peak-1.co.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:50:fa:2d:a9:c2:37:82:7b:21:40:a6:a5:35:6e:b7:f6:c4 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=peak-1.co.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:50:fa:2d:a9:c2:37:82:7b:21:40:a6:a5:35:6e:b7:f6:c4Serial Number (int): 288891991244375346014671688300262160070340
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: d7:59:cc:e2:19:c7:58:df:4b:d4:bd:4b:19:9d:6a:81:96:a7:56:c3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 13:0c:41:06:bc:64:26:61:20:70:f3:3c:d1:89:8f:4b:4d:b6:fb:b9
Fingerprint (sha256): a5:c5:06:84:a9:ff:4d:94:5a:f7:83:47:6f:ec:a1:fb:31:bb:10:e0:c5:6b:58:9a:b1:e1:fc:51:c4:a4:ff:72
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck 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
www.peak-1.co.jp
Other certificates including the domain name peak-1.co.jp
(limited to 100 certificates)
Certificate
The complete raw certificate details for peak-1.co.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFZDCCBEygAwIBAgISA1D6LanCN4J7IUCmpTVut/bEMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMzAxODAyMjJaFw0y MDA2MjgxODAyMjJaMBcxFTATBgNVBAMTDHBlYWstMS5jby5qcDCCASIwDQYJKoZI hvcNAQEBBQADggEPADCCAQoCggEBAJHM89VAgUyKBIz0MknrypCGAryiXJsf5cXx VOWAozV96xmsqZOtftTMKafywrxn86RPlu5VQsOT1UZZhLYPdcmsrUzuKOjRdedz 9jLKIfvAB8M1XHKK8s0w1hYq4Zpid2fpNVs2o47BX37nrZfNGyl8OMSzE0OdlviA fOpgwRDjwjaSyWFJPvb+sknZMCD+dnpsB0XnX9MGtY+QyH0CBEHFRU1EuSUunA0o DoyXGtQpMOno/xfhtzbZxm0T5i6FDJO8U2Ko834kxUKOZlxr4Y0VkeTvShAuPB6P 1+OKJSHDx0qXaHw1ip86JRg5s1EC7gn8JK6o/7TzIlJUZhSp1WkCAwEAAaOCAnUw ggJxMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUH AwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU11nM4hnHWN9L1L1LGZ1qgZanVsMw HwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBh MC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3Jn MC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3Jn LzApBgNVHREEIjAgggxwZWFrLTEuY28uanCCEHd3dy5wZWFrLTEuY28uanAwTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEGBgorBgEEAdZ5AgQCBIH3BIH0 APIAdwDnEvKwN34aYvuOyQxhhPHqezfLVh0RJlvz4PNL8kFUbgAAAXEs0sTcAAAE AwBIMEYCIQDgQJMYY/VDfTrWiwXeHyLZJfkIb6uUipK9967pBPnVRAIhAMfkungH DZXy1xCRXd06wGJWifnikcrE/cWs7qvgCZF3AHcAB7dcG+V9aP/xsMYdIxXHuuZX fFeUt2ruvGE6GmnTohwAAAFxLNLFIwAABAMASDBGAiEA4D7L2K2BS3EQ40aLEUek ob8Cv4YLXwP5kb/ZqH5SQ+ACIQDhh2/86qwLs37q+dZaw29bYIeJki2t/uaRcPd0 dKDqQTANBgkqhkiG9w0BAQsFAAOCAQEAnH7DTD6ABcDEuDOsVpfTNvwXiM+GtS6e NKhoy6FDBR97/yrT0T7MedxSxHvVX+7N5/tksz1t+dzenO2THqnr/TV2IdhzqH8c ElcqzDvlrEGRCzIZEx06sMbdPv92tE5nmiUlYaM0FslnkD3AntSJqrGqWN5kI2eV lWIo7enb2XCjAK9SqmUHM2V6FrQAi3NVk2XTIXoh1yXzTmolS3dudiFUdwuaTTgi RKC+0SOaoAgXtXanRn0Ra8Rin9QuYlX1PCx0pj7sPBhtRMIF8nqz/2XQUx6pAgnl YrRdFz9/jLrcgC1a+RwXl1KGkNbwcp/xd1EYzLeNbUEGnuykNWyDnw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkczz1UCBTIoEjPQySevK kIYCvKJcmx/lxfFU5YCjNX3rGaypk61+1Mwpp/LCvGfzpE+W7lVCw5PVRlmEtg91 yaytTO4o6NF153P2Msoh+8AHwzVccoryzTDWFirhmmJ3Z+k1WzajjsFffuetl80b KXw4xLMTQ52W+IB86mDBEOPCNpLJYUk+9v6ySdkwIP52emwHRedf0wa1j5DIfQIE QcVFTUS5JS6cDSgOjJca1Ckw6ej/F+G3NtnGbRPmLoUMk7xTYqjzfiTFQo5mXGvh jRWR5O9KEC48Ho/X44olIcPHSpdofDWKnzolGDmzUQLuCfwkrqj/tPMiUlRmFKnV aQIDAQAB -----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 288891991244375346014671688300262160070340 . . . . . . . . [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 2020-03-30 18:02:22 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-28 18:02:22 +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 18405620051150298432825699541848789920126696201269630812441988305646738505806308144045609604637094604895835263352600630473427400061066014726781172011461787093737657603339979116029824749512737866001809663073165502367582916787019793946673318023407606843804961701384536191030063023816915574899293790806938527837828881600145431003896380342619202586931741631538933341460718628411453673883272123101042857409531970855820451795805084284991529244564041582089355822916694353863815744156727963007339076563310378623927377270894255791149727076387782930056166671401102974925341281049959230050169350007989508903330310661927391057257 . . . . . . . . . . . . . . . . . . . . [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) d759cce219c758df4bd4bd4b199d6a8196a756c3 . . . . . . . . . . . . . . . . [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 (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 (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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e000001712cd2c4dc0000040300483046022100e040931863f5437d3ad68b05de1f22d925f9086fab948a92bdf7aee904f9d544022100c7e4ba78070d95f2d710915ddd3ac0625689f9e291cac4fdc5aceeabe009917700770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001712cd2c5230000040300483046022100e03ecbd8ad814b7110e3468b1147a4a1bf02bf860b5f03f991bfd9a87e5243e0022100e1876ffceaac0bb37eeaf9d65ac36f5b608789922dadfee69170f77474a0ea41 . . . . [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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