comschool.com.br

Issued by R3

About this certificate

This digital certificate with serial number 04:41:56:81:b1:84:ff:87:94:81:1b:71:8f:6f:15:ac:7e:59 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=comschool.com.br

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:41:56:81:b1:84:ff:87:94:81:1b:71:8f:6f:15:ac:7e:59
Serial Number (int): 370682484591357940351459250872515528785497
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: bf:42:12:5c:ff:6e:9b:1d:ca:ba:3a:ab:0b:4e:c1:b8:d9:99:57:b5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 4b:85:3f:c2:8c:da:d1:c2:5a:57:7d:62:18:a1:95:9f:9e:7c:7e:63
Fingerprint (sha256): 13:0b:4d:3b:02:5b:bc:cc:3c:22:d7:44:a8:5c:50:9f:e8:66:10:1e:cc:ec:5a:07:d7:4b:55:0f:d0:d1:f4:28

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

Revocation information

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

Check the revocation status for certificate comschool.com.br

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for comschool.com.br

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

comschool.com.br
www.comschool.com.br

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(limited to 100 certificates)
www.comschool.com.br
jobs.dingoblubooks.com
blog.comschool.com.br
events.royalcoffee.com
ead.comschool.com.br
comschool.com.br
careers.snapblocs.com
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careers.sath.com
chat.globalalarms.ae
news.comschool.com.br
events.royalcoffee.com
careers.puulsemarketing.com
careers.sath.com
jobs.dingoblubooks.com
career.rishiimmigration.ca
empregos.comschool.com.br
careers.sciflare.com
careers.puulsemarketing.com
conteudo.comschool.com.br
lp.comschool.com.br
www.smcommerce.com.br
comschool.com.br
certificados.comschool.com.br
careers.snapblocs.com
news.comschool.com.br
careers.edmingle.com
events.royalcoffee.com
certificados.comschool.com.br
i.comschool.com.br
careers.snapblocs.com
jobs.dingoblubooks.com
careers.snapblocs.com
www.comschool.com.br
www.dinorg.info
www.smcommerce.com.br
news.comschool.com.br
certificados.comschool.com.br
blog.comschool.com.br
news.comschool.com.br
careers.snapblocs.com
careers.snapblocs.com
blog.comschool.com.br
careers.oshricohen.me
comschool.com.br
careers.kaddentalstaffing.com
certificados.comschool.com.br
chat.globalalarms.ae
chat.globalalarms.ae
conteudo.comschool.com.br
careers.edmingle.com
webdisk.comschool.com.br
attend.ksig.org
classroom.novallier.com
careers.itseasyco.com
charting.pipflip.com
www.comschool.com.br
careers.bettersocialbranding.com
lp.comschool.com.br
news.comschool.com.br
www.dinorg.info
careers.oshricohen.me
careers.californiakidsfun.com
careers.yakkaservices.com
www.comschool.com.br
comschool.com.br
careers.bettersocialbranding.com
comschool.com.br
webdisk.comschool.com.br
certificados.comschool.com.br
jobs.jobskills.center
i.comschool.com.br
careers.snapblocs.com
webdisk.comschool.com.br
news.comschool.com.br
www.comschool.com.br
comschool.com.br
careers.californiakidsfun.com
www.comschool.com.br
www.smcommerce.com.br
blog.comschool.com.br
jobs.binaryic.com
events.royalcoffee.com
careers.alzadfoods.com
careers.snapblocs.com
commschool.comschool.com.br
careers.oshricohen.me
jobs.conseqta.com
careers.snapblocs.com
vacantes.corporiz.com
certificados.comschool.com.br
empleos.clinicadeladultomayor.com
chat.globalalarms.ae
career.energyabsolute.co.th
www.smcommerce.com.br
comschool.com.br
www.comschool.com.br
careers.tracxn.com
blog.comschool.com.br
comschool.com.br

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5OM7Gae86tEn1ZdrxkTk
BMFNqW2TxWzePOZoSg/Xpxsc7PvTMJ2O8xqUkhHkIS2mcmzttT3xllpX2GvWYPBP
4sK5nwE696jrCrpEVqAgeSB14HRpFlWQwHepBe9eUaiHnd9mAOGMos9XoFT3igUZ
O/IfuWfRzNHqeJ9ceC0BtcqTm4mc/s/RsiiqcfHb9/6mQ8NKTjZfa6fzuidI6FyZ
8OtN3Lj7aLv7U4Xl5NBR+PKQ32TWd+WycpU2MSIxdp8AfOOqXf+O9HkHOynvKIF7
mha/VQePRapXpeuszW2VmteQu1iycQYyVRVEykqz6CwMWkmgb5HV0RswLBe6ajb8
WQIDAQAB
-----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 370682484591357940351459250872515528785497
 . . . . . . . . [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 17:29:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-25 17:29:08 +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 'comschool.com.br'
 . . . . . . . . [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 28894385245659257796597708062737292319587324552355065735890266636304436515670796957387715463677630898259024132031262676726072598873059059609605997335479707874154980783593802767383375518987767712817796418446715127982933779550084650145837570179312060667174621874119781680994825664250036938836440545950318901271852944990037253063582467428324805767183711316606726449615489723229132573046042896067458937886418197318849892370362761766420795987232199010602726254665517464517835447219366523705122904937152013890373504794958706611992415422114753974343449834082880683118734654147327754838897006319619404738612622029297307548761
 . . . . . . . . . . . . . . . . . . . . [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)
							bf42125cff6e9b1dcaba3aab0b4ec1b8d99957b5
 . . . . . . . . . . . . . . . . [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 'comschool.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.comschool.com.br'
 . . . . . . . . . . . . . . . . [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)
							00ef0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018de18730830000040300463044022068985434a772c4915bf262c1ac6aaa8d6b214f028f8d06c3e9cbe1662ba3d692022064cc1942a8459835ced021a0c3463061fc873cf776af3ff9341d0a262938264100760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018de18730d60000040300473045022100eece56de4887d9837cb0414b5dab5acc36557bf5e65889b0ce05104b2a8ab14b02207e4cdf65628ba668f8eff5017ee35782140f3c56c82d86c08eb801ab84a068db
 . . . . [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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