mail.r13t.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:df:40:08:16:c2:62:7a:03:86:dd:43:f8:24:44:97:f4:5d 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): 03:df:40:08:16:c2:62:7a:03:86:dd:43:f8:24:44:97:f4:5d
Serial Number (int): 337304938210368872031362530496618761286749
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 25:81:17:e1:38:54:4c:9a:ee:f4:c7:b9:1d:4f:8b:84:0f:89:df:ad
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 38:7d:19:3d:22:d1:34:9a:02:62:50:1a:d3:b4:08:1f:8d:25:ca:8d
Fingerprint (sha256): 13:04:64:5b:42:00:af:ac:f1:91:86:04:90:98:1a:7e:1c:06:5a:93:9d:9c:a2:9d:08:21:44:d8:aa:ad:66:bb

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 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

imap.r13t.de
mail.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 337304938210368872031362530496618761286749
 . . . . . . . . [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 2016-04-24 18:18:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-07-23 18:18:00 +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 623053751891059619922554197474195118109848220096350090940806694577272361285101984165309653563462016592641213962107984873626474043797083681090727992934839542158605365916045105713022856560530470419585471721133552107194036678570627472485816943508207696309301540745958891904317026624245098557347170268490390797549669023978945107767907014319805647375667860815589588053324262749519617586311949561246951002724909347442898340521252350150215382010300823393655476344832284869706962855319176179328058675392568485786856806541325899265449423281208489170903183053766827290637519595588287836960510131102138271050531965199526296969568058795444112632565959134475939016147712760181552536910153368553712107446328729840170368203816859006459188453277667734300186954397743693808815747310839083800248406906234853723571105802960469745169710960718194496860681900277652209058789733203987821153366851844675794612139347673906848972159337388650918563019704356932701935626345786008193585270913026734884542394411039227754604676702680222472691619955816169717904304876897868428090467093521783268811879247047465530128960241347773441153406933965643168691206862865129745882084305823249484922083280247319997448547575585766970744206436914816780144648340689010101380483879
 . . . . . . . . . . . . . . . . . . . . [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)
							258117e138544c9aeef4c7b91d4f8b840f89dfad
 . . . . . . . . . . . . . . . . [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-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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'imap.r13t.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.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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