www.yuka.io

Issued by R3

About this certificate

This digital certificate with serial number 04:e8:db:bb:52:80:5d:a7:2a:bd:b6:84:2d:7d:e1:d5:f4:07 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:
  • 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=www.yuka.io

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:e8:db:bb:52:80:5d:a7:2a:bd:b6:84:2d:7d:e1:d5:f4:07
Serial Number (int): 427686726416615929198558025190714360853511
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 27:a2:93:a3:69:f6:68:d9:ee:6d:54:ca:58:7e:a6:67:56:dd:fa:30
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 21:9c:5f:b7:79:45:66:ce:6d:3f:74:dc:5b:12:af:9e:c0:58:d4:a7
Fingerprint (sha256): 6f:49:60:7e:bf:c6:f4:bf:1d:d7:c3:93:c6:6d:dd:4c:cf:36:67:f8:f7:ef:f4:26:03:3f:d1:b6:cd:cd:02:1d

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

Revocation information

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

Check the revocation status for certificate www.yuka.io

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.yuka.io

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

www.yuka.io
yuka.io

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www.yuka.io

Certificate

The complete raw certificate details for www.yuka.io in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo4kvwfFFV+iILnBJrA4W
YcEFoHU8RPVXdOF8r39Zz8IHkY82xduEeAmBc1Rlf0kAy6pHnL3jqLlmoI4mLKtu
vcmeRO6XPi7L2slRyVMDCX/nT+0OSu+uFylJXAXM9jevw6VxT3a9rupSC5KoIVgr
UOfg2u+xYJHHJZz3c7WYjY4ppBSWA7eiPjzgAtG0460ty+N6OVLzyCXN+0qJT05B
taXo1fdS8qNtd7tEgPIKkD4XxQRDq0kv9nuGApvNeqeBYclhvSYdRjKcAWjPdqN5
Bfx43rYYl59oxdMJ88mdMLsJ8DDHWMVf0r8O10E1u0oTsQ1fuXEsHq2prfGm2v2L
uQIDAQAB
-----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 427686726416615929198558025190714360853511
 . . . . . . . . [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 2023-10-26 08:43:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-24 08:43:01 +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 'www.yuka.io'
 . . . . . . . . [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 20644492920110509020423758620181068542829915790413646758878981154590255336228432317829025905373741483962433384855619496250074451495166951891185145562773668524020246128876000874203562043325333463807183553016933048080122927814479469693442542109573271744473732201529136278468892483556268853772295644934224882718338260637885707654350294219971740797877755795081872061132119725613739097917762829214383448394919310982804396153350953386328159534920373786545195007871589966844159259521552943068492194870883669049429008290475551034984962601806261278999631745466581121894516909915893085410067171459328595078844897531186959453113
 . . . . . . . . . . . . . . . . . . . . [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)
							27a293a369f668d9ee6d54ca587ea66756ddfa30
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.yuka.io'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'yuka.io'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b6b5daa0b00000403004730450220535f157cb0d808bab62dd58f8f3094cd05df908c9ca7a106893bbe133924c9bc022100ac83b780dbfa48fd1c1ab3d31a60f649153768f90372e0b44c0ef7b0bcc6dee0007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b6b5daa890000040300463044022075a1223899e08408147324268d1a689b4a7c9f316f86fa95b6dc32f28211be1302202cda147014a4d0f8e4ee535b0f108a24cc72007162d2958b327bebd8ea7ffdf9
 . . . . [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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