holdur.is

Issued by R3

About this certificate

This digital certificate with serial number 04:e2:05:f6:93:46:78:31:82:c5:33:25:69:d5:7c:1f:9b:32 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=holdur.is

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:e2:05:f6:93:46:78:31:82:c5:33:25:69:d5:7c:1f:9b:32
Serial Number (int): 425360885083276584645062512127789567548210
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a1:17:d6:33:58:03:25:88:39:c7:06:c4:2b:f7:0d:17:fe:b8:d7:94
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 48:db:69:0c:07:91:69:04:dd:a4:2c:ef:65:5e:8a:2e:c5:35:95:c0
Fingerprint (sha256): 08:6b:60:09:91:d4:24:5a:9f:04:19:f9:29:bf:dc:de:0d:b1:90:7f:0b:19:71:76:9b:d7:55:e1:74:df:37:44

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

Revocation information

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

Check the revocation status for certificate holdur.is

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for holdur.is

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

holdur.is
www.holdur.is

Other certificates including the domain name holdur.is

(limited to 100 certificates)

Certificate

The complete raw certificate details for holdur.is 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 425360885083276584645062512127789567548210
 . . . . . . . . [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 2023-04-08 02:55:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-07 02:55:14 +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 'holdur.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 762639458487880327506282135803017449242937606299253403323645214803688701758920205288964208007826318799950566379957833118991050756505991594433542897575777227672138461494652239798649757695025563628293995953041518923517643257605123407013046919850150817099979053394261249272432443062626906076448136712944187985936623233224315785747813586495444555439993490973764678327345453614268180957088822104994187960146501515357368792025887953432127885791780445631196614545238575433277563388923362518512375566517750263099375162459269398231851752027066264957853148216616136045507891376057894220035791399534144623602590269101296752126425636329328202119831443627425092673914836435700496915950124265363140379725974211055305790594577785446901965864146948287366421922646878823356981533838497310357167125859988100746173300982529639796211409589112173322248536109555808978211485628949914544186263146390051551622338444426989668576067081511990714886945197941509529064090288354282481553203388840505477962041619398461251977868059273369932881949112656565205496397388122634355480911724296249899910219874105354588581268248725542464473046040193545478098221181622853132754179329385957334933878030832682228016597147272261139399741865886288835994560546156919373659903567
 . . . . . . . . . . . . . . . . . . . . [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)
							a117d6335803258839c706c42bf70d17feb8d794
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'holdur.is'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.holdur.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001875f0108220000040300473045022100ba620491b6a23570b5952bb428444d277b3e6d7d32304fcc870945fa4302717a02207887ae58fcdc8645704c8a56e3dc7138e66f33a3698b385916e5b41f32ccaa020076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001875f01083600000403004730450220470f44f29781324f0da3cfcb2177727833434b75505ab440c90d88c0ead8cf1902210097f611a41c29d441c7e7d2965cc88d8de95ea690f3d194ae54a2f561da7f9612
 . . . . [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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