mail.blek.ch

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7a:ae:6b:c7:87:7c:34:f1:f0:ea:a0:3f:85:3d:96:67:b6 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): 03:7a:ae:6b:c7:87:7c:34:f1:f0:ea:a0:3f:85:3d:96:67:b6
Serial Number (int): 303083151853599424284847930027857545684918
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e4:58:a8:4c:d2:fc:01:5d:93:a1:df:70:08:04:88:0d:e2:d4:67:d6
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 15:ac:5c:2e:73:96:f9:2b:7b:54:9b:f4:8b:1d:ec:bc:0c:b3:c0:bc
Fingerprint (sha256): 7c:4a:43:5e:3e:63:8d:2f:80:58:ba:f5:55:87:24:fd:11:8b:1a:eb:bc:49:68:43:9a:52:c8:cc:6e:81:ce: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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2H+/pegS7cwRxVGzexg5
Y7bxouY+L11+QEpooZiBhp5/nlI2AaFSwIL9QUd8rywi/BSHL4PNXdFy6R8GSjlG
d431QZfMjCGJemasfmMWyujhQQp06LU0J2Ne22/20rCh6sbC7hxkQnExOVCGRrmM
xggxIK7gvrQyILlBMACM5HctM0ZsS7NC93hWZhDX0Ggras6UPCSZuz5MM/t3tc5h
fQkdP/BMri8Voj8M2mG0yOeij5Qq4bgmrHbJ99wqqovIEw7JcTH27FVPaLCV6FNY
3EEQaEumqsvZeBNVvWQJEntLLWzRXYPCHrTu9cU2B16C66PdbMkgpokiPEsovd/S
yQIDAQAB
-----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 303083151853599424284847930027857545684918
 . . . . . . . . [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 2016-12-31 09:19:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-03-31 09:19:00 +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 27330469067658720880420119511289236386692752450124202597763647133990538005668227726044684608207038044800732370009423687073225772878013706247648837915182079845188499020807645217114181548791734549936992475734242579009705625796960459313084487425107190640197201614610691724962048671240843936883626472097786822513712920834599707671142074452555676220098040536825688481372110051855666070450598327947102224910993037407130734302236086450835946950251278852843584811781858121468417321949554544611720269510389289329614936302878838946232447579535109871713283600139305872993028388643170894105131297203440725622663440935416613556937
 . . . . . . . . . . . . . . . . . . . . [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)
							e458a84cd2fc015d93a1df700804880de2d467d6
 . . . . . . . . . . . . . . . . [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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