mail.colegiotecnicopraga.org

Issued by R3

About this certificate

This digital certificate with serial number 04:58:6b:bb:07:43:2f:54:ce:f1:c7:ea:53:cb:1a:b9:a9:3b 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=mail.colegiotecnicopraga.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:58:6b:bb:07:43:2f:54:ce:f1:c7:ea:53:cb:1a:b9:a9:3b
Serial Number (int): 378537190518444905818955226667269561624891
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 86:99:be:9b:a2:63:83:b1:4a:e7:72:1c:5a:cd:17:78:51:6a:f1:13
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 68:10:cf:5f:d7:b8:1b:d0:33:81:96:da:ad:a7:29:09:64:ff:31:60
Fingerprint (sha256): 8e:d4:50:79:a7:e8:b6:91:bd:5f:df:68:bb:40:a4:59:63:b3:19:53:e5:aa:63:62:6b:68:f2:f4:5d:6b:e2:43

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

Revocation information

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

Check the revocation status for certificate mail.colegiotecnicopraga.org

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.colegiotecnicopraga.org

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

colegiotecnicopraga-org.sydaisa.com
colegiotecnicopraga.org
mail.colegiotecnicopraga.org
www.colegiotecnicopraga-org.sydaisa.com
www.colegiotecnicopraga.org

Other certificates including the domain name colegiotecnicopraga.org

(limited to 100 certificates)
colegiotecnicopraga-org.sydaisa.com
colegiocasanazareth-org.sydaisa.com
mail.colegiotecnicopraga.org

