mail.4qt.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:ce:23:e7:f0:92:61:8f:db:80:ac:99:4a:ab:6e:56:a7:dd was issued on by Let's Encrypt.
With 11 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=mail.4qt.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:ce:23:e7:f0:92:61:8f:db:80:ac:99:4a:ab:6e:56:a7:ddSerial Number (int): 331482752660796667576460941873773347776477
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ec:00:9c:e5:7c:ea:8b:1a:5b:94:09:fd:b0:eb:52:5c:83:cb:bb:eb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): ff:d8:a6:ce:a2:17:ed:74:98:2f:76:f1:d3:b2:55:a5:80:e5:d9:7e
Fingerprint (sha256): d4:d2:67:f6:14:b8:dc:18:c2:c1:5b:4c:e5:ec:ed:91:55:be:92:ff:83:4b:77:43:a6:d7:70:8e:ae:a2:2b:91
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate mail.4qt.de
11
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mail.4qt.de
Public Key Algorithm
RSA
Key Size
2048
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
4qt.de
mail.4qt.de
mail.nn-dev.org
mail.pathmann.de
mail.pathmann.net
nn-dev.org
pathmann.de
pathmann.net
www.nn-dev.org
www.pathmann.de
www.pathmann.net
mail.4qt.de
mail.nn-dev.org
mail.pathmann.de
mail.pathmann.net
nn-dev.org
pathmann.de
pathmann.net
www.nn-dev.org
www.pathmann.de
www.pathmann.net
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repo.4qt.de
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repo.4qt.de
mail.4qt.de
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build.4qt.de
pytson.4qt.de
pytson.4qt.de
pytson.4qt.de
mail.4qt.de
Certificate
The complete raw certificate details for mail.4qt.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF6DCCBNCgAwIBAgISA84j5/CSYY/bgKyZSqtuVqfdMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MjcyMzI4MzhaFw0x OTEwMjUyMzI4MzhaMBYxFDASBgNVBAMTC21haWwuNHF0LmRlMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyi1Ywu5PUzcWk2QRzyIa4MeJIh6NA3ZPeWpq 7uJmwYgvyOS37PCFdsRSeQI3on1yGyb2fBqH+VB4shEMmhxSTIEHeLQPdHDUJXin +1kNnSyQhZ50+zd7gdftqG+C1b+ghx8JE30UhrG4x2AjfBuLqrucwBHZ9Ej0RUlF QUHBOJkYWa5Ea4UHmrS6U7WPyZfnFAOhKq5sSNCnHSUSUhYx7+gSnv2kDv8pbPnD a+qt+9Jn26Tgz8Q1+WQ7jX70CSoDHdZkMZO1pKLkXSWcPF0jovlWeQxFvaTCSXtd zk/QNr6Q9AhMmZODxjqUeEs7AUAjWj0zHcFWTB/fssJqMT8htwIDAQABo4IC+jCC AvYwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcD AjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTsAJzlfOqLGluUCf2w61Jcg8u76zAf BgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEw LgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcw LwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcv MIGwBgNVHREEgagwgaWCBjRxdC5kZYILbWFpbC40cXQuZGWCD21haWwubm4tZGV2 Lm9yZ4IQbWFpbC5wYXRobWFubi5kZYIRbWFpbC5wYXRobWFubi5uZXSCCm5uLWRl di5vcmeCC3BhdGhtYW5uLmRlggxwYXRobWFubi5uZXSCDnd3dy5ubi1kZXYub3Jn gg93d3cucGF0aG1hbm4uZGWCEHd3dy5wYXRobWFubi5uZXQwTAYDVR0gBEUwQzAI BgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nw cy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdQB0ftqD Ma0zEJEhnM4lT0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWw1+rV9AAAEAwBGMEQCIAKn xIewWXnJjarPH6W120rf2NS6w4cP4yZve1fzEAO/AiBFx1jERsP4eKFeYxDM3d6P WXf1DVdGplRLXRCo4LINdAB2AGPy283oO8wszwtyhCdXazOkjWF3j711pjixx2hU S9iNAAABbDX6tgsAAAQDAEcwRQIgfBBG0RBIylm+t02EsBOvVWir8txBaG1voibf /uHXCvQCIQD227tpODiVZYmHIh2lujVsL1wSSGw17Qz4ElUzkMaEIjANBgkqhkiG 9w0BAQsFAAOCAQEARrE1gfG0sfqe1TVJsiNg4qy6EITt3jEAwZiY5Pk3ogXukx7P