www.colegiomm.edu.mx

Issued by R3

About this certificate

This digital certificate with serial number 03:63:5d:7c:4f:57:c7:aa:30:d2:05:6e:02:a1:8c:e1:f4:12 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=www.colegiomm.edu.mx

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:63:5d:7c:4f:57:c7:aa:30:d2:05:6e:02:a1:8c:e1:f4:12
Serial Number (int): 295149075778137105409666318185933521941522
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fe:58:ef:8d:0f:2a:86:e2:5c:f5:33:62:f2:d3:42:e8:6f:50:74:36
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7b:22:4c:46:23:42:68:0f:e4:ea:e1:d7:23:67:79:7e:26:85:72:82
Fingerprint (sha256): f2:a8:61:3b:c3:7e:04:17:d9:ee:54:e2:f6:b9:61:a1:a5:68:1f:fb:e7:ba:bf:d5:52:fa:4d:31:be:37:bc:dc

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

Revocation information

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

Check the revocation status for certificate www.colegiomm.edu.mx

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.colegiomm.edu.mx

Public Key Algorithm

RSA

Key Size

4096

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

colegiomm.edu.mx
www.colegiomm.edu.mx

Other certificates including the domain name colegiomm.edu.mx

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGBjCCBO6gAwIBAgISA2NdfE9Xx6ow0gVuAqGM4fQSMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA5MTgwNzQyNThaFw0yMzEyMTcwNzQyNTdaMB8xHTAbBgNVBAMT
FHd3dy5jb2xlZ2lvbW0uZWR1Lm14MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIIC
CgKCAgEArdTkBzDlq6wP9LuZ0ztOlGoISteuB+IHi8eaKHgqukjYCoRGhNdmx3qx
r4GCpHlGlUrlX+cYWv5Ph6+EgFo3LnqmyRJYN2ES6cYELd69KwTeO53OcqiIHe0V
XJOaekCqkKRxetxkcD3lbwwjURifskcoJsATbuYrKoXQqwiMlq1jNXIhseBT68d5
jez2Q4k6JCQOiIyib5QMDuBjOIaq40MYL/wk4LvEvT4ejiOQkV1K6H6U0wzpwOcu
fXOmQS0lNeDY4hm1phV5neHYDY6OsjlbiKTGy/9BVIhGM5hNNAfLGKlu3d0ncMkp
L5ueQ8ixTPlWQbczgC0kSLt8P9CtsAWzP+Fl1aKK9bTuBFjBgagujP7aOeU5Vw1J
5rN1a+g+4rVhv/GbAykDV87vkkBvwPVDPGXxYU9RkjQPmdqG1s1ezgRp4JGeuHKw
vzVmymXLHb5Ij7RJYoin53ezSk9XmIgzj8BoQg0YyhkjFucwdOluSGHFUHsgqQXj
IdIL0TawQNh7UFlw9VrpHW4f5vGy4PxMoO7GokF8jrTy2O9f7UNKPPIaDXjgzSgy
myhlxQgipUmuM7dmYGT713dlcj1CKQHTWW00C5YlN7LN3O11Az7YeHLWno9JYUAK
5aKuQxyThmWwGSMFzClZv+YsImlYQ8CrfxqcMxsXAYD+820S9s8CAwEAAaOCAicw
ggIjMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUH
AwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU/ljvjQ8qhuJc9TNi8tNC6G9QdDYw
HwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBH
MCEGCCsGAQUFBzABhhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKG
Fmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8wMQYDVR0RBCowKIIQY29sZWdpb21tLmVk
dS5teIIUd3d3LmNvbGVnaW9tbS5lZHUubXgwEwYDVR0gBAwwCjAIBgZngQwBAgEw
ggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdgB6MoxU2LcttiDqOOBSHumEFnAyE4VN
O9IrwTpXo1LrUgAAAYqndQSzAAAEAwBHMEUCIFfrmx1tUf7yrcavSWcD1rCae6bq
kd1bNDjYFNFKWrJNAiEA14UFOwt5a54XyubkCAMvu96tTIyOPOCprwaVzB1MdioA
dQC3Pvsk35xNunXyOcW6WPRsXfxCz3qfNcSeHQmBJe20mQAAAYqndQSwAAAEAwBG
MEQCIHtO8HcDjynZGjptTJ9m//g8WyW1ubj2FPr3FKGF/4PDAiBSJ98a27TWpHV6
96bu5mnkD1whP5prWowvmRxSFPYkDDANBgkqhkiG9w0BAQsFAAOCAQEAhEWN76HQ
qXGjUrQvu/ucJnmQ2xEgCmmoIk9c4YBR7mrsc9WAHxNj5x5ZZ3N6JeqizdH4Ihqe
9nVQPM9SnQ9Ik4U0JLJTqXby9qro5MMoM0D9hc7N5bomv/MsayAEF9qFhswH7WO7
+a2QQrU6t9luHN3i3oxfw18kgKw8HBesqlGAm1watB4cDBvfGB9KTix7WU2+5WJk
OT3vDHOZijQDNWM44omYl9At71Qq4SrU+43JtrW8B4ZorfniN021JRhNSgJupmWQ
5k9O2TJpmZvUyCAp99FM54bOGBfJAma+ZH++GPl+8l74tpmBN4wKlMDzpO8QJbjT
MtmSUciVqTdqcQ==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 295149075778137105409666318185933521941522
 . . . . . . . . [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 2023-09-18 07:42:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-17 07:42:57 +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 'www.colegiomm.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 709171073857565783664740360408579085389590865223092884464706277935535157806757644515893994513577942408826869537045969928061161291132608310708609997079834263951850126827384977602800362204259344149457747193661350287405803723017070321696078067635520365159675339122743068232228528608484849226219290000248238096860734731312061775166198118319632436004172592114062088642053753584997126396389821148999227124364811008583426885626912377954606853597494368756084643819830986467874401891287029179694410483493968929300706927423839961602110782317608008532462164022786938583484125925868717500639291078413714887907017863856997967735039777375411758205731296227844992142937684951617602603360391807251005952374918928154006650765823669144200882871483350169404462435099849378361248393829478307579465112396099210449968644516804184816481380966479467531386747046862492356315401682966227611576880308425140013901978632830912913952671122077013319145205729631903284452981050759986268148032390732757437462720104324494030067403942199627088045480383535250400592674020110874733181763971037090432159890667226826882936214526139848984829792428458905082006065726265275630424371926137659682783832579911490632025183358337774366853358006563309446448552885924961023811581647
 . . . . . . . . . . . . . . . . . . . . [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)
							fe58ef8d0f2a86e25cf53362f2d342e86f507436
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'colegiomm.edu.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.colegiomm.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 (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)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aa77504b30000040300473045022057eb9b1d6d51fef2adc6af496703d6b09a7ba6ea91dd5b3438d814d14a5ab24d022100d785053b0b796b9e17cae6e408032fbbdead4c8c8e3ce0a9af0695cc1d4c762a007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018aa77504b0000004030046304402207b4ef077038f29d91a3a6d4c9f66fff83c5b25b5b9b8f614faf714a185ff83c302205227df1adbb4d6a4757af7a6eee669e40f5c213f9a6b5a8c2f991c5214f6240c
 . . . . [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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