mta-sts.r13t.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e2:ea:02:4f:21:d8:88:4e:18:6b:50:58:a9:6d:d1:e1:3e 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=mta-sts.r13t.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e2:ea:02:4f:21:d8:88:4e:18:6b:50:58:a9:6d:d1:e1:3e
Serial Number (int): 338551724060012121662789712756754242199870
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e9:bf:63:63:69:8e:d7:f6:1e:83:2c:25:f2:78:bd:6c:7d:4f:b9:25
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f7:73:10:58:d0:41:0d:33:78:12:59:42:c9:77:dc:c5:60:b8:4a:57
Fingerprint (sha256): 6c:38:53:68:60:f7:c8:fa:3d:9e:d4:0f:c0:d4:2b:fe:8a:1a:64:51:cb:dc:8a:b7:52:15:7a:5f:f8:ba:d3:0d

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 mta-sts.r13t.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mta-sts.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mta-sts.r13t.de

Other certificates including the domain name r13t.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for mta-sts.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 338551724060012121662789712756754242199870
 . . . . . . . . [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 2019-03-02 16:19:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-31 16:19:18 +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 'mta-sts.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 781957702154179845882955857433446269012589546066187405365062779753106509702446859540222375358184358640866245294922146316059238042498335562918556334981402766746287648334769545898744453484313170677128547964794432445907797245924754481520082448362147767287735632188129826798131600655211197627100165099456000168596044441175860207396458682380628668263253456161001334000237029909247103265504616356609763103367053235501158137043764810905563508197281063698132450797480416499436367444794649692904152904113825286336485165189730834246571433360691786551948870071273318938743863197660947149256406361212045782329026805125815269466229303012968041698106800477856196163894779789510688795907625503850056746316951615048687061215295030979396083103021143597788105327182438565012825922741140116313683627115554838005157029278494510463606316833284325478612751115797003270765218556188662860693896448674300281382261628840251848022068341783503562539773089029162206900797649560038520789392086881899852630349917190858827302265502302072186304966431049871128871531873965640895357258807923534077748876101501964122717735392299997899874683409146178502282367425267999663925675659376752371617529433035361016047836566776781667722458124420298181835316802939780781709743283
 . . . . . . . . . . . . . . . . . . . . [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)
							e9bf6363698ed7f61e832c25f278bd6c7d4fb925
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mta-sts.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 (69 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001693f6ace66000004030047304502204fbad3c52443295f1cc667b8659038825ab2f9db2ebbe9a06d2d6ddad4adc78f022100b9258bd5671c8980c0248db473cc85581f495649c46d9a397f969d914ae00f5d007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001693f6acebb000004030046304402203bdbdec954c3c227a4a6cdf6b7b744af8e6a8b5157619003f60d6689b4a7c03e02204f2ba968246fab9ee6c1bfa4196f252197836ced0eca4ac3531364e4833822a6
 . . . . [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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