www.wittwer-steuerberatung.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:aa:fb:08:0e:5d:cf:3e:59:1a:96:29:5b:56:1b:c7:37:d3 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=www.wittwer-steuerberatung.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:aa:fb:08:0e:5d:cf:3e:59:1a:96:29:5b:56:1b:c7:37:d3
Serial Number (int): 319518538228543253227530122056115547486163
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8b:67:ea:5b:fe:5d:e4:50:e9:e0:8f:ca:d2:e7:65:d3:b8:8c:dd:d1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3a:bd:42:4b:9c:86:48:af:de:98:c0:95:3f:fc:2f:07:18:28:01:be
Fingerprint (sha256): 27:9c:85:91:bf:22:76:51:d8:19:7b:7e:4f:a9:1f:76:b1:d8:15:cf:8e:de:41:9f:02:99:40:bc:a7:d4:21:e8

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 www.wittwer-steuerberatung.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.wittwer-steuerberatung.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

www.wittwer-steuerberatung.de

Other certificates including the domain name wittwer-steuerberatung.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.wittwer-steuerberatung.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 319518538228543253227530122056115547486163
 . . . . . . . . [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 2017-07-31 20:56:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-10-29 20:56:00 +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 'www.wittwer-steuerberatung.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 796133243074008422261256741008267605285544101878260640042613207185709612657815687463000958794598171439866710259773748990331673495883850542115874466601454077760604958239475093685355808617599532743622996637212177296776934336922024933198612501461542806004512989087000575776127429627560245748897088182075498215074421484201063818536567652086909726875567286265221734066246327687263734354651092314764660714008421403992250735747915180758504276376441126822015808441062889593715063847903966591910183140407653888832207541916546287393401884044212446444015512889296287107203176836088496227792016374971395209597035882849063066368137170919662755346612651093347617947689639203821826863476310236443797977976901744484942461485099723305397927710336615443970960888938216538062281822767829369201323793305128113517108218101061905777341349599484945311513265792902543098061860534907156771027578993265918327219148377913140911870959811653761983912940240845940227738827726178876967713701144915354567200594622584297982855970773455493627655391364592237899410348815910718635601494982770857717405422103136803114647494429485838299308790035977350220189767208308807297802666258533186252033029150595883497110707021013919421007776521824992235686331294243589273873744483
 . . . . . . . . . . . . . . . . . . . . [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)
							8b67ea5bfe5de450e9e08fcad2e765d3b88cddd1
 . . . . . . . . . . . . . . . . [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 (33 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wittwer-steuerberatung.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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