4z.ro
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:22:13:ce:af:de:7a:5f:4c:cc:de:c5:f4:8f:a5:33:e5:00 was issued on by Let's Encrypt.
With 5 subject alternative names this certificate can be used to secure multiple fqdn's. 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=4z.ro
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:22:13:ce:af:de:7a:5f:4c:cc:de:c5:f4:8f:a5:33:e5:00Serial Number (int): 272932786782713624372742200395833409791232
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 74:f0:e0:c6:a7:6f:ee:7a:c1:f5:d9:af:19:9d:db:2b:e3:75:5f:11
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): f4:f7:1a:9e:d7:6c:db:f6:ea:e4:be:32:44:4b:60:93:67:0d:44:22
Fingerprint (sha256): 9f:d6:46:47:ee:3e:21:08:5b:68:85:c8:b3:c3:b6:43:44:5c:aa:1b:da:a7:9a:aa:15:82:c6:73:dd:c5:39:61
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate 4z.ro
5
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for 4z.ro
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
4z.ro
client.4z.ro
ftp.4z.ro
mail.4z.ro
www.4z.ro
client.4z.ro
ftp.4z.ro
mail.4z.ro
www.4z.ro
Other certificates including the domain name 4z.ro
(limited to 100 certificates)
Certificate
The complete raw certificate details for 4z.ro in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGcTCCBVmgAwIBAgISAyITzq/eel9MzN7F9I+lM+UAMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMjcyMTExNDdaFw0y MDA0MjYyMTExNDdaMBAxDjAMBgNVBAMTBTR6LnJvMIICIjANBgkqhkiG9w0BAQEF AAOCAg8AMIICCgKCAgEAnHYO50ThuNvidJ+QHgDVMn8zf9Dj0WVUPSga+w/n6aLj EhIusLb/4bTwFQnSAOQsIWyY3iDp+WjJd4LGf8A4NoHcu9keIwf3Py2C6y1zZ1ig tVkNzaZjDWZMZKPe0vMQ0ibtrNbYXWaHwwnjMHi+tmtuxgoKlXG6kdPKYWkCy+b0 KO/mHjQXNLleUNofZaUnbOTysNFiu/mG5KUGK51KexdjTBEv+t6+AQwwRCeis/vJ 2FWEhhft6ZKc20GC5fuvdIA1rzjTHu6unofM422UkAPE1k9yStFAxhuyGF+N59WM 8+F5A7bVjxeJC0i197JM975B5hi+HYUb6DsBizGJJfyY9raFzpH0VPXI7XQCd+m0 h+6elHRaJiqB0tFSyP0qJLtajhjp17kT2++bMWb/6FoXaUIo5Fx4kdAfxPMcgSbA 7xTlx4yAXE9tUCXvNEzGzHdE8xTnvHWhkMiW5ym5Z1eIJE7/lEVUGuIiufWlcbse WCsTfDEiL5NFfQKK2PoQuqmSzSg87dSwz+6ijU4ueL2agSAZ86m3vTxiQVXZALOH STy6w5U2jx6bdljyxp/gq544GaFzmkaH8pW7V9txBWshkw1n1nqXqAl8mB2kVSjD Td1Z9XJiL23ETKiCz0QvI9iKqErogtieyFcp875UsTYbI+dQ5urRBjNRrWlyh9sC AwEAAaOCAokwggKFMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcD AQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUdPDgxqdv7nrB9dmv GZ3bK+N1XxEwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYB BQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnLzBABgNVHREEOTA3ggU0ei5yb4IMY2xpZW50LjR6LnJvgglmdHAu NHoucm+CCm1haWwuNHoucm+CCXd3dy40ei5ybzBMBgNVHSAERTBDMAgGBmeBDAEC ATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNl bmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1AF6nc/nfVsDntTZI fdBJ4DJ6kZoMhKESEoQYdZaBcUVYAAABb+kPieQAAAQDAEYwRAIgcrvqILvD1eP9 66XPLUhPs758xAq0dsGCte8m6pa2N1oCIEUjvSijQD8xFuDyLFJ3AChvx2ETO+eT ido36FF/yhP/AHYAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklTLe+LkF4AAAFv 6Q+J0QAABAMARzBFAiAIBbU8KYjZtOHg/lfhr4h/QdxqntoG3VDX1rSVQwPeqwIh AKjueDCJk+DDxlhqn0gwgSHEXI4S5B/oAuAlRnAQndhSMA0GCSqGSIb3DQEBCwUA A4IBAQCQoCJHXA/xiBFUX6GH3f07POazWxdedantN84Nkewem/qSjvOGnZEDfX0y wT5e+qnJBwUJ0sr4EJt08mmAvoo8ZgHV2daqax3hWcxAqQBG8srXq0J+kzKBLt8G frKmt/rC544BKbRX2G5X7Aj37wmB2BW2GTZSqQm3OMBhfi+u2uMlPEHy/f4WEzIm Z1N8iBbZbqeJXsPhSXB8+TFYt5EHz0ekQdR9bOAd12syMjybcY6g627EXdvq2uUV rqPZEySlrbKvs+3zFm3du1gL8ZqbD5USfq7qiyOrawa7rqqhNg7SA95u98K5n4oi ioYxNOwv5XL04C4+omh6OraTR0qm -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAnHYO50ThuNvidJ+QHgDV Mn8zf9Dj0WVUPSga+w/n6aLjEhIusLb/4bTwFQnSAOQsIWyY3iDp+WjJd4LGf8A4 NoHcu9keIwf3Py2C6y1zZ1igtVkNzaZjDWZMZKPe0vMQ0ibtrNbYXWaHwwnjMHi+ tmtuxgoKlXG6kdPKYWkCy+b0KO/mHjQXNLleUNofZaUnbOTysNFiu/mG5KUGK51K