sz.speak-up.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:0a:33:f6:f7:07:0f:61:a0:3c:eb:32:e6:3d:82:e2:8f:a4 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=sz.speak-up.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:0a:33:f6:f7:07:0f:61:a0:3c:eb:32:e6:3d:82:e2:8f:a4Serial Number (int): 264808754407616884388836814882339066908580
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 00:a5:bd:cc:b6:4c:84:63:14:a1:62:2b:3f:e7:cf:c9:d2:38:9a:fc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 92:c2:16:ce:9d:13:bd:9b:0d:12:0e:5d:b1:1a:4b:5d:fe:b9:bd:c7
Fingerprint (sha256): 7c:97:eb:03:e2:6a:66:f5:c4:55:d7:fa:73:cb:c3:58:e0:c3:2f:8f:8d:45:f6:25:ff:3c:6c:2d:ac:46:73:14
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate sz.speak-up.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for sz.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
sz.speak-up.edu.vn
Other certificates including the domain name speak-up.edu.vn
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speak-up.edu.vn
Certificate
The complete raw certificate details for sz.speak-up.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFXDCCBESgAwIBAgISAwoz9vcHD2GgPOsy5j2C4o+kMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MDQwNDIwMDRaFw0x OTEwMDIwNDIwMDRaMB0xGzAZBgNVBAMTEnN6LnNwZWFrLXVwLmVkdS52bjCCASIw DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMBl7WuA9m1MdKOXSGPSOPuGYXKs mGFnd3LJ1Jc8ZnxT5dOnGBwwwu7ZJmVzdHrA/K7iPTXZ2ilR64S9V7ThXy+VjQ2B NwIhvsNj3L5K3Cjb0OYRtcVr2DtWuCm7ErgPpZ7pOL9LJ09Hk3RhJRH4CtH5r4Ek YcaP1v6uk8AJ1rTewWOSeJmpwMH1l1fXxH7WgVmmVrEH7Y67jAayn+1ZwSTKqBye gYo0zxeG5GrDc3VoTGfgGI9giuB2CU6uEYAWqmaCvH2W+YYHVuboNdqqq3WCah8B zCLk49o/t+DJTFrgzYA4aE6favfctoO8jAmBPN+V6nyKwdGOfINY8y6mb1UCAwEA AaOCAmcwggJjMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYI KwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUAKW9zLZMhGMUoWIrP+fP ydI4mvwwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUH AQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5 cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5 cHQub3JnLzAdBgNVHREEFjAUghJzei5zcGVhay11cC5lZHUudm4wTAYDVR0gBEUw QzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDov L2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdQB0 ftqDMa0zEJEhnM4lT0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWu7bObMAAAEAwBGMEQC IC7VZteAwrBjaU8FA2gkSQ2rGnj0uC+elMB5iRJNVXkiAiB1PrV9W7lQn1I3bRY0 6FjyXvs3wnT/ycQJzOg2KE6jDQB3AGPy283oO8wszwtyhCdXazOkjWF3j711pjix x2hUS9iNAAABa7ts5uoAAAQDAEgwRgIhAPGlzFkg8WzbcV4ujtn/gef+OX4BbsK+ XiwB9UOdmEyAAiEAv2H4HBwtOE4u+O3wlO7ofcH83lND0QX1zbETVVq9ppMwDQYJ KoZIhvcNAQELBQADggEBACSyCcxErJpkYEhLlGkc9yCmzyDBJrz8KHVnTQu5OBqF aAuUEPVzLr5xP21YaDRoYFZOnR6pr8pqyFEFPhrumMc5k43QoM0Vn/dKx9Bca3eI ++WF+7hHEJXBLyAHp+iFrt5D22an5QBZcgWyI8+n8oRaWZhra1fWwAYHR3bIT1zX kKmR6Gx0vuB0G3aX+1GtMZxs+eb65kSe0etHUx92QKqcfpWj+pXjYk9gLDtO7NBw dQYwT/2xcPZ8q/AG8JgzltsowDBE+k2QKEENXu4HB0jJj5DfvNzE05IlXAf+Hbtk 22BHyqqxeIYV/Hi9vaON4qNozTWrk6dOeKFPWh6YrGY= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwGXta4D2bUx0o5dIY9I4 +4ZhcqyYYWd3csnUlzxmfFPl06cYHDDC7tkmZXN0esD8ruI9NdnaKVHrhL1XtOFf L5WNDYE3AiG+w2PcvkrcKNvQ5hG1xWvYO1a4KbsSuA+lnuk4v0snT0eTdGElEfgK 0fmvgSRhxo/W/q6TwAnWtN7BY5J4manAwfWXV9fEftaBWaZWsQftjruMBrKf7VnB JMqoHJ6BijTPF4bkasNzdWhMZ+AYj2CK4HYJTq4RgBaqZoK8fZb5hgdW5ug12qqr dYJqHwHMIuTj2j+34MlMWuDNgDhoTp9q99y2g7yMCYE835XqfIrB0Y58g1jzLqZv 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 264808754407616884388836814882339066908580 . . . . . . . . [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 2019-07-04 04:20:04 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-02 04:20:04 +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 'sz.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 24288016838388640273141040747203133896479116273613947813769456765469483740059316542917531180424469122016709266220940088285430290491505472022158490117397736079334250882622746180693443983095404702978034097480276649046762137676960908020790524992510082298371908903050105942499624966101456771288636399748315506421916987787390899340677106046263206941455053494246111082290049718395792752141181027566947262686564614906416401733901397088354240897908104865035210252623053993051206300535522291850117534938714023496027914943962694293510737299382228227447499970538157968684371654981703001416945726062613598017846665539916378042197 . . . . . . . . . . . . . . . . . . . . [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) 00a5bdccb64c846314a1622b3fe7cfc9d2389afc . . . . . . . . . . . . . . . . [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 (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sz.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) 00f0007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016bbb6ce6cc000004030046304402202ed566d780c2b063694f05036824490dab1a78f4b82f9e94c07989124d5579220220753eb57d5bb9509f52376d1634e858f25efb37c274ffc9c409cce836284ea30d00770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016bbb6ce6ea0000040300483046022100f1a5cc5920f16cdb715e2e8ed9ff81e7fe397e016ec2be5e2c01f5439d984c80022100bf61f81c1c2d384e2ef8edf094eee87dc1fcde5343d105f5cdb113555abda693 . . . . [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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