mail.r13t.de

Issued by Let's Encrypt Authority X1

About this certificate

This digital certificate with serial number 01:7c:e0:f1:a8:de:1a:ff:37:32:7d:f8:e6:ff:1a:2a:c3:5d was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=mail.r13t.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 01:7c:e0:f1:a8:de:1a:ff:37:32:7d:f8:e6:ff:1a:2a:c3:5d
Serial Number (int): 129606301269597164803719521346869686616925
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: c5:58:c0:96:ae:90:72:cf:0d:c7:78:1e:d6:31:59:57:8f:f3:3f:21
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 74:8d:7a:bb:d3:de:15:7d:91:3f:cf:f8:a2:a5:6d:67:f0:c9:aa:e2
Fingerprint (sha256): 6e:08:a4:07:47:a3:4b:27:b4:cf:79:21:0b:dd:21:c0:8c:27:e6:8d:57:a5:ce:37:7e:e7:b5:db:e6:c7:f8:73

Issuing Certificate URL: http://cert.int-x1.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x1.letsencrypt.org/

Check the revocation status for certificate mail.r13t.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.r13t.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

mail.r13t.de
imap.r13t.de

Other certificates including the domain name r13t.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for mail.r13t.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 129606301269597164803719521346869686616925
 . . . . . . . . [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 X1'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-12-17 23:25:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-03-16 23:25:00 +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 'mail.r13t.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 884880757071903960757093764729002736331916524834192932560522506699420026706100083094128566684663866922949301045177752485151652878321314017390435780245994425333482195018770885330814167649704028390944249544564142497332272380159895059762231603651329299337756241761053647448080993826554117965146323900068367099615275579231248039067255185802888199188940359068514777448550730407586724700847062464546406758109938917356104662484280414995356079943441818322512789465475098593479938853401507675438288221974520620337867957639453039297477620519078672243047494042371774273058560896472080001014809654520763494524333458343859708398561776746629230161255732434778962211762097222133805917549665780226227806633439368755155335144507825818233762161733237155154615094393569214253803209021934790605601654304786944666041290675207189222911841344580789563961078584227800016695211812468849235592948478722826009818441879065668095812587078469552876310187444117896787075646533507266687742584118408770515266113651371115122795122024735941005824897371482980729849288290478364499751794375528770312880790244201828321156248335511557392542365600350287981432294934563197061503182610254355269770964898339493592266353127650528865790600655584078818436988691070986986176976793
 . . . . . . . . . . . . . . . . . . . . [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)
							c558c096ae9072cf0dc7781ed63159578ff33f21
 . . . . . . . . . . . . . . . . [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 (100 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-x1.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-x1.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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.r13t.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'imap.r13t.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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