colegiomontessori.com

Issued by R3

About this certificate

This digital certificate with serial number 03:4b:19:ab:b9:18:ca:c9:60:e3:bd:3d:9e:f5:27:49:5e:a9 was issued on by Let's Encrypt.

With 5 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=colegiomontessori.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4b:19:ab:b9:18:ca:c9:60:e3:bd:3d:9e:f5:27:49:5e:a9
Serial Number (int): 286892157651218569051495124223433491701417
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 66:12:cf:19:1d:d6:00:95:1b:80:f7:48:45:7a:6c:47:f8:d6:21:39
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ab:ed:43:3b:d1:8a:64:79:09:0c:cb:ca:bc:6f:4f:1c:ad:fa:59:ac
Fingerprint (sha256): f5:b8:30:75:9c:27:24:03:5f:23:f0:b4:4f:ae:b0:a4:dc:73:8b:68:d8:38:df:b8:d5:c3:fe:a5:c9:06:be:28

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

Revocation information

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

Check the revocation status for certificate colegiomontessori.com

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for colegiomontessori.com

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

colegiomontessori.com
familia-escuela.colegiomontessori.com
jornadas.colegiomontessori.com
oldsite.colegiomontessori.com
www.colegiomontessori.com

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Certificate

The complete raw certificate details for colegiomontessori.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvuhyp8Yy2r6WX6HaoHf9
UIKyGSjRlCRcgz9vIi8alMtNYUebf7baIPNl4ONXwIqoxLfrw7RX41+fF/Hgz6S7
0cIFP61YAG4xc7w1+4vhT7BrabOPMbEADlxpi1iTuQUzU+rTzF1Wgm+pJkTe8KV0
8ngLH2QSjX8Y+90lcQNZCNyn6ZABCwhyupLCHf6Qt2Of68Vo5FrrjA9OvSZCmErU
WWfYx+rrSrNfXPSe0I+pszccpPi3cWQDt8dEB4ZS46sqFE55WnGBT91yHvsngRjs
P9srrXb2Ljt/TtJciKbiKDYF602WIkmzIAKFoHKMHWk3wqEZinUHhvAAvXMmr8LT
YwIDAQAB
-----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 286892157651218569051495124223433491701417
 . . . . . . . . [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 2023-09-30 01:47:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-29 01:47:49 +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 'colegiomontessori.com'
 . . . . . . . . [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 24099902261603177331611233341155925738098989659642268612606407816104018762086936210154557569848872229616478869006477291921052982358117161419871782430535798651256915799234944822505809501365776019952189122994231068393651074030552373147841264872084270131468314521261628367189457841828683724264860737000582396343413805336607780019461502160550964138856474596937407236373628201608885449703778738660150196272240197077391981041202402878254880563348606151556257413131138233072794432671995466067246302473430039520993671099186458170704792911424396134525142471372564963025153893147882926503082156463594605440770774828494172115811
 . . . . . . . . . . . . . . . . . . . . [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)
							6612cf191dd600951b80f748457a6c47f8d62139
 . . . . . . . . . . . . . . . . [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 (155 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'colegiomontessori.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'familia-escuela.colegiomontessori.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jornadas.colegiomontessori.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'oldsite.colegiomontessori.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.colegiomontessori.com'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ae3fc33440000040300483046022100db5c65d234e65fa6ddb84bc1d6af1fe8473ba2e61a8686ae9949311ed74e87330221009a80f67452032e74be45594cc55f0596645556ef9b8111a2d65087437307bdb0007700e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018ae3fc33340000040300483046022100b56fc8c528e9dea6df4daea4a812459bb9556e429a93f6fd9442098134ffabe7022100c92ffa3febc23dcb7c52ea5922a66d80ab629a9d907ce2528dbf750d37a7107b
 . . . . [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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