flor-tsukuba.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:ca:ed:8a:7b:c1:97:96:29:3b:85:41:02:fc:27:a2:16:11 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=flor-tsukuba.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:ca:ed:8a:7b:c1:97:96:29:3b:85:41:02:fc:27:a2:16:11Serial Number (int): 330389641995352142812043738948581445473809
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 82:a5:f5:98:8e:b7:c2:48:7a:1a:49:aa:96:6e:c7:87:ea:5f:96:d2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): cc:74:dd:14:23:96:49:98:c2:12:f0:57:7a:87:9b:8e:40:9b:eb:1e
Fingerprint (sha256): 04:ff:85:d2:92:8d:77:b6:c6:10:eb:d3:4a:07:f4:0f:fc:01:19:bf:20:b4:ca:14:7c:e8:87:32:d8:7c:b2:18
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 flor-tsukuba.jp
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for flor-tsukuba.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
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
flor-tsukuba.jp
www.flor-tsukuba.jp
www.flor-tsukuba.jp
Other certificates including the domain name flor-tsukuba.jp
(limited to 100 certificates)
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
flor-tsukuba.jp
Certificate
The complete raw certificate details for flor-tsukuba.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFFzCCA/+gAwIBAgISA8rtinvBl5YpO4VBAvwnohYRMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzAxMzExOTAxMDBaFw0x NzA1MDExOTAxMDBaMBoxGDAWBgNVBAMTD2Zsb3ItdHN1a3ViYS5qcDCCASIwDQYJ KoZIhvcNAQEBBQADggEPADCCAQoCggEBAKQXMkMQqHxctRX+wEu9NBjO9tyOrDpn PSyy722TCylURBpG9gAWHwEfAiNTlBSn635i+KxyVrvet3Q0L4XGVgPdXtuBM4nr 9cvh4Y8ZqNhjSyc2dv8QzbI2RbmN2tb/ZTNXA1bY3rAR2TzsHPWtDI7PWm1vXU/N 7hpzEhQebBmqMwvW+mP1kPfk0GJbrBZWyFJNA9SPgYvoi3hRfz75M1yAbCaR7whv h1mY0x875AnTDN+eaRXQa1Fm+dhzR+AN8FfPVEy9EBlhjeJh3CiYIEnFzFhITqgX XDtpiSk0om8CtXJzA28UH3N9lG2Ou6jbyJXbigA7o4NeRTXZLpkPNfcCAwEAAaOC AiUwggIhMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB BQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUgqX1mI63wkh6Gkmqlm7Hh+pf ltIwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwcAYIKwYBBQUHAQEE ZDBiMC8GCCsGAQUFBzABhiNodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQu b3JnLzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0 Lm9yZy8wLwYDVR0RBCgwJoIPZmxvci10c3VrdWJhLmpwghN3d3cuZmxvci10c3Vr dWJhLmpwMIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLfEwEBATCB 1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasGCCsG AQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxpZWQg dXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5jZSB3 aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9sZXRz ZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEBAJuN6jHQ IymUGmy2a4aFYgmQg1XUbzZ/DRS6zgblZErRae07IxRZvABrPl+SZ4xPT0vs2S7j iyA4HK3iQNm3giIuhLxBLnVECuYGHnjJ03Ajzglzea5Dg06APyopfL/On8PFdruW WTfr2dRYFEnwK6OaZCC/z9P789xzlbyUmEm0AlGDPdsHvwJzoXvc3QkqIoxGJfgO AePiGfVGvQ92YD5YE1Cn/AlHsOTAUtHSJW5Daw0KguEkKLMjSuQDaX5WwDDI0gFu DgQJzB8gffXGJGL1owBpPMRdN+BVtTAgR7+fZSDtKa4HnVibFEGytA2EQencN+v3 voEaKERNB+LD0us= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApBcyQxCofFy1Ff7AS700 GM723I6sOmc9LLLvbZMLKVREGkb2ABYfAR8CI1OUFKfrfmL4rHJWu963dDQvhcZW A91e24Eziev1y+Hhjxmo2GNLJzZ2/xDNsjZFuY3a1v9lM1cDVtjesBHZPOwc9a0M js9abW9dT83uGnMSFB5sGaozC9b6Y/WQ9+TQYlusFlbIUk0D1I+Bi+iLeFF/Pvkz XIBsJpHvCG+HWZjTHzvkCdMM355pFdBrUWb52HNH4A3wV89UTL0QGWGN4mHcKJgg ScXMWEhOqBdcO2mJKTSibwK1cnMDbxQfc32UbY67qNvIlduKADujg15FNdkumQ81 9wIDAQAB -----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 330389641995352142812043738948581445473809 . . . . . . . . [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 2017-01-31 19:01:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-05-01 19:01:00 +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 'flor-tsukuba.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 20714520553952466061368914440036739753938455567230136711406432211709332572087996308585101854057836506951297596649386632977356818147260374867624960353919634619722015469526547358573762125409929555975891380205396328028871344901797726271258062559991225706287463686215060345059139605013330317845993119260116955271572812620132357794537104600899503594965647572194837314848689010107820734912646855491648505810483744589380294894258025857579883138596650180384858172356151886982365763460699122395540920215461208410996730142321698986655616085464736824196225226636161956390575463496598327936283463716034889170647517313077466838519 . . . . . . . . . . . . . . . . . . . . [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) 82a5f5988eb7c2487a1a49aa966ec787ea5f96d2 . . . . . . . . . . . . . . . . [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 (100 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 (40 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flor-tsukuba.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.flor-tsukuba.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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