mazars-proposals.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:f3:3d:bb:d8:6b:01:da:f2:be:81:fe:14:57:4a:b0:7d:2b 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:
  • 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=mazars-proposals.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f3:3d:bb:d8:6b:01:da:f2:be:81:fe:14:57:4a:b0:7d:2b
Serial Number (int): 344107531213802674397437925751451699674411
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 42:cc:21:02:45:39:f3:5e:11:c0:82:6d:08:50:80:e1:3f:d2:2b:c2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 12:7e:48:d4:cb:61:71:be:e0:ba:d9:d7:95:4b:22:a7:cd:b9:6b:16
Fingerprint (sha256): 6a:24:e5:c2:ac:a1:34:34:46:c5:fe:b8:b8:33:22:eb:5b:d3:71:25:d5:31:41:f3:52:1e:b5:97:54:26:47:68

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

Revocation information

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

Check the revocation status for certificate mazars-proposals.co.uk

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mazars-proposals.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

mazars-proposals.co.uk
proposals.mazars.co.uk
www.mazars-proposals.co.uk

Other certificates including the domain name mazars-proposals.co.uk

(limited to 100 certificates)
mazars-proposals.co.uk
mazars-proposals.co.uk

Certificate

The complete raw certificate details for mazars-proposals.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuf2+ee+nknCWEzVIevgV
Vm+IX99un1ip56x53gfz9Cs968OpdmeK8szomsJ2ch/6M/sMyZAILFlaNWlSYRcB
l0sI+8ClHIlgIRWQpNC2xQjbzN6r0JY0G1+p1izihutnoksSlCRIradx9FEoKMKV
wS1Xpxn9+DKDpGgQYRARr0s4tfAfxbpBgi1oRMKclYETrWm4QYO/B8b43GFc9phs
lP8UKw8/VGMBNJrTIfo163F3F2Zo8FFqPa4MiCMY2d2nUs0hyR1ENgPTRcxQV2Ms
9+et5+n4hw7urrlSRb68utZJ9KsG3rmv1pXbNGTEfBqcjRAKuXR+zEAfPJnxhHma
qwIDAQAB
-----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 344107531213802674397437925751451699674411
 . . . . . . . . [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 2023-10-10 14:41:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-08 14:41:37 +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 'mazars-proposals.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 23479212272342399398664839591496157145027637654312854722465731192758243953411726271882905794744346333842868725962414277089677275488615597326491187409495313148274360656177427628923496217394120289403521308181637673280243716239070904110625605893920032255318090270682534079370709398347895108127048475530250048431039691323106422160766666194596924481933142959160986835703388104086990980750680918396859857350630416855842778111887529569303639302438034636998799293417086359142009463204752476297059108495242601818445005357322375685862221217438628220890674499015203170935827886795803793992792400748106323887927142266027789359787
 . . . . . . . . . . . . . . . . . . . . [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)
							42cc21024539f35e11c0826d085080e13fd22bc2
 . . . . . . . . . . . . . . . . [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 (78 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mazars-proposals.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'proposals.mazars.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mazars-proposals.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b1a4039220000040300473045022035f66381504b0440805bfd2080d573edd37066caa91b3ef23ab4c0b056fbbe08022100cc9646176da1d5b6f03746ea06d5e1347f4f4e71ffb92bbc05a9f448cd4627b900760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b1a4039580000040300473045022006f9d8cb7bf4a3a5d67e8909fcaac4b23556a44214e66fe04f301276aad8933b022100a513ab52cb55cf3c586125fbc12f2354c7b33b0b094f0fd9158adafddf72ece1
 . . . . [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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