www.xrstf.de

Issued by Let's Encrypt Authority X1

About this certificate

This digital certificate with serial number 01:b9:e0:ed:17:44:16:aa:dc:13:6a:03:93:41:59:7a:0c:0e 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:b9:e0:ed:17:44:16:aa:dc:13:6a:03:93:41:59:7a:0c:0e
Serial Number (int): 150363501929435107458869168652186279349262
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: f6:93:3b:cb:b6:51:05:5c:8b:14:25:70:57:88:b4:e2:fb:54:fd:e9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 08:6d:e5:71:60:e8:2a:5a:ba:d2:04:e9:62:1f:9d:e9:f7:5e:66:bd
Fingerprint (sha256): b6:24:ec:b1:0a:b2:54:32:3a:73:69:9c:5d:10:84:7a:92:29:68:55:90:76:70:77:af:a1:f7:dc:83:b6:67:0b

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 150363501929435107458869168652186279349262
 . . . . . . . . [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 2015-11-07 15:15:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-02-05 15:15:00 +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 926749383691306681372403282058371506914933671857693793175457434120778037809345803215904220966377230637522541605989854578575887674139527774585914822818758299659061433647041969063716241212846310177620651834352930960861293233357612248888327924905912410675733099215975351958566637149642990839595690626553371163402499879030725422175008781768269533917250300003459157455304276674681200208281197395260503734092601678726350797188091941359778892769542092323231233644153826089686924736166774076499867974380384449138536573088362534362391810594115530511482553273324127316561694001461921275487392059985992411201837591102408299809059652810222255102920152336612493217558921579081869575114884569378992454323416802448203192092445145851374338773492719629548288540658954140552895181418816915529526054796257080415161115553326133406351995438256825429732252199543708276089747660865463149875224228738999948867964450735734313221142589631887319073449904973338467173658349036104133581603571908586497539660913300376934425182501943072682730759241327275826335578611875207083945432771922224631554829329323424255836170453149958869426127504950578177740427648257939077174773008993833454992023318971342336617905527732492607742304455000594617764574811069663538821456983
 . . . . . . . . . . . . . . . . . . . . [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)
							f6933bcbb651055c8b1425705788b4e2fb54fde9
 . . . . . . . . . . . . . . . . [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 (248 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: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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