqcmE0cL+/T7o7bZGslcypLnZqhaWGdNp6x5BJwGXuzcyrUBCior leglFAxX5cN9fRRNlgiApqTsednd6INry4EgK+orOgrYsEozjU57Bhy87D+fG2tD zoTOqkBAUC0ZbKAnpZi5/svamJm/fNnFvo2rDTdVeWet4hFybMVtEaMjoX9VpLTE 0ioHloNekH5IEgJcG8RVM7PRc9Y3vJsMF8zExrZA5QCikyGfZ3ygRtCAKx2LPXHy +TBID8Rp9JIo9XqrHUSkzuGMaDzOpWfi/9Y0JB9ePW1Y2JRVHgdWUHjUGslGD4Yn V8Sqcv6Am9z69QzGGdqmFO0oReUs14EjMOhDxjNQwt62Dm3uopma4r3OoWhBAbmX ms3DZfUOD7LXhdyBayahhY8yjWUuxEgZ9D4D7o9GI131vOZ/yrYvnFnBN+gyFVWU p97C/Td73q7ar5LIDmYHeX2E/tcHGHSz55zp0in35RznXd1VUWxXJ9XRDz7dnHQx mCl1ahiEJPxP1DmYpOmiktCu360UnbIwlX8+dui5iKxZn6lJ8CrLBfLkv2jdXutE NYS1V7brPojUm5YDCEQtjQIDAQABo4ICazCCAmcwDgYDVR0PAQH/BAQDAgWgMB0G A1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1Ud DgQWBBQT9NJaDf+142qnldGUpKKWTCUzSzAfBgNVHSMEGDAWgBSoSmpjBH3duubR ObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9v Y3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9j ZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcvMCEGA1UdEQQaMBiCFnd3dy5jb250 cmFkZGl6aW9uaS5jb20wTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMB AQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEE BgorBgEEAdZ5AgQCBIH1BIHyAPAAdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0 prCoqo6ycwAAAW7FJmuOAAAEAwBHMEUCIQDY0R3HYBdh2vrhLjNoVkV2rOF6vkF+ mrTNf6S7lpRzNQIgRn1A6zG2TgtfX6KfNPrs3ZLSeeMueIT7a8x+ud8u8pAAdgAH t1wb5X1o//Gwxh0jFce65ld8V5S3au68YToaadOiHAAAAW7FJmu0AAAEAwBHMEUC ID87IKtTyA24GWnHVGvBE6CYaaKs8brmyOSciirJUwcRAiEAvkkD4j7UryTqVu1e 3Mu/m1eMjiwEJBYaVjXAuPfr01wwDQYJKoZIhvcNAQELBQADggEBAD1JXgdWCP02 ejSUq4SQwgjzj+XU/JsriNEHZGy6kkXGRgq+xhDK+EfAdx05GvBsg/pY/xR3wQb3 KAokgSQ0VvvWhokD8tl1iNk3LfYuSLNo3u4m2IaL+5764Xk/I0CiaME2lwfEX9W7 jdhGwQ2kplwT2oZ+5ENRG7qwIV+We+ENo/Ov4t3rHqYJ4waPqsuyiMO7pwW41CsJ qMfp3cplAWHWAbqdoyRTM/N2V1qlt72l4qGt23xZr/wLKzEAC/tAAMguVkwXPlPC b3iAsJMXI0GoD6f4sDbgWoHYT6zjI3J3EexqFuISvdA/JfMnzStdr/27Tj696h6X rv7TGcZNBDk= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuNppkbQhsO8onwwtAh4H ONT6Y4JO7UkoiIqhwm521P3D7wd+S53VQ7kdQuyrECoEJLaiJ7bbjI31o50iryIc brpp7Ws5spwFxG6nJhNHC/v0+6O22RrJXMqS52aoWlhnTaeseQScBl7s3Mq1AQoq K5XoJRQMV+XDfX0UTZYIgKak7HnZ3eiDa8uBICvqKzoK2LBKM41OewYcvOw/nxtr Q86EzqpAQFAtGWygJ6WYuf7L2piZv3zZxb6Nqw03VXlnreIRcmzFbRGjI6F/VaS0 xNIqB5aDXpB+SBICXBvEVTOz0XPWN7ybDBfMxMa2QOUAopMhn2d8oEbQgCsdiz1x 8vkwSA/EafSSKPV6qx1EpM7hjGg8zqVn4v/WNCQfXj1tWNiUVR4HVlB41BrJRg+G J1fEqnL+gJvc+vUMxhnaphTtKEXlLNeBIzDoQ8YzUMLetg5t7qKZmuK9zqFoQQG5 l5rNw2X1Dg+y14XcgWsmoYWPMo1lLsRIGfQ+A+6PRiNd9bzmf8q2L5xZwTfoMhVV lKfewv03e96u2q+SyA5mB3l9hP7XBxh0s+ec6dIp9+Uc513dVVFsVyfV0Q8+3Zx0 MZgpdWoYhCT8T9Q5mKTpopLQrt+tFJ2yMJV/PnbouYisWZ+pSfAqywXy5L9o3V7r RDWEtVe26z6I1JuWAwhELY0CAwEAAQ== -----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 287680534349740211305344551448897658878523 . . . . . . . . [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 2019-12-02 04:47:39 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-01 04:47:39 +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 'www.contraddizioni.com' . . . . . . . . [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 754135152142479134540355172055685824859516083400716587491573090131068892236114565601493579113670919813044887682386986557358814301909134064760628377869560637921764269697943971797618245846206820604414917494823084618997331411116909258891161359121033836507772365539567129897703280439721570731868994589168813934168409437977033206728863558365030155630219279777010960968125466611813171950996469647158592532812355454785484317335765204412007214765793932254472116800489546035634026830867921223602360126629346159491618023836920526372177397432568390185528317893940786230738212554585734140592275366166704283359103528649160928872526862596371766032812303146286732793155568586724853140564745397486167373957908582112235049201462669760313806316580456850854877323127629979431722613540103397892687474534176379376769138276104313737164988022169067473526102436187262243114446094864788330446649656698385558375749593955615875639642091488336828802580043204407277055310410744074697827395106388327995683561068777692368919881124691605106487185415483738366677582338238496303903851813260052510350828960316611393361570003377386189604079435217100087001354426372076460221790820942924104615398342204490027563345102691236328879712449513207796816065814054142361787968909 . . . . . . . . . . . . . . . . . . . . [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) 13f4d25a0dffb5e36aa795d194a4a2964c25334b . . . . . . . . . . . . . . . . [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 (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.contraddizioni.com' . . . . . . . . . . . . . . . . [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) 00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ec5266b8e0000040300473045022100d8d11dc7601761dafae12e3368564576ace17abe417e9ab4cd7fa4bb969473350220467d40eb31b64e0b5f5fa29f34faecdd92d279e32e7884fb6bcc7eb9df2ef29000760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ec5266bb4000004030047304502203f3b20ab53c80db81969c7546bc113a09869a2acf1bae6c8e49c8a2ac9530711022100be4903e23ed4af24ea56ed5edccbbf9b578c8e2c0424161a5635c0b8f7ebd35c . . . . [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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