www.alc-education.co.jp

Issued by Amazon

About this certificate

This digital certificate with serial number 0b:39:7c:d5:19:60:7b:81:80:ee:95:60:04:b5:07:8d was issued on by Amazon.

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=www.alc-education.co.jp

Amazon

Organization: Amazon
Organization unit: Server CA 1B
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 0b:39:7c:d5:19:60:7b:81:80:ee:95:60:04:b5:07:8d
Serial Number (int): 14920000776813793486419129752595269517
Serial Number lenght: 124 bits, 16 octets

SubjectKeyId: a4:3d:e5:4f:d7:e4:7d:9d:e4:85:bb:b3:c7:74:e6:7b:b8:8c:5e:eb
AuthorityKeyId: 59:a4:66:06:52:a0:7b:95:92:3c:a3:94:07:27:96:74:5b:f9:3d:d0

Fingerprint (sha1): 31:c8:dc:4c:6f:26:d1:67:4a:7b:a4:46:be:e2:fc:7f:bf:8d:14:35
Fingerprint (sha256): 4d:17:a2:37:2c:ce:de:d0:60:19:56:ca:8c:52:e4:1b:06:15:92:15:f7:18:7e:7e:44:07:4a:c0:a6:a2:9d:31

Issuing Certificate URL: http://crt.sca1b.amazontrust.com/sca1b.crt

Revocation information

OCSP Server: http://ocsp.sca1b.amazontrust.com
CRL Distribution Point: http://crl.sca1b.amazontrust.com/sca1b.crl

Check the revocation status for certificate www.alc-education.co.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.alc-education.co.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

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

www.alc-education.co.jp

Other certificates including the domain name alc-education.co.jp

(limited to 100 certificates)
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp
www.alc-education.co.jp

Certificate

The complete raw certificate details for www.alc-education.co.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzsuNLZBTt0BS2VrU0HW8
WbZwD9RNezEuTyM2PW0JSa5t1kCVhJ8wxlJ4oLWROjHbftjQMvX5CvA+G5MbIt6b
OFQ1eikO7erWVWHCnUUgzRpkb8S1MKJjMawF/gcAdztmGxJR3xQl2QYmSq4I1lQB
sds97yLcmGQxl9AmL2TC1MUwaGRquk6TwBcgqWAevf0j+QZeRnY0rpHxnO/iTfWX
jOPZPkCkxdyOr0cnqLwLwR2GqIAbhpLKyTGStUpiY/nr0NY0yV262i3GRgz9sZ7x
aiCrFskB4A/QpqMOuaX8Z6iFeu92IOrI91HlSxpUdbz8fA5kayinA0YpRAnWma3i
yQIDAQAB
-----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 14920000776813793486419129752595269517
 . . . . . . . . [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 'Amazon'
 . . . . . . . . . . . . [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 'Server CA 1B'
 . . . . . . . . . . . . [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 'Amazon'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-02-01 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-03-02 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 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.alc-education.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 26105465797095789689564154296981655079032169860917757585392336611293225258951936666502108914876015662605375435533229331257443520399301209136293887752150692374197686018269808207004539677189747244478147351396866824094646201878040393048285050667188025232918180335066340520450291989617931207233674602262409560381358003424778796444451142634030112091688227681738204276491304456069567132290090733445141055904746363646681269180611199756081368823414930134852378239672955377116327566303053696950112639358889334251214435741259971955652889529297109559535066718392982221665980219568529528338237044139636144610782561216973257958089
 . . . . . . . . . . . . . . . . . . . . [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 59a4660652a07b95923ca394072796745bf93dd0
 . . . . . . . . . . . . . . . . [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)
							a43de54fd7e47d9de485bbb3c774e67bb88c5eeb
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.alc-education.co.jp'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (52 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.sca1b.amazontrust.com/sca1b.crl'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (105 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.sca1b.amazontrust.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.sca1b.amazontrust.com/sca1b.crt'
 . . . . . . . . . . . . . . . . [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 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)
							00ef0075002979bef09e393921f056739f63a577e5be577d9c600af8f94d5d265c255dc784000001775c4ebebb00000403004630440220341c5310d61b9a30703515c3adb6874ec267de034fe605e85c472a14a824f5c202205bc7a7865c8c05dd060572774a335e64c4666880ed0dd7416dc20d3646e358040076002245450759552456963fa12ff1f76d86e0232663adc04b7f5dc6835c6ee20f02000001775c4ebee6000004030047304502210092ed9d41d1e06c41fb7ffb0ffdd1060efcc7951867c292bf065e79c5d98a0e140220205a29b073fa2f7c2de9e4937f9bf9228dc8caeb0a1caf5ee754eddce32cbea9
 . . . . [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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