www.xrstf.de

Issued by Let's Encrypt Authority X1

About this certificate

This digital certificate with serial number 01:e3:a4:f8:13:37:aa:42:ac:72:5d:d1:1f:51:be:f6:ff:76 was issued on by Let's Encrypt.

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.xrstf.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 01:e3:a4:f8:13:37:aa:42:ac:72:5d:d1:1f:51:be:f6:ff:76
Serial Number (int): 164575664693518945156014759257304586452854
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: 99:29:4b:1a:e7:03:b9:ff:a0:54:33:a4:a6:c0:1c:aa:e7:0c:ef:e7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 6d:44:df:23:e0:7b:03:8f:a7:45:ad:dd:cd:ed:ce:26:87:87:57:f8
Fingerprint (sha256): c8:b5:4f:53:1d:f9:84:d7:1a:c5:57:f8:01:90:be:72:3e:91:a9:6f:50:74:35:75:86:61:7d:7e:2d:64:cb:05

Issuing Certificate URL: http://cert.int-x1.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x1.letsencrypt.org/

Check the revocation status for certificate www.xrstf.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.xrstf.de

Public Key Algorithm

RSA

Key Size

4096

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

www.xrstf.de

Other certificates including the domain name xrstf.de

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 164575664693518945156014759257304586452854
 . . . . . . . . [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 X1'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-12-03 20:27:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-03-02 20:27:00 +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 'www.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 640037248851076911131529531014820883967203263235429968076103617346060538105006335648744206274447041061535866106181990450479799068228096431753761728768491301045719688229487177621997085387254513078308790509466819261604728762040903547851133962483964788075479919185763231649210582125101554473580287455188991059402189966599161190189197679737407888512767494939898862245467769458635244845461240029416205155594675332036411532515653968529250954268405380345118351279559968195056366322254738728941679722122327950576584856940267871196635412491018121641115456203284057614340678516939152186526520156917009661636183953560704935283344716408313670700259843653525999705865302844705908448634704463395043982483135341626616510440957962148658665509088514742741785690981819550810400135884721994929949481823852174194040343942247705658435909668311219303232375756912868537924678484734541120328407689504665757480361582181495753445230900734486765546004409223538159241953087124999695424969517232005476747942701163041139686031014223209034375249792600961119768973074479456188932875601744047577174232646094685026801920792884265414597571943358556877046876389064437771720071491900358381011762775054675026531278230130897176639322033870201620039420490921964221745090719
 . . . . . . . . . . . . . . . . . . . . [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)
							99294b1ae703b9ffa05433a4a6c01caae70cefe7
 . . . . . . . . . . . . . . . . [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-x1.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-x1.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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (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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