mail.blek.ch

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:bd:23:ad:1c:0e:07:1a:16:fa:41:86:b2:dc:45:97:5f:c5 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:bd:23:ad:1c:0e:07:1a:16:fa:41:86:b2:dc:45:97:5f:c5
Serial Number (int): 325697646959565969228275870627327269887941
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c7:83:a9:1a:03:3f:0d:ee:e2:09:32:66:b9:3d:3e:a6:7e:fc:e0:2d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 69:b7:e9:8d:f7:31:01:63:75:6c:f8:08:c3:1d:a3:65:22:d5:8a:a0
Fingerprint (sha256): 5a:a1:77:80:e0:36:b9:b6:3f:0c:6e:a0:e3:c9:7b:d3:c3:b9:53:b1:99:91:f4:dd:d4:0d:a1:c6:3d:4f:a1:a5

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8s2+v8YtBJ6zWnC1igkj
iM+s9RDwbl+XIDd6Nh9tGOsdhn0qDthHpEi4O83XqBvV4bwWvSjGafzb/uMqzKFT
626Ic/bGYpkjoPgRvpWaBhCpMh7d6C53CXR5CiMZvMLUdE94psWO3UozckW43EVe
LdvFc/A1HxkmVT3rFBRmCMGb1G6ejn/91lRpa2GXOfqONorJrCrQqjXDp47pFv7Z
xFshBChvPt5DIuFAHoTREsAoUfxDgGfuCu6fL33gef3Z6f38Mmaudw6owvo5XLXE
/NA1q62/14jSNsU4fEEwhqjx6mBwxIBbNd5vvy9gyVmflMnThaQjxKtT1yL8i5Jw
HwIDAQAB
-----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 325697646959565969228275870627327269887941
 . . . . . . . . [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 2017-08-28 10:01:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-11-26 10:01:00 +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 30651126498714708817915562019271724889510209482190735796802263164451012697262614680351711281001549166502216554996348788499997488271164430826195818657752212072701701843517663029106959852513039377656648737564073677972843337936736896816757807493935733389535875211835648298233618478559380681983363236924859994164227629473521220528782639174353642665429941444123273688216622927788935860750154024938157977011926771152023249246782675648810495129843415045010663781289914061157150849357281196538095049326479380777424901335113558290122441225991849406346585195806584380229191692849122237538586237266673973925058997302950496464927
 . . . . . . . . . . . . . . . . . . . . [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)
							c783a91a033f0deee2093266b93d3ea67efce02d
 . . . . . . . . . . . . . . . . [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 (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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