www.alpstark.ch

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:dd:1d:5d:b2:dd:b6:03:fd:63:b9:89:70:25:6e:15:22:08 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=www.alpstark.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:dd:1d:5d:b2:dd:b6:03:fd:63:b9:89:70:25:6e:15:22:08
Serial Number (int): 336578295008128411125374165377697258480136
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b2:7b:4a:28:a4:73:22:5b:29:50:f3:34:29:4f:9d:69:97:19:59:44
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ae:5e:03:25:11:ec:b9:59:89:77:9d:2b:29:71:7e:0c:41:f6:bf:f3
Fingerprint (sha256): 17:08:94:f4:70:d8:99:60:3d:68:e5:7f:37:08:69:8b:33:a1:c8:96:f0:0e:28:e2:1b:21:27:da:03:45:9e:d2

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 www.alpstark.ch

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.alpstark.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

alpstark.ch
www.alpstark.ch

Other certificates including the domain name alpstark.ch

(limited to 100 certificates)
alpstark.ch
www.alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
www.alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
www.alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch
alpstark.ch

Certificate

The complete raw certificate details for www.alpstark.ch in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyJMgsfR/J7cHGM+0lfDO
rHiimemoZfeOZTX1EEv8mOLaeUHC2ry0KMdHnENmXy3Re9QTlKBj6UfIPwASW+Xk
QycxhVVtm1Zm/TqQDI68nZZCTERpySqamXk22VptJDRkhddH6F388fLpl0YS/yT9
asMylafmbysJmaRRuhWmHNLDlwVLY43WteObQcjfxOOZQ1J0tF/nORDNNtZIpsEG
BXFcwBi6rRNwRId+McugMFOLwkLER9Bw7H9LMwY1nPgLNYoj3uUPTkoyb9KYXhuP
2xO2V69TNZnQwkGuL+raENHpccNj2sTrSjkJyJ18e32yvm0HkWO6MkrhWOqUA3md
BQIDAQAB
-----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 336578295008128411125374165377697258480136
 . . . . . . . . [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 2019-11-07 15:40:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-05 15:40:22 +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 'www.alpstark.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 25320212373691993228229035679052304940345120573287685578297115155984209872954207246679148611520982637015659956803253132006801413845724774518633675614278251793059141172163946846235611891181772261258906746668755616520268304748651757687330243835692537200761226383082650232625492072859095188690759232258122103810573554925402259887082652478185796894844178962494906628293386755095370349602261406427689845965423835498709269688567562474458210424679870220008580887370709863363408542584833030107675907142979320050251924472897460952330178591971448433834953830574862108028154759381707375579011506896797579844828938260839709383941
 . . . . . . . . . . . . . . . . . . . . [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)
							b27b4a28a473225b2950f334294f9d6997195944
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'alpstark.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.alpstark.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e46bd015a00000403004730450220646bd7a3b9f7d90189468c604c36cb8d47a66512ea9c8f2b4eb5f576ecb6315a022100b66883e1c3c90f6ce755efcd1edb3853f8230dd0e027e0a77521b8087c7a91a2007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e46bd01600000040300483046022100bdfec745d28990de86e942cefc7892dfe0e928383153f2b2f4943041fd105844022100e8f03baa2791859ac76f22f96b1a72b813d2ea3ec04b34289677257ebe6034d3
 . . . . [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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