learnvietnamese.com.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:91:e4:1b:d2:40:b0:a0:7d:2a:04:ba:08:e1:5f:77:61:4d 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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=learnvietnamese.com.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:91:e4:1b:d2:40:b0:a0:7d:2a:04:ba:08:e1:5f:77:61:4dSerial Number (int): 398093295370062487596747270332842279133517
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 6e:cc:b1:5d:86:03:da:9c:09:b8:7e:99:f5:e2:bd:86:fe:73:17:85
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): d4:9b:cf:39:a8:06:12:38:ce:0e:8e:eb:fd:3e:dc:0b:cc:43:2b:65
Fingerprint (sha256): 34:de:2b:3a:9f:7d:0f:b0:fb:83:c8:62:ff:02:cc:f5:66:f9:37:c1:64:19:be:8c:59:74:5a:1a:ea:c1:19:79
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate learnvietnamese.com.vn
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for learnvietnamese.com.vn
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
learnvietnamese.com.vn
www.learnvietnamese.com.vn
www.learnvietnamese.com.vn
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Certificate
The complete raw certificate details for learnvietnamese.com.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFgDCCBGigAwIBAgISBJHkG9JAsKB9KgS6COFfd2FNMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMzAxNjEzMDlaFw0x OTA2MjgxNjEzMDlaMCExHzAdBgNVBAMTFmxlYXJudmlldG5hbWVzZS5jb20udm4w ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDbHRsPUPn0yes8uKlYDkK2 K3dn3QFaIuWZAkY+PBIKWoV5ERMNNCRetp42CQNgAcHNJuDX6bLmeeuMD2AfUqQT R61J2RqAaCXxZDp9YOdLHVf26SSjbckrwEW12wAUQuEdx6AI49nWXhf6g4jpoKEy 4iqRbcRtFELfrcjikmqrxkOrCdPvQ3hqi96AwUYUPBnH6cA1RshjmnOy1bUQPI9k XPCKX9pBr3zJyHDkUX87Yq5Ehl5RwJilOTfD6LSKzpjyaKzIPLRstdFwCZM/FXjx 8lcEK/NYpwZTy1ZpwvkPgDvusRMHuqSWlF1QeulM1SR///Je8ppMHzBIW4dJgxSh AgMBAAGjggKHMIICgzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFG7MsV2GA9qcCbh+ mfXivYb+cxeFMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wPQYDVR0RBDYwNIIWbGVhcm52aWV0bmFtZXNlLmNvbS52boIa d3d3LmxlYXJudmlldG5hbWVzZS5jb20udm4wTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdwB0ftqDMa0zEJEhnM4l T0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWnPlz4gAAAEAwBIMEYCIQDmzwn0laUXdY+t ZXkXQdaw4vzi/p4eQD0x9RSPqp+F+AIhAM6J2Yvnv3pTye2koM+/tpWXdXWc/iHW PnMhM0wInfL+AHUAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFp z5c+GwAABAMARjBEAiAMQPkIlhVIaNID6m7+XJeR/4NJxji5BBAVlSMh8XUWhwIg BS7WDXTy6VKsCiI+WA/7CssPnswTaRWRnsTaVovqgoowDQYJKoZIhvcNAQELBQAD ggEBADYq7Zg5iVs5JYsSOswk9KcEm1eOIxip9Pq8rn7gSfhJATiDV8e97Dq6pP5U dxRjDeZyQ1fl8EKJXrUVRg3ah2MR4/OjvVttNWDXqOo6xS3tgAGUcDbn0U94qXZ8 RKE2mYcQidmhrn8NHKMUB1QaS18RBj6e1+rKSeWb9XaJ6kAiXSMsmMiZ7Q/RlSpL EjTZ214aFM5nm6M4BXLBGFD3EWSlcmkvO9e1FDZ9yqMFKfL+cQhMAA5xhy5dEdN9 h4p9ozB4v2Ba1ispK9r0HKs/WavKs7S7HRmRo/rYjkZKXZAHWmeQvvIA9hwQklMZ 01ro7f9Y/CiIidt2+a1WQLtFxYM= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2x0bD1D59MnrPLipWA5C tit3Z90BWiLlmQJGPjwSClqFeRETDTQkXraeNgkDYAHBzSbg1+my5nnrjA9gH1Kk E0etSdkagGgl8WQ6fWDnSx1X9ukko23JK8BFtdsAFELhHcegCOPZ1l4X+oOI6aCh MuIqkW3EbRRC363I4pJqq8ZDqwnT70N4aovegMFGFDwZx+nANUbIY5pzstW1EDyP ZFzwil/aQa98ychw5FF/O2KuRIZeUcCYpTk3w+i0is6Y8misyDy0bLXRcAmTPxV4 8fJXBCvzWKcGU8tWacL5D4A77rETB7qklpRdUHrpTNUkf//yXvKaTB8wSFuHSYMU 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 398093295370062487596747270332842279133517 . . . . . . . . [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 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-30 16:13:09 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-28 16:13:09 +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 'learnvietnamese.com.vn' . . . . . . . . [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 27660541344376195661649855294089980997609862594054683353572462286920023930799929210308266572993762268290939144265904081154807566809865101763186702129072679377958774247534868760997829130800246548307195547057121111742807567363101241477646292365412239547521675707132920573373768869208956955329286961328397249091058081660375358164215456922000800524020904171838250858017388687585364520851729922666783862071759579859143354501165043226467093245312051275180461281033159344099019518006711548876691720712837951946814396328103095847025648667762668397602398835313304579126028702780887447904456369446947634408839887701220050277537 . . . . . . . . . . . . . . . . . . . . [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) 6eccb15d8603da9c09b87e99f5e2bd86fe731785 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (54 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learnvietnamese.com.vn' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.learnvietnamese.com.vn' . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000169cf973e200000040300483046022100e6cf09f495a517758fad65791741d6b0e2fce2fe9e1e403d31f5148faa9f85f8022100ce89d98be7bf7a53c9eda4a0cfbfb6959775759cfe21d63e7321334c089df2fe007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169cf973e1b000004030046304402200c40f90896154868d203ea6efe5c9791ff8349c638b9041015952321f17516870220052ed60d74f2e952ac0a223e580ffb0acb0f9ecc136915919ec4da568bea828a . . . . [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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