takeshi-seikei.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:fd:4e:8b:4a:0d:26:ff:cf:a0:34:c1:12:c5:54:da:a5:24 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=takeshi-seikei.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:fd:4e:8b:4a:0d:26:ff:cf:a0:34:c1:12:c5:54:da:a5:24
Serial Number (int): 347532699641153077445083739827400037016868
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d6:3c:e0:2c:fd:be:4b:c3:53:6c:0c:08:60:9d:91:58:cf:c2:13:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f8:69:c2:61:96:a5:51:5d:6e:a9:8d:2e:20:21:8a:41:4f:56:6a:74
Fingerprint (sha256): 32:47:ae:8f:8c:91:d5:a9:90:46:ac:c3:04:9c:56:f7:7b:83:a3:ee:10:ab:70:2e:06:16:9e:3e:83:7e:a7:56

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 takeshi-seikei.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for takeshi-seikei.com

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

takeshi-seikei.com
www.takeshi-seikei.com

Other certificates including the domain name takeshi-seikei.com

(limited to 100 certificates)
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com.ocean.or.jp
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com
takeshi-seikei.com

Certificate

The complete raw certificate details for takeshi-seikei.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4fU6PvusVqDiURC55z2v
uHMcrgnFO3tZvLfU4T/jJ9A1AWX5PH6PiNyx6/xP8iXZIryciYCN1N7wV7zV50/I
p5zjh+eGz4gy8Eje+GVjdMXV9uH6U3Hg/1IyUc7ZRKlzBMoWgpvImHpcigQ/c2SK
ITpvA/InQZZVlADRPN+kvmcabT2UErz8YdkQR6p2KXQ/YzaVWlqabbg0A/mXJxc9
9tntnwF9uvwmDRAcs3QXDXLzG/9YeSDzNGiPqVBUaGORBXl31QqA+ZgGJMA6qfl4
ISz8qd0Soqc0qYN+kvn+ueUXN63zDddusQgWxAxn64+YqKrZZLt8l7D7l+3daOIw
6QIDAQAB
-----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 347532699641153077445083739827400037016868
 . . . . . . . . [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 2020-03-18 01:34:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-16 01:34:12 +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 'takeshi-seikei.com'
 . . . . . . . . [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 28524544816204782627494236321749017098097587281839476291361531984794565846038600702543972956595904975945622724282926383060367703637075431820448182588101469652184095103588859402141120824292646420126949978877610092303982587350965540280168366791148416905488669585922438687047286808176573681485275241880970672105603924990443999461172626513206737136302761482872158167502552290857379206065741230932989766739026531643732141771499094802029193659788148655546873517732025789337226139020573551217446659029869514388204713668110080061685401650107562974550005039463291170299015422795889480366262426466396036834308784654424626835689
 . . . . . . . . . . . . . . . . . . . . [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)
							d63ce02cfdbe4bc3536c0c08609d9158cfc213b9
 . . . . . . . . . . . . . . . . [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 (46 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'takeshi-seikei.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.takeshi-seikei.com'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170eb7dc2a70000040300473045022025f89ef524cdb4fce9a4f0408cbfe83141be461b0538181734ebe323c2707e24022100c302041c70285af954d50f51255a877973dacc05a1e7ecfdaadabf00a6433250007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170eb7dc2b00000040300483046022100b63f265036ad262e7bbcffedd024d513e539030671b3cae8c8545209426e68620221009071338520d6bbbd38a51ae4e6c923b69b3f3e0f6076e65d5db86ade9b3e1d69
 . . . . [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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