www.cedernet.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:1f:af:f3:ba:f0:02:33:30:0a:84:dd:8c:ac:c5:c0:22:48 was issued on by Let's Encrypt.

With 5 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=www.cedernet.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:1f:af:f3:ba:f0:02:33:30:0a:84:dd:8c:ac:c5:c0:22:48
Serial Number (int): 272119491588772442682846425978541113877064
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b2:49:39:98:f8:80:79:bd:53:c2:6f:75:8e:3c:17:9c:e1:82:59:22
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f2:ec:9a:52:31:7c:5a:fe:0a:b4:31:d5:31:01:b9:71:99:b2:b2:45
Fingerprint (sha256): a6:fb:cd:78:ee:ca:ef:85:b8:c0:62:9b:81:e0:20:bb:a7:b7:e9:52:a0:e5:5d:69:24:85:20:51:17:00:87:dc

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.cedernet.de

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.cedernet.de

Public Key Algorithm

RSA

Key Size

2048

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

imap.cedernet.de
intra.cedernet.de
llehs.1337.cx
smtp.cedernet.de
www.cedernet.de

Other certificates including the domain name cedernet.de

(limited to 100 certificates)
intra.cedernet.de
www.cedernet.de
www.cedernet.de
www.cedernet.de

Certificate

The complete raw certificate details for www.cedernet.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4KYq7ddWYKhukuavOpuf
ydNRNxaCCbmMN7a19xGqqpC+r6dBnjkHkPli182hBFY7BTHkydYLwkkvirWaF+EX
JuITUQMoBco866NpUgtIMe69grXQ2jke2UrD7nlru1KyGl2s2Dt4xpgCV6R19JOe
5HQ7fQi0Hy69jvq4L7BcpBUJh/TapqoCZeqvQLgC0oqYFt8gEeN1IESVumMgv+/R
AHvy+8pURcpzOI0mjhfZxjwp0+aVfQMIMZu+xnGKfILdywJ5h0jV79iuTK/WksPa
huckt0m46kgZi9xDXVvgQnWqvmCNES9zrvmrE/Co4aIaAD4Wi9yldmLe2zR5Iao6
uQIDAQAB
-----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 272119491588772442682846425978541113877064
 . . . . . . . . [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 2019-09-09 16:48:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-08 16:48:23 +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.cedernet.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 28359320655117076119605986434399487030314231187289660536188210124054663768393293083796878651070013093815771616951172871432826196172850663180894745302549438274834619424085007934313905241647843084366445872360463493107203960585807633241053806536191775767466511936436852688934943332255975540414024222100621877796054223725804303384693927146980307165952786277016193314257602781412764725366442931716128200393099249902379562522938486388971417021012675480909039944641249481736662844151231026622981937464692209268061666890021861123762029992806207962459037741649899366136196458349544195026022079750298830602707616448825300499129
 . . . . . . . . . . . . . . . . . . . . [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)
							b2493998f88079bd53c26f758e3c179ce1825922
 . . . . . . . . . . . . . . . . [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 (89 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'imap.cedernet.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'intra.cedernet.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'llehs.1337.cx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'smtp.cedernet.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cedernet.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016d172412e70000040300473045022100fd9e095826b623bf8bfaa624729ec0f9825b485462d17b0ced64daed848b89d9022034c999a9595fd4e5836432e61ebf42ced29fd3a805c5a0d37bcb08f20772a99600770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d172412cd0000040300483046022100ca5854cfdbdef34cb15b775df514c071836de0fd08d6dd2ebb3d8224f9747361022100d8319a962998f73ebe50e11abf2f096fbe61572091575904eb1364a190b531be
 . . . . [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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