cet.edu.mx

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:12:97:df:15:94:c4:bf:98:9f:b6:21:f3:4d:16:6d:d5:85 was issued on by Let's Encrypt.

With 7 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=cet.edu.mx

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:12:97:df:15:94:c4:bf:98:9f:b6:21:f3:4d:16:6d:d5:85
Serial Number (int): 267663812147137868261880671244740209792389
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e3:aa:ee:7a:b7:89:4a:1f:40:47:1b:ab:ea:c0:a8:5b:93:c4:f4:ac
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 68:94:6a:e1:bd:57:25:91:1b:b8:fb:6d:49:75:3b:3a:b1:6c:d6:55
Fingerprint (sha256): 7d:ad:e2:52:8c:d2:3c:a9:35:40:1b:10:f7:b8:20:c6:81:5d:3c:72:9f:92:5e:46:03:7f:55:76:57:3f:b4:1a

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 cet.edu.mx

7

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cet.edu.mx

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

autodiscover.cet.edu.mx
cet.edu.mx
cpanel.cet.edu.mx
mail.cet.edu.mx
webdisk.cet.edu.mx
webmail.cet.edu.mx
www.cet.edu.mx

Other certificates including the domain name cet.edu.mx

(limited to 100 certificates)

Certificate

The complete raw certificate details for cet.edu.mx in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvnwk+ZaTBQJZIX3xMCHa
2VWmlJYzycTp7+bbpbeyaquv/vUMYKaV8MOk6KdMeQHgBR0woTm+8otWbJrpyfD5
pN+8RuWthfHdxfdyyMRGxuJbQQUZE1wbVtVyMusYvu+Pl5B8pcJ1XVyc7CkNJEbv
3ZvKCBOSCme9EEXCxaIDckNzWqTFMwR80k44iOaX+muj1niOrFYJYQncAXVVORdd
A4EB0xENJeQc9mzz0sYA7CDqDCRL9RFi7eLCrcC20+e/rfANfXwGjC/R9eknggsy
5bjMOPDd4O1a/I5lDSeOIlXqLi9YIFX+0Yhb7TMd+ohncPLXCN6UvfBAixA8uPvZ
kQIDAQAB
-----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 267663812147137868261880671244740209792389
 . . . . . . . . [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 2019-09-21 23:48:41 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-20 23:48:41 +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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'cet.edu.mx'
 . . . . . . . . [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 24046495845289731373430663785357839175395365412183060560858177056606298692378686650994081214891329554562178939247901791770076564104862870397044742035930704675960288304223898888486323982370012883296930454949994758583085165735225935902621474771354463949048931785671742896228642043747481383703253121466905059698413973794011850515789884941782069494010983663032849408112680313605074944589612512128670066532879066734892453763847216798470675539434483902031209157588469358431004408805152710876210741603886554287504820068295835933498749182877079573822331467402716069704094728202830319154468757527747985553778568044810770045329
 . . . . . . . . . . . . . . . . . . . . [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)
							e3aaee7ab7894a1f40471babeac0a85b93c4f4ac
 . . . . . . . . . . . . . . . . [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 (132 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.cet.edu.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cet.edu.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.cet.edu.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.cet.edu.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.cet.edu.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.cet.edu.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cet.edu.mx'
 . . . . . . . . . . . . . . . . [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)
							00f1007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d567131460000040300473045022100a5a3eed6734acbdf6ca03ceac7023c4505a9027aac5ae6c83cf913375c272851022017f57a879275d82eb41e0397a60505ac854686d354d164a8f9890c6d8a25ae2e00770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d56712f910000040300483046022100ebe4b7e3e72b6ec8c713798d1e46f2b0f03f72d55c92e2f20dda289557836ab40221008057e16b2a915c9a2619b2cf8718c33a312b4143eb5ab3d02669a6f9bb278637
 . . . . [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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