von-thomas-gruber.at

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:47:dc:e3:2e:32:d9:55:a6:40:b8:f8:05:56:88:2c:01:96 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=von-thomas-gruber.at

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:47:dc:e3:2e:32:d9:55:a6:40:b8:f8:05:56:88:2c:01:96
Serial Number (int): 285790515594146451428304521301870752039318
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 10:43:c7:94:8a:b3:ef:79:47:b7:6f:d9:73:28:97:8d:8d:91:26:74
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 32:82:34:a1:b2:e7:f0:70:b5:7d:5f:c5:a8:ad:f8:20:7c:76:94:ef
Fingerprint (sha256): 1a:a6:7e:32:1b:40:a4:21:17:be:75:57:14:f4:97:86:9b:1e:96:f6:26:55:b3:94:62:c4:fd:31:fe:eb:f4:61

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 von-thomas-gruber.at

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for von-thomas-gruber.at

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

cpanel.von-thomas-gruber.at
mail.von-thomas-gruber.at
von-thomas-gruber.administracija.info
von-thomas-gruber.at
webdisk.von-thomas-gruber.at
webmail.von-thomas-gruber.at
www.von-thomas-gruber.administracija.info
www.von-thomas-gruber.at

Other certificates including the domain name von-thomas-gruber.at

(limited to 100 certificates)

Certificate

The complete raw certificate details for von-thomas-gruber.at in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtR2W2rgqSNubgzT+l8TS
EUTQfNF/lNKEo1+/M8vDJkwdMcL2QaDWIYGT5vgORcEHAuJ570N9V+3K7Jz5fAgk
8v2fBIaSVjHLCC7i/pu6esVMgVSq05CFLBOQx+uqKy+Nk9tmIeyj/CdX6bwPvmBe
j/1m+gWka+ola0k9furiaJBQt6XBP3B7eZ4Q5BhFE5Yo+t+RpUQObZIXxJV8DSYo
KD8pGYuS0p/WuQ0TnxQH2v4ysxJF8A7R/aT4sRFbYdQzXqrSU5hSU7mhp6NsHNGg
y9CrRYR0I3MQiOZdrYjCiZpvkTfKqFi+2yXk+80bVBu+UWYQ+ZuqV5fEu1q8ySAL
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 285790515594146451428304521301870752039318
 . . . . . . . . [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 2020-01-18 05:46:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-17 05:46:52 +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 'von-thomas-gruber.at'
 . . . . . . . . [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 22863724214120992057705539779802793845839389488719033382756329075500407801237796010564313325158935335440859662058365757577036605426988301789019870717096917529122626282111473053348073600936039307659304918290357437548234776245945064619934553298965889465264435934485935021441496434170779097124967699913906138710012196613489462850048002750846300197408484698621436281987302232907731730248307575325085107629799729376162379580606366907651273473990437947254052770005265336393416000643708024425821812418841599627681835022081158135888936553130583369233473780343588338746508603037615600177155772340551739117312575419334086626079
 . . . . . . . . . . . . . . . . . . . . [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)
							1043c7948ab3ef7947b76fd97328978d8d912674
 . . . . . . . . . . . . . . . . [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 (249 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.von-thomas-gruber.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.von-thomas-gruber.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'von-thomas-gruber.administracija.info'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'von-thomas-gruber.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.von-thomas-gruber.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.von-thomas-gruber.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.von-thomas-gruber.administracija.info'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.von-thomas-gruber.at'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fb76785c70000040300483046022100caca1085519aff0103ee229251385581eec6ee871fee882e817811787d5a97b8022100a228c58a70b0e4c3abbb3924338a68d6bb253ef0c290f60d281b3db6c4c26f36007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fb76785b20000040300483046022100f82f982a289de761d759a61d2750e1992f0410cd3c49be25a21d0231c1344b0f022100cd9eb47a5ac5122c6252c6c78e0f39d1370be421f73ced83fc6784b96c353005
 . . . . [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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