gardenbench.org

Issued by R3

About this certificate

This digital certificate with serial number 04:19:6e:53:09:f3:63:38:1a:c8:f8:b3:95:7d:a1:c4:a9:52 was issued on by Let's Encrypt.

With 16 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=gardenbench.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:19:6e:53:09:f3:63:38:1a:c8:f8:b3:95:7d:a1:c4:a9:52
Serial Number (int): 357102849142064884075930827636606736050514
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 92:4a:fc:83:e8:c3:13:b6:8d:fd:2a:c5:55:92:9b:4b:1c:53:4f:15
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c0:e3:7c:cf:45:64:d3:d5:d4:af:8f:9c:50:bf:a0:14:77:26:f0:7b
Fingerprint (sha256): 81:39:5d:0f:45:76:75:02:a0:24:f0:57:e1:f1:4d:f3:58:f1:36:5a:88:59:52:ac:32:55:b4:bb:30:e7:fb:37

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

Revocation information

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

Check the revocation status for certificate gardenbench.org

16

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for gardenbench.org

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

buildsocials.com
buymorecomics.com
celina-oh.luminitarealtor.com
chhattisgarhmatrimony.in
fairfat.com
gardenbench.org
helmetcameras.org
hijodeputa.com
hunterscorecard.com
jamesmhill.info
linsday.com
lioncasino.co.uk
majesticconcierge.com
mycotv.com
republicanjournal.com
shibariumghosts.com

Other certificates including the domain name gardenbench.org

(limited to 100 certificates)

Certificate

The complete raw certificate details for gardenbench.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1MpuwtOaYAvur0Z+OZQW
X6PR/OpaDkWrBrEYw5EFuMFSEmmHQBlKHlz5+LkSH0PjefHhUDEs65ETZ9IcQn0n
9AX4jmUhB1GYbbEfqaSxKYMjDTPevKbE9Q3Hg1WjsIrDYqINSD2iFepjAoc2Cfue
wovofwCOtQX7uAJD/vhgc3hoWjH4H2/SxByQ/DzEcdmCPAEA7p5Wd6oRfctXLwAw
+MTccdlRjML8Q9oCyfGmjkooUVFCMG/SUYbKMUtySuy0iADS0p0Szxj/Cy/0eqDW
J+cYJjikVucqLqhYDKpYlWSJhJzolf5A1y6oQMcfAvR20oAY22zjYrzBL3SF6HuL
hQIDAQAB
-----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 357102849142064884075930827636606736050514
 . . . . . . . . [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 2024-02-06 03:47:31 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-06 03:47:30 +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 'gardenbench.org'
 . . . . . . . . [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 26862343918071083877040370937709403586210916613070259360595398575919742565128071675670629031232785373856480892014863089823476478144213908099542531845555461912129451780331929055536029986744138368458130154419625054535233548540961337109681600359406978501479468865987490955358183986571041515043361750806750423886006483188185431457733406988450378045461705375808970891537678446777151453096076195162742435030056651667308783770600325439598783052303837418490183303252988463794699227599573413090444792624564694853928167959574127933254989099426103484300903685876169894593222984951339521132817251934656991251608658327496875019141
 . . . . . . . . . . . . . . . . . . . . [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)
							924afc83e8c313b68dfd2ac555929b4b1c534f15
 . . . . . . . . . . . . . . . . [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 (311 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'buildsocials.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'buymorecomics.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'celina-oh.luminitarealtor.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'chhattisgarhmatrimony.in'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fairfat.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'gardenbench.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'helmetcameras.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hijodeputa.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hunterscorecard.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jamesmhill.info'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'linsday.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lioncasino.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'majesticconcierge.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mycotv.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'republicanjournal.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'shibariumghosts.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d7cbe21270000040300483046022100e074f7106527fa17f2af45b60cb6805220231c17f945a02ea2811e36b3250c71022100e58b8ddaa60862096aa8c183823ad04a9c3498a5b196eecd22e8af0f3dfff2d0007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d7cbe21310000040300473045022100d052e5dc46d64e2dcf01143f34b58a3db8b942de0d0e6e13e07de692757adb76022065feaa88da9997badb68492117e2e32175817ae109fd789b43dbc755642d6075
 . . . . [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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