4z.ro
Issued by R3
About this certificate
This digital certificate with serial number 04:88:05:93:00:51:2e:c4:af:f5:1d:96:65:b2:4b:2c:f8:a6 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): 04:88:05:93:00:51:2e:c4:af:f5:1d:96:65:b2:4b:2c:f8:a6Serial Number (int): 394734955042337702071044014128206363556006
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 80:85:cf:39:85:9b:af:29:b2:5a:ce:a0:f5:11:8b:9f:e2:cf:b8:70
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 43:42:fc:5b:28:83:54:42:5a:a1:60:0c:e5:b0:38:fa:b1:b2:10:e4
Fingerprint (sha256): 62:3d:2c:d1:5c:93:60:4c:2f:da:5c:b2:66:81:be:b3:0d:11:46:f1:5d:89:d1:9d:98:6e:4d:a8:e7:ac:a9:c8
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.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----- MIIGQDCCBSigAwIBAgISBIgFkwBRLsSv9R2WZbJLLPimMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzAzMjkyMDEyMjlaFw0yMzA2MjcyMDEyMjhaMBAxDjAMBgNVBAMT BTR6LnJvMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuVvXpvKBYsh1 zTo2s+m+3GkUYsYRGD+Oo/NP3VSOhlRd4QyLaD17XKBm6/o6V+WABIsu/ZiEZWlK RpdwLbpkjAC5A3WVWbgBM5WO9hJ0ZA3VHBmqrTWjmCHi7/DtbbR4DJugb60GTBAX UuKP23POAtXHXNYZBLg+yI11QRKfsNGuvgYo79kP522K+mkUMidR5hpGUigWlehS pHavkv2kj4Vcu088VnBzHlGwS76fxMu0VtCjo13qQjO3zlPi9/UNi+7qATpmx7BB qLCzLm6zokayCxrpFx7yBa193wxodr9zEjQSL48QGfgKsX9qV6AWxmU8BO1jOjOS x7mkOZAcfwMHYGY80tlZOKGYskN1yEf17x58obXnEkdQx0mxhwZYzTghnZrbvcvF WbwJLHMmRuWxzwemrhfID7g1HIasFnknXn3iViaByS7Htxi47oaIr0acf2Pjzy0Q RuVvfVyvPVFv/lfGlTPC+qB4jvOsYJsw72DAWM0Siu59CLfFzKfu2n7bMTpu6tNi cYqGelyA8KYSyHvuOGxctzkST/EpSw45sMQqb5gE3dN2PrNUU3SLPXMnNkp3w+xT LQwRiNjdCKQJsuC1mWtKR68XGxP/zU0wYl72vbQIfFap+aEzC8gAYQytqR0XboP6 ylP9pIY9aWdAoxvpJWrM9xtD6ed+wBECAwEAAaOCAnAwggJsMA4GA1UdDwEB/wQE AwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIw ADAdBgNVHQ4EFgQUgIXPOYWbrymyWs6g9RGLn+LPuHAwHwYDVR0jBBgwFoAUFC6z F7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVo dHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxl bmNyLm9yZy8wQAYDVR0RBDkwN4IFNHoucm+CDGNsaWVudC40ei5yb4IJZnRwLjR6 LnJvggptYWlsLjR6LnJvggl3d3cuNHoucm8wTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdQC3Pvsk35xNunXyOcW6 WPRsXfxCz3qfNcSeHQmBJe20mQAAAYcvNwzrAAAEAwBGMEQCIHv3mFyKVhE+6h/l 85U7QvTyiLlfZmWKEbtiUeJ/+Y4eAiAnFjbvxaVyY/tY43MBWpU9ttCY6fChlTrw wkTgKloM/QB3AHoyjFTYty22IOo44FIe6YQWcDIThU070ivBOlejUutSAAABhy83 DPsAAAQDAEgwRgIhALmSOPVxgoTulrQFJ9xMuS4K/Q0ffc7g2KP8zKyM+EMOAiEA vUfbLzLyNCXiN9ajgQDwkiCxOzbjRjCAzSYL6TB998EwDQYJKoZIhvcNAQELBQAD ggEBAIpH+pU0gpdWDn78gsz+0SKJRkesJXM+R7OCoeOsTP1RLvYKSZHIYWreBaxO y2wX9EQ0+goYS3CrnH7K2tJTs/+vVF7iUjcSHeKBtHZ/b9irEoCjpwB1tFCMEZIU /0+q03vGqziVzHQdUJAden/ABqHYWNXlEx0dn0KUZ+HRMbtcjzyF0CRVsJCDUtHC IOjqJyfOD+tUIKzRRuDhPRF+yjn6UInPk+JmXrR8/Sr1JYQ5Ntp8T4NXdAzJv5fr UzkHxJR8GQM+w9TSuXHfECVO2aqnF2mfYN/QAplKBS6ACurQxbONhskvMtZaybrl 0hr3+2wrr7RrsMSqA3tzAMqCt9s= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuVvXpvKBYsh1zTo2s+m+ 