ctc.com.br

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:3e:98:b5:7b:5c:eb:a3:3c:bd:74:11:97:02:86:bf:bd:0b 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): 03:3e:98:b5:7b:5c:eb:a3:3c:bd:74:11:97:02:86:bf:bd:0b
Serial Number (int): 282637349507567925210604248575319497227531
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b2:04:97:e9:5c:c6:eb:2c:df:b2:25:c6:7c:86:1a:24:df:63:e2:f8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 18:07:a7:71:ee:37:60:0f:3f:69:3b:1c:7b:bc:a0:97:1a:04:2c:85
Fingerprint (sha256): 92:79:b7:84:18:1d:46:c0:97:32:1b:1c:f2:cb:07:0f:0f:9f:99:eb:81:55:7d:70:1c:29:2d:92:c7:dd:81:ce

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxTej0fEOEMqIcU4aaFbF
tSsmIi5JLOc7rxbjadxqfblK2QtQ06x76bSD0XZeG1hrK623g0OMPiC7TUf04q7G
iJCZOE5eRvFr9uUoZ4dJaBp7vXbGsaDptgu+U5ji0c/PTEg+MnVCJJMLgO1w4rNW
JZ54u3tAyyYCKwInOIzKAc+rYs8BEy5K/D8rWIxEwzFJPd1UkfjK2uSDPjtmtsQ0
LuROJptNLj9UHjkz+QfSczO+6oyj4a7+xY27Rh9Hp0Wq7BCaTPPvetcX/MIqKSGx
9RSPWwL1Gt1R2Hr31mGtwh8NwMMQysDEOOjrMLFYsyTf1nWXE6r8JaSd9jI9ju0b
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 282637349507567925210604248575319497227531
 . . . . . . . . [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 2020-03-25 13:32:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-23 13:32:17 +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 24896383146546325921457294510934175103527857112134276724323711402249420399083566375526935787756291395716777586957275652332029583721343656206657436023466720284184553840051785368112318739112249394113088333323023450067672022372059290225683678833228191698886662896932196974472817620308729483406997685072360413771915003114363179616814206597493382366443251159780384594086382129145359783914243959829345347446989124078281863793981336149084927776083800339848771007155398583033581696689985729621577921621323128364940086040185563943895208173773106177917920421981644787340718236854712431789790519836543185864596976561093862038371
 . . . . . . . . . . . . . . . . . . . . [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)
							b20497e95cc6eb2cdfb225c67c861a24df63e2f8
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000171121bb3180000040300473045022100b28b239431616cb9287d9fbba754a2a2f446bfbbbbb90297db5715c172b216cd02203e75d2a6a8b8ce93b2e3e3f553dbcdaeab39d2423b5b6e785a8ea1ec8533f454007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000171121bb3060000040300483046022100cd22de831e444b25e1b6820e4f42cd6425c93487eef35729bdcce7b4e38cb44c0221009c81ee9c5293623ee2bff74586ceaf0851515c9882b460d501c20cd5e9d336c6
 . . . . [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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