h3EPXEomtFRsfUTXu2SXVBJMEoiHJeXlbP2lFH0c9+kBPhmQl0LVbVmBEwAnW2i5 D5JQCcWQMxjYecI1GuaR9RhU62y6QlHyBgctSjkkUzOfpWVqT9W85J43ewn5vk9S nlaRqwP3ZO4ka/OdkZSO02+Mib13ea201rJMOF3fdy4Eed7UvguyKOLdvTH9iXA0 Pv91JmIcL9gTeMmxbHyRcoXz4WNwpIP04/Ds4BBK/qkFZe73f0OblLTGPJZy0m6n CbvXZ40mFDLFlEvAzO45qikoxg6XLlcLz8HZZg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyi1Ywu5PUzcWk2QRzyIa 4MeJIh6NA3ZPeWpq7uJmwYgvyOS37PCFdsRSeQI3on1yGyb2fBqH+VB4shEMmhxS TIEHeLQPdHDUJXin+1kNnSyQhZ50+zd7gdftqG+C1b+ghx8JE30UhrG4x2AjfBuL qrucwBHZ9Ej0RUlFQUHBOJkYWa5Ea4UHmrS6U7WPyZfnFAOhKq5sSNCnHSUSUhYx 7+gSnv2kDv8pbPnDa+qt+9Jn26Tgz8Q1+WQ7jX70CSoDHdZkMZO1pKLkXSWcPF0j ovlWeQxFvaTCSXtdzk/QNr6Q9AhMmZODxjqUeEs7AUAjWj0zHcFWTB/fssJqMT8h twIDAQAB -----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 331482752660796667576460941873773347776477 . . . . . . . . [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 2019-07-27 23:28:38 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-25 23:28:38 +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 'mail.4qt.de' . . . . . . . . [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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 25522498906367327354566753455960132738264968969036926815345455930688964382600754852613159213994491016172317049798062854103727192171672643948726690696201561802066817616200752628604891215344830444883102984892124373905282587190703754301085789287278826724898196424592540065187550804525484242759566251746680445724597131802677091519144547838747680835819820479900005493226180243276805207041720919763537456624298656644664376209983438377591649132567744283503631273351904745779341854691899904984892274402420320928692410726322024744893261438105549282336746304372019881921347991765865132547901420958280632614139539045692886426039 . . . . . . . . . . . . . . . . . . . . [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) ec009ce57cea8b1a5b9409fdb0eb525c83cbbbeb . . . . . . . . . . . . . . . . [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 (168 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '4qt.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.4qt.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.nn-dev.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.pathmann.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.pathmann.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nn-dev.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pathmann.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pathmann.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.nn-dev.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.pathmann.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.pathmann.net' . . . . . . . . . . . . . . . . [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) 00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c35fab57d0000040300463044022002a7c487b05979c98daacf1fa5b5db4adfd8d4bac3870fe3266f7b57f31003bf022045c758c446c3f878a15e6310ccddde8f5977f50d5746a6544b5d10a8e0b20d7400760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c35fab60b000004030047304502207c1046d11048ca59beb74d84b013af5568abf2dc41686d6fa226dffee1d70af4022100f6dbbb69383895658987221da5ba356c2f5c12486c35ed0cf812553390c68422 . . . . [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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