3GkUYsYRGD+Oo/NP3VSOhlRd4QyLaD17XKBm6/o6V+WABIsu/ZiEZWlKRpdwLbpk jAC5A3WVWbgBM5WO9hJ0ZA3VHBmqrTWjmCHi7/DtbbR4DJugb60GTBAXUuKP23PO AtXHXNYZBLg+yI11QRKfsNGuvgYo79kP522K+mkUMidR5hpGUigWlehSpHavkv2k j4Vcu088VnBzHlGwS76fxMu0VtCjo13qQjO3zlPi9/UNi+7qATpmx7BBqLCzLm6z okayCxrpFx7yBa193wxodr9zEjQSL48QGfgKsX9qV6AWxmU8BO1jOjOSx7mkOZAc fwMHYGY80tlZOKGYskN1yEf17x58obXnEkdQx0mxhwZYzTghnZrbvcvFWbwJLHMm RuWxzwemrhfID7g1HIasFnknXn3iViaByS7Htxi47oaIr0acf2Pjzy0QRuVvfVyv PVFv/lfGlTPC+qB4jvOsYJsw72DAWM0Siu59CLfFzKfu2n7bMTpu6tNicYqGelyA 8KYSyHvuOGxctzkST/EpSw45sMQqb5gE3dN2PrNUU3SLPXMnNkp3w+xTLQwRiNjd CKQJsuC1mWtKR68XGxP/zU0wYl72vbQIfFap+aEzC8gAYQytqR0XboP6ylP9pIY9 aWdAoxvpJWrM9xtD6ed+wBECAwEAAQ== -----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 394734955042337702071044014128206363556006 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-03-29 20:12:29 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-27 20:12:28 +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 756197762998968355322426697771765889436387682181401661116885020839907820718281441446270434678522388460879408711347826686579153142398255811868854022188699202174366880052838571962389197580570695302654165727090695428854131353539706774464426373723055910225601691710217683932129294469456566611661784082647523151598494800522023439246477784574321494270929343402870556428631904219503671696584715539909660829172099814659340206840937211455635132941393970813524100847028518962105206161734273250273883061650063656385571930090642969545318589781249359188824486322514017782258945989656832260761486946807084070926711000807930573620187110494414220974778057510293560574269694272553065696169207459530371459501770842546480100953179906680338740932240484229596397370580870941901492740500117093823681928762116181383881672791233281804960111532937241068372837141340067966608097124746411366949787008956270892336982217334975745826928608280476844171423258816165306049531638767237486543311449581606298279132368682519296930110546318285292035822849558100734158155220373085028367974260348908137384425963625218958137686165881491073143758337699162737751585939011340524702225650655101267781386835789363384509101394905861098205327646118639702626326680841436947759939601 . . . . . . . . . . . . . . . . . . . . [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) 8085cf39859baf29b25acea0f5118b9fe2cfb870 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001872f370ceb000004030046304402207bf7985c8a56113eea1fe5f3953b42f4f288b95f66658a11bb6251e27ff98e1e0220271636efc5a57263fb58e373015a953db6d098e9f0a1953af0c244e02a5a0cfd0077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001872f370cfb0000040300483046022100b99238f5718284ee96b40527dc4cb92e0afd0d1f7dcee0d8a3fcccac8cf8430e022100bd47db2f32f23425e237d6a38100f09220b13b36e3463080cd260be9307df7c1 . . . . [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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