strategie-leitfaden.ch

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e1:a8:a9:f4:ba:f6:97:7e:c3:9d:30:0e:2c:01:0a:66:9b was issued on by Let's Encrypt.

With 8 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=strategie-leitfaden.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e1:a8:a9:f4:ba:f6:97:7e:c3:9d:30:0e:2c:01:0a:66:9b
Serial Number (int): 338124583117673550449150227855786390480539
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b9:3e:03:3a:5d:56:de:4c:1c:87:f9:db:81:7f:f8:31:08:96:41:9e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 73:44:a0:ee:e0:28:d1:93:76:08:4c:d8:5d:86:7d:c9:f3:55:e5:42
Fingerprint (sha256): d1:a7:b8:8a:e4:87:c6:28:aa:1a:28:17:20:3c:7c:b5:3d:f5:26:15:56:e9:9b:09:23:b0:a2:84:95:3d:be:07

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 strategie-leitfaden.ch

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for strategie-leitfaden.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

strategie-leitfaden.ch
strategieleitfaden.ch
strategieleitfaden.com
strategieleitfaden.furger-partner.ch
www.strategie-leitfaden.ch
www.strategieleitfaden.ch
www.strategieleitfaden.com
www.strategieleitfaden.furger-partner.ch

Other certificates including the domain name strategie-leitfaden.ch

(limited to 100 certificates)

Certificate

The complete raw certificate details for strategie-leitfaden.ch in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2AWLh9Su0ygqb3SRYVRy
O2OeMniE95IU6/w7aMWzC+fvmo1S5KIZuz7KjZ1gaHXI7mDNooQyKDLn8NyXEUyl
PvpUpTWreitgsKVgF8ZMGm31rXVSjzWgwIspV7SIqDN7TWLkJ9WgJIdWlIaz8/V9
LBDZP45NBTGK30IX4ZJnz7WRt5gpj+aZJrgrXECqRY+c/PSmeZq99WEnkAKHPYez
9DVbNjFyzvE/9oxMVWYZKZpgW0XTyfEcrcGu6K3POzwQdSqIKTAiG+4prRNgaxHe
s6rv0lk1lm5dz8C5qjRAfWvp6BBhT2ltkGlEcHDCIahLNqN/y6ewcgk/I7uz4TWz
AQIDAQAB
-----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 338124583117673550449150227855786390480539
 . . . . . . . . [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 2019-11-01 10:58:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-30 10:58:11 +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 'strategie-leitfaden.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 27270208234476021405777551243894231084846025247591145954593009301751027033179943191176279275102833514457216591528150369439502453187146180532359951146828381114336415840536843255549533558043750693689042863066634656684488345025446730643466310060011914469831870299784032073648098969453131897253176718236063375347771248568264837791731431227444444792940338715251924956223240912474359773638280842434837647136887486523371138034327312164723172188656853436505742529582606031348010991878074467165365021167574069207222814438306501930036127745066944865761783384841826356009735270500041021239906669829657230596870579748143505978113
 . . . . . . . . . . . . . . . . . . . . [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)
							b93e033a5d56de4c1c87f9db817ff8310896419e
 . . . . . . . . . . . . . . . . [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 (237 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'strategie-leitfaden.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'strategieleitfaden.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'strategieleitfaden.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'strategieleitfaden.furger-partner.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.strategie-leitfaden.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.strategieleitfaden.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.strategieleitfaden.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.strategieleitfaden.furger-partner.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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e26d481110000040300473045022100a99afd5687e3e93b67b7cf78aa536df99a2b310a7753f68f56adbdaf57e0d62602204aa8d5335c1489d049b7f3f654f2faa7f6ad778e59c78786ad3db3177382bcc0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e26d48102000004030047304502206b8db8f29e9c134375c3336a42ffdf1b3e7699b133d032faef23e54ae07b4ae9022100d89f88b51947e41f1a5f4aa07bf25db92c028ab87a74fc29045bbcc72eca4d6a
 . . . . [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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