exdjTBEv+t6+AQwwRCeis/vJ2FWEhhft6ZKc20GC5fuvdIA1rzjTHu6unofM422U kAPE1k9yStFAxhuyGF+N59WM8+F5A7bVjxeJC0i197JM975B5hi+HYUb6DsBizGJ JfyY9raFzpH0VPXI7XQCd+m0h+6elHRaJiqB0tFSyP0qJLtajhjp17kT2++bMWb/ 6FoXaUIo5Fx4kdAfxPMcgSbA7xTlx4yAXE9tUCXvNEzGzHdE8xTnvHWhkMiW5ym5 Z1eIJE7/lEVUGuIiufWlcbseWCsTfDEiL5NFfQKK2PoQuqmSzSg87dSwz+6ijU4u eL2agSAZ86m3vTxiQVXZALOHSTy6w5U2jx6bdljyxp/gq544GaFzmkaH8pW7V9tx BWshkw1n1nqXqAl8mB2kVSjDTd1Z9XJiL23ETKiCz0QvI9iKqErogtieyFcp875U sTYbI+dQ5urRBjNRrWlyh9sCAwEAAQ== -----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 272932786782713624372742200395833409791232 . . . . . . . . [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 2020-01-27 21:11:47 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-26 21:11:47 +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 '4z.ro' . . . . . . . . [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 638305863291452130010633901897392779441907710474965831280063825708911574873016832709877561827140315848103605013795859533598729798710912544833335088559377293399193339162009542274095634590643086687460840790625331544857954174324132063652920393418861809049429158332127520101345451618299823327899108411776559224301693707562370776540517622543136442814767081933039248628984807580071905454604033113736661451939261920352110853840444196138491618296890570557876155844162392621426619853814376317414434009318688676927226463098649002129249178282817080348557985075017294329580876360702390892452531291360135113341789067561595729657463919539150989792383914430252193506559174538346990597929749378838244883397843526504539218719797251301967947394061236023744827120441791771971335760561179270913601780618518859986175109409367637639872510696708542388808906563018199417347051650176822081562615728296833770085787849518521052948760758725007232105836488527046901523493519579877267762822532657815411236269286995644068434718624555827700591669042196098300609754489429083177207021927845514927282711363636550699782890988467354794705970468237745162015331491472517234913724133228614665216601224401358418799553610676325167829738745841998701564506412958602085182638043 . . . . . . . . . . . . . . . . . . . . [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) 74f0e0c6a76fee7ac1f5d9af199ddb2be3755f11 . . . . . . . . . . . . . . . . [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 (57 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '4z.ro' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'client.4z.ro' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ftp.4z.ro' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.4z.ro' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.4z.ro' . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fe90f89e40000040300463044022072bbea20bbc3d5e3fdeba5cf2d484fb3be7cc40ab476c182b5ef26ea96b6375a02204523bd28a3403f3116e0f22c527700286fc761133be79389da37e8517fca13ff007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fe90f89d1000004030047304502200805b53c2988d9b4e1e0fe57e1af887f41dc6a9eda06dd50d7d6b4954303deab022100a8ee78308993e0c3c6586a9f48308121c45c8e12e41fe802e0254670109dd852 . . . . [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) 0090a022475c0ff18811545fa187ddfd3b3ce6b35b175e75a9ed37ce0d91ec1e9bfa928ef3869d91037d7d32c13e5efaa9c9070509d2caf8109b74f26980be8a3c6601d5d9d6aa6b1de159cc40a90046f2cad7ab427e9332812edf067eb2a6b7fac2e78e0129b457d86e57ec08f7ef0981d815b6193652a909b738c0617e2faedae3253c41f2fdfe1613322667537c8816d96ea7895ec3e149707cf93158b79107cf47a441d47d6ce01dd76b32323c9b718ea0eb6ec45ddbeadae515aea3d91324a5adb2afb3edf3166dddbb580bf19a9b0f95127eaeea8b23ab6b06bbaeaaa1360ed203de6ef7c2b99f8a228a863134ec2fe572f4e02e3ea2687a3ab693474aa6