DV SSL/TLS Certificate for rdsl.com.br

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the rdsl.com.br DV SSL/TLS Certificate

This certificate with serial number 06:ea:8c:c6:58:8e:8d:68:d8:35:8f:eb:4c:d8:b9:dc:d4:9b for rdsl.com.br was issued on by Let's Encrypt.

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 rdsl.com.br 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): 06:ea:8c:c6:58:8e:8d:68:d8:35:8f:eb:4c:d8:b9:dc:d4:9b
Serial Number (int): 602486911240395166782311828205518523782299
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: eb:24:99:d4:74:75:91:59:6f:55:d9:cc:38:8e:5a:1f:d2:4a:b3:ea
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): 49:de:a2:db:cc:23:4f:10:ad:97:f7:4b:d1:fa:01:99:58:70:76:a0
Fingerprint (SHA-256): 8b:e9:c1:fd:c8:05:e0:ff:64:ad:50:e8:94:7b:a1:ed:ca:36:11:ae:48:cb:aa:f9:4f:de:bb:fa:b6:e0:7f:c7

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/28.crl

Check the revocation status for certificate rdsl.com.br
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for rdsl.com.br

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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

rdsl.com.br

X.509 Certificate

The complete raw X.509 certificate details for rdsl.com.br 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 602486911240395166782311828205518523782299
 . . . . . . . . [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 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-26 06:22:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-24 06:22:41 +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:19|false] PrintableString 'rdsl.com.br'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 892211063644471863298877781211761087328018685410658889363278457782044492751014395566549139965423488749946406631307008212039265037527679645863265773438852976793204727628188549337844182346815054562886255459844356388366752205079947210614816151629287625505215571234559220152975936216375376086322375522161271715929912158450419251568945640860785811984780605940797499442423359966433297382188797381827388189286585064364458271939899289347804372274425330113129606930029244345305693655835428915463357405315866885135727605805052881906453180593636991749063890728909389729611363110191197375130275184863993834236193659953206992288710396893569958993068601651554442041150923364204428002275937748211478944849329314470107946386171532640914833806694614434247788368039796509483672463356895332514049603110348734393081395016579573527723303616548676531644492300365624317027628981873425998038789861589544507311192740405165021798145342465794922967001610941768826102997856383873224335951106026852152373987712351444171809154394494995340353106447144269690056897392254333078245972375085802105602467146257330626267971607723304103261253813148260746409341998936432345511450563005993111372747809451025388406108884776923526483716858294667026294255371180976279195885449
 . . . . . . . . . . . . . . . . . . . . [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)
							eb2499d4747591596f55d9cc388e5a1fd24ab3ea
 . . . . . . . . . . . . . . . . [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 c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [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://r11.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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rdsl.com.br'
 . . . . . . . . . . . . . . . . [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://r11.c.lencr.org/28.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500dddcca3495d7e11605e79532fac79ff83d1c50dfdb003a1412760a2cacbbc82a00000197ab1cb56400000403004630440220769e0b72cfd30f8d5a9eb9b9e074a126a4d8c65681b6b0bf8432eda8d373db1602206d62050910177000d6c46126493c0b4f26e2d7332f61178602c9307deb29c64e0075000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa3400000197ab1cbce3000004030046304402204f809bc89c49651bbad3e8e880f13a39e0ddbb15417d8d1da2501b040973bfb6022078e0a36a5a058add2b0854ff56b9e899ab3250d83e17a6c59475085c90acf3b4
 . . . . [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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