smartcitychallenge.com

Issued by R3

About this certificate

This digital certificate with serial number 03:f6:54:e2:ff:e7:1c:74:4b:04:a9:f0:02:d0:dd:0d:56:29 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): 03:f6:54:e2:ff:e7:1c:74:4b:04:a9:f0:02:d0:dd:0d:56:29
Serial Number (int): 345159153858892524398134431152614344054313
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 83:5c:14:67:de:75:1e:63:57:3e:89:fb:99:59:63:0a:bf:a4:cc:31
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3c:f2:90:92:cf:82:24:92:66:0e:a1:23:77:85:5a:cf:d0:80:0d:83
Fingerprint (sha256): 0b:1b:1c:e8:48:16:15:ab:f8:e2:69:92:e7:31:55:de:a2:9c:eb:81:d2:fe:06:c4:53:d5:46:a2:4d:05:db:fb

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-----
MIIGFTCCBP2gAwIBAgISA/ZU4v/nHHRLBKnwAtDdDVYpMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAxMTkwMzA1MjVaFw0yNDA0MTgwMzA1MjRaMCExHzAdBgNVBAMT
FnNtYXJ0Y2l0eWNoYWxsZW5nZS5jb20wggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAw
ggIKAoICAQDMMSMcGNivRevcB1L982h2Cy9GQwnZWeN5l402s6HKmyUJDv235C/Q
TvD6ZuP0zobrMO8T8dNeY78oCJIeoeTKeCjKbZck0O6ANP6GiF0s1ZxFjqxWj/9C
Bmp4mCFD7Pj3iM/geXw1Bf2/RgtvtE6+UwCzccYe2DmHKeDqRj3Iqh8hDyVLbC0+
gJmNbZ7RRDMNCiNaaYQ2kqPZQie+tNajb/D8iQpQzAkCn0KV8yeWB4XtIUibO0AB
0Gt0punwMM6AS0KuchauGCKHURujXfzdz9JDgL6qc7Jk3EEyQJskrgv51ksLsgXz
1qKnr1aZO8T01mNb5Vf7NkgxG995nRWQKzIkdP+5axyYa8mX+rIsJDn9SBfyLRO5
6x9XuJtBdbYMRSVFcLfNH5vEb+ZbBeosRhd69Z6BMtv7GU0s9Y1muPul9fAy/0ui
/l59FYivSj0rpRPOBmOg++JoGObOYnmWieMBTTjK/YEgSFk08H2mM/lxXvnds/JM
CMN63UcMhfjLCHH/8jb3m2BP/4eijmfWDLU89NNrnXGdgGo+j21CkjYrrVLTKV+w
+NC+elHRlf3+jLVmIK5vU9E5hTJA/07kKZqeMhlSfDprgRb3e5VFCSttXtCgvFcL
xe2L47O51X4XRe2jssC/1jSM5s0miVOHl6HQQ7okkU50Gs9HkHAPOQIDAQABo4IC
NDCCAjAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF
BQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSDXBRn3nUeY1c+ifuZWWMKv6TM
MTAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJ
MEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcw
AoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzA9BgNVHREENjA0ghZzbWFydGNpdHlj
aGFsbGVuZ2UuY29tghp3d3cuc21hcnRjaXR5Y2hhbGxlbmdlLmNvbTATBgNVHSAE
DDAKMAgGBmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2ADtTd3U+LbmA
ToswWwb+QDtn2E/D9Me9AA0tcm/h+tQXAAABjR/lHY8AAAQDAEcwRQIhAIFupDRU
O2ubkoFUsekBeQPWt7Ee/ZVGrZXggWIGSmQUAiA6uMFHKxMzpAR5OPCwWzFQlkpw
mkfUsS/s7tinC9FCAwB2AEiw42vapkc0D+VqAvqdMOscUgHLVt0sgdm7v6s52IRz
AAABjR/lH1QAAAQDAEcwRQIgY1xt6tHDVcLi48CSmXabP02uvmd+3O+XUu6LHEpc
cAUCIQCHjd0v5I4XwMOXl6GIyR5DjbQtSKCDm2CNoqlImeSyqTANBgkqhkiG9w0B
AQsFAAOCAQEAczNSqEyAfgEOkimuBU8iAZsuDn3GafeoVy4WxsvjUJq8TT4wbOc0
bkExwwNigtQjRFF2iotDQqkpP0I5jJOCGSLh4xHTq6JXK4i+ImqO5RuNubBEZXAW
SX92OkRDz7JyNiIeD5z4bvnnoYksiCPDTr2gP93968/MdJxVkZ/KKA47ZFO1dFfd
QjwDZ9IJXphxt5nNe2zFhiUfjH5CWRpgen5a1cr2ccv6jJ5dValqVX7kLlMwrkMh
aQYACfG5oPdZbrZKdn+znbWzlpByyfOnQ0Xp+oquLrSk8+Q6JGkjLfi1EZ4ZXlQ/
6hTm7ilVs1fe5xKzwecHyjnbB3JHSeqDmw==
-----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 345159153858892524398134431152614344054313
 . . . . . . . . [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 2024-01-19 03:05:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-18 03:05:24 +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 833030444845731692354405904962111430519089911922512180887373063936010640313379470606410039796519096423724917561403471225716468492248194014765762801190828579655926076069526907665244213076294200594951731221559341872179143456845380853783481955974914349415684471133030376968818282491547446443965625868611393269575904952008862773676741979318228810505974294475164214398909160769901664173398363321090511406314740752158431250693692441236046130328728915754379262709475109746252523129716427733816337857092184650125209785117934646578334092473293441919270976594306200776649413947164401481212778689722064246568021790104583853226908958396950735175652232847723683133036436000325138276858613845623960900332896786986390977537508480961103953794187249932949651726525435750820498014164802831888670441111452060302244355281589355715951109518812807698957010573570384396636272119620704877132597134320178393697685685681671014900129370303080439473672980254401101031150020982136829747819626946637739039381062669372232355469277159757871728001674642917205493528309836853849065359800198473529483537617256358830834769928091175603340111080679087790051658702896372639988167475729022722851617601129876012538745793025010536060743124769831143038036032097159462073143097
 . . . . . . . . . . . . . . . . . . . . [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)
							835c1467de751e63573e89fb9959630abfa4cc31
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d1fe51d8f0000040300473045022100816ea434543b6b9b928154b1e9017903d6b7b11efd9546ad95e08162064a641402203ab8c1472b1333a4047938f0b05b3150964a709a47d4b12feceed8a70bd1420300760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d1fe51f5400000403004730450220635c6dead1c355c2e2e3c09299769b3f4daebe677edcef9752ee8b1c4a5c7005022100878ddd2fe48e17c0c39797a188c91e438db42d48a0839b608da2a94899e4b2a9
 . . . . [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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