cowmail.de

Issued by Let's Encrypt Authority X1

About this certificate


This digital certificate with serial number 01:24:a8:d5:43:a1:13:25:7a:5d:59:7c:2b:b7:c5:55:74:7f was issued on by Let's Encrypt .

With 9 subject alternative names this certificate can be used to secure multiple fqdn's. While the 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.

cowmail.de

Let's Encrypt

Organization: Let's Encrypt

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 01:24:a8:d5:43:a1:13:25:7a:5d:59:7c:2b:b7:c5:55:74:7f
Serial Number (int): 99586868775119868248989216192319668450431
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: dc:02:32:8a:3d:78:fd:bf:59:dc:9a:ad:86:fe:7e:5b:e1:71:40:14
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b0:0c:dd:9b:80:67:ea:12:6f:d1:e3:e5:c0:71:64:b4:cd:fe:b5:0d
Fingerprint (sha256): 3a:c2:79:b9:c8:91:06:e6:31:77:42:ef:9f:1c:ad:a1:6b:b4:15:60:31:42:b0:91:53:83:85:81:21:98:a4:b9

Issuing Certificate URL: http://cert.int-x1.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x1.letsencrypt.org/

Check the revocation status for the current certificate on cowmail.de
9
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


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

8 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

www.cowmail.de
calendar.cowmail.de
dav.cowmail.de
cowmail.de
xmpp.cowmail.de
srv1.cowmail.de
smtp.cowmail.de
imap.cowmail.de
pop3.cowmail.de

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIGhTCCBW2gAwIBAgISASSo1UOhEyV6XVl8K7fFVXR/MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMTAeFw0xNjAxMDEwMzQyMDBaFw0x NjAzMzEwMzQyMDBaMBUxEzARBgNVBAMTCmNvd21haWwuZGUwggIiMA0GCSqGSIb3 DQEBAQUAA4ICDwAwggIKAoICAQC/UXfT7rzeLntQAVtox4EOCgZhYRteyjghxNLL YwUEMoZZ/3lw6Jlg1g+I+pUsVNVZ3LQms2rm1soU7ODEislYuZVI3P7CzdyuDDHZ goPK7ziUqiXsvWvhkaxLURzu/ASVzA5Jbjd8k0rfm0xSRCNv+xof3TP32r4Gdtoh yHMmQaGOl2p+nR8ie4ANXgNezgdkSaSf4v67yRjvdug695c3YNGH3360k1HFY16J 1IOFqopKpnMtIePxbHua2qhWoCMNQ9YAZG8/CH3JAP6i0rKOOTqY/sScX7SlZ8RZ nJboS4x15EWuy+u1Dkn/reBkhdLJYHschvlrXSiyoi0pHccBSqaaDAarlln/73oZ hvBueeCoMLbXMY4av5s1U2pe1aVyD0FtGtAVuVIq/jvE5G+qLAASo4bMfkXBqkyu GWYmyTZuPxhdQNBduy0OSUqA818wjYH0HDT6rdT0qtHDZPwPMCCVGSsrea0kj+Ry EeZnL9R62ZHs3pujJ9xr8l0uBHz+8vgjhvKM1GZRopdB5o+zRzKBNZ1891H4lSPf RQ9bUcKDp23d3mx2c/p2ccMBlac9T5Jdi3Eaxbwy36LEp+jKXwoWzXE9idTyC6p6 I3HFkrDwy3BSlANqmC4bBk0IA0dy92cuRu+/Z0o0eMmgIdnnhSBlvF/GI18bkQwS Zqaw0wIDAQABo4ICmDCCApQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTcAjKKPXj9 v1ncmq2G/n5b4XFAFDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBw BggrBgEFBQcBAQRkMGIwLwYIKwYBBQUHMAGGI2h0dHA6Ly9vY3NwLmludC14MS5s ZXRzZW5jcnlwdC5vcmcvMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDEu bGV0c2VuY3J5cHQub3JnLzCBoQYDVR0RBIGZMIGWgg53d3cuY293bWFpbC5kZYIT Y2FsZW5kYXIuY293bWFpbC5kZYIOZGF2LmNvd21haWwuZGWCCmNvd21haWwuZGWC D3htcHAuY293bWFpbC5kZYIPc3J2MS5jb3dtYWlsLmRlgg9zbXRwLmNvd21haWwu ZGWCD2ltYXAuY293bWFpbC5kZYIPcG9wMy5jb3dtYWlsLmRlMIH+BgNVHSAEgfYw gfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLfEwEBATCB1jAmBggrBgEFBQcCARYaaHR0 cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasGCCsGAQUFBwICMIGeDIGbVGhpcyBD ZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxpZWQgdXBvbiBieSBSZWx5aW5nIFBh cnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5jZSB3aXRoIHRoZSBDZXJ0aWZpY2F0 ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9sZXRzZW5jcnlwdC5vcmcvcmVwb3Np dG9yeS8wDQYJKoZIhvcNAQELBQADggEBAI5OjIQgtOT0AGQ6aZ8Cyb9lqp/2TruQ V8yEVxGI3Dw2I9lpxQKUk8sToIcXE9ceUaOaOstyH12ha2WiSJQOScUZ3RCV83kw tP/VnvcRQFeMUhTFGZQf/Q4ioxap8W5hwJbz9RgQ1Kdmh6ihrhu+P9Qpmkbtq0Tz BJuFJqchyHbmBVgaJ26/+cZ3tyQOHo87XOMCfvRp4Nog7jAF8Y4UDaEN7mbxl0Em BK9HdWf8RXcq0W8vR/y4KzdA7RcTNuBCAmGVyOZSHW5+qJQoLXfmmguRxajL0GjN 1AyLAeZivI4WGpxbresGFC3eQzQosUg6WdTAXpM3OXgN4DQQL738Grw= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAv1F30+683i57UAFbaMeB DgoGYWEbXso4IcTSy2MFBDKGWf95cOiZYNYPiPqVLFTVWdy0JrNq5tbKFOzgxIrJ WLmVSNz+ws3crgwx2YKDyu84lKol7L1r4ZGsS1Ec7vwElcwOSW43fJNK35tMUkQj b/saH90z99q+BnbaIchzJkGhjpdqfp0fInuADV4DXs4HZEmkn+L+u8kY73boOveX N2DRh99+tJNRxWNeidSDhaqKSqZzLSHj8Wx7mtqoVqAjDUPWAGRvPwh9yQD+otKy jjk6mP7EnF+0pWfEWZyW6EuMdeRFrsvrtQ5J/63gZIXSyWB7HIb5a10osqItKR3H AUqmmgwGq5ZZ/+96GYbwbnngqDC21zGOGr+bNVNqXtWlcg9BbRrQFblSKv47xORv qiwAEqOGzH5FwapMrhlmJsk2bj8YXUDQXbstDklKgPNfMI2B9Bw0+q3U9KrRw2T8 DzAglRkrK3mtJI/kchHmZy/UetmR7N6boyfca/JdLgR8/vL4I4byjNRmUaKXQeaP s0cygTWdfPdR+JUj30UPW1HCg6dt3d5sdnP6dnHDAZWnPU+SXYtxGsW8Mt+ixKfo yl8KFs1xPYnU8guqeiNxxZKw8MtwUpQDapguGwZNCANHcvdnLkbvv2dKNHjJoCHZ 54UgZbxfxiNfG5EMEmamsNMCAwEAAQ== -----END PUBLIC KEY-----

