learnvietnamese.com.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:13:3f:72:29:77:81:11:90:66:cb:05:75:69:5d:20:1d:ba 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): 04:13:3f:72:29:77:81:11:90:66:cb:05:75:69:5d:20:1d:baSerial Number (int): 354998842825162029951481109047551199288762
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 4e:2f:82:32:09:10:c3:99:25:4d:e5:56:ec:9f:08:26:64:96:53:a5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): eb:27:9c:da:5f:dc:1e:6c:09:7d:a0:c7:9b:14:7d:f2:5e:aa:c4:dc
Fingerprint (sha256): 5b:d5:14:5c:1f:87:f6:83:ea:12:fc:53:c9:f1:98:8e:88:54:95:a9:45:af:cb:b6:0f:58:28:bb:b8:fc:b3:dc
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----- MIIFfzCCBGegAwIBAgISBBM/cil3gRGQZssFdWldIB26MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODExMjgxNjEzMTVaFw0x OTAyMjYxNjEzMTVaMCExHzAdBgNVBAMTFmxlYXJudmlldG5hbWVzZS5jb20udm4w ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDExo0DaB25FUQad+dkoGm9 MnRmR65ai5uzsaSfP5dRfN//c8WuDApis2Jb+0ZAcC/JTIYXmWBoTDaut2jslcD8 t9FWW9OLiDxn68EIyvkCivBqhDnAnOVBq/w8P1TfHByqlYjl8X6roERgw8yag1Gw TS3CIz++koJkMOBCPkvKQnRqVfZ2bU4FIPIgOMeLP7QJIyyzHwYy1Y4YcFItUG9N TH55Bsiq6D5YBEpOV7VjxY6i0UYZ+/XkwH7kZLA+1zQKafS5cF6QYJnTRSR6GD8b M9pSqNq2iZ6j/qKoSHQB+HWp7lTyFtLWupBnFyZAmSAkxlST7jJwn+CpCnaL940x AgMBAAGjggKGMIICgjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFE4vgjIJEMOZJU3l VuyfCCZkllOlMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wPQYDVR0RBDYwNIIWbGVhcm52aWV0bmFtZXNlLmNvbS52boIa d3d3LmxlYXJudmlldG5hbWVzZS5jb20udm4wTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdgB0ftqDMa0zEJEhnM4l T0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWdbT31SAAAEAwBHMEUCIQDb+hpV8etxwEwE cqqUQWEoLLVDpBMBY5cbPET8GbQsdQIgCWEGsEUwFusly0/wanPvfDxUQpHE8uAt 2NJFEcoR7+gAdQApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAWdb T30rAAAEAwBGMEQCIH5P1e+4+3vRqCo47FltTVMQ4GQZDJRDL2a/Q3LwzQCSAiBy KzW3/lQFAR0KpGUgM57DSR4LvdFo5r9+ZlzD8oOg8jANBgkqhkiG9w0BAQsFAAOC AQEALpVyE5FBRHy2kfbFOkEyvGZwVO0rsDQcO5bTugD4kw6jrlQLV0rXVtX4NUCg sEKqkW4/BzwhD3REZFQ/cvU04ggLBdrKeBiuf3cq47+6kDFvidAfDr7KxnlhZdsu eSzDGUnLlQ+FVLZytKtlceuLI/ui509SWvpKD8/KMoO/A+VyLSHU+v7tYBAfSUyQ HwehRHakXgNzYW17pEit7lWWDdzrmmyem7gJQFv1x1meIh5dfy2b+9fjzBi+aWtE YMxiw5h7IQ1b1Ff6ijQro9vF0Hr6fvWQLOxuupOaQiy08jM1f1/bPO+0R6FPDgo2 cz2ynqeQHK4jf6OElZ9K7fA5dQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxMaNA2gduRVEGnfnZKBp vTJ0ZkeuWoubs7Gknz+XUXzf/3PFrgwKYrNiW/tGQHAvyUyGF5lgaEw2rrdo7JXA /LfRVlvTi4g8Z+vBCMr5AorwaoQ5wJzlQav8PD9U3xwcqpWI5fF+q6BEYMPMmoNR sE0twiM/vpKCZDDgQj5LykJ0alX2dm1OBSDyIDjHiz+0CSMssx8GMtWOGHBSLVBv TUx+eQbIqug+WARKTle1Y8WOotFGGfv15MB+5GSwPtc0Cmn0uXBekGCZ00Ukehg/ GzPaUqjatomeo/6iqEh0Afh1qe5U8hbS1rqQZxcmQJkgJMZUk+4ycJ/gqQp2i/eN MQIDAQAB -----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 354998842825162029951481109047551199288762 . . . . . . . . [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 2018-11-28 16:13:15 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-26 16:13:15 +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 24840616838335098587169728694937708616648645828951633133527208821587926445805548778288519874853581367633101670457762991803079537175661907319890725255207270878327529396983674907172430716021428775653855969272792318896996623043717135013224805665813364573313757667989110541985629904049034028554383703495381431478296212179696091513583627483607802495396982615668645120046901036921635508477923576429472863748985849079666777631207071447715819876829469736962356299254923075138860173138840165485670664099186598134432410614653836633163083806312403692804850424340298939648695346018226674460708780887255621774635687650106273140017 . . . . . . . . . . . . . . . . . . . . [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) 4e2f82320910c399254de556ec9f0826649653a5 . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc56000001675b4f7d520000040300473045022100dbfa1a55f1eb71c04c0472aa944161282cb543a4130163971b3c44fc19b42c750220096106b0453016eb25cb4ff06a73ef7c3c544291c4f2e02dd8d24511ca11efe8007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001675b4f7d2b000004030046304402207e4fd5efb8fb7bd1a82a38ec596d4d5310e064190c94432f66bf4372f0cd00920220722b35b7fe5405011d0aa46520339ec3491e0bbdd168e6bf7e665cc3f283a0f2 . . . . [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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