kasan.tokyo

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f7:bf:db:56:ad:90:54:29:9b:37:6f:96:f8:9d:8e:0c:dc 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=kasan.tokyo

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f7:bf:db:56:ad:90:54:29:9b:37:6f:96:f8:9d:8e:0c:dc
Serial Number (int): 345641623842997844090975275758817612008668
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 30:bc:b2:57:c7:c7:9c:bf:c5:a0:ff:f5:33:f5:00:61:a8:6b:08:cd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 95:04:cc:2e:cd:1f:0a:b8:de:61:cb:47:90:48:c5:4f:36:54:c3:e2
Fingerprint (sha256): 44:19:18:04:cb:31:ad:5d:84:85:b4:3c:83:19:d5:b6:22:d0:10:fd:ac:8d:25:78:7d:6d:b1:fa:ca:2c:05:56

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 kasan.tokyo

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kasan.tokyo

Public Key Algorithm

RSA

Key Size

4096

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

kasan.tokyo

Other certificates including the domain name kasan.tokyo

(limited to 100 certificates)

Certificate

The complete raw certificate details for kasan.tokyo in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGTTCCBTWgAwIBAgISA/e/21atkFQpmzdvlvidjgzcMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAyMDUwMzExNTVaFw0x
OTA1MDYwMzExNTVaMBYxFDASBgNVBAMTC2thc2FuLnRva3lvMIICIjANBgkqhkiG
9w0BAQEFAAOCAg8AMIICCgKCAgEA64MQQ2XqXuLh7OBDXMDBqaM7lR7YyWvMxn+C
3uaMJXba8Wb4pkLHDp38vaHfKNYcuvRkpV3inGd5hHTnbAhyKLerCc1yEf2nuHPL
ep3FRHlWWO5nK+CkpjE7ELljUmyd47g9hxKqUExsOKZe/L7aMIhrBgeDDc2Q71Sp
lPMz5VLqdRms5AIOm83hufn2oJarD8ile8ATpuU1/PlnJE8R1FPmz/hTrRT13a2Q
ABAM7iWCnH9nc/x/c6sc/Xr7P0sgJjj7+eeLPtzvuXEajoKKMqlwr1hlj5d9OTOy
/VtaxPZ/oPAUM3ii1XVqId99O8cjWq3Vp/WKNn88ofpgxxoeTGkHdzIZ11Xg2h05
mrBpgj+q0SwXZ1PLEzHdW+bOafycBbZY3KSrqPNjmw2sx/S6pEHtD+sPMqHsWGo7
tmaNUQyGbyiyWLUoR7fMCXNmFY3ztUmCSEyb2SHVnmt7weRv0gmCNQ6GmWX+BGY1
YucNJFq0rADEdluUIDQL8BZ+gryFXS0p6RDtoMRGLycw3c0YvdcvhpYhUHRAJscx
WAkD8AQsL56zD9aXcTN2vDLWfzvlb4+S1+IwF6pnoBTUp2WBT6724xlpwvIgw2dX
rQ1I6rLPpP/58ooH8DReEwIqFFJPaVKFkWk2MKZs4H2ZMoWD4qbcWjFgk9pt7uzO
hnyelTECAwEAAaOCAl8wggJbMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr
BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUMLyyV8fH
nL/FoP/1M/UAYahrCM0wHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw
bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu
bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu
bGV0c2VuY3J5cHQub3JnLzAWBgNVHREEDzANggtrYXNhbi50b2t5bzBMBgNVHSAE
RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw
Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1
AGPy283oO8wszwtyhCdXazOkjWF3j711pjixx2hUS9iNAAABaLva86EAAAQDAEYw
RAIgMdRpd7le7K/3NE7tpcb2YpxthEioMkOxXhtmnBhld6YCICY+4rmmPOAYq5HD
eDCyRJNPM7xMmeVunEWTGblCIe/iAHYA4mlLribo6UAJ6IYbtjuD1D7n/nSI+6SP
KJMBnd3x2/4AAAFou9r1lgAABAMARzBFAiEA1w/xtvR/iq7kveOkUj3HvTk4TNcZ
REAJxSHxY6utBswCIDAZqMfXwHIjQAAiKEW2d3hoF6y3SZ7Z4En5UuXjAJzdMA0G
CSqGSIb3DQEBCwUAA4IBAQBfTm2jYdaG3aXXCeh571xi5s7c4oO1bka7leeq8QBs
eFhtJcBzcLFoU7xVlzvz4tKEs/qKTX39aZqvM3dGXhu5xkNd13KVNJBxXFtI3u1s
oW7EYlquOlcI+SWxunvpG8mQiIl7c6oxMdlFQ69yGtxj6duUcAfDQBMHJ5zrw7E3
