ctc.com.br

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:a8:2e:31:1e:b6:b4:3d:29:87:18:12:90:45:11:dd:78:c5 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:a8:2e:31:1e:b6:b4:3d:29:87:18:12:90:45:11:dd:78:c5
Serial Number (int): 318565694971298171067924137295459789928645
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 86:0f:85:1c:fb:22:e9:f8:cb:82:cd:12:38:bd:d8:d1:99:fc:5c:09
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 63:50:82:c8:3d:ea:25:81:33:b3:a2:65:90:94:a1:5c:06:28:18:9c
Fingerprint (sha256): b6:0d:89:38:cd:b6:ba:33:fb:3d:21:af:41:29:42:63:2a:e3:b4:2b:8d:fe:2e:75:85:4e:4f:0f:be:91:c7:0c

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA18Ip1FnlXYXdnbuRecqb
jIXOeiCwiTXV2rw6lC1kEbeOQt5baUXtWUpZjfh03UkhtTvC/UQ/B8PGNnxCPv58
cUFoBpzFo+d79ewP8ObSlvorjub9R21115Z6UxFh06gJwT3LK+iJLmdu0xMNcqkl
nONApoIXUzccNQ/OuKE505Q/xJoimPPlk9308pU856Opapi0E1Ux+Mgti+jTn8Yu
GQpd1krjNYTv2xL8Urbw2VKU51KGQAcBSJliJ3OpnCOhV+eXVRHGngBAx6GW+u1M
jKx6nlqQvTk6IWYftyHrsh3edxOD+QG3YgaO4Py0EKMTcqiQIZXv6ApYpay7N0r+
LQIDAQAB
-----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 318565694971298171067924137295459789928645
 . . . . . . . . [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 2019-11-26 13:32:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-24 13:32:14 +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 27236981106987817474875476434700937326031329824193822446272668519243589807544863357998435740826295233158004673213818491663171135330228232485584607430579228779682412105246756747201506542481183346723725162380813743674255685933559049464481854434276255799822991681069784923268870273952020796662878457954911528871722564125583822405142925453978515791909577057638146006005763268294509515808242440250134442731055304324584985265280486296410103467403555574774797331283994126005136019123680362965860148318107611361752709503014644876170808796794935306040186794134511797502944357885747159397242356234620952675403224661396766260781
 . . . . . . . . . . . . . . . . . . . . [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)
							860f851cfb22e9f8cb82cd1238bdd8d199fc5c09
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ea82086380000040300473045022100853bb3608c92084004ee7a3018f13aa7c323a3552b7645803f9a23d85769242a022000dd432963cb6886938db15a6eab456fa641fd8a85ca53ea46b24427b86ef87e00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ea820868c0000040300473045022100ff4a69cffd5af8304230c5f0c2b413eb028acf74e3a766eca9ab7f2c98f430e902201d3116835efa27147cbc2c52be2e33655bad9879de81b3af7d39b9cf5643ba83
 . . . . [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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