mail.r13t.de

Issued by Let's Encrypt Authority X1

About this certificate

This digital certificate with serial number 01:7e:ed:e5:bf:5e:e7:06:96:3a:b9:9c:06:58:30:fc:a0:43 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): 01:7e:ed:e5:bf:5e:e7:06:96:3a:b9:9c:06:58:30:fc:a0:43
Serial Number (int): 130304084116239303154486041060941057794115
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: 2f:c4:eb:5b:92:c5:78:57:2a:16:45:80:a9:13:d0:a4:c8:19:53:74
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 30:b9:18:9a:7f:7b:d2:5a:89:e6:10:06:78:f8:3c:7f:79:87:d8:c2
Fingerprint (sha256): 8b:69:35:b2:01:ac:46:b6:d8:03:2a:48:14:19:9c:7d:c8:bd:f4:23:d7:fb:9e:bb:d2:f7:30:16:78:10:ed:c2

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 130304084116239303154486041060941057794115
 . . . . . . . . [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 2016-03-03 11:02:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-06-01 11:02:00 +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 784765421474594225064048974352308085184592584038027540314922836245024407367403657378460858115805294048914517802588369577231887294300649368690787381466632621187811769097783011728408772805865405769478355030025965107214627646559400884857769092141722352074400605338658326158291939531988791058631397899621996117773143842414466554724035010310537640314866263296675568493646290394827399161438383484658592819671785030469937362317549144885126616738759736285764561359814415949511701646615206991818307940794188854455664639872344523043701065542335410075486862421172482216314406725927393378587110376548627858560881867323358009065205398919051476960084564386511292561361838776838094517763757187519149168180115012618729306116389835104226816745776996118011815521304952891679676162396657919878567933843970586941896813006967430161015232265365917829539921945962007941416284983450369933663580207420939362533772376670347015784053595348506206546100730650340180544065770728661425092059580810223617999400822464963438953761072113537555196740078330366836984970148988073443063825701537559378160894333526684117307557077436487455260880478836393589946534104737096329735288434635850789148082673311059661379007307627815757543929685183927720786238032963801313280764019
 . . . . . . . . . . . . . . . . . . . . [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)
							2fc4eb5b92c578572a164580a913d0a4c8195374
 . . . . . . . . . . . . . . . . [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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