blog.takuya-andou.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:4b:28:e0:78:42:ae:78:0e:41:6c:f2:dd:91:89:f7:fc:0c 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=blog.takuya-andou.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:4b:28:e0:78:42:ae:78:0e:41:6c:f2:dd:91:89:f7:fc:0cSerial Number (int): 374024655879611286476822821339089123933196
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 97:1c:58:12:ce:bf:c2:8c:6b:d7:b1:11:03:95:15:16:d5:74:a2:20
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 00:ca:80:3a:e1:db:6d:5d:c4:c7:4a:74:79:f6:a6:59:ec:6e:7f:83
Fingerprint (sha256): 65:56:59:ea:5d:4a:a4:50:71:d1:1d:b3:b7:d5:3d:75:6e:f4:81:e0:f2:e8:ff:59:ae:7e:7b:3b:eb:ec:33:c5
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate blog.takuya-andou.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for blog.takuya-andou.com
Public Key Algorithm
ECDSA
Key Size
256
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
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
blog.takuya-andou.com
Other certificates including the domain name takuya-andou.com
(limited to 100 certificates)
uma.takuya-andou.com
quiz.foxfox.io
blog.takuya-andou.com
www.p-seiko.com
philosophy.takuya-andou.com
blog.takuya-andou.com
philosophy-api.takuya-andou.com
fitboard.app
www.buttlanedentalsurgery.co.uk
blog.takuya-andou.com
149.ai
blog.takuya-andou.com
takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
takuya-andou.com
www.bestseattlecatering.com
blog.takuya-andou.com
blog.takuya-andou.com
johnnywonder.app
philosophy.takuya-andou.com
arzamas-16.ru
blog.takuya-andou.com
chuboy.co
blog.takuya-andou.com
intimately.app
girona.bepass.com.br
takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
apzeldinimas.info
paavn.in
fast.bprslantabur.id
nekobato.net
takuya-andou.com
takuya-andou.com
blog.takuya-andou.com
admin.suvidhahome.com
iclip.ai
quiz.foxfox.io
takuya-andou.com
123abcid.com
www.shode.dev
blog.takuya-andou.com
www.janetkok.tech
blog.takuya-andou.com
blog.takuya-andou.com
uma.takuya-andou.com
www.aaronkg.co.uk
quiz.foxfox.io
blog.takuya-andou.com
www.p-seiko.com
philosophy.takuya-andou.com
blog.takuya-andou.com
philosophy-api.takuya-andou.com
fitboard.app
www.buttlanedentalsurgery.co.uk
blog.takuya-andou.com
149.ai
blog.takuya-andou.com
takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
takuya-andou.com
www.bestseattlecatering.com
blog.takuya-andou.com
blog.takuya-andou.com
johnnywonder.app
philosophy.takuya-andou.com
arzamas-16.ru
blog.takuya-andou.com
chuboy.co
blog.takuya-andou.com
intimately.app
girona.bepass.com.br
takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
blog.takuya-andou.com
apzeldinimas.info
paavn.in
fast.bprslantabur.id
nekobato.net
takuya-andou.com
takuya-andou.com
blog.takuya-andou.com
admin.suvidhahome.com
iclip.ai
quiz.foxfox.io
takuya-andou.com
123abcid.com
www.shode.dev
blog.takuya-andou.com
www.janetkok.tech
blog.takuya-andou.com
blog.takuya-andou.com
uma.takuya-andou.com
www.aaronkg.co.uk
Certificate
The complete raw certificate details for blog.takuya-andou.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIEljCCA36gAwIBAgISBEso4HhCrngOQWzy3ZGJ9/wMMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMTMxMDAwMzRaFw0y MDA0MTIxMDAwMzRaMCAxHjAcBgNVBAMTFWJsb2cudGFrdXlhLWFuZG91LmNvbTBZ MBMGByqGSM49AgEGCCqGSM49AwEHA0IABE3JOWm0gOpbcZc/XXbZfSByW3Dn/biw L6zXhj+YdeTOeJEn90rGslKQtn/ZTP9gSYxEe7lsC5FjihoVFh2pGRKjggJpMIIC ZTAOBgNVHQ8BAf8EBAMCB4AwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMC MAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFJccWBLOv8KMa9exEQOVFRbVdKIgMB8G A1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAu BggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAv BggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8w IAYDVR0RBBkwF4IVYmxvZy50YWt1eWEtYW5kb3UuY29tMEwGA1UdIARFMEMwCAYG Z4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMu bGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUAsh4FzIui zYogTodm+Su5iiUgZ2va+nDnsklTLe+LkF4AAAFvno/+BwAABAMARjBEAiAcB45x w/cUnhSZ3Dm3T9Zn9A/OAc4Vlf9baz/at4zmUwIgaS0WaIDDXG5jM333gU8hgkYX swVC2M7FK4DAHnpFVaQAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFF WAAAAW+ej/6nAAAEAwBHMEUCIBzeZ/BXZND3LwlViepZJ8AAFdtaEblU2FImy7DX UFb5AiEAzwTxc/7+r/GyUX4rOHO5FuiVkLdUHhKwiUp1OopAfjUwDQYJKoZIhvcN AQELBQADggEBAFAYWXM9zb8PQFSyjbdSqfSsMlRfhIpc9HLS3EW0hf0NK3HAK+fE vz8cfE6H3FgE18/CMVz7adODyJZVu078jCpkdg/cy1ZHRkWobSGhdW7U5uo+4v4b uUHibPZTZWXHy6XTVle8bcxpfDw/nP8tHhlrfjb9Kvs9R+QfvZmxW5DOQkcbHxJW CYuZiaUoJtkFcCazYlo3SJGr4AD22ytmAgl8yToYrj4tUjYQJ85Gm+wBMTQpa2CH /SemSJ/lEb21bcdd9U/YoytJnvT7g+RIP9YGZssm9vcyl8FcLsCvZ4Y48kXwCyrG 3vYEsbVsuLBRwExEi/3ubssM51T4E7DaOx0= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAETck5abSA6ltxlz9ddtl9IHJbcOf9 uLAvrNeGP5h15M54kSf3SsayUpC2f9lM/2BJjER7uWwLkWOKGhUWHakZEg== -----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 374024655879611286476822821339089123933196 . . . . . . . . [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 2020-01-13 10:00:34 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-12 10:00:34 +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 'blog.takuya-andou.com' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey) . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1) . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits) 00044dc93969b480ea5b71973f5d76d97d20725b70e7fdb8b02facd7863f9875e4ce789127f74ac6b25290b67fd94cff60498c447bb96c0b91638a1a15161da91912 . . . . . . . . [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 (1 bits) 0780 . . . . . . . . . . . . . . . . [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) 971c5812cebfc28c6bd7b11103951516d574a220 . . . . . . . . . . . . . . . . [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 (25 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'blog.takuya-andou.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f9e8ffe07000004030046304402201c078e71c3f7149e1499dc39b74fd667f40fce01ce1595ff5b6b3fdab78ce6530220692d166880c35c6e63337df7814f21824617b30542d8cec52b80c01e7a4555a40076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f9e8ffea7000004030047304502201cde67f05764d0f72f095589ea5927c00015db5a11b954d85226cbb0d75056f9022100cf04f173fefeaff1b2517e2b3873b916e89590b7541e12b0894a753a8a407e35 . . . . [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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