QCG6/0vyiKNf04WVr8Mqiy49c3wRrxl+p9lYgvqUyCLsYn8sWHVzfvnVL2PGLrBe
JjX6Nx/s0150uF85mrbd487AnP7F/vYLlRuAt/SxOuhBVLiQEBXYuNP5TDekO92p
oVTeq7f6rpdzGeK54u8SiVzGpGFGuv4tqtIel0ezV5e0
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 345641623842997844090975275758817612008668
 . . . . . . . . [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 2019-02-05 03:11:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-06 03:11:55 +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 'kasan.tokyo'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 960804998743424929781504239100885472557771558000522319973652795681625360380423273466927818802481320814260997981684835791879246176711410206865069599266345429981411235159099273128381804320585163118421387231022201414230883557669634016631733896780747232972793672638817548650963796642033474658948799094132052801759794089127124035976236574258125349402319580933150356772447025786854555851745712745903799831616881744497401436635077017371438603631565672865971923878683818583882654440837365167213190879472043603531371346732926864334676918536894062566896118905547375389354531406961082313133937598667470968337134613264858985791681995931353423509752711283663889260226540550603567904920152669068900655517257517483135445958062770864611032509936695148084409704984724259053004958165234307887259526887564784453496677536671937166173069939697716683066846611490083504071849946750173003700318283140192514671582980102975428113856012480116426167784340577094103683236959899069816110187077147493985210061685101487366731343763361617958682895180374955000650341546821285978013070576966000781947271339532190839673870357848772224304357433213423530205883485617286808878280352567518484792151251580526856969919109197038803157460915144863068461032338378264991101785393
 . . . . . . . . . . . . . . . . . . . . [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)
							30bcb257c7c79cbfc5a0fff533f50061a86b08cd
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kasan.tokyo'
 . . . . . . . . . . . . . . . . [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)
							00ef00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000168bbdaf3a10000040300463044022031d46977b95eecaff7344eeda5c6f6629c6d8448a83243b15e1b669c186577a60220263ee2b9a63ce018ab91c37830b244934f33bc4c99e56e9c459319b94221efe2007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000168bbdaf5960000040300473045022100d70ff1b6f47f8aaee4bde3a4523dc7bd39384cd719444009c521f163abad06cc02203019a8c7d7c072234000222845b677786817acb7499ed9e049f952e5e3009cdd
 . . . . [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)
		005f4e6da361d686dda5d709e879ef5c62e6cedce283b56e46bb95e7aaf1006c78586d25c07370b16853bc55973bf3e2d284b3fa8a4d7dfd699aaf3377465e1bb9c6435dd772953490715c5b48deed6ca16ec4625aae3a5708f925b1ba7be91bc99088897b73aa3131d94543af721adc63e9db947007c3401307279cebc3b1374021baff4bf288a35fd38595afc32a8b2e3d737c11af197ea7d95882fa94c822ec627f2c5875737ef9d52f63c62eb05e2635fa371fecd35e74b85f399ab6dde3cec09cfec5fef60b951b80b7f4b13ae84154b8901015d8b8d3f94c37a43bdda9a154deabb7faae977319e2b9e2ef12895cc6a46146bafe2daad21e9747b35797b4