www.brooklyncenterschools.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:73:c6:75:7d:32:70:ab:fb:27:8a:92:b6:b3:c2:54:7f:d1 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.brooklyncenterschools.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:73:c6:75:7d:32:70:ab:fb:27:8a:92:b6:b3:c2:54:7f:d1
Serial Number (int): 300733127172384003971457830313989646876625
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cc:04:59:99:67:c5:8f:72:e0:95:cf:f8:bf:8f:29:0c:b4:4c:3e:ed
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b5:65:6e:3b:05:2b:30:88:ac:90:24:f6:04:f5:25:00:00:35:1d:db
Fingerprint (sha256): af:2a:1a:bd:d7:e1:1d:f6:30:87:f7:6e:8b:e6:ba:d3:60:84:4d:6b:b9:d6:d0:02:6c:09:7f:17:eb:cd:9f:dc

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.brooklyncenterschools.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.brooklyncenterschools.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

www.brooklyncenterschools.org

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admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.wsvsd.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
westernhills.tisd.org
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admin.intermediate.wsvsd.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.brooklyncenterschools.org
admin.monte-rosa.mx
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arc.wasco.k12.ca.us
olpelementary.org
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www.visd.com
admin.brooklyncenterschools.org
admin.columbia.wsvsd.org
admin.brooklyncenterschools.org
admin.preescolar.semperaltius.edu.mx
www.lsprep.org
admin.brooklyncenterschools.org
es.wisd.net

Certificate

The complete raw certificate details for www.brooklyncenterschools.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAotlbnuTYIhpjrcPyMWOY
fmq4KlzZ8mgSLWYEvDDty0tnYqKn8QbkOsSV0Vg9hfVf/qzwePzs+Sm5BXkz1axk
KN+vZysu0ETNiPFGoH8fXZeJT/FqCCorrwNIOUfo8hILHXopK/FYop3zvXenjW37
7sJDgqOFcgfzU40DZaUr16MBXXK5xb4qODYFAWwVd8E4xDyUZcTZGG40H7mLjIYu
Vj9ci56S70MrXhiSFZmGw9kCcHlHG04lNGG6K0VN0X7Ouxk4FW/syp/gFOfjIiGa
wN7httMkK9zO5QVbhLyEfletSWZhhV/b5xNMYv02cuglyqTI26KQPqq8fpBa4Lcd
yQIDAQAB
-----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 300733127172384003971457830313989646876625
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-12-07 14:31:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-07 14:31:29 +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.brooklyncenterschools.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 20557788576448824577112365644834391135995636186072232500346429449786700489452918537121188549672615932892316392324349267231041527519434067843764276553387430023304961053932571732231073369343201158978174132999607025665816036698966878395565590373404983256677155599604089658519664287101475346496941382534136552210958962729184875307827554154888522425150202186959187782703539483712439281782743074106034904796393528741027255758719879128019446653208826663299088150788829175428605351879967612796449347484268718893765593305471394623145742150171001490556817753088866712359357725798576239435282555599070571620134262844313944137161
 . . . . . . . . . . . . . . . . . . . . [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)
							cc04599967c58f72e095cff8bf8f290cb44c3eed
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (33 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.brooklyncenterschools.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000167894b8ea3000004030047304502205f3421ae1eb79449f7d53d0c1b749c7f9748a9d8c9097c678cac3bb39f115363022100b693621814a8999bb2047b8a874b72070c21b5670a4e9a7c3e3e451df475ad18007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167894b8ea30000040300473045022100fe0686de9da22db9e42222d7ae0d73afe50e19668cadbc40032196a83d556ec402205f44e32fd290fd83443309d3dc3f70ac7cb896a16e8e579aee56077af3c7fe13
 . . . . [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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