groupware.zer0.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:87:42:00:bc:45:95:5c:43:ca:4e:96:d1:3f:82:b7:d9:58 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): 03:87:42:00:bc:45:95:5c:43:ca:4e:96:d1:3f:82:b7:d9:58
Serial Number (int): 307362710195935210462806445332834767329624
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 09:42:f6:f5:3b:a9:6f:1a:e3:fb:c4:38:60:76:14:28:d7:97:04:ac
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 12:77:fd:33:2a:4d:d2:9b:a5:d1:c0:56:36:ce:b7:db:6c:16:4d:82
Fingerprint (sha256): e3:bf:51:e4:e2:56:3e:5b:be:a0:c8:91:19:70:26:09:91:d8:dc:e8:7c:1e:48:8b:ad:89:83:31:3e:31:a5:d4

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 307362710195935210462806445332834767329624
 . . . . . . . . [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 2018-01-11 03:20:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-11 03:20:14 +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 905385301951088287907942340283711793102712164781799700810306600287639379639892671640286928685472181485469106222133309531541157298726189837840886868320539860437503155212255633286244637878061359944118948493090949775652500273676069845518216335425626819615026414899013125396311893703763857989701019366394403682289908775488352402861480027720893103763160864575751967892483735348087475583009173765075770234424748573984445346496212009738949090959846658495499169295130558804250109605256167333555778973489690576861260046722861703409227945113872061742908349452153356550940361840081750135327236398199404554409852474167993994824390091997880108516682412342648218532013851375761926689101899953436416620798472894198750736044980323240154414665240341611440555059608529116436019166936498621517297986632920594128750565717290855298159184420548299736686150305861608342616072063721600200610531221534106601718170573616837319498038390914450857563401167881760559480712536134848632874711677101049585071381154938312195917045412771581590931765755778905500554054403535943731544212508613479410825381975498185820170994109111123262544975607254672070488593089722060478525184391763151697815503580062959815833731090710800071169223019778232470463032324068507532229902047
 . . . . . . . . . . . . . . . . . . . . [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)
							0942f6f53ba96f1ae3fbc43860761428d79704ac
 . . . . . . . . . . . . . . . . [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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