www.polygoneducation.com

Issued by R3

About this certificate

This digital certificate with serial number 03:6f:2a:54:09:35:fa:cf:a7:2c:0d:7b:6b:30:48:54:67:8f was issued on by Let's Encrypt.

With 4 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.polygoneducation.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6f:2a:54:09:35:fa:cf:a7:2c:0d:7b:6b:30:48:54:67:8f
Serial Number (int): 299164464439082394112157907460624852739983
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 1a:fe:27:5d:23:3b:2f:76:b2:c1:cb:60:6b:9d:b2:d4:d3:c6:d2:85
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 05:ea:f0:40:4b:20:93:29:2b:57:6a:13:fa:00:d0:97:73:d1:99:92
Fingerprint (sha256): 5a:fe:da:2c:08:68:2c:70:0a:59:bc:3e:71:b1:c7:10:39:89:ac:92:50:ab:9d:9e:63:ef:67:65:f4:e3:93:50

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

Revocation information

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

Check the revocation status for certificate www.polygoneducation.com

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.polygoneducation.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

formularios.polygoneducation.com
polygoneducation.com
www.polygoneducation.com
zonaprivada.polygoneducation.com

Other certificates including the domain name polygoneducation.com

(limited to 100 certificates)
plataforma.polygoneducation.com
plataforma.polygoneducation.com
media.polygoneducation.com
tienda.polygoneducation.com
tienda.polygoneducation.com
tienda.polygoneducation.com
www.polygoneducation.com
tienda.polygoneducation.com
tienda.polygoneducation.com
tienda.polygoneducation.com
www.polygoneducation.com
tienda.polygoneducation.com
plataforma.polygoneducation.com
tienda.polygoneducation.com
reuniao.lugaresurbanos.com
plataforma.polygoneducation.com
plataforma.polygoneducation.com
www.polygoneducation.com
tienda.polygoneducation.com
media.polygoneducation.com
tienda.polygoneducation.com
www.polygoneducation.com
media.polygoneducation.com
tienda.polygoneducation.com
tienda.polygoneducation.com
dev.polygoneducation.com
www.polygoneducation.com
plataforma.polygoneducation.com
plataforma.polygoneducation.com
tienda.polygoneducation.com
plataforma.polygoneducation.com
media.polygoneducation.com
www.polygoneducation.com
media.polygoneducation.com
tienda.polygoneducation.com
tienda.polygoneducation.com
tienda.polygoneducation.com
www.polygoneducation.com
media.polygoneducation.com
plataforma.polygoneducation.com
media.polygoneducation.com
media.polygoneducation.com
www.polygoneducation.com
www.polygoneducation.com
plataforma.polygoneducation.com
www.polygoneducation.com
media.polygoneducation.com
meet.polygoneducation.com
tienda.polygoneducation.com
media.polygoneducation.com
www.polygoneducation.com
media.polygoneducation.com
comunicarte.polygoneducation.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAleJKxacLjylvR4spjQi0
5AUKpJ2KulHI9WzG8B7d2lEkZ/n0UTwnDPkk4HK39WN3i3/ypWxXxAGIoUzqf7UE
VBD7u5RCzJq951zD3AEBXcMMsSLHEa/61ohIGBnlvXz/QCM748UlbtLjD+DqJbPx
QCW00zAjFa1r2YIn7ipJTns73rCQR8FflCKqhiiNiFz2XctcxjcrSec2teXVwQ1T
0h1p4jCILudE8AQ410v/BCowo87UtK/KrzMtsdOW/JrzH0MtstudpQQZJCs/LD4o
OIJxsDuAkS3NCg68K25xE4xZvfHkUswBOaMjj6V3P++yRYNu2WOaqvKZSP7rrbe3
5wIDAQAB
-----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 299164464439082394112157907460624852739983
 . . . . . . . . [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 2024-02-25 13:51:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-25 13:51:54 +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.polygoneducation.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 18921096222791460043313195359763755160717376209256565602837775689055680666816178774654242281931216523254203360724956700308948881245067527785133410903122966172863248346624395757900189795439380623067072266074511934238664442759747097340543037635331279931810041504932184948515088178667329358332517147440591448229102430990659132565333024486845438953204751149158907492717402901293061401127301679453677231372167826856690958150801000104487333556900488919216450783327158835481695485443872537951226848473028409836786110484661295978272984011658798998260921138964439411031123450817503998830034256253952335069004176566940373333991
 . . . . . . . . . . . . . . . . . . . . [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)
							1afe275d233b2f76b2c1cb606b9db2d4d3c6d285
 . . . . . . . . . . . . . . . . [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 (118 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'formularios.polygoneducation.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'polygoneducation.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.polygoneducation.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zonaprivada.polygoneducation.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018de0c04cf40000040300473045022100d7cf336ceabd960854e14ed3dcfd14069735120a575fada1c0334bd9c6ae7be3022010795b8aaeb6a5cccd6504d37d6689be03552ea05800b609ef1d6e3436351ea900760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018de0c04d4a0000040300473045022034ddced75340f96883557ca98af9538d9baad679b4eb238dc7801410385d7a24022100bb2e71da2d0e2325fffb5dbfaaa4967cfdacfee5fc6f1efc05ebf1a86bab53db
 . . . . [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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