groupware.zer0.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7d:f0:21:fa:0d:85:ea:90:db:bc:e5:ef:be:24:b2:e5:68 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): 03:7d:f0:21:fa:0d:85:ea:90:db:bc:e5:ef:be:24:b2:e5:68
Serial Number (int): 304191344796856571436227472764731368072552
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 62:85:43:46:51:4c:0c:f0:25:55:cc:cf:7b:4a:f7:e1:b5:a7:03:9e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 7e:54:70:89:83:8e:4e:f7:71:8c:03:9f:3e:d5:25:b4:65:8c:71:ac
Fingerprint (sha256): eb:36:cb:bf:16:23:4f:16:d7:e1:5f:fa:54:7d:a0:5c:fd:f4:43:d2:db:4d:09:ac:85:e3:e1:a0:d4:e1:17:82

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 304191344796856571436227472764731368072552
 . . . . . . . . [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 2017-09-11 02:20:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-12-10 02:20:00 +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 '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 881660136508828698950702659119184720043108800143832615065910765104653861954931849001510312851292360261580148193911921827697574905933009282507377341890730003677286595842864269765107312644766465600019124953072345769017640344919277739975342327547855449114091903635905223399338642701124726049302001972915367484181550379937806219834727572342178527219234050836492833555289271557076275453337570413917462620613680101792319257496855331973032698442063248269677218656821376052206096147031673151247844689441158174781217721877718425023165835304882988803205075124045215854601810534825277095566357457765531734415102861493108343360454170748354720775529050525326952588886412439249064255573367441748378582007622331777877866862636231333168089643525938690446922882481323036178194583074438023763310696208724017958253459346541302947003565424899590323189550752384652695186934252849791860181820529753489027133571135532610732807875871487377486056149538577642714059607150122811352973564325712767426746262499745032652360474765220669251890687824394958901591479293095817844203854009483647418215830945092869218207797166678356951145869585186755425999781503009238459502119203703739084631446697942182322595905213097759898656232842610625191270280238144534882082089223
 . . . . . . . . . . . . . . . . . . . . [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)
							62854346514c0cf02555cccf7b4af7e1b5a7039e
 . . . . . . . . . . . . . . . . [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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