www.at-learn.co.jp

Issued by COMODO SSL CA

About this certificate


This digital certificate with serial number 3c:6c:ae:e1:08:e4:a6:f0:10:d6:25:65:b4:23:b4:7b was issued on by COMODO CA Limited .

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. While the 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.

www.at-learn.co.jp

Organization unit: Domain Control Validated
Organization unit: Hosted by Comodo Japan Inc
Organization unit: COMODO SSL

COMODO CA Limited

Organization: COMODO CA Limited

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 3c:6c:ae:e1:08:e4:a6:f0:10:d6:25:65:b4:23:b4:7b
Serial Number (int): 80317994776176618364950270910885246075
Serial Number lenght: 126 bits, 16 octets

SubjectKeyId: fb:11:2d:83:ec:03:ac:4c:35:ab:90:3c:62:d5:84:c6:ed:f4:7a:73
AuthorityKeyId: 1b:6b:bd:1f:8a:49:18:94:54:37:55:b4:20:17:ed:37:b9:77:18:7d

Fingerprint (sha1): ad:cb:bb:71:30:00:0a:00:52:5b:8d:9e:ac:e7:09:c3:89:13:ac:39
Fingerprint (sha256): 2c:3e:5f:cd:27:4c:91:1a:fa:db:2d:7e:2e:14:3d:5a:6e:20:37:2a:0d:18:77:36:ed:54:05:d2:a3:63:b0:76

Issuing Certificate URL: http://crt.comodoca.com/COMODOSSLCA.crt

Revocation information

OCSP Server: http://ocsp.comodoca.com
CRL Distribution Point: http://crl.comodoca.com/COMODOSSLCA.crl

Check the revocation status for the current certificate on www.at-learn.co.jp
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 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

