groupware.zer0.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:fd:ae:a7:2b:44:64:8e:77:c1:d0:a5:97:9b:6d:52:4d:b8 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:fd:ae:a7:2b:44:64:8e:77:c1:d0:a5:97:9b:6d:52:4d:b8
Serial Number (int): 347660450288682370616181891836857763909048
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 1a:11:9c:22:1e:fe:23:d1:48:95:39:79:b6:7c:04:1b:84:31:25:33
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 01:cf:95:25:c3:f1:ca:de:56:98:fa:dc:4c:f8:61:4c:69:bf:e4:25
Fingerprint (sha256): 54:0c:91:4b:36:8f:74:49:fc:91:b4:fd:0a:77:20:6e:51:6d:57:59:ce:f8:9a:5c:5d:06:41:4c:32:15:c3:61

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

9 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 347660450288682370616181891836857763909048
 . . . . . . . . [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 2019-01-06 08:20:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-06 08:20:20 +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 832002732672278640274909879870051122759348369517675318142361264590351713052711603887460906932002499433650693431240935979667135060052777778430104906716595642313957396694758420967694197316272600669011756549352464780307311092441534779366715320955329081842023448731074360688982620834109305842254556903295909182311459287406930678005713973003015819038113755680932077447771978237844259530099498296477294734198575727505345781283722420289165715917714367074196422008374199746699714699247111305469128468915012393252751063169887385742312150315845548724381627647761292697715169316761041157254959779946206002200934667139540644716226129094972421258347198549896820107295587654251752348297446106562064110321054964420754533978344920231840142982597347161658331824183511709133657541170344650997582588262562049346704362249005013385785589600502897240931546739934819716259430038422858137019321776114383984162031916376267547698312631414942926116751123426747575435773233900961038749482428258450975933165662687750998377588349524944671676285244602690895815637880455175757058301929998641235507533482481013263363520171664477155387497423393444090437279107331476308029147706794165998658556071061868702556000219107480870778368430612601005705231998420755631614191709
 . . . . . . . . . . . . . . . . . . . . [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)
							1a119c221efe23d148953979b67c041b84312533
 . . . . . . . . . . . . . . . . [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 (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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016822768bca00000403004830460221008268af976ebd5818e4f797448dcb1913880a7d15ec7b817d98188765583c2332022100ec28c839864c277d3d063dc083b873f8ff9689aade555f6bfae4b1136740a47d007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016822768bfe0000040300473045022100e1d5d9d76e85f8c489a64f586a61ab0dbedc62c099a68af32f799385c4a53b7b02205be21d8355432152ef226afb674e5c3c3b0a0d596b8f43da3db19271e6a22e27
 . . . . [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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