wdc.co.th

Issued by R3

About this certificate

This digital certificate with serial number 04:8e:d1:61:0b:52:ad:80:6f:f1:b3:57:23:fd:60:28:40:0c 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:
  • 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=wdc.co.th

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:8e:d1:61:0b:52:ad:80:6f:f1:b3:57:23:fd:60:28:40:0c
Serial Number (int): 397047552363385484838194976872219909046284
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: bd:02:24:b9:db:4d:75:d8:f1:19:17:2b:cb:3a:66:63:4f:78:13:20
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e4:4a:70:c5:62:4b:0a:9e:cc:24:ce:7b:58:04:3c:9e:f3:8f:a6:72
Fingerprint (sha256): 9c:30:d9:4f:71:1c:e8:ef:a1:d0:34:7f:63:4a:9b:80:77:b6:ca:76:21:7e:f8:d7:0a:cb:d8:d7:cc:ac:4e:cd

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

Revocation information

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

Check the revocation status for certificate wdc.co.th

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for wdc.co.th

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

wdc.co.th

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mail.wdc.co.th

Certificate

The complete raw certificate details for wdc.co.th in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1es4yC+R8ZmNQ5nql3Lv
kMPfAa/DvDe1HklGjpYDRTeX1nmI2z+HT54saBhwzO5C33tnNc+UtSu2vULP7NhV
NaySw5CGnODcKEQImV1loW7cVol/feSomgiZyGr2Ra3fUiCOxfr118KK8iM2c1Bg
TSjlWLA3vPCP+SWKU6bNgmNw8gxLQMKTohIUmforffawqMdudbhZNyLZuMw2AjmP
hlG5aa7fgUP1DkLTayNJuGVlRTtEz/uotZFzvaiMSRyxI55s6NFU/NFEk7yuQrPa
uo3uyfNBflSeuAM8fcfQasfWxTRQtb5KYcIsfzxpyaA4o19g1Uxqo5bQA8SfWr4n
CQIDAQAB
-----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 397047552363385484838194976872219909046284
 . . . . . . . . [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 2023-12-26 16:53:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-25 16:53:29 +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 'wdc.co.th'
 . . . . . . . . [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 27004751152703706920885078104871843166251141702142434113549234335307825372766577096061949410862564670123664580311414339445376005157305892818732958058627718313957585406248386192401204363316888152194938120747410848655352963658604534010832522195596322726899428571226877687718996429770875116040036512205536904548028278685469753931058161693903257538005838746038038668798451672545768950864827681075927919472524118667344557707774231722047985221072318336179752240907196361519180111067980076350539660842291593195198517154947147799976524439453231499546606684781756463176076220742324236410150967649220993046609935721336319911689
 . . . . . . . . . . . . . . . . . . . . [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)
							bd0224b9db4d75d8f119172bcb3a66634f781320
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wdc.co.th'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ca742a128000004030046304402206a141a273664a45feaa17d4799a47b1ceeba7a3d8f496e12c2f0e12e349194fd022047af9bcea05c00104abb2a529014093e847bd3ea26e991ebd544cdfd164144a200760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018ca742a1780000040300473045022047207f040db95f4c4a3acc0ddeab03d082c7e4e21cd5a5064eb173871ccbe4010221008e0ae14962e23ba8eb37b216ffdddc17c4c3c6908cb454eb38614e8ce2456fad
 . . . . [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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