barda.com

Issued by R3

About this certificate

This digital certificate with serial number 03:16:49:cb:a5:65:e5:ef:4d:86:fa:88:9b:61:d9:45:2e:e9 was issued on by Let's Encrypt.

With 13 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=barda.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:16:49:cb:a5:65:e5:ef:4d:86:fa:88:9b:61:d9:45:2e:e9
Serial Number (int): 268921160902166757947894939179397950025449
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e5:d5:b2:eb:f0:97:06:ca:11:0c:77:a8:6e:ff:9a:3f:cd:72:2f:47
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): bd:c7:71:d3:a9:3d:66:b3:27:87:f7:94:33:f7:c2:44:0e:0c:ad:66
Fingerprint (sha256): e8:a9:07:1b:94:8d:cc:9f:9c:4b:f1:48:95:62:63:6b:71:2c:f7:3e:8b:57:69:4f:6a:74:87:46:3d:c4:a1:18

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

Revocation information

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

Check the revocation status for certificate barda.com

13

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for barda.com

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

ammomoney.com
barda.com
emailtoo.com
erziehungsstelle.com
gadonate.statenationals.us
garbagemasters.com
hempshives.com
mitrebox.us
pearl4vip.com
rentacar4vip.com
sylabuss.co
theatreblogs.com
tym.co.in

Other certificates including the domain name barda.com

(limited to 100 certificates)
sculpit.world
vertera.ca
shareholder.vc
n72.com
thehomeschoolminute.org
robots.cool
dumptruck.ca
cleanslate2019.com
ebaytes.ca
lionheart.mobi
lionheart.mobi
franknews.live
1081.org
vertera.ca
abuja.work
hudson.bible
antimaskers.club
lionheart.mobi
trade.limited
soil.ca
robots.cool
lyve.org
ebaytes.ca
dejting.club
lyve.org
ebaytes.ca
34755625397.ca
beckmann.org
lyve.org
avail.world
ebaytes.ca
lyve.org
ebaytes.ca
real.space
christianschoolsearch.org
barda.com
loci.online
cleanslate2019.com
cleanslate2019.com
5272653.ca
ebaytes.ca
5272653.ca
barda.com
thecoachinginstitute.org
mediaberry.ca
ebaytes.ca
sculpit.world
shithead.world

Certificate

The complete raw certificate details for barda.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA34sLKHMEUxT6HE6VC/x9
bphI6CrZ+C0dikd0aA3ynueOdmtgb35s9dBU6Nv2a8jEvSdfN1OU0agSpqwFEi6J
uLTbOgQ8DWv/5CCOmczKQMPTGHcHvWt4l5U2rOz9FJD4im5EKzLHCdfQ+fkFgY6Z
RbMaX3uAbci47NvF/BG6UBkCSeIdu5NyYp+g3bngpcYnS5yikQgzBMoMQjyWLKsh
eSAH9myVa8CZXddC2T9jLnnuSi082JEVO5M0avPraqF2/gAWFvOpYZ9QiRpoy85c
awb2/fthWTIYCc3fbJVdHeHJND7f8cgHxbUhGEI6INbPfsWo8xvSpM/Qle+7Qh67
QQIDAQAB
-----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 268921160902166757947894939179397950025449
 . . . . . . . . [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 2024-04-15 13:00:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-14 13:00:32 +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 'barda.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 28219706955117116601838387472847691857883695627024033589418740917946235943139582404669520420346044008977583514780772867727099355949819967165754120491144067244798559102259186166619802202000189124436050952880657126000426439687963358472375025276084210297431390698153705367032809705706320538486837033506339579647358112993238778947771967840424559140019707166325980890171437051381360782259013053284661527082990145531114173569945439985944310530306887014918690956615218898455908125276175751143416079075169687205073468974284219964977391804450559775132392174359595494655214347062289522855243481466858565757127651845500796058433
 . . . . . . . . . . . . . . . . . . . . [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)
							e5d5b2ebf09706ca110c77a86eff9a3fcd722f47
 . . . . . . . . . . . . . . . . [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 (217 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ammomoney.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'barda.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'emailtoo.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'erziehungsstelle.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'gadonate.statenationals.us'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'garbagemasters.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hempshives.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mitrebox.us'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pearl4vip.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rentacar4vip.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sylabuss.co'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'theatreblogs.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tym.co.in'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ee20f3edd0000040300473045022100e17a4f26aa8fedca014a36efc5579dc346db3e7285b8f7fe2f40a04d889995cb02201405ba7d0f9e9dc339784a96bd09d92102bf30b333c6997b3320a69e9ed50b750075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018ee20f3f17000004030046304402205574e74ce6177d53e1973805473922dc272bb1b99a07c8ba12966c0eff839cb20220274b9c4fc787b8d157fd84422851f362b2e54b7155f3be7cebbbdddd3620afa0
 . . . . [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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