ASN1 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 99586868775119868248989216192319668450431 . . . . . . . . [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 X1' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-01-01 03:42:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-03-31 03:42:00 +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 'cowmail.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 780510301208446152289304056133183044863100121741908605068189246045300896846512811815871133017976887497915109704067183096199427940254139521869746390020788718045055740554752896283529004038623705010308601032218028096012158709345329317129751102639956919873388525236410232445392561454823672695387935034189105449846453239590083312096220745605781145308347007582101605969666073637925234975327016067930371781434004871499154371108046742825463883934090899423887254879828513733968572352490447138925994406876200221944439871002053135368290719274001681158923974624244969797425580743872031591243204813147759965367859671730596494282598329429429313412760356692174585898108914168777904776716623392503762747270562455879878108123492487669979869382513717717022100129874687660056651788070847428981642577469545476704902210419489153974065545549419437274351275639994971923690037046028771525843778173359374187825904669797775268207102246053191235895506822745854946123889873675634642064398782519248354632245182018773884173891611557023132757274465130678305780266563576379052477901852097753466567452780498402754095519386402716618707384168921537480166603190591177383868791709916468349755529850166957112592019115967415136019305607198614560748305704858532456385917139 . . . . . . . . . . . . . . . . . . . . [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) dc02328a3d78fdbf59dc9aad86fe7e5be1714014 . . . . . . . . . . . . . . . . [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 (100 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-x1.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-x1.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 (153 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'calendar.cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dav.cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'xmpp.cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'srv1.cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'smtp.cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'imap.cowmail.de' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pop3.cowmail.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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