smartcitiesweek.com

Issued by E1

About this certificate

This digital certificate with serial number 04:bb:cc:a6:32:f3:f5:6d:ce:a9:79:f5:b9:9f:19:d2:02:ca was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=smartcitiesweek.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:bb:cc:a6:32:f3:f5:6d:ce:a9:79:f5:b9:9f:19:d2:02:ca
Serial Number (int): 412353971807123999123409468425515199234762
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c4:bc:a7:9e:85:03:32:f4:82:ee:e9:51:a2:42:bc:ed:7d:21:81:0e
AuthorityKeyId: 5a:f3:ed:2b:fc:36:c2:37:79:b9:52:30:ea:54:6f:cf:55:cb:2e:ac

Fingerprint (sha1): 17:ed:5e:7d:45:4f:96:7b:f9:43:bc:da:88:fc:3e:b8:5c:f6:36:d9
Fingerprint (sha256): 64:c4:ec:9b:d1:51:fd:7c:f3:64:39:83:1e:97:ef:7c:15:c8:b5:15:69:b3:1d:f7:7f:29:b1:d4:7b:4c:d8:df

Issuing Certificate URL: http://e1.i.lencr.org/

Revocation information

OCSP Server: http://e1.o.lencr.org

Check the revocation status for certificate smartcitiesweek.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for smartcitiesweek.com

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

ECDSA with SHA384

Key Usage

Digital Signature

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

*.smartcitiesweek.com
smartcitiesweek.com

Other certificates including the domain name smartcitiesweek.com

(limited to 100 certificates)
washington2019.smartcitiesweek.com
smartcitiesweek.com
insights.smartcitiesweek.com
smartcitiesweek.com
insights.smartcitiesweek.com
dev104.mci.smith-and-williams.com
washington2019.smartcitiesweek.com
smartcitiesweek.com
australia2019.smartcitiesweek.com
insights.smartcitiesweek.com
smartcitiesweek.com
smartcitiesweek.com
australia2019.smartcitiesweek.com
washington2020.smartcitiesweek.com
smartcitiesweek.com
sandiego2019.smartcitiesweek.com
insights.smartcitiesweek.com
insights.smartcitiesweek.com
dev104.mci.smith-and-williams.com
dev104.mci.smith-and-williams.com
washington2020.smartcitiesweek.com
australia2019.smartcitiesweek.com
dev103.mci.smith-and-williams.com
dev103.mci.smith-and-williams.com
sandiego2019.smartcitiesweek.com
www.smartcitiesweek.com
www.smartcitiesweek.com
australia2019.smartcitiesweek.com
dev103.mci.smith-and-williams.com
smartcitiesweek.com
smartcitiesweek.com
smartcitiesweek.com
smartcitiesweek.com
smartcitiesweek.com
washington2019.smartcitiesweek.com
partners.smartcitiesweek.com
sandiego2020.smartcitiesweek.com
smartcitiesweek.com
dev104.mci.smith-and-williams.com
australia2019.smartcitiesweek.com
dev103.mci.smith-and-williams.com
australia2019.smartcitiesweek.com
australia2019.smartcitiesweek.com
partners.smartcitiesweek.com
smartcitiesweek.com
smartcitiesweek.com
insights.smartcitiesweek.com
*.smartcitiesweek.com
dev103.mci.smith-and-williams.com
washington2019.smartcitiesweek.com
smartcitiesweek.com
washington2019.smartcitiesweek.com
dev103.mci.smith-and-williams.com
washington2019.smartcitiesweek.com
sandiego2020.smartcitiesweek.com
washington2019.smartcitiesweek.com
sandiego2019.smartcitiesweek.com
smartcitiesweek.com
smartcitiesweek.com
australia2019.smartcitiesweek.com
smartcitiesweek.com
smartcitiesweek.com
dev104.mci.smith-and-williams.com
*.smartcitiesweek.com
partners.smartcitiesweek.com
washington2019.smartcitiesweek.com
washington2019.smartcitiesweek.com
australia2019.smartcitiesweek.com
washington2019.smartcitiesweek.com
sandiego2019.smartcitiesweek.com
partners.smartcitiesweek.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAExc+vKY1TfhaaACs3X7nAvyKgjX6L
db7MWHlwj8z1Mj1YPKHbYjGx+2shrZ7sG1H5gHBSHJ2sodLzXYP9/LEdbA==
-----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 412353971807123999123409468425515199234762
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.4.3.3 (ecdsaWithSHA384)
 . . . . . . . . [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 'E1'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-12 14:37:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-10 14:37:22 +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 'smartcitiesweek.com'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				0004c5cfaf298d537e169a002b375fb9c0bf22a08d7e8b75becc5879708fccf5323d583ca1db6231b1fb6b21ad9eec1b51f98070521c9daca1d2f35d83fdfcb11d6c
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							c4bca79e850332f482eee951a242bced7d21810e
 . . . . . . . . . . . . . . . . [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 5af3ed2bfc36c23779b95230ea546fcf55cb2eac
 . . . . . . . . . . . . . . . . [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://e1.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://e1.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 (46 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.smartcitiesweek.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'smartcitiesweek.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)
							00ef0076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018f6d7399780000040300473045022100b28bcf9f0ec6b5b772ce3e8c480ccaa663874388138bcffb3b09dfd5ab3e05e8022059bd12fc1baf30d841d599e8cadec75a91168d1fe42fbe31d79e54d62709c95d00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018f6d7399a40000040300463044022073157487e628cbe3d90c4c7d34595e7ba9bfef4998a4899d6316f9fe9c6fbb110220563555b03612312a7787c9a9ff4e75d82c217a0fc4854a2636cb53b090b5f78e
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.4.3.3 (ecdsaWithSHA384)
 . . . . [c:0|t:3|false] BIT STRING (816 bits)
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 3564802327725809357143040478949086887145356280959146752519596503968098703834222132903931936104568133426034104746498
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 12488396926944450559245902140203522605277930091509095914839976389073239180709319494604398012688633383949347029136988