preview-blog.configcat.com

Issued by R3

About this certificate

This digital certificate with serial number 03:9e:bd:3d:c0:3d:7b:2b:da:63:60:55:e3:01:53:5c:51:58 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=preview-blog.configcat.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:9e:bd:3d:c0:3d:7b:2b:da:63:60:55:e3:01:53:5c:51:58
Serial Number (int): 315353016489194418377367223872947916394840
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b6:41:09:48:0c:1b:58:8b:51:26:53:b9:7e:d9:e3:a8:e6:0e:50:da
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 50:5c:dc:b8:50:0a:67:5e:bc:23:4b:7b:12:1a:11:95:aa:f7:c8:bf
Fingerprint (sha256): 38:48:d2:ad:f2:f6:10:2c:5e:fd:73:bc:86:3d:6c:34:06:6b:a7:01:db:a3:c8:22:df:c9:cd:67:bd:98:f8:db

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

Revocation information

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

Check the revocation status for certificate preview-blog.configcat.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for preview-blog.configcat.com

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

preview-blog.configcat.com

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preview-blog.configcat.com

Certificate

The complete raw certificate details for preview-blog.configcat.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA384D6aWIdx4KGVgM0hJv
1NrJluwftR965shJqss35pD9kEoqsf/d236zaySfILsV7erVAeLUG5ceepri6B+b
NqIOLHoYZT6PxfAxwxFTa/PuHYppAsgK2RUKbDZ8ulCnNofm0gzCrIEBsuU0pSQ9
tQ8TgQ38/KxKPVquVPYa2ETgtI4F8T6Kf61vEcqHZGcZ9iRoKNgxMeWlyS1lUCXA
Y+MCRXCbyDcNOYBXJpveO028KzAiPICctfEhQQQ+RazfJ2oy+O+VTOggd1M+NQOE
OgymWzHKFajqg3qUnp7xxypbIXGJaa2aW7rF6sGcnfcTfYWTP3A1DG77Ldzv1ZJV
oQIDAQAB
-----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 315353016489194418377367223872947916394840
 . . . . . . . . [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 2022-10-31 11:33:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-01-29 11:33:42 +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 'preview-blog.configcat.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 28252731930237533994425854088254203951231458743756459697171634621276224902237278155550950332056046175908256859217395909150905506731738444832664885958837978152945300763003268760912907988061763169359608426944810579220950198859384225958191408267543576659621194720176917434129458935106467354390264760920606452248040401618449991929477374205405595134631833255788019318089604659818723565494114010109079702170358854104472512819817839084977680397850966155979316232262481755903797057564047143225470237219517871459083677983622014464578491847137290678590213785225839896657925054721442002942137988931800390382319218967092252530081
 . . . . . . . . . . . . . . . . . . . . [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)
							b64109480c1b588b512653b97ed9e3a8e60e50da
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'preview-blog.configcat.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 (69 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001842e088f55000004030046304402203322db3eca9b30ca9c2116f3e9711d301ffa8a79d38b6d60cfd6128ad6aa6e6a0220244287b6b081123c7c7eb45bf99926490b3e019c9e128593e3545896fd87c877007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a000001842e0891550000040300473045022100e1a96f4eb8eb26d050c117fe3b33c557a0fc2e05044a1a58a3fc7270d8d4670d0220142141292080b476f79ec83546ac058dfa7cb21fce0e7c2baf09c593f5c9bcf6
 . . . . [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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