www.singularity.is

Issued by R3

About this certificate

This digital certificate with serial number 04:b9:19:c5:38:dc:07:a4:a1:63:7f:12:b1:2b:b5:40:47:9e 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=www.singularity.is

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b9:19:c5:38:dc:07:a4:a1:63:7f:12:b1:2b:b5:40:47:9e
Serial Number (int): 411435636343037855563756568276686904248222
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a3:9f:4a:45:a4:44:5e:8c:53:2e:97:58:dc:42:a3:2a:10:ce:4f:33
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7e:63:80:80:09:3e:d3:74:1e:53:1d:50:e8:d3:6c:89:be:b0:9d:9c
Fingerprint (sha256): d6:fc:88:65:5d:d2:0c:29:46:18:75:b3:6b:20:f4:9d:45:e7:3d:3b:a9:51:fe:80:1e:cf:97:1c:fb:5a:3e:24

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

Revocation information

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

Check the revocation status for certificate www.singularity.is

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.singularity.is

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

singularity.is
www.singularity.is

Other certificates including the domain name singularity.is

(limited to 100 certificates)
singularity.is
imep.ba
dartsorakel.com
www.singularity.is
capital-plaza.2ambh.com
imep.ba
imep.ba
dras-rs-dev.singularity.is
monq.eu.com
dartsorakel.com
capital-plaza.2ambh.com
imep.ba
salescms-dev.2ambh.com
imep.ba
dartsorakel.com
www.singularity.is
capital-plaza.2ambh.com
admin.tracking-dev.singularity.is
capital-plaza.2ambh.com
monq.eu.com
www.singularity.is
monq.eu.com
capital-plaza.2ambh.com
chicago-dev.singularity.is
capital-plaza.2ambh.com

Certificate

The complete raw certificate details for www.singularity.is in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvvXjAK1Xgm3IQWs+e+2D
nltu8c2zjBjODJdzCQbxhjldyjYuQq/eDzkxNuJXZ6Wk/EIKde7EczhtdWisbpLN
3+5Xsq4SeNKPCfD7EpciuZbjsifFUoCcLFLSfnxHaaTxDEpUyuWNciLYnIGNTMeK
EAKvVqgb3+xyYakBO7gpbWmFKVYUdWHXlFvqKAWH/P6k7otOtT59OUCrvmH+xO4w
sIjAW5rpdYl1dlc38NoTHkB1LpEIq8fg5sY9sME8pJ8BIsB2dpxt6/eltBGR4o8w
OADAZkDUuO4Fw4J2T1bkQMVr63ON94s5M/pSNy467H/ZcirnzrbD7ttpVtEm/+N8
wwIDAQAB
-----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 411435636343037855563756568276686904248222
 . . . . . . . . [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 2023-12-04 14:02:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-03 14:02:50 +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 'www.singularity.is'
 . . . . . . . . [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 24106529208758003190047760790270002569208187575330608881268157291733445233988794582241486580386171274316036813219856903100454870399509692028551096493069342936165712060189573444840856862918906572792685643598599525011349631161016098781794011464800261161544433753693562131069929933898991153498297518855743804035017396720543819598253999575448231928731049832581256033110465128000786007484265106873360433983350164917900171865139073717141171875297456567498860994296266935330567101696822598968985682367623489346372316519356171494359493280013296610812990673700998307836852855352960678726009141074351310576160529172534963436739
 . . . . . . . . . . . . . . . . . . . . [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)
							a39f4a45a4445e8c532e9758dc42a32a10ce4f33
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'singularity.is'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.singularity.is'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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