schwerpunkt-literaturvermittlung.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:d9:a7:f8:92:a7:aa:d9:75:f4:63:ce:2f:3c:c1:9f:0a:b4 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=schwerpunkt-literaturvermittlung.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:d9:a7:f8:92:a7:aa:d9:75:f4:63:ce:2f:3c:c1:9f:0a:b4Serial Number (int): 335401403156557164718074386760409374722740
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 36:c9:2c:45:a5:08:03:b0:8d:21:92:73:ce:1d:12:d5:dc:ee:ee:60
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): c4:b3:61:35:b0:af:8b:36:a2:cf:09:4f:b7:ca:fe:67:59:4a:0f:2b
Fingerprint (sha256): f4:a3:00:f7:b6:f8:c1:79:0c:1d:fa:08:f3:06:b5:84:b6:b7:04:ce:ea:07:18:0c:b8:bd:d1:70:ec:24:e4:ca
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate schwerpunkt-literaturvermittlung.de
5
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for schwerpunkt-literaturvermittlung.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
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
autodiscover.schwerpunkt-literaturvermittlung.de
mail.schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
webdisk.schwerpunkt-literaturvermittlung.de
www.schwerpunkt-literaturvermittlung.de
mail.schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
webdisk.schwerpunkt-literaturvermittlung.de
www.schwerpunkt-literaturvermittlung.de
Other certificates including the domain name schwerpunkt-literaturvermittlung.de
(limited to 100 certificates)
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
www.schwerpunkt-literaturvermittlung.de
www.fruehbucher.biz
fluegel-falter.de
onlinekredit-01.com
finanzenforumgeldanlage.de
lotharsgeldblog.t6a.de
schwerpunkt-literaturvermittlung.de
www.schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
www.oese.t6a.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
www.schwerpunkt-literaturvermittlung.de
www.fruehbucher.biz
fluegel-falter.de
onlinekredit-01.com
finanzenforumgeldanlage.de
lotharsgeldblog.t6a.de
schwerpunkt-literaturvermittlung.de
www.schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
www.oese.t6a.de
schwerpunkt-literaturvermittlung.de
schwerpunkt-literaturvermittlung.de
Certificate
The complete raw certificate details for schwerpunkt-literaturvermittlung.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF3jCCBMagAwIBAgISA9mn+JKnqtl19GPOLzzBnwq0MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODAxMjEwMDM3MjVaFw0x ODA0MjEwMDM3MjVaMC4xLDAqBgNVBAMTI3NjaHdlcnB1bmt0LWxpdGVyYXR1cnZl cm1pdHRsdW5nLmRlMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA551B tyRohesUc25We9gyo8BqKMrHHWe8rMVdBEzX8Ezv9GkoxWt5LCKiexPC2PlQzRCl jadbhVZ8hRpS1UO5X0yadLsHVmsW9yOQrTy3qmBwtzTUODerJEM7sUdfkBiTzPP/ D3yqUetvHdX+n7gOqNSRNL9wbuBmtr5yFbyxpGI5jMsOMObiM589x5OVomphhoIP mpQl6ISEOjTOJyZGLXiNatGtQENg3xncfDAgmrlwAzNOu4ALsLHVYf2Gh0nEXcD5 4AaneOcZk24vSNDKmUDZZJKjiveJwBDPYmF5CeE+sQbGvVZ31JRT0wYxcR5aLOR9 Jyo+4hXxgrDts7AAcwIDAQABo4IC2DCCAtQwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW BBQ2ySxFpQgDsI0hknPOHRLV3O7uYDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObem RWXv86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3Nw LmludC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0 LmludC14My5sZXRzZW5jcnlwdC5vcmcvMIHiBgNVHREEgdowgdeCMGF1dG9kaXNj