groupware.zer0.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:30:bd:50:71:b4:5a:a1:6a:e4:0b:3a:30:c6:18:dd:ee:51 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=groupware.zer0.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:30:bd:50:71:b4:5a:a1:6a:e4:0b:3a:30:c6:18:dd:ee:51
Serial Number (int): 277922053188639221330227513168480463351377
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b3:73:fd:ba:0b:53:76:a0:c5:4d:bf:3e:36:56:a5:04:5c:de:df:93
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 47:cc:59:5d:c5:3c:e9:49:e8:2f:bb:01:09:78:f5:6b:c0:07:55:e2
Fingerprint (sha256): cc:a0:1e:3c:79:38:4d:54:7a:21:2a:1a:1e:23:3e:58:f6:4e:20:50:d1:35:ad:4f:9b:5b:40:00:29:35:9a:89

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate groupware.zer0.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for groupware.zer0.de

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

groupware.zer0.de

Other certificates including the domain name zer0.de

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 277922053188639221330227513168480463351377
 . . . . . . . . [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 2017-11-11 03:20:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-02-09 03:20:10 +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 'groupware.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 874904239084262862065531684479235634263140494742857682506480370298792190871093295739567233013550174620330033463782579212015380906907037572297624478458687813396294401524454536524889813780122509673257482440712560780613856264113569800411793483207587896605454135209892587623226413519164521863326734563217202769267611032633822241505580017665172075310499570786795087521268521369876704797501123458174358601448115752671445834444839843357550313058953056482482321770675697587222591889384121695684349991813450882209790505990683157793112833195297666834418228692821428839905629541117793481586177081444600894662186283128614281021289531954437763830311560237882832082926403190671754051682744209378839599218766576469472574891376133931037767237467810629904316335874743166059875122911481871129484089728409387524695969340555006866028510531496410361068783466985261109716436026818736563886490826709798213785965104736642449255205017306133161564403956484372912485340893400744383119504990550378802472752313626895486354310900755489783019685903847935003728128148295263281314210940661838521928956857135717111612850156273603672210670314046565734497120392853392157147260060627467961846127245652630705938021428465078397591048780536653936773571834495640320542022519
 . . . . . . . . . . . . . . . . . . . . [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)
							b373fdba0b5376a0c54dbf3e3656a5045cdedf93
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'groupware.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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