Certificate

The complete raw certificate details for mail.colegiotecnicopraga.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFizCCBHOgAwIBAgISBFhruwdDL1TO8cfqU8sauak7MA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzEwMDcxNzA1MjRaFw0yNDAxMDUxNzA1MjNaMCcxJTAjBgNVBAMT
HG1haWwuY29sZWdpb3RlY25pY29wcmFnYS5vcmcwggEiMA0GCSqGSIb3DQEBAQUA
A4IBDwAwggEKAoIBAQDctH4FRufZKMKzMFV48pRUWWrM1NPbrG7jZ3dFkKFv5J4Z
t9trocP87u0NJQw0nyjr4QiM8fjNnJSj6yNKJEhxS/ZgjCKUIflmNm/WF/cfyYb4
hVd7x/Nr7WIvJ80gAvaHuhmRm0UqWQ9HSiP9ZUnIBlOxyoUCIP+LgPtbzUitYXPG
oN3lSGhCwcedbYz9fb/YGhQ0+zVwbueRH1zK7ZvHr+U91PE+3g9lCK0lJk/2oQe+
yhVu9vD1GRLJc1V22V2fSGRljmbZtcOJh+mRZbeE/o7OcDoUwSC6O7XuP24wXPuu
1/9wdvm4ZuiGuTDt1Tw+eZlOFoAT4XI/dGSSDV35AgMBAAGjggKkMIICoDAOBgNV
HQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1Ud
EwEB/wQCMAAwHQYDVR0OBBYEFIaZvpuiY4OxSudyHFrNF3hRavETMB8GA1UdIwQY
MBaAFBQusxe3WFbLrlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEF
BQcwAYYVaHR0cDovL3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8v
cjMuaS5sZW5jci5vcmcvMIGtBgNVHREEgaUwgaKCI2NvbGVnaW90ZWNuaWNvcHJh
Z2Etb3JnLnN5ZGFpc2EuY29tghdjb2xlZ2lvdGVjbmljb3ByYWdhLm9yZ4IcbWFp
bC5jb2xlZ2lvdGVjbmljb3ByYWdhLm9yZ4Ind3d3LmNvbGVnaW90ZWNuaWNvcHJh
Z2Etb3JnLnN5ZGFpc2EuY29tght3d3cuY29sZWdpb3RlY25pY29wcmFnYS5vcmcw
EwYDVR0gBAwwCjAIBgZngQwBAgEwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdgDa
tr9rP7W2Ip+bwrtca+hwkXFsu1GEhTS9pD0wSNf7qwAAAYsLUMUbAAAEAwBHMEUC
IDIW4yiqDp6cEQoIC6/UhhCaCUQ5UfocjCUh/yaATzN5AiEAhLSdiMjMwoUylhLq
tLaeT1l3cDxSS9rDOn4e8i7MkWMAdQB2/4g/Crb7lVHCYcz1h7o0tKTNuyncaEIK
n+ZnTFo6dAAAAYsLUMVHAAAEAwBGMEQCIDISHkAu+N/B0T6Uuau+StMenucFSUA2
fvLLyNvQHNfGAiAKJRaTO6Btdv9ngOIrZYTnmYwUq+IzXF7Z0EdFdbM7yTANBgkq
hkiG9w0BAQsFAAOCAQEArPlcwaEVnwh7JCTCLwdiLBA2Hr+13HVsvy/D+8U0Ofoe
LJCK/QuP5OpGNi9SE37gfVnoADADbmVZPzTtb+b33a60oXDJ1ejpmBgjTioAtx61
h34THuuShly3H195HADEmqLCFnGn2rqedKPyOkDq4lKSr49fuO0imQnhuPCszHnF
hESscUSHlQgHSFpeeO6LAXhRuEo/JYllgKsdzeIi69g+Zcyt26Asul5Pi5geqk7g
WTfxCjhl0M2MCBAoXrNYyGvB1NE/pJrVJQQLtR39b0tLbByY6Wt16TbdBHNfqITb
7EE+1tCn6gx+o5BkHm8vkDMTX0O1r5A07f8NA91Cxw==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3LR+BUbn2SjCszBVePKU
VFlqzNTT26xu42d3RZChb+SeGbfba6HD/O7tDSUMNJ8o6+EIjPH4zZyUo+sjSiRI
cUv2YIwilCH5ZjZv1hf3H8mG+IVXe8fza+1iLyfNIAL2h7oZkZtFKlkPR0oj/WVJ
yAZTscqFAiD/i4D7W81IrWFzxqDd5UhoQsHHnW2M/X2/2BoUNPs1cG7nkR9cyu2b
x6/lPdTxPt4PZQitJSZP9qEHvsoVbvbw9RkSyXNVdtldn0hkZY5m2bXDiYfpkWW3
hP6OznA6FMEguju17j9uMFz7rtf/cHb5uGbohrkw7dU8PnmZThaAE+FyP3Rkkg1d
+QIDAQAB
-----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 378537190518444905818955226667269561624891
 . . . . . . . . [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 2023-10-07 17:05:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-05 17:05:23 +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 'mail.colegiotecnicopraga.org'
 . . . . . . . . [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 27861431147120225572975250588614067255811116879968859827999908252142746407194637880987755635794972914250641581264865002222517420227035523849371166999038369850474201227663498561420040954503855165925440920997028119382358876486886014956572482578240599111401849765811054311216960187229672921597780390812238433268091357057528468718155385382733548790487227983139146229564787935893754231879161799167319616685263120560693082611399242170580245040561477058942194509445882962764629013294651314849856336350082037063623301564982807269502823630747639978615332450907605910933417819056683033984516677607175921470445227339599615712761
 . . . . . . . . . . . . . . . . . . . . [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)
							8699be9ba26383b14ae7721c5acd1778516af113
 . . . . . . . . . . . . . . . . [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 (165 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'colegiotecnicopraga-org.sydaisa.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'colegiotecnicopraga.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.colegiotecnicopraga.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.colegiotecnicopraga-org.sydaisa.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.colegiotecnicopraga.org'
 . . . . . . . . . . . . . . . . [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)
							00ef007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b0b50c51b000004030047304502203216e328aa0e9e9c110a080bafd486109a09443951fa1c8c2521ff26804f337902210084b49d88c8ccc285329612eab4b69e4f5977703c524bdac33a7e1ef22ecc916300750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b0b50c5470000040300463044022032121e402ef8dfc1d13e94b9abbe4ad31e9ee7054940367ef2cbc8dbd01cd7c602200a2516933ba06d76ff6780e22b6584e7998c14abe2335c5ed9d0474575b33bc9
 . . . . [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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