school.rotier.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:10:53:9f:52:c9:fb:07:0c:ed:8d:5d:23:da:d8:4e:a6:3e 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=school.rotier.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:10:53:9f:52:c9:fb:07:0c:ed:8d:5d:23:da:d8:4e:a6:3eSerial Number (int): 266892528844026547836130108573316901938750
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 42:04:9b:fd:cf:97:f5:00:58:b0:b4:cf:39:10:20:db:5a:ed:ec:85
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 23:e9:bc:bc:94:b5:63:e1:4f:a4:aa:90:53:ea:25:c9:6b:a0:9c:42
Fingerprint (sha256): 42:f4:6a:92:14:8b:d2:6f:b7:4c:36:52:48:12:8c:b9:48:e6:31:aa:bd:e3:b1:2f:13:a4:22:06:f0:b3:c0:7b
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate school.rotier.jp
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for school.rotier.jp
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
school.rotier.jp
Other certificates including the domain name rotier.jp
(limited to 100 certificates)
school.rotier.jp
school.rotier.jp
www.rotier.jp
rotier.jp
school.rotier.jp
www.rotier.jp
school.rotier.jp
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www.rotier.jp
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www.rotier.jp
www.rotier.jp
school.rotier.jp
school.rotier.jp
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rotier.jp
school.rotier.jp
www.rotier.jp
school.rotier.jp
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rotier.jp
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www.rotier.jp
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school.rotier.jp
school.rotier.jp
school.rotier.jp
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school.rotier.jp
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www.rotier.jp
school.rotier.jp
school.rotier.jp
school.rotier.jp
school.rotier.jp
rotier.jp
school.rotier.jp
www.rotier.jp
Certificate
The complete raw certificate details for school.rotier.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFVzCCBD+gAwIBAgISAxBTn1LJ+wcM7Y1dI9rYTqY+MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MDgwMTUzMTZaFw0x OTEyMDcwMTUzMTZaMBsxGTAXBgNVBAMTEHNjaG9vbC5yb3RpZXIuanAwggEiMA0G CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDklFVokDTgl210HxdwWy0lqb3cZrBQ +A1vpJbHmfDou0rDzHSxQfJQGGIoN8iAsWBsZVB2f0X7d9acQHP/sycPPVx/VppU Sf63f17Bj9NJz2W5PsNwPYRwjfzxfgunAKnsU16te3LaT17+bwvCkK1HtVpD5k8G XJ4PGGnRQ0WsbzRszrQGq1zqTpU7wDKw1QB6RYZcspNxAtaHTypn2DLV4dtiTr+P yiuXA8l+86M5YdBRWMYoa57fIsz5dpR04OP5VOmOOBDfv+fkH2M22aGQTTqxQLGx BvrzRwnpoK0I1oytLO51FbH75J2doLOeAyloXgwE03hZC+pltBoAULLxAgMBAAGj ggJkMIICYDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsG AQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFEIEm/3Pl/UAWLC0zzkQINta 7eyFMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEB BGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0 Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0 Lm9yZy8wGwYDVR0RBBQwEoIQc2Nob29sLnJvdGllci5qcDBMBgNVHSAERTBDMAgG BmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3Bz LmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1ACk8UZZU yDlluqpQ/FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABbQ7KOScAAAQDAEYwRAIgW8/l QR9MuU1/f0vCrI/si8HxLtJUOiE+39P05pwON4ECICr9cFrnFTSWdccAdBcpUBdR hV6tr2kWLZYO1QUFH6t/AHYAb1N2rDHwMRnYmQCkURX/dxUcEdkCwQApBo2yCJo3 2RMAAAFtDso8cQAABAMARzBFAiAdJe0sXPg9/PkeJh6aVYr5F1sT+YEzgID4uI6K 7rGIXwIhAMS8WsCmXWKlj5r/d26mFlT9NqK+I1XdGjyd3wX3sJp7MA0GCSqGSIb3 DQEBCwUAA4IBAQCL33F9Z1DOtRYDA82cmhTQNr0IVzobbAh7xBFXl9VC2Un2gwli 9Fm+l98AvenOKJcr4gk/EEqO+hATn+2aPrpE56Q6LT8gCMH4eFiH4sgwg4n38BNf yEbysqti3tDsY9fZ0A5mOUXkLhdsiviAFCu1wJ9XwH0mnLKcLwmAkSj+fG1Ne32a wjgUNlxwnpJlRAqw2+MsDoCvGKrze2+58TF/6MUJsQlQdy9eVP6wesel2N0LMuzl t0soy29QgGbaW00ydu6gPg/EXOhah/7O7e3aP+jJtw0fZ8p+e1TaRUlSSvcwC09G Uf20QrKcOO5A12n4G74FzHcoGuQXvctjAhgn -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5JRVaJA04JdtdB8XcFst Jam93GawUPgNb6SWx5nw6LtKw8x0sUHyUBhiKDfIgLFgbGVQdn9F+3fWnEBz/7Mn Dz1cf1aaVEn+t39ewY/TSc9luT7DcD2EcI388X4LpwCp7FNerXty2k9e/m8LwpCt R7VaQ+ZPBlyeDxhp0UNFrG80bM60Bqtc6k6VO8AysNUAekWGXLKTcQLWh08qZ9gy 1eHbYk6/j8orlwPJfvOjOWHQUVjGKGue3yLM+XaUdODj+VTpjjgQ37/n5B9jNtmh kE06sUCxsQb680cJ6aCtCNaMrSzudRWx++SdnaCzngMpaF4MBNN4WQvqZbQaAFCy 8QIDAQAB -----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 266892528844026547836130108573316901938750 . . . . . . . . [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 2019-09-08 01:53:16 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-07 01:53:16 +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 'school.rotier.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 28855479569806600466681289229663305692734002324604572867772676118762791452591202451825383038642816745932254554110309093437975029639303370653358734609212529300858108722347263318029847217104276282979168835940225647930189210567614276745470301460425753301059636745538845043609971963815766232566587567714706023706468077964856779484842921305527190390439075050562207630075078430057255516249147756278257835068864418979421951514715786071664199342640370069835182254143382976363538525506328628089439854103095547026108246948079275701745508380029162800021928268697134953221964444233457646128974884046579933413931669768865714320113 . . . . . . . . . . . . . . . . . . . . [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) 42049bfdcf97f50058b0b4cf391020db5aedec85 . . . . . . . . . . . . . . . . [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 (20 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'school.rotier.jp' . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d0eca3927000004030046304402205bcfe5411f4cb94d7f7f4bc2ac8fec8bc1f12ed2543a213edfd3f4e69c0e378102202afd705ae715349675c700741729501751855eadaf69162d960ed505051fab7f0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016d0eca3c71000004030047304502201d25ed2c5cf83dfcf91e261e9a558af9175b13f981338080f8b88e8aeeb1885f022100c4bc5ac0a65d62a58f9aff776ea61654fd36a2be2355dd1a3c9ddf05f7b09a7b . . . . [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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