yuyyu.com

Issued by R3

About this certificate

This digital certificate with serial number 03:4e:ea:ed:c9:ed:c7:11:43:73:e4:7e:df:93:aa:cc:79:09 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=yuyyu.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4e:ea:ed:c9:ed:c7:11:43:73:e4:7e:df:93:aa:cc:79:09
Serial Number (int): 288191156436086096395518549571307018418441
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 49:74:bf:fd:fb:c8:45:05:43:c7:35:83:fe:0f:3c:d8:bc:c8:9e:a0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0c:4e:dc:a2:03:b1:33:60:58:98:9a:25:4e:1c:1f:75:d8:0c:d2:f0
Fingerprint (sha256): 36:86:39:36:61:0e:e0:7f:a3:40:7c:a6:0e:d2:5a:60:46:a9:03:67:75:3a:19:cb:8f:3c:9b:1f:35:e8:f5:ca

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

Revocation information

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

Check the revocation status for certificate yuyyu.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for yuyyu.com

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.yuyyu.com
yuyyu.com

Other certificates including the domain name yuyyu.com

(limited to 100 certificates)
yuyyu.com
yuyyu.com
yuyyu.com
shinebros.ca
www.yuyyu.com
app.yuyyu.com
brendabeautynails.fr
yuyyu.com
openexperiments.jp
yuyyu.com
yuyyu.com
trapandsurvive.com
s.sktnugu.com
yuyyu.com
yuyyu.com
www.signature.patrickroberto.com
cteters.com

Certificate

The complete raw certificate details for yuyyu.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5egiBfApQCnDx3ECedtY
2b7OaoTIkTuA0uOL0OJYBb0MklFSCdnFqAojGcUXgX70vKxVDjWbDweRGeZ4UDdL
f2JZzwyRz71DjWzVAcfuUVFcWaxEXcNkg+Jhk6vcHL749GsnrMu7iHaNHS9sG53c
qLxRIxxe+E7LRSJEP3A29jesq9I+7sCGQ6M03vpHq15hPB/IiQYag5KKVBBbeTIg
zbKjpnhFLP7IfzuphWldFvFw/YE9wUedyotVyT1Mdb4tjp8+rUqXKTaKNTcay3Ps
C1ZBAfn63UA6/7lSQAHNtUiJv6lDGa22P2S9sk2gNZv2jyoWQftDpk53YI6vE/mR
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 288191156436086096395518549571307018418441
 . . . . . . . . [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 2023-12-25 16:21:06 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-24 16:21:05 +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 'yuyyu.com'
 . . . . . . . . [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 29023040838068393730277326883152944430263201178663075461201731982230925090737742960154324488247254872124027451007123157843871816371001325532239909919552694788937747285751484471453828259751877836059422159218309638981197867365814740988810881365435008136273923096563712364311422156735102089714052595667073540243793683494688297014971405865094248185794476995555951300035266038505038719320776713988477242432018120174717076143316909989299539307535320256540176017237473660647252772096507711075639316098476775273622041359645958938447441663028545884267003076773995375750432912568916429872789766486942853036843448181189886185931
 . . . . . . . . . . . . . . . . . . . . [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)
							4974bffdfbc8450543c73583fe0f3cd8bcc89ea0
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.yuyyu.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'yuyyu.com'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ca1fe9b3f0000040300483046022100ef8f86db3a4eaaa07d031d184c75b89ce1534adbf45bde310c1ee011919dfda9022100df95a4a579cd0a1f08412735c156c72738ca339b48184d094b65c3e883b06aa00075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ca1fe9b4700000403004630440220717181c80990b971fdeac0184a36e70fd90bad093a14599ee2cce7d2aff319b302203b8ffd9ae475935e9a2ad1db94267e5c65fbf625317e9d1def7daefa4ecdbc1b
 . . . . [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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