mail.blek.ch

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ac:42:9c:e8:a0:80:8c:5d:2a:a8:b5:9d:0a:ec:a5:83:e0 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.blek.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ac:42:9c:e8:a0:80:8c:5d:2a:a8:b5:9d:0a:ec:a5:83:e0
Serial Number (int): 319953968669949209356602546550290749162464
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ae:db:35:be:b5:79:63:82:b2:26:df:f8:90:d8:46:cd:e8:17:4a:87
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e8:0d:77:0f:8c:16:98:99:d0:90:06:a2:cb:68:15:9f:40:ab:91:12
Fingerprint (sha256): 6e:17:95:78:63:d0:5f:cb:32:5c:15:aa:26:57:d2:0e:c4:c6:03:02:05:bf:ca:3b:e7:2e:f6:20:f9:cb:ce:30

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

2

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.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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA44i1MdLKCUmGZCERhmHf
AIGDvOlq6YXs+XNArDt86W3O9Knh6L4NV0iUvXA4CMOlII27n1A+49VldChOTZMO
dd+llEr27pF/dhS7chHC222Onfvh8Vu5Jf7gOIrJXEtdOS3KkDBdhjfgDi5F32zb
jw4AMqClm0f4AunYhXDA1qMfqHqv31mHwdWfnjDdfMPGN2GeBBnBK/RnRHHwrvLd
jUBxVLey9dySmk720ekLzR33Wb8uB+q0lsvzxD9JR+CpwNnfaGFojE7KWwzE13Ps
PFg3ExYT6c3FDtXsY3kbFnxTFWNe4LWJ1oWjJkwL6nvhOc0zNi/bj4cgVft/qQFs
iwIDAQAB
-----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 319953968669949209356602546550290749162464
 . . . . . . . . [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 2017-10-31 10:34:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-01-29 10:34:12 +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 28723508351802892142861943118821564465734197841990973428322660292255266663297556161996145978677641415428434583219633013243911735972094022072952175101534366693412760671680065651320821122137842436357910846742958176295712113268314876695020281713998286598357090169252298329030451732015336483164501487295895389947216034436594556888018780374661003794301661465245951495533105316801510829639491812594666940983296975055751930968081219948571518546226028918383079923358869507670709371686579414370618410339931896054212820426633266064288233922088027766043032504953216434567050027956762073179365727009141254677927826539634090929291
 . . . . . . . . . . . . . . . . . . . . [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)
							aedb35beb5796382b226dff890d846cde8174a87
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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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