www.yeastar.sg

Issued by R3

About this certificate

This digital certificate with serial number 04:8e:3f:da:24:07:e0:7c:b9:ec:47:2e:39:62:1c:e7:2c:b8 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.yeastar.sg

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:8e:3f:da:24:07:e0:7c:b9:ec:47:2e:39:62:1c:e7:2c:b8
Serial Number (int): 396854113845054676986768710925506029497528
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 71:29:88:57:82:21:7b:fd:c4:3c:fb:f0:92:7f:e4:76:6b:10:a6:6b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): bc:c7:05:c7:8e:4d:f9:5c:c4:5d:40:a2:64:61:a7:4b:49:6f:98:f6
Fingerprint (sha256): 02:8d:8d:90:fc:0f:2f:fa:bb:06:36:38:f6:6d:c0:14:db:94:21:4c:10:dd:43:56:22:66:d4:d4:0d:93:5f:f1

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

Revocation information

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

Check the revocation status for certificate www.yeastar.sg

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.yeastar.sg

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.yeastar.sg
yeastar.sg

Other certificates including the domain name yeastar.sg

(limited to 100 certificates)
hr.web-ai.studio
people.tesseractesports.com
myhrms.keaktephaenkar.com
www.yeastar.sg
subscriptions.cmfx.app
hr.welhunt.com
myhrms.supermpower.com
people.generictechltd.com
hr.intellisystech.net
people.cititech.co.za
hr.nari.ge
subscriptions.whatsscore.com
people.fajwah.com
subscriptions.voolama.co
billing.wildamerica.earth
people.sarisuki.com
customer.be-gb.co.uk
myhr.salubrify.in
people.israelit.pro
subscriptions.guruthetrainer.com.au
people.cititech.co.za
hr.web-ai.studio
hrms.brevitysoftware.com
myhrms.keaktephaenkar.com
people.tripleasolutions.com
subscriptions.whatsscore.com
subscriptions.whatsscore.com
people.covalentrg.com
subscriptions.trueup.ca
people.tesseractesports.com
subscriptions.uptime365.com
zoho.illumedia.net
people.yeastar.sg
people.tripleasolutions.com
me.tapinad.com
subscription.beekast.com
people.covalentrg.com
people.fajwah.com
billing.scottsystems.com
people.fidypay.com
bounce.wavedex.io
billing.ameritrex.net
subscriptions.unicornauthors.club
me.tapinad.com
www.yeastar.sg
subscriptions.whatsscore.com
hr.nari.ge
subscriptions.unicornauthors.club
myhr.salubrify.in
myhr.salubrify.in
billing.scottsystems.com
hr.welhunt.com
subscriptions.whatsscore.com
vedananda.vedananda.io
billing.ameritrex.net
myhrms.supermpower.com
subscriptions.guruthetrainer.com.au
subscriptions.whatsscore.com
hr.nari.ge
hr.nari.ge
zoho.yajnas.tk
people.moatsteam.com
people.israelit.pro
people.cititech.co.za
people.fidypay.com
people.sarisuki.com
zohopeople.eblal.com
zohopeople.eblal.com
people.factri.ai
people.covalentrg.com
hrms.smidnya.com
hrms.brevitysoftware.com
hr.welhunt.com
subscriptions.guruthetrainer.com.au
me.tapinad.com
people.generictechltd.com
hrms.brevitysoftware.com
crm.ramez.co
app.itsecnow.com
subscriptions.voolama.co
zohopeople.eblal.com
register.autobidbroker.com
my.dataeconomy.io
billing.ameritrex.net
people.moatsteam.com
subscriptions.uptime365.com
crm.ramez.co
people.sarisuki.com
billing.scottsystems.com
subscriptions.trueup.ca
people.sarisuki.com
my.dataeconomy.io
people.fajwah.com
me.tapinad.com
subscriptions.trueup.ca
hrms.smidnya.com
people.fajwah.com
subscriptions.uptime365.com
subscriptions.whatsscore.com
subscriptions.cmfx.app

Certificate

The complete raw certificate details for www.yeastar.sg in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0XW6ylMYF9HnQ6AlzZiE
oY9GCXmN/tleuZIzPZgHELybWpPguZC9JEM1W6Fb6+vfnqePcQnci3Tiomfocy+A
5YG+zQcv/3QmEcYsrggn1ul5kRCtyEhiCfUqL7YAnpIiaQSaSGNXFi6OZnkqz+PA
Wj5vvwHEpLbRTioln8aCVJwh4x+gTmCHHpM4nNOxtMoe3Yl9AFcMq7tsHr14azwq
hWRqUJWORGMIZsPh2mzlQficU80wGqSu33OjKJsGf7uNMooxnLjrB11iu0bctNu+
A1jrK6ETupaZ1cC9Uulc5z4nVtWN4/GP1nCKiT7wW+YMWzQ8s2wGvKp9xwKAIvhZ
TQIDAQAB
-----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 396854113845054676986768710925506029497528
 . . . . . . . . [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 2023-09-17 00:06:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-16 00:06:51 +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.yeastar.sg'
 . . . . . . . . [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 26441860391913806632794556706935416562337214742555601999349726055441827425145769362437373778976427990838086475637066096410990964576222709601209039889391895156703763487763140330257930789961127533004215203086692791189203547562304015555941708512532653531296511633278096142065583257015770771936367427075237609984751687364806740891098195220373180956438511896429189207990182755046922978314969285223575312985507015611279771012845376838660062075562611446972165421420259798361307689724846441757925667628526453585500644489465855803337513132832998756515540008209474412989102372616126636129531430894792170827387414094709479987533
 . . . . . . . . . . . . . . . . . . . . [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)
							7129885782217bfdc43cfbf0927fe4766b10a66b
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.yeastar.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'yeastar.sg'
 . . . . . . . . . . . . . . . . [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)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aa0ad17880000040300473045022100c832f22a47fc1267ecbd15ee991a4ab50ce3deb906e044d7e288fefa999178d50220072049474fef122ad360ee998a3d731c0bc093bb6484cfac48c333172ac5bf07007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018aa0ad177b000004030046304402205577bb3e3a1545170236191c891a3aae6a34c164e6109ef86c47d3718e0a028502200d56bfe293e84d4fe04229766e2a54ce63ed2b6e7d64e51c460ea181fe7a06f8
 . . . . [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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