mail.blek.ch

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:df:ea:ae:a7:a7:38:ee:a2:87:c0:52:41:49:f2:d0:aa:7b was issued on by Let's Encrypt.

With 3 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.blek.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:df:ea:ae:a7:a7:38:ee:a2:87:c0:52:41:49:f2:d0:aa:7b
Serial Number (int): 337531771829728199268604798791876703464059
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 93:c4:57:a5:c5:14:8b:dc:ec:35:48:9a:1e:a2:06:a9:63:a5:cc:19
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b4:c1:91:02:d2:d7:0c:8a:cd:6c:e0:78:b4:7c:5b:0f:d7:bd:93:63
Fingerprint (sha256): 5b:85:5a:a4:04:52:40:9d:93:9d:80:7a:85:48:78:82:67:68:30:49:6c:fa:bd:e0:cb:a8:2e:7d:6f:5a:ae:fa

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.blek.ch

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.blek.ch

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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mail.balelec.ch
mail.blek.ch
rc.blek.ch

Other certificates including the domain name blek.ch

(limited to 100 certificates)
archives.blek.ch
benevoles.balelec.ch
webcams.blek.ch
*.blek.ch
*.blek.ch
intranet.blek.ch
mail.blek.ch
public.balelec.ch
stats.blek.ch
gallery.blek.ch
files.blek.ch
mail.blek.ch
mail.blek.ch
auth.blek.ch
webcams.blek.ch
gallery.blek.ch
public.balelec.ch
auth.blek.ch
mail.blek.ch
archives.blek.ch
public.balelec.ch
webcams.blek.ch
public.balelec.ch
webcams.blek.ch
public.balelec.ch
files.blek.ch
*.blek.ch
gallery.blek.ch
stats.blek.ch
gallery.blek.ch
auth.blek.ch
mail.blek.ch
files.blek.ch
auth.blek.ch
mail.blek.ch
gallery.blek.ch
public.balelec.ch
gallery.blek.ch
public.balelec.ch
*.srv.blek.ch
benevoles.balelec.ch
files.blek.ch
archives.blek.ch
auth.blek.ch
archives.blek.ch
stats.blek.ch
intranet.blek.ch
auth.blek.ch
files.blek.ch
files.blek.ch
auth.blek.ch
gallery.blek.ch
intranet.blek.ch
mail.blek.ch
cdn.blek.ch
auth.blek.ch
webcams.blek.ch
archives.blek.ch
intranet.blek.ch
public.balelec.ch
gallery.blek.ch
auth.blek.ch
files.blek.ch
webcams.blek.ch
mail.blek.ch
benevoles.balelec.ch
mail.blek.ch
*.srv.blek.ch
webcams.blek.ch
webcams.blek.ch
intranet.blek.ch
stats.blek.ch
intranet.blek.ch
auth.blek.ch
auth.blek.ch
public.balelec.ch
archives.blek.ch
archives.blek.ch
webcams.blek.ch
files.blek.ch
public.balelec.ch
mail.blek.ch
gallery.blek.ch
gallery.blek.ch
gallery.blek.ch
archives.blek.ch
public.balelec.ch
webcams.blek.ch
webcams.blek.ch
intranet.blek.ch
mail.blek.ch
public.balelec.ch
public.balelec.ch
public.balelec.ch
auth.balelec.ch
archives.blek.ch
*.blek.ch
public.balelec.ch
auth.blek.ch
archives.blek.ch

Certificate

The complete raw certificate details for mail.blek.ch in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1ehcbJRRIogCCMJyzfvK
TKFC49vpg8XQCdhnfYYsZhAmg5B8PCPQMq7qtvhCztDTXiHuTaGSx7FShU3arS7a
5VE93ZDflGkHXKew+NnDU2GKhWr9caZAf/qGSerNqpQaPbuhd+bbcnJMSoyWFWDz
pCO+vZ6esfamo+SGwm7Y0zae2LREFjr0BQsSmlws7hei3M6o1FRJ3hp1lcG2LCXH
dl3/MNBr1Acm3GY3U5LdxvVAi7g6Lpn2azewS77y3PPBBq32JN9OTnI72/2TKhFL
1uflfUXE7gX9m9koUt06HaYD1hMTdO3nffnI2EnWe5uWtprNf6Fk4MSarUYdbq+U
5wIDAQAB
-----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 337531771829728199268604798791876703464059
 . . . . . . . . [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 2017-03-01 10:13:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-05-30 10:13:00 +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.blek.ch'
 . . . . . . . . [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 27003340453056748931101043639870123174613098849155254671886411139193586831003497471142892062147543728780067441206262693237638560018461909680948984728142554130275877528254546167008412001153246783853657490497168292241074723848022080822061083814925634448002952943105235284550735998328172219142446629251183189055016745125317381712390347141193191533816168373262255173241107286537074472743276575967590847369237295035009291726113559973564571284656319008450544861883827085167291236123867789344103963727601242188529696458765654876207200573738898593017568292325022833035392657068263790817351634970956864299278567829235502650599
 . . . . . . . . . . . . . . . . . . . . [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)
							93c457a5c5148bdcec35489a1ea206a963a5cc19
 . . . . . . . . . . . . . . . . [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 (45 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.balelec.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.blek.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rc.blek.ch'
 . . . . . . . . . . . . . . . . [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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