curio.io

Issued by R3

About this certificate

This digital certificate with serial number 04:08:c0:72:8e:21:40:27:a2:9f:fe:5c:17:f8:16:e6:ba:ab was issued on by Let's Encrypt.

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=curio.io

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:08:c0:72:8e:21:40:27:a2:9f:fe:5c:17:f8:16:e6:ba:ab
Serial Number (int): 351427209242177619150367963781313121925803
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: e9:04:ae:9a:da:a2:93:6d:32:4e:88:ad:58:db:29:19:f9:80:37:c5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 9c:97:fe:a6:66:ee:f5:0d:65:27:ad:d3:3b:ef:f6:b3:ca:15:90:d0
Fingerprint (sha256): b7:7b:a4:38:cc:eb:e3:2c:66:7f:c4:4d:3e:1f:7e:e0:44:96:ae:51:70:53:8e:29:3a:a1:58:fc:54:e8:e3:ca

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

Revocation information

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

Check the revocation status for certificate curio.io

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for curio.io

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

curio.io

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Certificate

The complete raw certificate details for curio.io in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsdLyXkLZpTAV8fyBJ5s/
VbrmrI6qIDTU/z7Hi/70RmL6d6Q+BUQWZf7Td/qBblcLadtOHTgX1m7UuSYA5VV+
MUDSt9Gx11ALJvoEx1YADFRsMeAr1+ANKjHmrBOeOrxjE1fAAzODmNaK3LG/4tmm
7tynSRCKYSQT7hqnFEdyfbI9PkgAVJ/SRTWbmK0mtYNMXSn1SL1KvasnTNzYLHbG
J3KMPjzCKTYdfOEBnsXASpXp1EHFIzseBQ91n+n5sZ0ymd+jAqedPO7SJmQGrjpy
nzZm2cORS3Vx84m0hnz7OHr7ZuxM3lIwnSSzQDVt9RyTphMGRuNbbNucG+iQPU6u
nwIDAQAB
-----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 351427209242177619150367963781313121925803
 . . . . . . . . [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 2024-01-04 11:42:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-03 11:42:17 +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 'curio.io'
 . . . . . . . . [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 22448201698759747238011496182745612065272458014115654646056307500902749783044549042272048948312059254411734231494999001789660778355492290692601983145861258972984175099865592873242776176396695248973709885315845440856071247026552141014492173912524855074698521711919336945108578792821657182599580380885089315185500228123113101435754012896727378353745429928359488139737363093277199687086782879736791230938455644921617323474928890393326513459695497483437102180685171204959280102114090479208787294719519047415463820650132520258391149660167946349682380355765198874588073748493115648631321000193055341999519151951856576409247
 . . . . . . . . . . . . . . . . . . . . [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)
							e904ae9adaa2936d324e88ad58db2919f98037c5
 . . . . . . . . . . . . . . . . [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 (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'curio.io'
 . . . . . . . . . . . . . . . . [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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cd47ef2980000040300473045022017e1a9e7bf0a38f34d1b41324963bc4d899fa097f09388f6cdd7735daa75f5d7022100df3545109988b9eaddeddf3883cdfed858bec1cb867f69233af6872c7860ab1f007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018cd47ef29700000403004730450221009e6c9f24de72a3c979c75551f6266594739ddd04db649192e5f784879dbba91e02200c8bbd4c62a4a8c95277dcd269d54f32e120d0f7abf96b7bea1ecd916d0ea537
 . . . . [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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