smartcitychallenge.com

Issued by R3

About this certificate

This digital certificate with serial number 04:80:5d:16:18:9e:0f:50:dd:4c:64:a4:32:3c:e7:8f:f4:3b 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=smartcitychallenge.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:80:5d:16:18:9e:0f:50:dd:4c:64:a4:32:3c:e7:8f:f4:3b
Serial Number (int): 392129019626360615051354371590131773600827
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 4f:25:32:5e:f5:7c:48:35:56:e0:7c:29:b3:3d:fa:1a:69:f1:ce:1f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ce:d4:71:98:1a:82:c7:04:33:08:2b:33:b8:17:a3:2e:50:36:cc:65
Fingerprint (sha256): 24:a6:08:69:d7:b4:37:15:74:c1:8b:94:e7:68:02:4e:ff:37:2f:cf:94:a7:09:9f:6b:c2:ab:db:e5:ea:a9:34

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

Revocation information

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

Check the revocation status for certificate smartcitychallenge.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for smartcitychallenge.com

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

smartcitychallenge.com
www.smartcitychallenge.com

Other certificates including the domain name smartcitychallenge.com

(limited to 100 certificates)
virtuoso.legal
smartcitychallenge.com
www.smartcitychallenge.com
www.smartcitychallenge.com
itcrimea.com
smartcitychallenge.com
dietebiologiche.com
www.smartcitychallenge.com
smartcitychallenge.com
www.smartcitychallenge.com
smartcitychallenge.com
www.smartcitychallenge.com
smartcitychallenge.com
smartcitychallenge.com
smartcitychallenge.com
smartcitychallenge.com

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----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 392129019626360615051354371590131773600827
 . . . . . . . . [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 2023-09-19 07:09:21 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-18 07:09:20 +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 'smartcitychallenge.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 782760456809589138099808031850359111683161256842159708818722031501097483033244722334801393611897685084974207507525113551575240582942064735356648111451089074959941913843894672420148846724518405717959726674156641150913188946013304058036677241421902997956160273230541164391796018776801932986304845019439633626663053065788576923201765970662446827531110909897106771308565012969513665007826995220221967810047950562896496240059910653516572945428576051222101927770224311431915874778527047388709796769963317754166477154969033155941026272219799368294383539715489664041810885507512954734319722846068063642060309827465759925217445456083112576060376399810760276762053803584934792328630147860185647845268440700660252126388535073618491741439390078564207673821051028061433698315987058774915303830861360849739148497276055923506042448017788221559114771279182189758602261562636956633315990100727319021676361808172582533869643428468387680887834579704688335526170146507095721326561726473004879540912176213124208162540601816316551677543354923789727373868629180169850828455316445362961122634533791737423045510455958158587704966464859665606359395822869760634635114664710784359623648010761637429350870997197551061551614249836949371277047545363359128141711859
 . . . . . . . . . . . . . . . . . . . . [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)
							4f25325ef57c483556e07c29b33dfa1a69f1ce1f
 . . . . . . . . . . . . . . . . [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 (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'smartcitychallenge.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.smartcitychallenge.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aac7c9a3e00000403004630440220510121fa603db29223c740b844cb9931a5842f41852b86bd1aa7dd1e19e0a986022019e39d74c8a44b89bd8e75a6137fddc00372023fb17ec529f3ec8251f89fd29c007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018aac7c9a6d000004030047304502210088e3dbd0a982998aa17df587377bca63bc80026a5a5efee012bc09d15fdced74022063c53dfc2c37d12862af9da238af200e3ae30696906f3d0b983ea80bbed7c1f7
 . . . . [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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