www.yuka.io

Issued by R3

About this certificate

This digital certificate with serial number 04:e3:27:93:c7:5e:90:51:ba:42:b3:8f:a6:de:4c:c6:c8:eb 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:e3:27:93:c7:5e:90:51:ba:42:b3:8f:a6:de:4c:c6:c8:eb
Serial Number (int): 425745848221259457178405790595956018170091
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f6:8c:6d:a1:5d:27:e2:44:85:76:cc:fd:56:6a:40:75:e3:8d:d8:b8
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0d:f4:ec:97:74:d3:5d:9d:f6:ea:78:a7:6d:5c:ca:6c:73:33:5e:a9
Fingerprint (sha256): 88:f2:77:4c:14:3e:a3:96:01:62:41:18:7b:de:14:a5:56:ac:7f:51:f5:37:d9:9b:70:0d:06:10:4b:d3:26:d1

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo3cxXQevb1BiyGaW2W90
N+fn6BQdv1PmeOJpqNT3OEDcBSYLUT2mt/fpAi9fyPiw+I0yQAmZuITRrw830XDi
1Ldo1b1Z2IJV6nxCRCYZnY/GIM3NJe93s2+wcoi/HOSJp0raPqGIgeb8tqFC0wR0
T6jC4tHRjEodcDQ22YHCjs8dY8eG03/5LAanM4Rr3w7Ic/fxzjsQNqQN/3vm2Lv3
AunuV3cX7xsTx/5pTanxUv4nN0AMtLvE4cARJ965+Emz1Jtv3GgX+xYwxeHawc+M
03CgK4zK3qRsV3A5LzNiAd7Y8+fCRfwRbMBpm7xSt4xkQ/JDHaphrRkkscSvgGJq
ywIDAQAB
-----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 425745848221259457178405790595956018170091
 . . . . . . . . [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 2024-03-27 12:21:05 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-25 12:21:04 +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 20635619882475403303457813474028493975541274873978924606197633157257307210836700695335124733394143638602196186392201301782664622474124231708281936101015734282711961171165973013589207488020295635620609038386879733991663667513811699884799299614316416805756423432125635630776826174349494063773042214067398776686487586994276237693002197033888985000191128557677896259390723605576020485790447643589109235641548687370466327191384467908416758416177043642269227618595978111510290182954743852444484645675862956089159412968898971942383232713872690589154666987274509517236817274468143603425839564173056438817650937860206507485899
 . . . . . . . . . . . . . . . . . . . . [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)
							f68c6da15d27e2448576ccfd566a4075e38dd8b8
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e80124752000004030048304602210098b9e51224f32eebd496102a396c415b4e411f00f8b7763dd093352a7546eb4e022100be0b9ae5af17a7e1e46446a7baf79aa33e0f4f0b9c97526e3a6b419de1f5fd6b007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e80124996000004030047304502205e66c24e2b03d46cbf9a5dfb34798e26cf224688d2b4a65c2bdfa678e6b4e6e502210086de1878d329bf6ac02bb5f41931cfc7d8654cb1b658f41f63fb4014ef1b352c
 . . . . [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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