1bigschool.com

Issued by R3

About this certificate

This digital certificate with serial number 04:85:0f:20:37:6d:57:b5:20:54:df:26:f5:65:b9:45:ed:02 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=1bigschool.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:85:0f:20:37:6d:57:b5:20:54:df:26:f5:65:b9:45:ed:02
Serial Number (int): 393726804225157591158707918027354420931842
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 19:18:31:07:ad:52:72:46:82:5d:21:cf:72:d6:b7:03:1e:44:81:64
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 66:d3:ca:75:0a:50:4f:9c:fb:69:15:11:2d:b9:d8:75:54:fc:a5:d0
Fingerprint (sha256): 19:a7:78:1d:90:58:aa:0d:c9:aa:82:cc:7f:bf:62:0e:b0:56:63:6a:e4:cb:46:02:52:b3:6f:78:af:57:e2:56

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

Revocation information

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

Check the revocation status for certificate 1bigschool.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 1bigschool.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

1bigschool.com
bluebrain.app

Other certificates including the domain name 1bigschool.com

(limited to 100 certificates)
1bigschool.com
1bigschool.com
1bigschool.com
1bigschool.com
1bigschool.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsZVstsuoDe4wvgYZAQNc
M9HhcKkioe51CvxX2kUodoIM6iNGiSgRucg4nj+DUum55nOeHWk+EiOTn9E3uZ4s
P0hm0x3ySoH6XYJhKCquoUFAu/fNGoLadiw86OC5jpvLVjOwjSEoNdAm94RE+C29
9PMWNrT9SjA5XW4WM0144M5qpg9nHj3Zxc9VA0EZMZibtwR0eJMI1xzv2frT+ayz
uo8qgXBQRwJ4W/QNLPtHpInb60zII1mzPzr8S/XwWGJQVTmQ/yQtFQXXNnpyfcMz
7FA++4tzxHYr//Y+CksgLWybTJCPxYsRdubO+Cycu5PDOl78ppWWGnsS4GNsk5Ib
cQIDAQAB
-----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 393726804225157591158707918027354420931842
 . . . . . . . . [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 2023-08-27 21:46:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-25 21:46:17 +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 '1bigschool.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 22417864027170455098057208258869213984399417498064961942106529650384646857813081128403404111539153049267982094395060610829232772753143088568610812061662069632128853504182733616974027243480492130839061125517850333610766933507725641060064314294508029499169482937670426890507339023182230665415005037699051412934181591824096398857613119947588581158047909407265054339136679260963541986748800496525685943991661452918915030198480337617034449366124019837921024549167872091071933011266003839692703555530206281649404591881142258897387358420698590321700033516850202668958919564894496419337147711652428609754988853542183517690737
 . . . . . . . . . . . . . . . . . . . . [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)
							19183107ad527246825d21cf72d6b7031e448164
 . . . . . . . . . . . . . . . . [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 (33 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '1bigschool.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bluebrain.app'
 . . . . . . . . . . . . . . . . [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)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a392d35c1000004030046304402201761d4c25317520b5aac699ba41170fbb1ca42c9783e957140a417a9230fe76f02207bf208cd4bcb61234409a664c01e127d7c5c2b6f70afc0b5876a183d546b6897007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a392d364c0000040300473045022062f83301f49b99d2db942b8146d5127c1ac4f0f3d8ca78912d7afd61016cc1c1022100ffdf4cd54744e6a984d5912102df9e6d5b35d54370a08e2f0c0de203657dbaa0
 . . . . [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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