montgomery.devon.sch.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:65:c5:6e:d8:34:db:2d:0d:69:62:24:c8:73:69:0b:3a:04 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=montgomery.devon.sch.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:65:c5:6e:d8:34:db:2d:0d:69:62:24:c8:73:69:0b:3a:04
Serial Number (int): 383080096239068009175947680464802610362884
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 7a:1d:12:c4:a3:e8:a2:8f:0c:47:54:d0:d3:87:2d:a0:b6:92:48:e5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e9:6a:46:9e:24:78:55:a3:1f:ac:c1:0f:64:ba:eb:bc:4d:76:30:14
Fingerprint (sha256): d8:d5:62:3a:17:24:e2:c3:ff:30:b4:45:5e:63:e1:0b:a0:0e:f2:54:f4:8c:ba:f0:70:c2:c9:62:05:d6:a9:51

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 montgomery.devon.sch.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for montgomery.devon.sch.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

montgomery.devon.sch.uk
www.montgomery.devon.sch.uk

Other certificates including the domain name montgomery.devon.sch.uk

(limited to 100 certificates)
www.montgomery.devon.sch.uk
www.montgomery.devon.sch.uk
keriomail.montgomery.devon.sch.uk
www.montgomery.devon.sch.uk
montgomery.devon.sch.uk
control.montgomery.devon.sch.uk
mdm.montgomery.devon.sch.uk
www.montgomery.devon.sch.uk
montgomery.devon.sch.uk
mdm.montgomery.devon.sch.uk
www.montgomery.devon.sch.uk
control.montgomery.devon.sch.uk
montgomery.devon.sch.uk
www.montgomery.devon.sch.uk
montgomery.devon.sch.uk

Certificate

The complete raw certificate details for montgomery.devon.sch.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw6eyvDaPNLimOqi3+HbI
j0e1pk/Igslgw2B/N+JNVr57/QiGyOb0C1XunKrztkB9SFcU9deCr6iRF0o9kWL8
f17eru/hZEfmqdn4x2i08RIlMle6WZrnINsrrHbrhR8hfHNwb9VUSE6ImFc9NaPy
NYZldvLNgpp6Mx+fCsGDAvicl/zLs8J6Vlfl7MrM80SAVaESAj7ULuBhoHo+hSNc
kNuoDOwuFvwOG+6S4gJu+dXxA+7OBtW/yBN/1rAzsgcUiFTKdFMOA1Ij5dMpOPAh
0gwvzdW0JjdHXttnNj27EpUDpzkDg5pNzYtqJL4XvVOCXv2iV1I43bmByZ7NTVGj
PQIDAQAB
-----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 383080096239068009175947680464802610362884
 . . . . . . . . [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 2018-12-28 08:50:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-28 08:50:12 +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 'montgomery.devon.sch.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 24699164525198185513957055300776172920897570736681515336566033612467844103098620416471403563574740325466907191220159284918397483966137547288896446264916955926693598408403899077704524914068657345312966323237354573588179850096758260236295373677004411675207472708580192433717537155102865600709356784943022547970809473350875790888858961913405840154293081231016242589626554133693130692731792352933329295079069515703783342471201119868260894893130131551956821137541739864881845518548084935235998907513414763717150379008290530408316550991265255660116591735293807393773329486439063562609112776485982442889093226049567196291901
 . . . . . . . . . . . . . . . . . . . . [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)
							7a1d12c4a3e8a28f0c4754d0d3872da0b69248e5
 . . . . . . . . . . . . . . . . [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 (56 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'montgomery.devon.sch.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.montgomery.devon.sch.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 (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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000167f438a6b80000040300483046022100b8f171f61aebb0afbbe3f677f53dcff6495dfe3dd4b74d4def64003d91a0c15e022100e856c56fa2ae18dfe0798bc5b4f6514d7cb67081dede808f90ff8cbc1c26abb1007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167f438a6a80000040300473045022100afe31563f4c8e22ff0b2a48bb4b363726547a92556499224b22aed2f218bb38d02200321ef241dad4f687d979109e89793c8e8413efeb59abf31abceae15affff251
 . . . . [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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