DV SSL/TLS Certificate for *.ruydelacerda.com

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the *.ruydelacerda.com DV SSL/TLS Certificate

This certificate with serial number 05:e8:4c:63:7a:7c:a5:33:81:23:e2:7b:9e:01:0c:b1:87:17 for *.ruydelacerda.com was issued on by Let's Encrypt.

With 6 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for *.ruydelacerda.com provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:e8:4c:63:7a:7c:a5:33:81:23:e2:7b:9e:01:0c:b1:87:17
Serial Number (int): 514608476633856996399855444302309159438103
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: d3:cd:dc:7d:fd:27:8c:a9:a3:99:6f:23:cd:94:df:8d:e5:14:f3:a9
Authority Key Identifier: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (SHA-1): fe:f1:cd:5b:dc:cd:75:ee:e4:b5:ac:2e:ad:b5:d9:7a:d6:71:9a:4b
Fingerprint (SHA-256): da:9e:c4:d3:72:7a:b6:aa:06:7b:cc:77:c9:ed:77:fe:7b:4e:e1:1c:5c:31:94:f5:61:27:67:3c:93:5a:22:4b

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/24.crl

Check the revocation status for certificate *.ruydelacerda.com
6
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for *.ruydelacerda.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

*.rdl.pt
*.ruydelacerda.com
*.ruydelacerda.pt
rdl.pt
ruydelacerda.com
ruydelacerda.pt

X.509 Certificate

The complete raw X.509 certificate details for *.ruydelacerda.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApoNMcUi67FHegr5+tTjM
RHqll0r9yWYTI7MeooAjZDxRM4LscdAzMIH+LXVOnQpfO2JOp9ynFZ6eth3hi1mP
IaCEs2/pdJDWKANNQi4mc9IQ7qUMAzEozJ3PT2PeIftsMYKndtsfs1XzAAjMNh2B
ytHV2/mxsywZjbfNF1U2ulzT5oz8Td+tt1qdVgMOBEsfdQodjVvYkXQrdJnMKccm
+GFWyoH/3FEQLY/SgmFhXhnNEZLxWkXlQ9iV4pQXIi9PXB4Cqn5H6tBZNnVehhOj
U5VmFqtblML+5/uqQ8lyITSmGk7eThm7AGP+fRlSvvliHPi4Mu9nVgNHq+Y7sur+
YwIDAQAB
-----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 514608476633856996399855444302309159438103
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-21 21:46:03 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-19 21:46:02 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String '*.ruydelacerda.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
 . . . . . . . . . . . . . . . . [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 21020304378897469428675838871296142446687710429086720093244222072929722652604222098968224530397864190890814671778443804039682735862683704997109605357132816985846900038595691485928871593864616838407879298345456375588551441265931254866629925512458483034133087220577674602258309433187478273094667843229856230412124462265575090038164132727202116959313420172354346129833260827735682243293593828658885543191129278717763992314683119417558424734346500536307623376450625560758225730878203279557207153658360904113984297092793682645901592521786640861418734240204135268591334437849596659225015187159049077486343406165660652994147
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							d3cddc7dfd278ca9a3996f23cd94df8de514f3a9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (94 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.rdl.pt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.ruydelacerda.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.ruydelacerda.pt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rdl.pt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ruydelacerda.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ruydelacerda.pt'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.c.lencr.org/24.crl'
 . . . . . . . . . . . . . . . . [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)
							00f000760012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a0000019794aa398c0000040300473045022100c8deb609fb80272d00e73e85d41ee04dee22f75f22656adb0c803ed3f006b25702205074e859eedb80d76b63e769fe159062f43beb380b0c680425ee645448ab45a6007600ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe00000019794aa415c0000040300473045022076c3e841506820fb550d118c112f2438b0c211f41097a6da5945d7d517d4e895022100ad72a655c124dbb40e34c93d4b410d0d6778069a5baecbd69a7ebe5448d11cc1
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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