cat.mx

Issued by R3

About this certificate

This digital certificate with serial number 04:ff:2a:00:3b:88:01:f3:14:50:71:92:ec:d9:f7:e4:94:a0 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=cat.mx

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:ff:2a:00:3b:88:01:f3:14:50:71:92:ec:d9:f7:e4:94:a0
Serial Number (int): 435276976075141061303621828474514763453600
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: e5:5b:f4:6b:56:4e:f3:8a:21:b6:41:df:cf:de:c9:ab:95:fb:da:30
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 5d:f1:6d:46:3c:54:23:b1:e2:82:5c:93:31:2b:24:b6:eb:63:04:7b
Fingerprint (sha256): 46:3f:8c:c7:2e:65:88:3a:f5:f7:82:d6:7b:c3:ef:90:1f:43:13:61:03:9c:00:88:b3:a1:ea:95:48:16:0d:e7

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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www.cat.mx
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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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvHLiTp9Vb5vfqJpwlh9h
ZQVK2uz0OCwKnk+39RiEftYmkT2BCikKbl411jzvhD+S9YALg2AFgPRNr5loLHgA
enlhX1ZkKX4pItVHdRuMvZiZ0PsECJi/O8zAcG8ULtPfFSQmNhSpmi3yn+lXn+XR
6gd/bbGlyv6r/5GNrkCxq0KDx7Auet/quPuzCK+CGYHyJRv1FpZwkjlZ1zH8dINU
fpdmCWiHzJL40UaYHyCe96GmbURXeyVbgercvqyP9hiForxpu/bPKcEhUt2WH229
j/l5gz8khmYRY8viG8C3aNwUSThzBl++G2TazhnjIlD8c/Of2SeMggLBFPBsZ1zG
PQIDAQAB
-----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 435276976075141061303621828474514763453600
 . . . . . . . . [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 2023-07-08 12:18:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-06 12:18:45 +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 23789452751453507757252008476227098667300572136617794744371205407220546984605819536595386015921978948796671335895436336131211551073883248974674278299947848120787518146112745373576177288625993498838094878451053700092735236859849994986717585861742886600808443605700192625810044275168736618984766680288867217022691137255551016820140488108689332430066825976056577752643366640903238811287623402434497130593202215669829176358635909875558556602861800747376375445973046090801674289268739646446953020491606942344383153097893530704786517569022989797291990988015775318679480147367890189643218420945122692453538659644440500291133
 . . . . . . . . . . . . . . . . . . . . [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)
							e55bf46b564ef38a21b641dfcfdec9ab95fbda30
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018935a7a4ce00000403004730450221008e80391c3b03797dc85e625363470de6242015d7828587f53b31f3c33e3c9fec02205406b0a6cde74b5da0424e290c780368323f8e926fb4ee9f46f708f89af6c0c6007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018935a7a4d60000040300473045022100b76f9310c0141db74b952e9b4b6011030183cda3acc4c460f9f73ee396a9981a022024b9fbd649c69ffa7f919ac4c18692b79988c9c83a4e8eaf1e631606f40c0eda
 . . . . [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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