cat.mx

Issued by R3

About this certificate

This digital certificate with serial number 03:4d:70:f1:d8:43:29:95:6b:5a:25:e4:1e:00:f3:2b:e7:97 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • 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)

Certificate Subject

CN=cat.mx

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4d:70:f1:d8:43:29:95:6b:5a:25:e4:1e:00:f3:2b:e7:97
Serial Number (int): 287688729313585449897297716413098768459671
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cd:9b:53:a8:5f:35:45:92:b9:aa:99:9f:0b:e5:8c:1f:da:f8:9a:a8
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 68:51:63:97:95:ec:16:43:af:7c:fa:64:20:79:3d:e6:4c:ea:00:7b
Fingerprint (sha256): e8:1d:60:b9:b1:1f:4b:44:63:52:01:d9:e0:b8:72:87:28:4c:54:4f:07:0e:5e:a8:16:d3:e0:70:ad:ce:2f:a4

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate cat.mx

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cat.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

cat.mx
www.cat.mx

Other certificates including the domain name cat.mx

(limited to 100 certificates)
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admin.ath.luling.txed.net
admin.garvyschool.org
lgusd.org
toltonacademy.net
www.cat.mx
ads.gesd32.org
www.rmcacsearlyeducation.org
www.cat.mx
rmcacsearlyeducation.org
admin.smith.fhasd.org
cat.mx
admin.ath.luling.txed.net
www.cat.mx
austin-es.weatherfordisd.com
www.garvyschool.org
admin.athlosbrooklynpark.org
amjhs.mcisd.net
admin.ath.luling.txed.net
admin.athlosbrooklynpark.org
www.cat.mx
admin.ath.luling.txed.net
www.comfort.txed.net
www.cat.mx
admin.ath.luling.txed.net
admin.ath.luling.txed.net
turner.wisd.org
admin.berenacademy.org
admin.athlosbrooklynpark.org
fhasd.org
colonies.sunrisesd.ca
johnston.fhasd.org
admin.athlosbrooklynpark.org
www.cat.mx
admin.ath.luling.txed.net
cat.mx
admin.athlosbrooklynpark.org
www.cat.mx
www.cat.mx
admin.athlosbrooklynpark.org
admin.athlosbrooklynpark.org
cat.mx
astaro.cat.mx
admin.ath.luling.txed.net
cat.mx
admin.athlosbrooklynpark.org
ccs.gesd32.org
www.cat.mx
northglenn.gvaschools.org
www.cat.mx

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxSfRcM241435dTRLcPa/
mLVJa34YO4yZiFbNP1W6+4XEhf+Gyydi47P7LgdAoei04k0aWiNLAkV29io64X6+
LHHCzXqDROMbImIU+dLyMvtRCHIiQmXpoXu3XEBg3pJon+t/EpD74PwdbkIlbG2n
2ElZz7PuOMBVknIrmh6U2oq95aJcQ1T/8o1BXDV+JRWo7Z0lzx+1cHlW4oliE+H9
UaxaK7/csHEaEu6RMcBU8PT4vfTEmJT0rd6uBZwe9ds3tkbodXchUdxtLTDvxd0G
3uJUWsG8IggU1SJKn+X53It9IK7MMTc/ArWILMjCsJ9VX8s31PAg4yJnooNf0EKt
5QIDAQAB
-----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 287688729313585449897297716413098768459671
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-07 12:18:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-05 12:18:01 +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 'cat.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 24888581128790358785660059501269355206166556885267196130644866431143736326772411197703807738965192770481491582352834946907747450120737322165724311524132283996848677776711937160868083243309608568238847427199714342368641958963618112382652730765309892630389899180660446830358383032045600144034133772945628700509429655146117710109112706908595901686671022922668111976135697467941076596378251037457020832530551092636781018944325296919061283804124405958240290734186345491869126797069491432638927783517611223568019527897300648093765235493168827408215506494548557907394390207337606474852609240402700093670845267802950249655781
 . . . . . . . . . . . . . . . . . . . . [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)
							cd9b53a85f354592b9aa999f0be58c1fdaf89aa8
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cat.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cat.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 (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 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ba9eed29f0000040300473045022046a4aa0748ef5573963ba56b09a20ce25ab1ef1ca255edbb568664037b7c2bfa022100fc351e18b667b1981724ebfb9eafb65cf95eb7c22eee97489506aec41a2f802d007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ba9eed3130000040300483046022100afe979bc1cfcd9fc2ce380b57dd05b6b6cebed8ef05f19c3b672fbad0499e9d2022100a203c9e3e56c2ca189428de38e8df848af404fe3ba5828211f3b199e7889e0df
 . . . . [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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