school.rotier.jp

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b5:60:e1:e4:e4:f5:c5:94:4b:20:a5:9b:52:91:6d:76:c6 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:b5:60:e1:e4:e4:f5:c5:94:4b:20:a5:9b:52:91:6d:76:c6
Serial Number (int): 323056745004888597458679604274690331080390
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 76:64:84:17:ec:4e:20:09:45:7d:38:2b:0d:11:cb:b3:18:f3:65:96
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 12:f0:1c:3d:6d:34:1b:d2:26:f1:c7:2e:b4:12:94:92:b8:74:0c:15
Fingerprint (sha256): bd:2f:48:ab:bb:62:e4:63:c3:c7:c1:b8:74:6c:2a:34:ef:ee:63:f5:d4:35:75:76:7e:59:b6:31:d9:cf:95:8b

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check 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
school.rotier.jp
school.rotier.jp
school.rotier.jp
school.rotier.jp
school.rotier.jp
www.rotier.jp
school.rotier.jp
www.rotier.jp
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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwMsj+Rwaek58KT/DfWF/
mBR4ps8VQSCVP5iYK5wRuGqqLIa2ymOds4GocjBh/v+jUYR29VJ6le4EhL5wRTml
w0FYoNuau04n/pm2Bv3OboHf7vq6+aaTz0DXjLHvKq5VMcv0CzeFKdDUy5DJtaB+
WjD7wk0nqLhwML8r6PrgUvOVtVgNyEb77qGGvmpMUJBTHCC+RHEyNi28dDI62at2
ScYTYLQsUQ1qxCvLhonSKulLGI9IsSXYW55hlMcP69I+XdfK2BmxVUEwnYPHZeFN
wfTk40X301tXzNzcEq2r2whNIP66wXf1qqRV7LV3HKmCzO9L565N7Fa+rMqL2IlX
MwIDAQAB
-----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 323056745004888597458679604274690331080390
 . . . . . . . . [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 2020-01-06 04:33:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-05 04:33:09 +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 24337926877301619623950481477474724581309454132537954981992355989932537031140500575716135271581024394214039896424311274667551051817778194546754837098189473795151344366180779614941463683768871899092476364888670374005818060326045102992733227740315294725384216119313415594956791442278459861478089639728040732870913085570632680886569697393711435992411819934057630858360852324638646181650072303201756663248250137815147999057616455280327475942820185142162258068327366105643870536758489445099667314403506804755410083965419169741304443709716499614248199994693579666836100938766143068403861383988610961213370488024568882091827
 . . . . . . . . . . . . . . . . . . . . [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)
							76648417ec4e2009457d382b0d11cbb318f36596
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f7957b843000004030046304402204fb4512d41b7fb93ecaf5f0b1048a6e0ebf979ced3d16b6c935476749bfcd59d02206ae5597612dee0407673f48d972f22d7a13c5b348a744f6496bf516791afd5a3007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f7957b83b00000403004830460221009c53bb444e273c735bae1d1ef1bc74c2fd999b85a3765503c26ff290cd8193d8022100b67613857f55fd65bc9967d669f12e466058a550e307aa5c666a165ca0a4f4ae
 . . . . [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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