csplayground.com

Issued by R3

About this certificate

This digital certificate with serial number 04:fc:9a:7a:7c:81:5e:e6:47:28:b8:5a:7c:c0:59:49:35:a1 was issued on by Let's Encrypt.

With 2 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=csplayground.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:fc:9a:7a:7c:81:5e:e6:47:28:b8:5a:7c:c0:59:49:35:a1
Serial Number (int): 434405637287953691469711990124877865104801
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f7:38:d5:99:6a:35:a5:57:60:c9:88:3d:59:2c:3b:9a:13:91:c5:00
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0c:e4:0a:ac:73:97:07:e5:33:25:27:26:a7:2e:d5:65:9a:73:51:3f
Fingerprint (sha256): a4:28:50:eb:74:a5:5a:32:69:d3:6a:c4:29:63:d0:3e:75:98:f0:4d:2a:e6:ae:c0:6b:ed:36:4d:41:36:45:04

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

Revocation information

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

Check the revocation status for certificate csplayground.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for csplayground.com

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

csplayground.com
www.csplayground.com

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Certificate

The complete raw certificate details for csplayground.com 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 434405637287953691469711990124877865104801
 . . . . . . . . [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 2023-12-30 07:01:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-29 07:01:19 +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 'csplayground.com'
 . . . . . . . . [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 987481193439510802920555269280632781592858691119597099614362647111241754750896957540495896513016517483697484123507373230747058489211596348786876311942805152782139707220683896222459361591639345582916349109217305321628393780086839264892938631315508657290258094851427912037228562149748010156776096588742558005488736927248376865683983702806133455086772602270812157704530265229471483582310079245013247589451300133476535718450226759273336076083429189037027523287297766662937957647885194279065343375864184297175775869901090089329461578604344768657174783789607239966691485156480809877044412005184688369556282334866031867621335939941823497729530413925101603960441539883637368639829859760877566540816888442673260242541002962975882651820601714020932835145388742514702183876378971679689709726499124525554703302572413255806732081052149444734400439420168171209882275969288121239902985287563225441715408234367343597634817121108313756085961954857868787915910576208071264712533244225116603072630622459756678817522025842448059573182793644287496763485301690847499735210406625642564085106920216472952052292665847587913041251895622585119581951002486450777984656898659365099955191711981026564413316198262300831351194598344032223592232209663224755438805709
 . . . . . . . . . . . . . . . . . . . . [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)
							f738d5996a35a55760c9883d592c3b9a1391c500
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'csplayground.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.csplayground.com'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cb9bdeca50000040300483046022100f1609b21ba399eebb861f07c1b26f7ceaca77fa326f637fcd923c771bc42cc1002210082240179ef0bcbc1aebd03b8c50a593b5817ad5410e76928fc36d44154ae16b3007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018cb9bdecb40000040300483046022100f6cbb0bb8c51aec9e46b2d4d88e4a5f55e985dc58f0e95f2d66dae0a36b8934f022100d9edaa86a9ce720d43f102cf36294d2ad96b61b9950c992f0cc65868c2545b3c
 . . . . [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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