www.at-learn.co.jp
at-learn.co.jp

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFHDCCBASgAwIBAgIQPGyu4QjkpvAQ1iVltCO0ezANBgkqhkiG9w0BAQUFADBw MQswCQYDVQQGEwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYD VQQHEwdTYWxmb3JkMRowGAYDVQQKExFDT01PRE8gQ0EgTGltaXRlZDEWMBQGA1UE AxMNQ09NT0RPIFNTTCBDQTAeFw0xMzA5MzAwMDAwMDBaFw0xNTAyMjIyMzU5NTla MHoxITAfBgNVBAsTGERvbWFpbiBDb250cm9sIFZhbGlkYXRlZDEjMCEGA1UECxMa SG9zdGVkIGJ5IENvbW9kbyBKYXBhbiBJbmMxEzARBgNVBAsTCkNPTU9ETyBTU0wx GzAZBgNVBAMTEnd3dy5hdC1sZWFybi5jby5qcDCCASIwDQYJKoZIhvcNAQEBBQAD ggEPADCCAQoCggEBANCpsmBZdiXqI1ESD8ivGbqo7ocYflQijF5JEpiSTxyKvpHe rft5bu2ljm+TU0w2SoBGUEPhvdYfBE0DVMlinTSFVIPmyS1YxVqFaPpa9pAbfP7O Oe4LPsAdqghh+TiIDnXMpSKaZgeJ6Rekf7IxgmQVkTuUsYoPxcZHEUSuzjLf5r0p pNJ11r7CptBwlHSlXXu5XEQ8Tamr0yiwBxMHMty+eUhcwWt3hIJi6W+yiy/iiZ2T 9xLNLxPIpEMvxfSvygwTrO7PaQNWcPu9q9IuDU6N4u4LIS4c0YJVeUDKxdw4GF62 dwdkQnYJPFpbVv6W9/ug7/PgNd0MLfL2oG2qXd8CAwEAAaOCAaYwggGiMB8GA1Ud IwQYMBaAFBtrvR+KSRiUVDdVtCAX7Te5dxh9MB0GA1UdDgQWBBT7ES2D7AOsTDWr kDxi1YTG7fR6czAOBgNVHQ8BAf8EBAMCBaAwDAYDVR0TAQH/BAIwADAdBgNVHSUE FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwTwYDVR0gBEgwRjA6BgsrBgEEAbIxAQIC BzArMCkGCCsGAQUFBwIBFh1odHRwczovL3NlY3VyZS5jb21vZG8uY29tL0NQUzAI BgZngQwBAgEwOAYDVR0fBDEwLzAtoCugKYYnaHR0cDovL2NybC5jb21vZG9jYS5j b20vQ09NT0RPU1NMQ0EuY3JsMGkGCCsGAQUFBwEBBF0wWzAzBggrBgEFBQcwAoYn aHR0cDovL2NydC5jb21vZG9jYS5jb20vQ09NT0RPU1NMQ0EuY3J0MCQGCCsGAQUF BzABhhhodHRwOi8vb2NzcC5jb21vZG9jYS5jb20wLQYDVR0RBCYwJIISd3d3LmF0 LWxlYXJuLmNvLmpwgg5hdC1sZWFybi5jby5qcDANBgkqhkiG9w0BAQUFAAOCAQEA A5t6/WVBF6L01OvRAUTr3niEts/74EiJkeGVHe6iK5uUaFuzGISEa/V3I4slchkO gNf0sHZ2OcVGh++pGabHRA0JqQNUyIvjEGnVHZ19m/X2SjZV+PZAJfMEq7gopsyG L5M+fIxZF7F37yDTnykunk3lzJdADIuOHfZ+c02UDz//VbetxmKhRUXn3ETMlwKo nmCDFuBJ1vc2Yu6SCrR5XRutaIWeSUn4fyhm6sQmynes1I7/BoN9w/Fs6dNpTKE1 EKRi8mB+utIqInnIyo4jEzzGJmH/n5BZdbCXGj+VTx1R13vMdUiy6khxGI1CvcTP SmAvyCex8xDAVhI/gBwvIg== -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0KmyYFl2JeojURIPyK8Z uqjuhxh+VCKMXkkSmJJPHIq+kd6t+3lu7aWOb5NTTDZKgEZQQ+G91h8ETQNUyWKd NIVUg+bJLVjFWoVo+lr2kBt8/s457gs+wB2qCGH5OIgOdcylIppmB4npF6R/sjGC ZBWRO5Sxig/FxkcRRK7OMt/mvSmk0nXWvsKm0HCUdKVde7lcRDxNqavTKLAHEwcy 3L55SFzBa3eEgmLpb7KLL+KJnZP3Es0vE8ikQy/F9K/KDBOs7s9pA1Zw+72r0i4N To3i7gshLhzRglV5QMrF3DgYXrZ3B2RCdgk8WltW/pb3+6Dv8+A13Qwt8vagbapd 3wIDAQAB -----END PUBLIC KEY-----

ASN1 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 80317994776176618364950270910885246075 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [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 'GB' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Greater Manchester' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Salford' . . . . . . . . . . . . [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 'COMODO CA Limited' . . . . . . . . . . . . [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 'COMODO SSL CA' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-09-30 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-02-22 23:59:59 +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 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Domain Control Validated' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Hosted by Comodo Japan Inc' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'COMODO SSL' . . . . . . . . . . . . [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.at-learn.co.jp' . . . . . . . . [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 26341248035296525213491134237475310419869582042822160116878384443777900834069356759043365782394864129639051488586831591767549175296234343094624582531106686384049668900663380715718798233337328460147939876775335513645091717263188811324098837918576065137315355502447820736371282283169416976550126176410820813680588896392002367648071115049220318804564695330851757032167302510403273336998916036515568138297439948039196145221744350103345077491299018239553063972909889517509363614510213350865169760935002220535243279796026765576362166452808323028485713509817062165835606715428291271980550577172959978048638293473416046075359 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 1b6bbd1f8a491894543755b42017ed37b977187d . . . . . . . . . . . . . . . . [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) fb112d83ec03ac4c35ab903c62d584c6edf47a73 . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.37 (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 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (72 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://secure.comodo.com/CPS' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (49 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl.comodoca.com/COMODOSSLCA.crl' . . . . . . . . . . . . . . . . [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 (93 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crt.comodoca.com/COMODOSSLCA.crt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.comodoca.com' . . . . . . . . . . . . . . . . [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 (38 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.at-learn.co.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'at-learn.co.jp' . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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