thachai.ac.th

Issued by R3

About this certificate

This digital certificate with serial number 04:3d:18:9d:df:8d:a3:55:ba:d4:1c:2f:85:5b:de:d7:12:e4 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=thachai.ac.th

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:3d:18:9d:df:8d:a3:55:ba:d4:1c:2f:85:5b:de:d7:12:e4
Serial Number (int): 369239089305922923033051048897414677598948
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a0:18:35:57:d9:a3:f6:2e:0d:73:8b:a4:9c:ac:7f:f8:fd:9a:82:bc
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 42:91:54:65:63:27:02:79:2a:48:8b:71:2e:f2:0c:83:00:48:19:ef
Fingerprint (sha256): 69:46:4f:da:83:ba:ea:a4:49:d9:e0:75:1c:13:d4:2b:8e:22:b0:75:5a:b5:83:21:f0:e4:cd:71:a4:b7:13:43

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

Revocation information

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

Check the revocation status for certificate thachai.ac.th

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for thachai.ac.th

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

thachai.ac.th
www.thachai.ac.th

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Certificate

The complete raw certificate details for thachai.ac.th in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEvq5PGiT5JbY72r4/7qmF3G91Y+dmJDh+
dPHkJMw9wHPRzG1OQpqwkupzMvU+S5ndHw0E9qzAcudx3DV3m6yrG4dOMMIQlZmi
YPd8ldYQ1WaULiY0QGE4SaB76k3Dptvf
-----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 369239089305922923033051048897414677598948
 . . . . . . . . [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 2024-04-11 16:26:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-10 16:26:10 +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 'thachai.ac.th'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.132.0.34 (secp384r1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (776 bits)
				0004beae4f1a24f925b63bdabe3feea985dc6f7563e76624387e74f1e424cc3dc073d1cc6d4e429ab092ea7332f53e4b99dd1f0d04f6acc072e771dc35779bacab1b874e30c2109599a260f77c95d610d566942e263440613849a07bea4dc3a6dbdf
 . . . . . . . . [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)
							a0183557d9a3f62e0d738ba49cac7ff8fd9a82bc
 . . . . . . . . . . . . . . . . [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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'thachai.ac.th'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.thachai.ac.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ece32105c0000040300473045022100e444ef4cf98beda52db1b45a28ecae4826ff9b739a32d8a9f2fe3e76f1763b250220256f6ec52f5234335f8a75edcceb897470bb4cb911d6183600fb88319ce0cd250076001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018ece321065000004030047304502210092def515bc0db20a1f4d05cd83acabf9eb7a6956b8206ec7e8e6360a9e3644f4022019255781ab6b1935f630ad6a321bdb5029dcb4cfe2a29e132a55625fe98cc058
 . . . . [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)
		005d645753fed2ffa2c7894a23e79594d2433ac9a196ed969d3bf8aa7e4afcda0ceb9ca48f59ba89f20806f1b59aaf3231d8d36438c790cacb57ed025e51a26b1342774464dffa07b511399f459394e1e0dcf03d9c17955526ee204cc8af7317ea6accdea64d93ab2c41ad816b73a1a96faf569228e5fb3d4e9b2ba859bf9a86c4308c460d48f183b78a1b3a7b206f85eb4d8b673eafa404c305cf677b54f6135afd2380576d3fb2dc1c61faaad40eeb5109dc405caa7564b41eb313f8cec377324be30397b7be1c1376c1b9ce75637d1ca859104aadcc11fb95ed3cf41b6689869ccc8e9c208aa4a78c6215443ce275435daf4b0cd298f7a05dbec5d19e51d6bf