b3Zlci5zY2h3ZXJwdW5rdC1saXRlcmF0dXJ2ZXJtaXR0bHVuZy5kZYIobWFpbC5z Y2h3ZXJwdW5rdC1saXRlcmF0dXJ2ZXJtaXR0bHVuZy5kZYIjc2Nod2VycHVua3Qt bGl0ZXJhdHVydmVybWl0dGx1bmcuZGWCK3dlYmRpc2suc2Nod2VycHVua3QtbGl0 ZXJhdHVydmVybWl0dGx1bmcuZGWCJ3d3dy5zY2h3ZXJwdW5rdC1saXRlcmF0dXJ2 ZXJtaXR0bHVuZy5kZTCB/gYDVR0gBIH2MIHzMAgGBmeBDAECATCB5gYLKwYBBAGC 3xMBAQEwgdYwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3Jn MIGrBggrBgEFBQcCAjCBngyBm1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9ubHkgYmUg cmVsaWVkIHVwb24gYnkgUmVseWluZyBQYXJ0aWVzIGFuZCBvbmx5IGluIGFjY29y ZGFuY2Ugd2l0aCB0aGUgQ2VydGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0IGh0dHBz Oi8vbGV0c2VuY3J5cHQub3JnL3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUAA4IB AQB92SuUVvxQ9RBQe/k7clYhNKhIA612T7ztCZsdmE3BIRWCiusgeCFQStou8pby wFHDvZnC/jLiD7nmtgesFirHvNCFnBBB+n6W34/t7Ol82Xt9pS8CkhRZy+gx0dTM 1AdRXlvNUREvaiNlL6mJtWpcthsCHeL4NYN/M5ptBdG+OQqaia9Rqgh/9CaKl9Il DEmbKA/5fC0B2symUdLyHj8jaSczyAKf5UrfnximU6hBvUWJTxBV231ENcY0TNtX ifAMVr6SAaSLu4PtE3P+Ql+eBOx8URX0V87osomtlbdxSZNeEdaxtXkUqa+FfJ2E jvQnzjeZg1sZkR+LkrWecvQP -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA551BtyRohesUc25We9gy o8BqKMrHHWe8rMVdBEzX8Ezv9GkoxWt5LCKiexPC2PlQzRCljadbhVZ8hRpS1UO5 X0yadLsHVmsW9yOQrTy3qmBwtzTUODerJEM7sUdfkBiTzPP/D3yqUetvHdX+n7gO qNSRNL9wbuBmtr5yFbyxpGI5jMsOMObiM589x5OVomphhoIPmpQl6ISEOjTOJyZG LXiNatGtQENg3xncfDAgmrlwAzNOu4ALsLHVYf2Gh0nEXcD54AaneOcZk24vSNDK mUDZZJKjiveJwBDPYmF5CeE+sQbGvVZ31JRT0wYxcR5aLOR9Jyo+4hXxgrDts7AA cwIDAQAB -----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 335401403156557164718074386760409374722740 . . . . . . . . [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 2018-01-21 00:37:25 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-21 00:37:25 +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 'schwerpunkt-literaturvermittlung.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 29238594616498732146043967905225913943810518450020868766939307753397771214289692635415640174815947388712817706782943246338828188757196871382037223376644299438569181440770385819021967967012450345459692729533696009974079820712662191547960260406128784938615779463762601111924227239796788064813390586595540877882681118479612128970169509165366507594215651615451549883573787362264012248407385732243050924219335286117325169569072736707756429990871706687933836056207105647016518748897947081153028418891153653201995193540007541152342546029233315176625439848282047859951188767769451278371475944206673769728045714828974145667187 . . . . . . . . . . . . . . . . . . . . [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) 36c92c45a50803b08d219273ce1d12d5dceeee60 . . . . . . . . . . . . . . . . [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 (218 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.schwerpunkt-literaturvermittlung.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.schwerpunkt-literaturvermittlung.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'schwerpunkt-literaturvermittlung.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.schwerpunkt-literaturvermittlung.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.schwerpunkt-literaturvermittlung.de' . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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