www.speak-up.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:2b:8d:26:bc:59:b6:b4:9b:85:e9:de:cf:cb:29:4b:1f:31 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=www.speak-up.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:2b:8d:26:bc:59:b6:b4:9b:85:e9:de:cf:cb:29:4b:1f:31Serial Number (int): 276156621847768247893481782707117592616753
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: d4:12:69:7e:ea:94:3f:9e:af:08:f8:c7:e9:59:0b:a6:bd:0e:6f:64
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): f5:8c:bc:95:eb:61:35:b9:29:57:88:d7:29:2d:dc:bd:e3:03:88:83
Fingerprint (sha256): 1a:42:c1:0e:55:07:f1:42:f9:02:bd:46:f3:4c:89:c9:28:53:0f:5b:b5:2f:30:6e:20:03:f5:4e:02:26:ef:de
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.speak-up.edu.vn
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.speak-up.edu.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
speak-up.edu.vn
www.speak-up.edu.vn
www.speak-up.edu.vn
Other certificates including the domain name speak-up.edu.vn
(limited to 100 certificates)
placement.speak-up.edu.vn
promotion.speak-up.edu.vn
sz2.speak-up.edu.vn
speak-up.edu.vn
www.speak-up.edu.vn
api-szo.speak-up.edu.vn
wizapi.speak-up.edu.vn
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cantho.speak-up.edu.vn
hoctienganh.speak-up.edu.vn
wizadmin.speak-up.edu.vn
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emailhoctienganh.speak-up.edu.vn
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bloghoctienganh.speak-up.edu.vn
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api-szo.speak-up.edu.vn
sz.speak-up.edu.vn
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promotion.speak-up.edu.vn
sz2.speak-up.edu.vn
api-szo.speak-up.edu.vn
cantho.speak-up.edu.vn
speak-up.edu.vn
Certificate
The complete raw certificate details for www.speak-up.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFcDCCBFigAwIBAgISAyuNJrxZtrSbhenez8spSx8xMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMTYwNTIyMzRaFw0y MDAzMTUwNTIyMzRaMB4xHDAaBgNVBAMTE3d3dy5zcGVhay11cC5lZHUudm4wggEi MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDRk+FiNiGLNb6UhGK3JeSYQPwC ikHUkZkE6atuNAYjpSMcNqm0+3vMs91A7WXFr+kqbKtZJiB+PN5lmuojXrVUG4X/ 8EMdRe2xdWlk6q2DwHlo+XLuUC51S4YvyPm4lsiaDfICwrZPdsZ0aF24NRTbBBFC ZvKY1Xy/6eHX6Q5A73sHmmeenXv/VTmDph98Ui5rEhee6pwH5+FM4KWgUfs3DW3Z qrPhO9Lyh2JkSsAZPXRNsCA2bvOcB76KYw8WtxCDKzI1u6Kpd98wNwrvjFOiVXO+ jHOWlWuKw3hi9F5+V2xWlPCp9vWL0otb+lZEVwqBsxoT4/aFOdkoroDv9NibAgMB AAGjggJ6MIICdjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEG CCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFNQSaX7qlD+erwj4x+lZ C6a9Dm9kMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUF BwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNy eXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNy eXB0Lm9yZy8wLwYDVR0RBCgwJoIPc3BlYWstdXAuZWR1LnZughN3d3cuc3BlYWst dXAuZWR1LnZuMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgw JgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBQYKKwYB BAHWeQIEAgSB9gSB8wDxAHYAXqdz+d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFx RVgAAAFvDV9qewAABAMARzBFAiEAuGYXaVb/GpvTbPBpswPuKX03OSyw6VqBkvjg au8NqvYCIESOm9jpPS2e0aWMo5+yBxQXlaV7sqhaLDZeRfj8iSGIAHcAB7dcG+V9 aP/xsMYdIxXHuuZXfFeUt2ruvGE6GmnTohwAAAFvDV9qnAAABAMASDBGAiEAkStx eJg+BSuNvqqX1IuOlesqVApRYQ2svcnyOs/sAB0CIQCUb+yqUSxMxUVbEEJ62z18 mAEY3sd6B8LARIuUSgClgTANBgkqhkiG9w0BAQsFAAOCAQEAHmVlYlbdYfib7h9u e3LyirLecWzZiQlJ6jiPAWDy7M/cXJwepvjySII2vj3nrJHp3NxYnWtModHyJ8Uj C7nLweZxjQUaR7RG1WslCewWvsSBYWvcuXEe/Nx7rAqkvjdN0TprMOakdLJnFgh5 3KHdIgBr5SIZApEjNDtn31QoooQ7hJk9+XTPbpwEkJagXxSx509MSg5f205pFKTq xiwtBd+trpA8niAwLZCnD0jV67XhyCjyK1/S8s8YB4i1sYdCVK90lWGn8efQFc/J Tl4mZxSadfEMPlApOFK0+2QXxM3Fp1AqECpjykuJCM0R+MLHPAB5WNemlHdkJRld ibw0JQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0ZPhYjYhizW+lIRityXk mED8AopB1JGZBOmrbjQGI6UjHDaptPt7zLPdQO1lxa/pKmyrWSYgfjzeZZrqI161 VBuF//BDHUXtsXVpZOqtg8B5aPly7lAudUuGL8j5uJbImg3yAsK2T3bGdGhduDUU 2wQRQmbymNV8v+nh1+kOQO97B5pnnp17/1U5g6YffFIuaxIXnuqcB+fhTOCloFH7 Nw1t2aqz4TvS8odiZErAGT10TbAgNm7znAe+imMPFrcQgysyNbuiqXffMDcK74xT olVzvoxzlpVrisN4YvRefldsVpTwqfb1i9KLW/pWRFcKgbMaE+P2hTnZKK6A7/TY mwIDAQAB -----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 276156621847768247893481782707117592616753 . . . . . . . . [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 2019-12-16 05:22:34 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-15 05:22:34 +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 'www.speak-up.edu.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 26456728283392256015763744311718610961114220663753731138569115924002347926649050916729411404051411851505906845895577743683624975542632692470460048258110882816317597613251683557450479162090475838329242797478189215624672672936596367268050986733067774537364141951197607019086388603782490631000314216634156516433658583155925341576864250983524811483948691284050899420434479908620888752266499119139125688344311634318885983001331182271530273242607367388187362190853910293021468037827854830561417692457570594902445422032479208496544225485486633101926217221575500201775079088456013203022139534496536578519858591738227236067483 . . . . . . . . . . . . . . . . . . . . [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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:3|t:20|false] . . . . . . . . . . . . . . . . [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 (40 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'speak-up.edu.vn' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.speak-up.edu.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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f0d5f6a7b0000040300473045022100b866176956ff1a9bd36cf069b303ee297d37392cb0e95a8192f8e06aef0daaf60220448e9bd8e93d2d9ed1a58ca39fb207141795a57bb2a85a2c365e45f8fc89218800770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f0d5f6a9c0000040300483046022100912b7178983e052b8dbeaa97d48b8e95eb2a540a51610dacbdc9f23acfec001d022100946fecaa512c4cc5455b10427adb3d7c980118dec77a07c2c0448b944a00a581 . . . . [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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