zer0.de

Issued by Let's Encrypt Authority X1

About this certificate

This digital certificate with serial number 01:f9:16:d5:c8:87:df:d6:ef:6f:cd:b6:b1:ab:47:03:28:4a was issued on by Let's Encrypt.

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=zer0.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 01:f9:16:d5:c8:87:df:d6:ef:6f:cd:b6:b1:ab:47:03:28:4a
Serial Number (int): 171872948337459057784276266578234633824330
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: 6a:3f:5a:46:9f:45:8e:30:3e:da:9b:d3:85:49:4b:07:1c:04:96:97
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 7b:01:76:9f:de:16:74:14:82:99:69:94:f2:e8:d4:c7:25:b4:18:c4
Fingerprint (sha256): b1:df:79:94:b6:8e:1c:61:8a:98:dc:48:3b:91:36:e1:1b:1d:6c:08:d7:eb:a5:77:b5:a3:e6:f8:9e:89:0e:ba

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

Revocation information

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

Check the revocation status for certificate zer0.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for zer0.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

zer0.de

Other certificates including the domain name zer0.de

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cloud.zer0.de
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cloud.zer0.de
idmdev.marum.de
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groupware.zer0.de
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zer0.de
idmdev.marum.de
groupware.zer0.de
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groupware.zer0.de
nas.zer0.de
zer0.de
nas.zer0.de
zer0.de
zer0.de
zer0.de
cloud.zer0.de
idmdev.marum.de
zer0.de
nas.zer0.de
zer0.de
groupware.zer0.de
www.zer0.de
groupware.zer0.de
groupware.zer0.de
idmdev.marum.de
zer0.de
cloud.zer0.de
zer0.de
zer0.de
zer0.de
groupware.zer0.de
zer0.de
zer0.de
zer0.de
groupware.zer0.de
zer0.de
www.zer0.de
cloud.zer0.de
groupware.zer0.de
zer0.de
imap.zer0.de
zer0.de
zer0.de
zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
zer0.de
zer0.de
cloud.zer0.de
cloud.zer0.de
idmdev.marum.de
zer0.de
zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
cloud.zer0.de
cloud.zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
zer0.de
zer0.de
groupware.zer0.de
idmdev.marum.de
zer0.de
idmdev.marum.de
idmdev.marum.de
groupware.zer0.de
autoconfig.zer0.de
zer0.de
zer0.de
zer0.de
cloud.zer0.de
zer0.de
cloud.zer0.de
idmdev.marum.de
zer0.de
idmdev.marum.de
groupware.zer0.de
autoconfig.zer0.de
zer0.de
groupware.zer0.de
cloud.zer0.de
groupware.zer0.de
zer0.de

Certificate

The complete raw certificate details for zer0.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoONuMdkNunfeIl4i6LV1
o0fIkM9SryUH/LJNlNEx4+5ezs/IvDNMBRpqDxIfagmnONw7gZIJUWbCu8gazEud
aNXNsUt5GQ6GPvZDYpcuZCSdrvHvRwJ5sjDoYOoZe7cddDjKku3jbkIzEoYEGNmd
mVJxbdAsFS1oD8pEvdduUrywSqPWQMmhrlemW1q8JPdGKJbB7eHpdeco4Bg3O6u+
gmOjiMb3UqXhjz7v4IjjD8qgOP8LsrtFDhI4gSAC4F/Bhv+4l6AXnAOs00iQjBAf
m8h0XzqEQ9K4QKLpdtRW/gdAGQOL7IX26XQz4z9nX69H3CMRDE1PQikF2Ydx7hXc
2wIDAQAB
-----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 171872948337459057784276266578234633824330
 . . . . . . . . [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 2016-01-05 17:03:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-04-04 17:03:00 +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 'zer0.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 20310278928429129906810527956570607201053286027190438125431522061513825561318023488113810455153976129452606862099649489371194647660046786047206186978779326391888846941637020233769870328198999739687061685481528028898185929585099212657390006905190713356209600983279437041058675119132424203626028316606704005082879879286987622650086143126831781605411964932202820237163979823385032666945431662386060259292809584428775429433937416918521237987133723050783003669439080555177430646468817306338885973522961758694815382946118694021855308295741308547233138145336911089455419151032109960251772289641685451431482790300230241082587
 . . . . . . . . . . . . . . . . . . . . [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)
							6a3f5a469f458e303eda9bd385494b071c049697
 . . . . . . . . . . . . . . . . [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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zer0.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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