ctc.com.br

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:9b:42:cf:58:15:a2:2d:90:f5:cc:8c:b9:64:5c:b4:ec:33 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=ctc.com.br

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:9b:42:cf:58:15:a2:2d:90:f5:cc:8c:b9:64:5c:b4:ec:33
Serial Number (int): 314169430307763751125579973885318453849139
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ad:5d:74:44:10:a2:a8:df:4d:d7:b1:9a:86:5d:ed:9d:b9:c5:42:53
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e4:4c:03:e0:31:5f:25:52:ee:6c:44:7d:dc:8a:d8:82:b8:8b:26:f3
Fingerprint (sha256): e8:19:2d:06:cc:bb:d9:7d:5c:35:79:58:63:b2:51:0b:ca:f7:b4:c6:9f:70:6a:9d:6e:98:35:42:56:f6:ea:b9

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate ctc.com.br

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ctc.com.br

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

ctc.com.br
www.ctc.com.br

Other certificates including the domain name ctc.com.br

(limited to 100 certificates)
ri.ctc.com.br
ri.ctc.com.br
*.ctc.com.br
ctc.com.br
*.ctc.com.br
ctc.com.br
ri.ctc.com.br
ri.ctc.com.br
ri.ctc.com.br
ctc.com.br
*.ctc.com.br
*.ctc.com.br
ri.ctc.com.br
ctc.com.br
ctc.com.br
ctc.com.br
ri.ctc.com.br
ri.ctc.com.br
ctc.com.br
ctc.com.br
ri.ctc.com.br
ctc.com.br
ctc.com.br
ri.ctc.com.br

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxz0V7aGtYNaJcrdXFkpz
FOQ0ryW0DpfwIkQram8HzV1RPb3HDmOuEbZXUfb3yhiAs48DWg4qrUBsPQhvm6S2
6evt/ydelmOWo17E0nbXAFJKNJId8woIDT7DDuQ1aqf8u8SZPcuNnylonel/XZ4b
KIDnB0SKNoe84yIYg6jyds3rU1twmHUNlXiXF7m295A7pn/JifRSIlVYIo5Pkc56
zB0L6F06HSIMXTXIF2EvhGT1qZx7C1N8oZjCOO56TFJxuFo6IhgYJ9acnjCzo4vf
32a0bJxQPYVFLpWQRhLIS1+EEgYujZK79Nb7O9mKMPlbcSWimkyEjpIk8ildJ57E
dwIDAQAB
-----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 314169430307763751125579973885318453849139
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-25 13:32:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-24 13:32:15 +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 'ctc.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 (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 25151545148500179748449700002769513070924977393982894004239528597005552228963482709092071661406522127085375072512674609733216629528320515473583005097111816900480471055495108941999413930813339583468859215344596382299264323917957341812100838114877732962958564384332291252880631659325672088431541222685912247992070209329341415904973162764008511949758450624648897874523857014094559693692793375251195776470125099114039051713467355652306978276821062601511346890495230356532937866253208230485906060343658501738213421225787927385712517912363725455898019541348072968032360731651826207672417575031134864779599507798585392415863
 . . . . . . . . . . . . . . . . . . . . [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)
							ad5d744410a2a8df4dd7b19a865ded9db9c54253
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ctc.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ctc.com.br'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fdd1e1d4000000403004730450220080a507acf5fee3ba280d10229e6687fabe8928e1aa5b95cff48d4fe5d1e8a1e022100eb76c8dbb4aa7385e2daf65d9356c0e9663b9061f89e7ac77b6b689d1749f2c700750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016fdd1e1d5c00000403004630440220306cd90e6071613a21ad7d5b8aa36322c8f992c5710275333e0cfd1ba3d9777302201a626d486fe4d49a1861a510a913dc8aa2d803305edaf7df1d4ba9d7a5f777bd
 . . . . [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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