*.supportmyschool.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:3c:7c:ea:0b:d4:4f:dc:82:e3:7a:21:87:bb:31:79:f8:a5 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:
  • 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=*.supportmyschool.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:3c:7c:ea:0b:d4:4f:dc:82:e3:7a:21:87:bb:31:79:f8:a5
Serial Number (int): 281919839319406866456331793019389517363365
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 83:1a:f2:7c:66:09:5c:2d:a0:9b:96:8a:91:5c:11:40:ea:59:34:14
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c9:dd:b9:a9:3e:33:fb:3e:c2:ab:b9:79:45:a9:ca:53:9f:42:02:97
Fingerprint (sha256): c8:f4:9b:89:d0:64:ba:d6:a5:15:e9:1c:85:84:e3:98:92:61:6e:33:e7:50:0e:dd:26:54:12:ab:e7:0e:af:f1

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

Revocation information

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

Check the revocation status for certificate *.supportmyschool.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.supportmyschool.co.uk

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

*.supportmyschool.co.uk
supportmyschool.co.uk

Other certificates including the domain name supportmyschool.co.uk

(limited to 100 certificates)
*.supportmyschool.co.uk
*.supportmyschool.co.uk
*.supportmyschool.co.uk
*.supportmyschool.co.uk
customers.tigertech.net
*.supportmyschool.co.uk
*.supportmyschool.co.uk
customers.tigertech.net
customers.tigertech.net
*.supportmyschool.co.uk
*.supportmyschool.co.uk
*.supportmyschool.co.uk
customers.tigertech.net
*.supportmyschool.co.uk
*.supportmyschool.co.uk
customers.tigertech.net
*.supportmyschool.co.uk
customers.tigertech.net
*.supportmyschool.co.uk
*.supportmyschool.co.uk
*.supportmyschool.co.uk
*.supportmyschool.co.uk
*.supportmyschool.co.uk
customers.tigertech.net

Certificate

The complete raw certificate details for *.supportmyschool.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqwgibf0W59ojylIBrJR9
GtlSNLMDpkFF/9rPTeAspxynr9DDd99+qV6q1ZHpoWRiOUF/CWkKMKmNGA1LAjae
byI4hhPkafufmDdieqwDHephKUFncwwf4WMhOaMDr1W9f2ujnD8PJUYAHfecxQO6
P8MHCYzSYKvAEFGfbyk1w4YJp21cM6KCJJDnACg5d69HVj8zC552wu5Pz4n7q8xw
CHWuzPhkTJHUoM7wn699yTU8bs/5arhkbbQls1BAaNrRy600DLkfuZlXjULOF1b2
JzTznPrcbGJeu5l7PxY4KPe12jrr+5MjFkkxw4RsQqpQhww+0DiuJ92FVum2fWkJ
GQIDAQAB
-----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 281919839319406866456331793019389517363365
 . . . . . . . . [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 2023-11-27 09:19:54 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-25 09:19:53 +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:12|false] UTF8String '*.supportmyschool.co.uk'
 . . . . . . . . [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 21590761416108173751004608177697953553859600457640708682140140794449928849037053809212142438317798835129660830847302210863069816397895215294709298789293626502753949666057065811677668139420605283022202064637440056390116097491648861647804057062517738266680033089523588554147729158469292034470615999798870201514646297521817553240357988261889005899201140661794049697670893055872071230143079440198219853722692988409754040514788535955107160383567286477822552303476172733964613081337552802212180250792753863069437370682487415926542374330871778720755739814091019769702444436749774718644003128665051042140705461434183211092249
 . . . . . . . . . . . . . . . . . . . . [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)
							831af27c66095c2da09b968a915c1140ea593414
 . . . . . . . . . . . . . . . . [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 (50 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.supportmyschool.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'supportmyschool.co.uk'
 . . . . . . . . . . . . . . . . [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)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c104aea0d0000040300483046022100bcf2c9463e7c1959acc5d433e505af562254177456cac1793625fec2ec7d2a4b022100c90dd1004a0ebc058122e5e82a2d4a4a339c7619d5b346f6e4f23b6497ab6a85007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c104aea0d000004030047304502203b9126b152ab2eca8fb5b6e78746519623659ec6de05fa1ef552a0035c558707022100c6f4f2c35ebc4c4a2d98bc8e224e0f45bececcb44a1dee6b4789bdb08ec3ecf3
 . . . . [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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