m.speak-up.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:5b:73:e0:5c:7e:3c:cc:e9:b7:51:5a:be:1a:9f:3e:71:ca 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=m.speak-up.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:5b:73:e0:5c:7e:3c:cc:e9:b7:51:5a:be:1a:9f:3e:71:caSerial Number (int): 292456579355080966079711990936410370503114
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 9c:f8:5e:d6:09:d7:e4:88:84:af:3e:59:c7:36:23:07:b6:eb:f4:65
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): ce:a7:24:ca:50:8b:b6:e3:ce:e7:da:f1:62:dc:66:43:e0:2d:e7:d9
Fingerprint (sha256): 3b:1a:2f:99:c8:00:9e:94:d6:a8:c0:fa:f6:f4:fe:59:b1:d2:54:74:44:8f:f6:a7:cd:29:c8:89:0b:bb:ad:70
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate m.speak-up.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for m.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
m.speak-up.edu.vn
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Certificate
The complete raw certificate details for m.speak-up.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFWDCCBECgAwIBAgISA1tz4Fx+PMzpt1FavhqfPnHKMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTUxNzA5MTBaFw0y MDAxMTMxNzA5MTBaMBwxGjAYBgNVBAMTEW0uc3BlYWstdXAuZWR1LnZuMIIBIjAN BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArxnSANG8ZFtXozpkK7a5kZdRuPkm RHozJhL8Tm6YuMcYJCzTEBLQTgQeTJMrbKbZ72Ny3Ikd6Pz/a/scQUIsqN/J3bSQ 9mhkwFpK1V1HU7mraw0pe1b3Jnw8P3NWzLpdScbXdxkSjiQ2Pl8fYC5LFXYZA6Jo eIChDFrnqgUQShwSzV7CCy7SFf4yvmH3RcME26/sy0q+i62cAJ5gK5LS4jzkRcYj 3zFOSGBkkJZdLltA9zu1TrvXu8Sm7MjYKa88xt35AKx5SHeOzaZJrgkYQfpcBv2f EXBcMPCvHtjfMYjcYiHxI9Y5FNKNoMJJ4cENZsG7OKG8VEsTjB0+bUmOvQIDAQAB o4ICZDCCAmAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggr BgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSc+F7WCdfkiISvPlnHNiMH tuv0ZTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcB AQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlw dC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlw dC5vcmcvMBwGA1UdEQQVMBOCEW0uc3BlYWstdXAuZWR1LnZuMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUAXqdz +d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFt0JwLGwAABAMARjBEAiB8 XLcVY5oRsEesAFh5K1x5a5XnedzTP7Pn1uwWzWwgHwIgf+70MyjxSHeJ/Yo4wXVW hHsRpNJwOw9k9qfxfppIzZoAdQApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTl RUf0eAAAAW3QnAsIAAAEAwBGMEQCIDZ0+4LkYOO3ELJAGci0mYFNz2cXPBpttK+G SuC0cih0AiBL/4EOrid2pRFAYYtITUJ0dcOt22t5NvKdg1+LnxX8wDANBgkqhkiG 9w0BAQsFAAOCAQEAXi9zZmvIBtbVWq7FndnMm1O7iVCehfbHgGKETO+39oWxLsCu xrOIP7s5MoYQgw87Q0Rere8N/waNgXflvJoTFovZI1MbOPdvyhgXEUMhGzGAboUW 6MGXrtuIuPXwyXvdoh4AUM2KrIbC5ULdD2SVxTJxGMLfLQmtJB0KuXamXo5a3zGc sFLMiadTbpAs5016w6wgdQViToFEKA7FAB02QbDxqnZFbJP9tWQ6a1nO8i0lq5By VFWQsJ6/jbKpxpppvNbKUJOHQ1+bz0dsV1HpxaUPPqMRwlYy0Qa4qApgWKipPFB2 xmxAMWCSNT8jcZiunGqvi3gekVcQAC1u3XtG8g== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArxnSANG8ZFtXozpkK7a5 kZdRuPkmRHozJhL8Tm6YuMcYJCzTEBLQTgQeTJMrbKbZ72Ny3Ikd6Pz/a/scQUIs qN/J3bSQ9mhkwFpK1V1HU7mraw0pe1b3Jnw8P3NWzLpdScbXdxkSjiQ2Pl8fYC5L FXYZA6JoeIChDFrnqgUQShwSzV7CCy7SFf4yvmH3RcME26/sy0q+i62cAJ5gK5LS 4jzkRcYj3zFOSGBkkJZdLltA9zu1TrvXu8Sm7MjYKa88xt35AKx5SHeOzaZJrgkY QfpcBv2fEXBcMPCvHtjfMYjcYiHxI9Y5FNKNoMJJ4cENZsG7OKG8VEsTjB0+bUmO vQIDAQAB -----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 292456579355080966079711990936410370503114 . . . . . . . . [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 2019-10-15 17:09:10 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-13 17:09:10 +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 'm.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 22104435845864276670544408389614135745245934068423148494070765368965114653301163041473944788978153103866349810390488213100903901096562596074711332464402363061370684859392248564662516205760826228964700774539120110154467433663743657496403861220571910053651080490216072905528100008547269997456429106320094090717599242541824758174082504637896674209730317249256466649736030490141162427937349039453288123311716284046447813115302079726325927517370198867628154704492732662305180809786410197537877837648759011728236358969910285222127370236211547287823787556794783369438624172345929678132190110137474309183010627238014334111421 . . . . . . . . . . . . . . . . . . . . [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) 9cf85ed609d7e48884af3e59c7362307b6ebf465 . . . . . . . . . . . . . . . . [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 (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'm.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dd09c0b1b000004030046304402207c5cb715639a11b047ac0058792b5c796b95e779dcd33fb3e7d6ec16cd6c201f02207feef43328f1487789fd8a38c17556847b11a4d2703b0f64f6a7f17e9a48cd9a007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dd09c0b08000004030046304402203674fb82e460e3b710b24019c8b499814dcf67173c1a6db4af864ae0b472287402204bff810eae2776a51140618b484d427475c3addb6b7936f29d835f8b9f15fcc0 . . . . [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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