canvas.houstonisd.org

Issued by R3

About this certificate

This digital certificate with serial number 03:08:96:a8:1f:b7:c8:67:f8:68:fa:3b:67:2d:d5:8a:de:22 was issued on by Let's Encrypt.

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=canvas.houstonisd.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:08:96:a8:1f:b7:c8:67:f8:68:fa:3b:67:2d:d5:8a:de:22
Serial Number (int): 264259373879203693027275086046328244592162
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c9:12:20:a8:41:91:63:b5:49:0e:86:63:06:78:30:12:40:46:4a:39
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 68:ec:6f:ac:9f:a8:f3:91:83:3d:d4:8c:c7:01:6d:fd:03:26:8d:c8
Fingerprint (sha256): 35:02:41:2d:38:45:5e:f3:f1:0e:6b:8d:87:65:15:eb:b6:9d:c4:d8:3d:59:99:a9:74:4e:39:64:91:87:0d:b7

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

Revocation information

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

Check the revocation status for certificate canvas.houstonisd.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for canvas.houstonisd.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

canvas.houstonisd.org

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hisdaccess.houstonisd.org
connectteams.houstonisd.org
apps.houstonisd.org
hisdconnect.houstonisd.org
destiny.houstonisd.org
parent.gradebook.houstonisd.org
remote-01.houstonisd.org
connect.houstonisd.org
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pubapi.houstonisd.org
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mealapps.houstonisd.org
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psc.houstonisd.org
findaschool.houstonisd.org
www.houstonisd.org
remoteaccess.houstonisd.org
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photos.houstonisd.org
photos.houstonisd.org
psstg.houstonisd.org
psstg.houstonisd.org
www.houstonisd.org
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canvas.houstonisd.org
remote-01.houstonisd.org
vpn-02.houstonisd.org
remote-01.houstonisd.org
servicedesk.houstonisd.org
sts.houstonisd.org
sourceassist.houstonisd.org
hisdconnect.houstonisd.org
amun.houstonisd.org
a4e.houstonisd.org
findaschool.houstonisd.org
webxprodadm01mgt.houstonisd.org
pscstgnet.houstonisd.org
photos.houstonisd.org
remote-01.houstonisd.org
timeclock.houstonisd.org
wsus.houstonisd.org
parent.gradebook.houstonisd.org
www.houstonisd.org
blogs.houstonisd.org
psdev2.houstonisd.org
destiny.houstonisd.org
cucmprodtftpvoip01.houstonisd.org
gradebook.houstonisd.org
servicedesk.houstonisd.org
blogs.houstonisd.org
mail.houstonisd.org
www.houstonisd.org
pubapi.houstonisd.org
mealapps.houstonisd.org
vpn.houstonisd.org
appsint.houstonisd.org

Certificate

The complete raw certificate details for canvas.houstonisd.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsEe76UYk1WhOPPD1GK9W
4u6ENtVZWEHmGlup3X2kBw08DNgAsQ6p7/2N2EZY4U3vwOTcl28EKPLe+KrhKSZ7
dzVuskEl9LVmh4wFI/z2lVGBgYzd6VnlHtlCvAHeuAqK062MPz7b53e2BEPCthgV
XxPY4x2C9UGt6ezSONSLwIrZ3eCw3m+063hnH9arI8ZpDX3+OnkWcI8gTebR+T40
bjlbJbX9KH36BqVZgEe7L8QRk7qf3adoor17T0XHTVFYK7Hoh0796uY6H2rANmHG
Vf5oBXrj1h1UDE/v8Q5V5ND/Yt5QxI95UCoE4B5OPmceg3IjzyXGreRH6bpUDgna
lwIDAQAB
-----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 264259373879203693027275086046328244592162
 . . . . . . . . [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 2023-09-25 00:53:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-24 00:53:28 +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 'canvas.houstonisd.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 22253315041729384474187146908463174479298192279761066718575162289759823193272730384572088783274702980747980107217245226014243893869078497810425868063813037824618689272582933958644972601879762826051125936512741089101429217474700031996735591278245779383877947527003910680359012501657843168495462826536429963565043337898767345489215577382080950572628211971274760873183176619366946629269292325212401916800456322296377484915441566826133755115400124817171814922436519779160338328920020058145250927971507570334613020233871895001155277806759877505052850822633316566019714885255503837862387139986508800979299907643005511260823
 . . . . . . . . . . . . . . . . . . . . [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)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:3|t:9|false]  
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'canvas.houstonisd.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018aca0aa361000004030047304502206bd8ef0730ccc198f90f30ba94217dc829396442d3460ea03da2fbe60ae79eac022100989dfed36a65beb17e416fc9488d0b0d21432d994bacf09d7a62339a94608c800077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aca0aa3680000040300483046022100f2eb2854c369627cff6d47b5a3930c498fb4f88c276f5af8e38c5e06551bca83022100c00e4c6533e2c9b2cf85058abb15e2dcec6ed3c482d162fc88110ef916dca59c
 . . . . [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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