promotion.speak-up.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:60:82:13:0e:a1:9f:45:b7:bd:e9:eb:ee:38:0c:ce:04:7e was issued on by Let's Encrypt.
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=promotion.speak-up.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:60:82:13:0e:a1:9f:45:b7:bd:e9:eb:ee:38:0c:ce:04:7eSerial Number (int): 294176863609541944673617546204507867579518
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: aa:86:a2:38:d5:da:de:34:cf:5a:c8:32:ad:38:59:b9:cb:18:3f:4f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 73:0f:c5:0c:c7:d0:5b:ef:fe:97:4c:ad:5f:e1:df:19:7a:3f:a5:60
Fingerprint (sha256): b3:a6:bd:9c:5f:a9:1a:86:98:61:c9:fe:c7:94:f5:7d:64:51:43:2b:9d:03:f7:24:69:9b:d2:0d:e1:90:26:7b
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate promotion.speak-up.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for promotion.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
promotion.speak-up.edu.vn
Other certificates including the domain name speak-up.edu.vn
(limited to 100 certificates)
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speak-up.edu.vn
Certificate
The complete raw certificate details for promotion.speak-up.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFajCCBFKgAwIBAgISA2CCEw6hn0W3venr7jgMzgR+MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMjQwMzA5MTVaFw0y MDAxMjIwMzA5MTVaMCQxIjAgBgNVBAMTGXByb21vdGlvbi5zcGVhay11cC5lZHUu dm4wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCh36DWfBY/E3TIz/Iu i5dcAd0DXObB6jBuITTXLq7Jvd7WOjWxNeIjMfs+jwTDNrUZzGuMBFB8rSs1+KKu r1NFJKl/i/ZN292Kb4qFND7Nok6m7Gf9Jg5zfpAkwa5FM6ziY452WRAqBMDzJ6ku V7tA73XlJHJ4HZvMnRUb/PXFr4w7Ay0tvSBNz+q82FIeq74WWZ5KdFXgqlhYQZtu /JgoIk3+X8PhCWBtZHpYVXXC0KUnujxHo0vopbYWnypz1pvw83Z9nMp2/MrtwA4U KpAFT3TDAT5m6rRvRztuG1eTDmpjsBMmIQtG8j4R6GEETJJtdl/PA5IHUSVnntJO 6NvbAgMBAAGjggJuMIICajAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFKqGojjV2t40 z1rIMq04WbnLGD9PMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wJAYDVR0RBB0wG4IZcHJvbW90aW9uLnNwZWFrLXVwLmVk dS52bjBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkC BAIEgfUEgfIA8AB2ALIeBcyLos2KIE6HZvkruYolIGdr2vpw57JJUy3vi5BeAAAB bfv0UfoAAAQDAEcwRQIgOsnq9EWLbAbq9pSzrXaaWpsV0IpUA5nMpie37+A6kj8C IQCO5wHK/1m4wNTkrlrsuFwApLKV+dx64HPgeDSU+U0RawB2AG9Tdqwx8DEZ2JkA pFEV/3cVHBHZAsEAKQaNsgiaN9kTAAABbfv0Uw8AAAQDAEcwRQIgEmco44Hl0JP+ wjnC/9XoWsxWI4c41sJ6DFV4e21w+noCIQDgVVxjNdMtyy/s5j9jP6aEtkVM4eYF DmtH5V4lhIYCjjANBgkqhkiG9w0BAQsFAAOCAQEAToeM+ZozJV3z41GMLyxm0noY 3i/Y4yAiJwS2eY6C+8G4z/VbMUHgbrM/bK3zUemrtzS74OU0blLEkkcbiMjShfFp du438C/4IeTNNp0k1vOw69ceWy4Qq8bFAQkvuYt/7i2SA6cDmRdq/2XadPl4A+Wt 0y0OjRmz/x5ofQLzzibDybEg79NwALiULe3Y1Y4aA6GrYci6mKCGO2KwUqSUypbR 7eT4BiuhWKPMXl7B6vEzz0NwK2QlhnodX20lUErjCpqUOUrrsg9EzB1jO9GyTNsT OXSJOkqc1/SA7NgLGcAFR1X6kycmTvdlHEl8agdeHhxmazNJ5rkM28EPLYQuoQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAod+g1nwWPxN0yM/yLouX XAHdA1zmweowbiE01y6uyb3e1jo1sTXiIzH7Po8Ewza1GcxrjARQfK0rNfiirq9T RSSpf4v2Tdvdim+KhTQ+zaJOpuxn/SYOc36QJMGuRTOs4mOOdlkQKgTA8yepLle7 QO915SRyeB2bzJ0VG/z1xa+MOwMtLb0gTc/qvNhSHqu+FlmeSnRV4KpYWEGbbvyY KCJN/l/D4QlgbWR6WFV1wtClJ7o8R6NL6KW2Fp8qc9ab8PN2fZzKdvzK7cAOFCqQ BU90wwE+Zuq0b0c7bhtXkw5qY7ATJiELRvI+EehhBEySbXZfzwOSB1ElZ57STujb 2wIDAQAB -----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 294176863609541944673617546204507867579518 . . . . . . . . [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 2019-10-24 03:09:15 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-22 03:09:15 +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 'promotion.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 20434642310855195063799456849221125501776962437536273267644786168611222199555235829656696450606637795823761855127966919775005264471244559110351311772048874575188306929468104164330142467149926805697146446660153979858551315234546575245581232949703486725336174589451499936836561813437323053860412117854103279559528311916119989720282667066406193951237201479663454446246213791779007942635339028674249522349958192956487124299798080898049941041821248289210014623498643911938780755895620361433397552224594822678111902428061908907711575779976131210192156005115941214594083817879691504285098201416457888910734525589889974066139 . . . . . . . . . . . . . . . . . . . . [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) aa86a238d5dade34cf5ac832ad3859b9cb183f4f . . . . . . . . . . . . . . . . [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 (29 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'promotion.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dfbf451fa000004030047304502203ac9eaf4458b6c06eaf694b3ad769a5a9b15d08a540399cca627b7efe03a923f0221008ee701caff59b8c0d4e4ae5aecb85c00a4b295f9dc7ae073e0783494f94d116b0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016dfbf4530f00000403004730450220126728e381e5d093fec239c2ffd5e85acc56238738d6c27a0c55787b6d70fa7a022100e0555c6335d32dcb2fece63f633fa684b6454ce1e6050e6b47e55e258486028e . . . . [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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