peak-1.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:ce:6a:9a:fc:7b:73:55:ad:43:e6:a9:1b:85:6a:f8:71:af was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=peak-1.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:ce:6a:9a:fc:7b:73:55:ad:43:e6:a9:1b:85:6a:f8:71:af
Serial Number (int): 331576728283211457321831001404009872912815
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 48:50:da:37:f4:95:44:26:a7:14:15:b3:e3:ac:3b:fb:d4:74:18:a0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 48:13:49:e3:f1:a7:b4:d5:d0:1f:3e:1f:6f:de:95:f2:0b:52:86:ba
Fingerprint (sha256): 19:ed:06:af:72:17:39:ff:36:43:e6:54:1b:35:06:12:d5:3b:da:39:58:8c:1d:72:95:8f:f5:95:03:78:b0:68

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

Revocation information

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

Check the revocation status for certificate peak-1.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for peak-1.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

peak-1.co.jp
www.peak-1.co.jp

Other certificates including the domain name peak-1.co.jp

(limited to 100 certificates)
ssl.peak-1.co.jp
peak-1.co.jp
peak-1.co.jp
peak-1.co.jp
peak-1.co.jp
peak-1.co.jp
peak-1.co.jp
ssl.peak-1.co.jp
peak-1.co.jp
peak-1.co.jp
ssl.peak-1.co.jp
peak-1.co.jp
ssl.peak-1.co.jp
peak-1.co.jp
peak-1.co.jp
peak-1.co.jp

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq/K51ya9UUvZAesOwsOx
Bp83B9dS31dotGNrzos5yWKwnuZbwBcRP4+IOxL3St+ey5bQcsGvFOZ2cGyQeLti
5asMPVuhtS6WIq9Y3ZGmz2NOsE0CK078QPlLVq00142fvy0dzl3QojvMsgKIN/bX
zwrvODfLO03E6oiV9XPs7e1YnQJirhkWmOZwYE2sLjdxz0blh92uYcnMMNBnC0Rv
mpROUWQFR6QNrKKJwZriNeFQL8/3mztsBqt0eevU+NhLV1vdL9aZxc1Vlro7BUKm
V/lz1O+L2x5BJO1tMbuBYm/xEtgYtHx1JlEmcjtpegdF/VbaDhevDUfRJjmmOBpT
PQIDAQAB
-----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 331576728283211457321831001404009872912815
 . . . . . . . . [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 2024-02-25 15:16:05 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-25 15:16:04 +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 'peak-1.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 21706442770820004805754919507703658690108629190523236491896076628139185601993244466012538326788405084597502549075550041290933043506778694634508501622344395067093031159107386194264223906027995114897246687317751024612593884887033807718012833610357067368277931731814760968558612472540505988878470956523110631745351162673905382654790051025193868966588957253638999678474979186902489714016236233727325056309967932527179036869504351705852812988247943139915524917909599199171522535963927583507922112313310622393372001566097706637894961143605816185804974651907898833008781430297974128423431520759011195273119354264010742190909
 . . . . . . . . . . . . . . . . . . . . [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)
							4850da37f4954426a71415b3e3ac3bfbd47418a0
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'peak-1.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.peak-1.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018de10d5a0d0000040300483046022100df5bd811db355a7fd17489b8b123e510873025f3545248ebd38b7fda2086ca22022100c38b25e6a021ea7a38f6cdb35e25b191bd8ed0dfa4532c5d153db45169678c70007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018de10d59df00000403004830460221009a571fb81f6a8755128e89f3f1f6ec3d793a7c69baf71b892d4839ec3c4ca18a022100e44b83e455adda4f91c755ccc538753a4f697f149bb37d358f99c454c5288c13
 . . . . [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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