cat.mx

Issued by R3

About this certificate

This digital certificate with serial number 03:c5:78:33:70:cc:4f:d1:1e:c4:e5:8b:56:54:8a:1d:cb:f6 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:c5:78:33:70:cc:4f:d1:1e:c4:e5:8b:56:54:8a:1d:cb:f6
Serial Number (int): 328532258533156715311586302876818608081910
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3e:49:e9:b5:4f:75:26:81:21:ac:51:0b:a0:38:9e:0c:55:bc:24:74
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 96:4d:cf:9b:e2:14:83:4e:55:5f:e5:80:99:72:f8:38:c0:34:67:1f
Fingerprint (sha256): d4:bc:68:64:74:23:2e:c6:4e:e1:a2:f2:e9:44:e4:ec:af:6f:5b:e8:72:11:40:7d:49:f3:86:8c:e0:e8:8b:83

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

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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
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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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1/LMxykB21gLj11bp7ts
5YS5nJ0n71Uat5YR60EwJE+CEFAxo6g5PAGKOjwI9SJOU8Bbmn+cr7NTX4ryc4g8
CJBoctDfrqDd6vBPPDz1fDsaeQQR4TtP2OatgTkaNhjtwNJ/tVP56EkLDKMWmJ+A
3fTBJbpx3dMCfz7MZT28TKhmLoFI3UFT3pSBtlQkH3GH/vPVX0j4fahLV9B2sSiN
nbqs/gLm332O7DnSPHj/ejfY7vhErJVEDrFfSpB4+R7Zbrgnk+5RQxbAlKtjICyz
LAPKByJthoZLgpVnXlkVBNmGdX+rUBm0yiUbEzTt4gGfFqndl8htGychHGFzJYzs
XQIDAQAB
-----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 328532258533156715311586302876818608081910
 . . . . . . . . [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 2024-01-07 12:20:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-06 12:20:23 +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 27260964667632683093950713161632954820920724405639136026908445268455108998880408642149040918796069931657449299349898574181541238906073973962059063606093757740647490696336540531835726324649700704469258333625655024418250843401631498626483781539498143061403748166222327849144324071283496958563900614028967283284214804935937296292736239981284340812164283357140329580430334230506056758829712596579866808652543221012363916325323993210646893973486021969404634325473991837573534533924083601513114790591911669244118797906026620089157993116564931059687167218558181763659462328756534254132487416504845264717439128989450401279069
 . . . . . . . . . . . . . . . . . . . . [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)
							3e49e9b54f75268121ac510ba0389e0c55bc2474
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ce414e9c80000040300463044022053817772b405223da9555b18a2019dbd145cde170b7840fbd508dd3fc0dce4c1022036cad94d467f913f4623ba89d74eef0d34212caf89f93c0f696ca573fd4bcf020076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ce414e9d20000040300473045022028c6eae39c7831d55028f4b5c21e7091f7a303f7f3eb80e7050e71aa95464672022100cc69de3628b199b9cc0dbfb8546a708f7058572dc6f944f9680903eab7c10acf
 . . . . [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)
		007c38760b8a6625856e690bb4d762312d70ff0c305191f446612cef61e9e32c4ecce223812210ce3eb98710d7287b4c1516d04fa049a656db6418328a1eb879481ca4809004c83b9b602bc90a696cc13c7aed491701ee8f86696bccc62de23b5dd9f74ad127cd3b1c18c3008f707fd3ca4f5f78dd4df6301fae375e1177ee39de1b4390474ed28b11a5034603c8bb787f32b332f2a86300ecaec332747c075d86467247547d7c0821221df368b732ab31ced91f3a3d43aa3771ca01afa43ad7436cdea94ffff5d64d1e1640bac7498b13f9114b55fdf89701de373d2121c7fedcdc90a12cb38054d1198f6b0c44eb998b6b811dd69eaf4333360ddddda25890ca