xrstf.de

Issued by R3

About this certificate

This digital certificate with serial number 04:31:61:83:b4:48:58:c6:79:bb:aa:71:0c:f8:08:3c:ef:d2 was issued on by Let's Encrypt.

With 15 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=xrstf.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:31:61:83:b4:48:58:c6:79:bb:aa:71:0c:f8:08:3c:ef:d2
Serial Number (int): 365252598669212207179664398414947383308242
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 82:99:d1:4b:b5:22:a4:70:9e:d5:76:94:07:64:64:77:35:88:bb:c4
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 29:2d:7f:44:a9:2c:9d:8b:68:f8:9d:df:2e:ca:dc:67:73:27:b7:13
Fingerprint (sha256): 2c:77:99:d4:e8:72:1c:c3:a0:83:7d:b0:20:45:2d:36:01:d8:fc:a9:70:23:56:38:c1:c7:1d:aa:c7:14:57:50

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate xrstf.de

15

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for xrstf.de

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

adminer.xrstf.de
christoph-mewes.de
go.xrstf.de
inbox.xrstf.de
mail.xrstf.de
monitor.xrstf.de
omnidb.xrstf.de
post.xrstf.de
sdv.xrstf.de
sensors.xrstf.de
syncthing.xrstf.de
wetter.xrstf.de
www.christoph-mewes.de
www.xrstf.de
xrstf.de

Other certificates including the domain name xrstf.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for xrstf.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArtlGPF9llaYlceIUHk0v
xrCCZQTHdHY7PkId4HFj+PGjrBLId0mAx9balsIpWSd0lLJuvLbQ9S9SgAnHePu9
qAjMY4NHe9UPiYID6DiCfMzX/7K6xjcNpJiQHF7MsMArBskcuZ3yUNRGcoSRRetW
JfedIk0rJ8ufM1WFZ81QsMwh9JW3qNiXSi/eS1uNWfp5QHouBDnezk+3eu+Frllk
qgEyhtVvsnnpkXYbNqgLwPBkm9fusQYpv2xaxw/QoY/UkeA+0iWSviwJlUkOfHkq
6nIBC/ixFfhBla8mEAS98KF6akN4jJr1bXE01T1CzmBuIxy/D4wHcaYKV5BvT9Jv
GwIDAQAB
-----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 365252598669212207179664398414947383308242
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-30 22:05:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-29 22:05:17 +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 'xrstf.de'
 . . . . . . . . [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 22072607043612058387926543408030575190950670472353693538098230845434806557538259617305089944412045051710940874256899174809944726629135814242311477356405773519893633789997922853817644682042461313641780980072540293024474640175368346248411950246157447843686467757184681326911447822506609311005986065558244200129717049966852969759491700852491269172091101789344687049149186690477342350163121262771923241594439392156193074932358941823169748904843775800255951182809298069836173412338454929247614632216258242593188463240111552066806731033681054431698214592561428184659384655528727758408189405253361146236973103395490644520731
 . . . . . . . . . . . . . . . . . . . . [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)
							8299d14bb522a4709ed57694076464773588bbc4
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (252 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'adminer.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'christoph-mewes.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'go.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'inbox.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'monitor.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'omnidb.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'post.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sdv.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sensors.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'syncthing.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wetter.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.christoph-mewes.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.xrstf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'xrstf.de'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d5c9eab8d000004030047304502200b6183002ac0583d4fdd3b35cb0435d7cf6932bd0f23bd3abc875fa34f3371f502210096c924d81f02b1e6a79956976fb161c2789a3440c05945603df798856cfb963e0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d5c9eab8900000403004730450220754dfb7cb9e847afef77ad4e226c125c77f24ea46e903f86252ae6dcd900bc7b0221009a6c8c93f9bb64ef9d8bee7bfdca2ca1d0c0b8d8591d8c54242f1d703dc7053a
 . . . . [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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