switchboardworks.co.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b4:6f:cb:52:ca:5c:f1:7a:c6:8e:6b:6d:a4:81:ee:9b:f4 was issued on by Let's Encrypt.

With 3 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=switchboardworks.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b4:6f:cb:52:ca:5c:f1:7a:c6:8e:6b:6d:a4:81:ee:9b:f4
Serial Number (int): 322736283864034512474315932602706904914932
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7b:13:36:b4:dc:1b:93:ef:75:d9:1e:ed:d1:09:a5:2c:eb:c0:08:be
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 43:5f:1d:bf:f2:69:9f:92:07:d4:d5:aa:81:6c:b9:0b:6c:d8:d7:3f
Fingerprint (sha256): a2:f4:0c:f9:7d:84:66:5c:34:23:82:74:64:b8:24:9f:f2:51:e1:3c:67:9a:0a:a1:e5:3c:46:f9:94:65:a6:c4

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 switchboardworks.co.uk

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for switchboardworks.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

mail.switchboardworks.co.uk
switchboardworks.co.uk
www.switchboardworks.co.uk

Other certificates including the domain name switchboardworks.co.uk

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArRbQcNT0wfmbASJ3Lb1o
Zn26/e9heeT/Tv5SMeUS/rTKsdCeRBuq73wTLY3muyvCY9AMZ5o89iU/Ol754Cyg
KKis7MErethKQM2X+1i6HWT5+yW3sYV1zb24UELm3VcemAkWWUj0zBjjEAYXSHCb
IDw8IdbOHNc+d3/GLpn9jd7jSOEACrUCdsTNQVALbt9vr6vWC3OXMycdpZnMOYuw
qNIJ1yrd7FfqrRc+cxW+xLQ2b8tEDF3vVQRAfLWbKCWdJKzJgO8Lr6Z6D91gq3Eh
C2eGH5b6Z6pluzstDdLGMNdZbRMi0rTCNcthn35VKMLEUlN0kv3sGzZsF5pFe2zX
IwIDAQAB
-----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 322736283864034512474315932602706904914932
 . . . . . . . . [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 2019-11-02 19:47:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-31 19:47:08 +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 'switchboardworks.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 21850476871134756562774644521599577430908862776401529969537841616712736192501470528821623463293088079232799439536087393639111331319216403353545797406968193393095070463987185168229231589261589775161803493335463457437425458432651273306884647757483372210179697885678318824882734584378477508505309932112910625749472708127737891767568340253515883505955610769747648948499578469243102675549748854305764133926175958567679913259180623977321223935333018712919588735115715196466129906400712783234736360876017006744983353784712484181768093558234982302030095030076900369160991413389456916505000031663150412452484209075155985291043
 . . . . . . . . . . . . . . . . . . . . [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)
							7b1336b4dc1b93ef75d91eedd109a52cebc008be
 . . . . . . . . . . . . . . . . [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 (83 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.switchboardworks.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'switchboardworks.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.switchboardworks.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 (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)
							00f10076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e2ddf21a60000040300473045022100e34c4f6bfa0184bfae91ffa8b22537d421d8b41defabd21d89b526305d0ea19602207cb11bce44c4268e08e349307d7408812974a950c156122a266f2f270f6dbb93007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e2ddf23640000040300483046022100efc8735411019265d5c2c7c412dd5f94eeed77ef5ab61d7e1c0cd13006f257c3022100e44a1b87f00fe079bbc4366c39c487919ccfe5620b2ebbe23a9465d0a64104f7
 . . . . [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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