skr.de

Issued by R3

About this certificate

This digital certificate with serial number 04:1c:ac:ec:dd:97:e4:fd:df:27:5f:27:2f:f4:f2:b4:5a:e3 was issued on by Let's Encrypt.

With 3 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=skr.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:1c:ac:ec:dd:97:e4:fd:df:27:5f:27:2f:f4:f2:b4:5a:e3
Serial Number (int): 358206907092607727753888588076032535583459
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 95:08:cf:7c:25:37:8e:43:d4:bd:2a:be:11:d9:99:2b:64:91:fa:92
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a4:2e:89:77:1e:5c:be:e1:c2:9d:aa:6d:91:c3:2f:28:53:13:b7:fa
Fingerprint (sha256): 64:25:f6:eb:66:92:6d:5a:3a:af:1b:64:39:9e:b5:2a:85:51:23:43:5a:52:05:da:c5:35:07:57:15:3a:6a:5d

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

Revocation information

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

Check the revocation status for certificate skr.de

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for skr.de

Public Key Algorithm

ECDSA

Key Size

384

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

skr.de
wiki.skr.de
www.skr.de

Other certificates including the domain name skr.de

(limited to 100 certificates)
survey.mobinergy.com
survey.artyplan.com
feedback.zweihorn.org
vragenlijst.teambuildr.nl
survey.thesocialelement.agency
smkynb.skr.de
feedback.zweihorn.org
questionnaire.isabelle-mathieu.com
survey.slttours.co.uk
skr.de
service.skr.de
encuestas.heel.es
vragen.sp.nl
skr.de
survey.epsight.fr
survey.artyplan.com
www.skr.de
ankieta.quantumplanet.pl
skr.de
survey.skr.de
umfrage.samtoa.de
survey.ncauk.org
service.skr.de
rdp.skr.de
smkynb.skr.de
feedback.zweihorn.org
skr.de
umfrage.samtoa.de
service.skr.de
feedback.zweihorn.org
skr.de
survey.skr.de
feedback.zweihorn.org
umfragen.drholldorf.de
owa.skr.de
mail.skr.de
survey.hhm.nl
skr.de
skr.de
surveys.breakthroughcomms.co.uk
ankieta.quantumplanet.pl
survey.skr.de
skr.de
survey.contis.de
survey.accelapps.cz
skr.de
skr.de
survey.gotbit.io
survey.gravestonestories.co.uk
skr.de
encuestas.impargrupo.com
umfragen.advectum.de
survey.slttours.co.uk
feedback.cetas-healthcare.com
clientes.prosinergias.com
info.colegiomontessori.com
feedback.zweihorn.org
umfragen.advectum.de
skr.de
encuestas.mengual.com
mail.skr.de
meet.bastioncraft.com
umfrage.samtoa.de
ankieta.quantumplanet.pl
survey.generation-y.net
survey.diamondpigs.com
survey.avondata.co.uk
ankieta.quantumplanet.pl
survey.gotbit.io
owa.skr.de
survey.swiss-as.com
skr.de
feedback.topinsure.ie
survey.micheledicosmo.com
feedback.cetas-healthcare.com
feedback.zweihorn.org
survey.gravestonestories.co.uk
www.skr.de
survey.koffre.io
skr.de
skr.de
ankieta.quantumplanet.pl
ankieta.quantumplanet.pl
feedback.zweihorn.org
questionnaire.isabelle-mathieu.com
questionnaire.isabelle-mathieu.com
vragen.sp.nl
feedback.zweihorn.org
questionnaire.isabelle-mathieu.com
skr.de
ankieta.quantumplanet.pl
forms.bizzymaid.co.uk
skr.de
skr.de
survey.matrixbooking.com
survey.hrsmartsolutions.co.uk
feedback.cetas-healthcare.com
owa.skr.de
service.skr.de
mail.skr.de

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEvn+hMIkjT2iaFivRyekQkigXVvU8Nldo
nAa9WQQjcXiAnHm1bi0F5YaS5NAYRpuodLekQrjpn9NXYUGuM0B1Kqpc+3jTlnjl
hZI7pLxeXW5G4qdUZOWb+7gMHmKcpzKG
-----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 358206907092607727753888588076032535583459
 . . . . . . . . [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 2023-09-20 21:30:48 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-19 21:30:47 +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 'skr.de'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.132.0.34 (secp384r1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (776 bits)
				0004be7fa13089234f689a162bd1c9e91092281756f53c3657689c06bd5904237178809c79b56e2d05e58692e4d018469ba874b7a442b8e99fd3576141ae3340752aaa5cfb78d39678e585923ba4bc5e5d6e46e2a75464e59bfbb80c1e629ca73286
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							9508cf7c25378e43d4bd2abe11d9992b6491fa92
 . . . . . . . . . . . . . . . . [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 (35 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'skr.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wiki.skr.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.skr.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ab4b7a40e000004030047304502202881f6b97b7ab21d2f23929a39acc521c37cba382918c3e1f1ac69ac4f19a845022100f7a180a42a6c614a49f9058edc5e423481fd0a8c22b253a1b7d569ba6fe1d468007700e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018ab4b7a4160000040300483046022100fcfd393789e6b107e8193815801b3a21b60ae6fb12f58a2fb2ffe3619c7e38e8022100bba52f55dda9102babdb653676a524644a0619f3b87419c3cecc268001141b01
 . . . . [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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