tokyo.seasea.jp

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:1e:48:7f:7e:c9:de:42:fe:da:8c:ca:eb:6d:99:d5:0d:94 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=tokyo.seasea.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:1e:48:7f:7e:c9:de:42:fe:da:8c:ca:eb:6d:99:d5:0d:94
Serial Number (int): 358753981143643945746629394195821255527828
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d5:82:c1:ec:b4:05:44:85:81:e4:8c:8f:e0:66:5b:09:c8:09:0a:7d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 40:07:37:4a:da:f6:73:fa:da:92:a8:cb:36:9d:a8:7c:a8:cb:21:53
Fingerprint (sha256): 87:cb:37:df:5e:19:a4:22:94:3e:9b:69:bb:db:82:9e:3b:ee:07:a0:a4:05:bc:64:dd:e0:82:68:85:9c:a8:ab

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 tokyo.seasea.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for tokyo.seasea.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

tokyo.seasea.jp

Other certificates including the domain name seasea.jp

(limited to 100 certificates)
www.seasea.jp
www.seasea.jp
www.tokyo.seasea.jp
license.seasea.jp
www.seasea.jp
license.seasea.jp
license.seasea.jp
license.seasea.jp
www.seasea.jp
www.seasea.jp
www.seasea.jp
www.seasea.jp
www.seasea.jp
license.seasea.jp
www.seasea.jp
tokyo.seasea.jp
license.seasea.jp
license.seasea.jp
license.seasea.jp
license.seasea.jp
www.seasea.jp
www.seasea.jp
license.seasea.jp
license.seasea.jp
www.seasea.jp

Certificate

The complete raw certificate details for tokyo.seasea.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwWXvWHLg0GbG+77DC9Kh
FMW0FMqNxzpAH7V/6l8XolxjNzHKXifEWDUBHIvy+vZ+wMrca2btMzgFG7HWIGII
1OOR4Ro6vee+uksnOlv/0gCY7/ADZXfeXEzNGVmJXCBTfaEttH3SISBlZFoIsC/O
A5/iqmTszeOPyfa5Nn3JW1yAs0lWgxdiWmS+tJVziCIWwCwZv8MVPxf/388t2gL1
Nfc2iDOnhG4Z2MrV+iNr7q28wCViueqq+nJocmPD/LrD2+0V36XMonkju6PopR6t
tR8ogGJfLIh1RG6CMFhyEW4Gk/FPUVUt0g2VsF5nsvWf3/3eZEJRjpwC4ttk2SYt
uwIDAQAB
-----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 358753981143643945746629394195821255527828
 . . . . . . . . [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 2020-03-31 08:12:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-29 08:12:40 +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 'tokyo.seasea.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 24414258852464664416005170566910372011741743711587576972880342076944770135039661284166455733629958044978237235843645730939562766747071115181364294015558532797473531873161448084181116120511446621163710500398301722454075678943595250682385629052753189291089696511258692443290470783292991246359614688682762366625364642699031689192828853845263945749084009108887179801803301507867894276420261197391985051623582487639104687120264584665057749923581323275462309158766040704069425652030186292343535308291122091766152137788117226415645741861184522658929771773180869505296824548376267395426546965668417922413797446394848068644283
 . . . . . . . . . . . . . . . . . . . . [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)
							d582c1ecb405448581e48c8fe0665b09c8090a7d
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tokyo.seasea.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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001712fdd3d9e000004030047304502210097245c1885f16a2049860cf3d747bad5e67373fd187eb0d782207a3bbe26cff6022032f0672548a17a10216beceac823a7e180fbc3673fb8a58671c95cc4f3b1437c007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001712fdd3f8600000403004730450221009234e46947ed45ea80eea823a508708c3fe8c55d9e277e95faf75865944a4e72022005054785841aacfafb3c148cabc47781f2faac19ef26eef006fd1d095f192662
 . . . . [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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