learnvietnamese.com.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:8a:62:3b:f3:86:95:f1:07:8a:0f:7f:82:3d:47:89:8b:5b 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): 04:8a:62:3b:f3:86:95:f1:07:8a:0f:7f:82:3d:47:89:8b:5bSerial Number (int): 395538685990520581972272524841185358482267
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: ac:25:ca:de:01:8e:51:3c:b6:81:f2:6c:98:fb:37:b5:2e:cd:52:91
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 79:87:c8:9e:eb:9b:36:ff:68:71:d0:0e:a9:13:c0:1a:d4:d5:e4:6a
Fingerprint (sha256): 2a:fd:27:f6:a0:20:ab:6a:47:c8:ae:21:63:6b:c7:f6:00:0e:7b:6e:3e:c8:81:48:90:67:9a:c1:1a:a3:8f:9b
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----- MIIFgDCCBGigAwIBAgISBIpiO/OGlfEHig9/gj1HiYtbMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMTExNjE1MDZaFw0y MDA1MTExNjE1MDZaMCExHzAdBgNVBAMTFmxlYXJudmlldG5hbWVzZS5jb20udm4w ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDMsDYxM04jsk8VltJiEn6E pBv+kwRvpXmnx7uHGyjDR4fW9KrmwcTrd4Z34yNcp/0zV18P+aO8ixPT52YocQ/e hrkO8YcPz4fyjvEge4vcpnX8FmTve+Dt46+dKUQkoWi1lXyBKYbT6Aqv7zSWP6pv +X2ZtxD2AKwuGcHxCVUSDwpM0yzfrFGxaKkBBWG7pGg3LkSpDBGCmtX78peNynnn ldg3eqL2N6ymxrFDgVNyUMd3FAMsOV5UrHhGQjl2ZUf5Q7zvwxughQcxDeVzmn8D jDOGbxNfp2X5An56v5mtQRSxJgpUSUtrIWYbNoAPCUdlIIx3Y1++C6KqIh1oTK4j AgMBAAGjggKHMIICgzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFKwlyt4BjlE8toHy bJj7N7UuzVKRMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wPQYDVR0RBDYwNIIWbGVhcm52aWV0bmFtZXNlLmNvbS52boIa d3d3LmxlYXJudmlldG5hbWVzZS5jb20udm4wTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdgDnEvKwN34aYvuOyQxh hPHqezfLVh0RJlvz4PNL8kFUbgAAAXA1P1PFAAAEAwBHMEUCIQDgECu6bOQyRLC2 2j8oVByyLdvH7JWKXw96efiEfx7b2wIgFEk7j7P+Hh8oD/oSTy4HbYHmEN7foXDT 2EQj4oE6FXAAdgCyHgXMi6LNiiBOh2b5K7mKJSBna9r6cOeySVMt74uQXgAAAXA1 P1O7AAAEAwBHMEUCIQCcn7Ybvoej2ni9vBhL73+ofOFYDs9BUp07MqkHO+TZSAIg UHwRT22d/cBYyMJuN6hOVueKiUPsVio4SF5Qz+7dwv0wDQYJKoZIhvcNAQELBQAD ggEBADbaUcQM2oRr59Ixy2qrQyNDA093DRphyn4QzM3qE5W6QwC2Jtrg57UehoDq 0H4xisfZOdQuMkqPM8poqo4wB4BVyzriMl2i+1efK+IPW+wurY4f+sVIsiHo14me 8pTuu1DBIDkKeQfOHk4WoUs+M+6WTYpbG8KOoP+6wXcMzLkexCrOedVNIIz7oydU r2BhGHRfRcvY3N3U7aJ6YxOrbx0WH5jnR3JCWcHDX92Z13FXDGbM/w+vZrFUG4+3 qyTk6MFj09RhoVYY2UWg20DoBO+o8xi6K68yrA5tVJRGb7gvgbbEFoZwc5ktj5AR QVBzO345MBwZHdpqe6TFdu442Vk= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzLA2MTNOI7JPFZbSYhJ+ hKQb/pMEb6V5p8e7hxsow0eH1vSq5sHE63eGd+MjXKf9M1dfD/mjvIsT0+dmKHEP 3oa5DvGHD8+H8o7xIHuL3KZ1/BZk73vg7eOvnSlEJKFotZV8gSmG0+gKr+80lj+q b/l9mbcQ9gCsLhnB8QlVEg8KTNMs36xRsWipAQVhu6RoNy5EqQwRgprV+/KXjcp5 55XYN3qi9jespsaxQ4FTclDHdxQDLDleVKx4RkI5dmVH+UO878MboIUHMQ3lc5p/ A4wzhm8TX6dl+QJ+er+ZrUEUsSYKVElLayFmGzaADwlHZSCMd2NfvguiqiIdaEyu IwIDAQAB -----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 395538685990520581972272524841185358482267 . . . . . . . . [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 2020-02-11 16:15:06 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-11 16:15:06 +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 25839507435101194583414446753524953936759233798427088633503379990885588188001909639704938564244524967355495016195451779992900790935844227131649476965646491034965204003610034016655596454044029202066996320958069023910571768895848065076635968697058263187917537475739864506138781247112354352144369159667290080982095886033422004399860452336684003287543021974101659646004475312769414273407264920875027328872470170029614581234490086349376380905324354419215694304837020497659838346554766127472927151196960905927843188715537264993595658899997234571029510286324100253114883683822669870824572334475178096791668565323847595503139 . . . . . . . . . . . . . . . . . . . . [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) ac25cade018e513cb681f26c98fb37b52ecd5291 . . . . . . . . . . . . . . . . [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) 00f0007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170353f53c50000040300473045022100e0102bba6ce43244b0b6da3f28541cb22ddbc7ec958a5f0f7a79f8847f1edbdb022014493b8fb3fe1e1f280ffa124f2e076d81e610dedfa170d3d84423e2813a1570007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170353f53bb00000403004730450221009c9fb61bbe87a3da78bdbc184bef7fa87ce1580ecf41529d3b32a9073be4d9480220507c114f6d9dfdc058c8c26e37a84e56e78a8943ec562a38485e50cfeeddc2fd . . . . [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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