british.edu.mx

Issued by R3

About this certificate

This digital certificate with serial number 04:b7:5b:d6:fb:ba:ac:34:37:c4:a6:d9:a1:70:a8:9d:49:0e 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=british.edu.mx

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b7:5b:d6:fb:ba:ac:34:37:c4:a6:d9:a1:70:a8:9d:49:0e
Serial Number (int): 410842892878391422491251978869004228708622
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 91:42:68:56:2e:93:6e:af:40:13:17:d5:0b:fa:cf:81:dd:bc:ae:50
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): fe:99:3f:0c:01:65:93:a5:b6:d6:81:c1:76:9a:b4:da:83:03:85:48
Fingerprint (sha256): b4:95:52:9a:d4:ff:3d:e2:3d:06:60:41:76:28:16:17:27:8a:06:48:d8:dd:2e:a6:59:85:60:84:d9:96:ce:eb

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

Revocation information

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

Check the revocation status for certificate british.edu.mx

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for british.edu.mx

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

british.edu.mx

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admin.cca-denver.org
lakelandsd.org
admin.cca-denver.org
admin.cca-denver.org
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admin.a1ms.jcboe.org
academiamaddox.com
ees.edgewoodschools.com
pv.british.edu.mx
academiamaddox.com
british.edu.mx
admin.elementary.bridgeportisd.net
admin.cca-denver.org
www.lisboncsd.org
www.sd925.org
admin.bac.wsisd.com
www.british.edu.mx
academiamaddox.com
admin.cca-denver.org
admin.loudoncounty.org
admin.bac.wsisd.com
academiamaddox.com
admin.cca-denver.org
admin.olaclaremont.org
british.edu.mx
academiamaddox.com
academiamaddox.com
admin.cca-denver.org
admin.cca-denver.org
admin.cca-denver.org
admin.bac.wsisd.com
www.british.edu.mx
edlio.com
academiamaddox.com
admin.bac.wsisd.com
admin.high.bridgeportisd.net
www.academiamaddox.com
british.edu.mx
admin.cca-denver.org
admin.edgewoodschools.com
academiamaddox.com
www.tannahillintermediateschool.wsisd.com
admin.bac.wsisd.com
admin.bac.wsisd.com
www.british.edu.mx
www.sjvsj.org
admin.cca-denver.org
admin.wsisd.com
admin.cca-denver.org
admin.academiamaddox.com
academiamaddox.com
jhe.dcs.edu
academiamaddox.com
www.tannahillintermediateschool.wsisd.com
academiamaddox.com
academiamaddox.com

Certificate

The complete raw certificate details for british.edu.mx in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzC/Kzt/TR0lN+2jl1ek8
c2Er2BPV5PCWoi5G0e6adkbrc7t2xRQueWUmeeu2xu5JdcuVRUEkWbkHjep/V1Sq
WvhZFarwb4NWi3blLQKKdEtSOC9ppS26whWFXLlY5EOObhS1W/GHjSoVVgnGC1/Z
g6CUqw3dm8VTBuJtqnG1Y3xah+wVUW9mgkS2E7eOtbX6eYRDO8EIKackoPNnNmiP
Kr+6ShQMzmOD5rwfStbplHkf3i/Dx1Wz/iV3cXElkiD4lcG1N2a6loWbZmmd+m/u
fevqp61HNXwF1UQR2DexnrYemyQ0flRsE7+Q6buZ/oHoxIHXnDol4Tri81YcfOL5
VQIDAQAB
-----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 410842892878391422491251978869004228708622
 . . . . . . . . [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 2023-10-01 20:05:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-30 20:05:43 +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 'british.edu.mx'
 . . . . . . . . [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 25776181434701979263285773901332595310075566471150631710765692665080036577784173344780008071928371003854899525437059139960909504361901024931864907167552321184094570733461420789062809604413129904255032580277207364543191757378808581438153074677065670177458097319055378888981007353111512200234591367831194270548223171209258570166770825617438773743887116184657563618931212739546519313390200742071824630187053532540208082246044135536747051288642308883539138973103109009942816150894954239103022938580213958670215748820423273613034979389325796079988418842150641995289739324210644606614577365956841455108542444516873886431573
 . . . . . . . . . . . . . . . . . . . . [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)
							914268562e936eaf401317d50bfacf81ddbcae50
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'british.edu.mx'
 . . . . . . . . . . . . . . . . [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)
							00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018aed0fb8fa0000040300473045022056290c29c616937a49a1a9ab722065ec8b60f2e88725d96f0104e99a6753e012022100ffe54ebdb64ea2c75544d9df34cb49bec14447fe144095a75baf913c9f28e50f0077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aed0fb90e0000040300483046022100e98a6c4ad0cbe5fa9b953360e95561dcb9fe16398614b20e28543643dce49b6c0221009210b2074bd378f5e419e297f2bc76eaf2cacae6cbcaa7341170f3804bb02e76
 . . . . [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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