dynacom.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:17:8e:c5:01:9d:a9:da:a0:1a:3d:28:81:36:2d:4e:6e:17 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=dynacom.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:17:8e:c5:01:9d:a9:da:a0:1a:3d:28:81:36:2d:4e:6e:17
Serial Number (int): 269353125525118712401466789840138298879511
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 90:6e:46:63:7f:e9:30:18:f3:20:62:15:a5:2c:c2:2b:aa:2b:88:cb
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 61:15:6b:be:12:c7:7a:81:6f:84:71:54:28:dc:23:92:7e:82:44:1f
Fingerprint (sha256): ea:64:92:b1:c0:0e:bb:77:73:a0:e4:2a:c8:0a:0f:a2:09:5e:45:80:ea:24:9d:f1:d6:2f:34:53:9b:c5:79:c5

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate dynacom.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dynacom.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

dynacom.co.jp
www.dynacom.co.jp

Other certificates including the domain name dynacom.co.jp

(limited to 100 certificates)
cloud.dynacom.co.jp
cloud.dynacom.co.jp
dynacom.co.jp
wftservice.dynacom.co.jp
bbs.dynacom.co.jp
bbs.dynacom.co.jp
dynacom.co.jp
www.dynacom.co.jp
www.dynacom.co.jp
bbs.dynacom.co.jp
bbs.dynacom.co.jp
cloud.dynacom.co.jp
cloud.dynacom.co.jp
bbs.dynacom.co.jp
bbs.dynacom.co.jp
dynacom.co.jp
www.dynacom.co.jp
www.dynacom.co.jp
cloud.dynacom.co.jp
www.dynacom.co.jp
bbs.dynacom.co.jp
bbs.dynacom.co.jp
cloud.dynacom.co.jp
dynacom.co.jp
bbs.dynacom.co.jp
cloud.dynacom.co.jp
cloud.dynacom.co.jp
www.dynacom.co.jp
wftservice.dynacom.co.jp
dynacom.co.jp
www.dynacom.co.jp
bbs.dynacom.co.jp
cloud.dynacom.co.jp
dynacom.co.jp
dynacom.co.jp
www.dynacom.co.jp
www.dynacom.co.jp
bbs.dynacom.co.jp
dynacom.co.jp
dynacom.co.jp
www.dynacom.co.jp
cloud.dynacom.co.jp
www.dynacom.co.jp

Certificate

The complete raw certificate details for dynacom.co.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArltLoZPZ5SozqQ6aV7BE
7IymEIQgMrejGtNcjdFbw5SlVnXIfcIgMg2RIW8XFa2uVWxgov6sU9L+Ltei2XUJ
sefTrlfadKyKNufymAOztFt6lvybwVDtC0ziiMiZfFFj8db12axB1wkcLCwcAW75
4hOhGA0fJx/YOuhAFVU98W9A1+LOTu81gi4/Z0PqelK9nXQ0m4dNqB6DwHxPFF9k
UJwjuIKRdqonshVZphqQZ8/ExFEP8MYGZ0rF3za1ZTRQ7cxn9RPtPXiIN2N9xalY
RKCgJbGaEiZYxqhpni2b/I0EBROIkz4t65ISzzLUr0/rz0Vr/UgGTRSNHRDgCrO0
NwIDAQAB
-----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 269353125525118712401466789840138298879511
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-24 17:00:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-23 17:00:50 +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 'dynacom.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 22010484520609979171996438056592714031290055897433248678484401617056268779636705143011898777993627811460698464150052738191608901544319516651818703841309324141109386502026814744961679421411790818880411980430872950344495630253426564371169270983422773807723350911899037928107609400903488287410967258569176763150634666654246103022103434988309169076876373045033698454644092756112399129716687491728242859103180910756914706338983576415339427456592685876084942666252376707937748103938202188338167160321211053189609082007205079489535825174242509661058158035378199871353412200771329176575160438572869209493982062640187791619127
 . . . . . . . . . . . . . . . . . . . . [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)
							906e46637fe93018f3206215a52cc22baa2b88cb
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dynacom.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.dynacom.co.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 (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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ac859f06b0000040300483046022100926c2e78c220cf65cea5668d68d1a19129f2a947a60dd0b294b3122c4e75631b022100d6420e2fa639f6bf825058d5d7fe657e2b8a4e2770cf792ef9774dcee52161cc007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018ac859f0570000040300473045022042fff1990823ca946efc2c3279e7775cb748890f003eec98b872d6d89461a965022100a0296f60caac34727c3c0a30c3941a9c1287e40b603331deecea665f7e9a8ca2
 . . . . [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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