synergybuildings.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:00:16:6f:2e:9b:51:f4:f8:7c:75:97:7b:7c:fe:7e:5b:77 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=synergybuildings.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:00:16:6f:2e:9b:51:f4:f8:7c:75:97:7b:7c:fe:7e:5b:77
Serial Number (int): 261366678101435876849768433290487598570359
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 36:c4:dc:61:30:4b:b8:88:83:68:e4:03:92:2c:9c:8a:26:32:be:02
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 6e:82:02:80:1c:44:da:db:68:69:11:60:08:7b:14:54:76:0b:c5:bd
Fingerprint (sha256): 1f:17:63:67:f7:43:47:09:50:49:03:64:74:47:f4:2f:ae:e6:78:9b:54:6d:58:c5:34:6d:b6:a6:09:f1:7f:16

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

Revocation information

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

Check the revocation status for certificate synergybuildings.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for synergybuildings.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

synergybuildings.co.uk
www.synergybuildings.co.uk

Other certificates including the domain name synergybuildings.co.uk

(limited to 100 certificates)
synergybuildings.co.uk
synergybuildings.co.uk
synergybuildings.co.uk
synergybuildings.co.uk

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhj8486JZjwb9swNVR8XC
NRyHmtm7jJGuJ5yq0ez1lkwgPJUbt0sIZqIgGi5fGzwFyOddBpxkg/h8Ddlt2pbv
dHYYNC5XKbCk8qme6JaD7tmtKw4kDzwmYE279GcxNgeT+XxAwoqP2OX/wXerD0XT
RR4QRDLoHenmRmxHQBoPfp5wdSuq4MVJXXQIUouob2kZDIfGy3yOxqSJ2JFDzLMG
GzPNtJhPsuvB4LKPNfh4tsTiJBVe54ZM5wNRbL5gsrxdNzhj72hJ6HhSgwLtbbjH
2ScFMTMR7eP1LO3DnnIGDvZjjOcbF0Rq4LOBl6p+v/QidQn2LP8Hnedpp5U+Jmc3
5QIDAQAB
-----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 261366678101435876849768433290487598570359
 . . . . . . . . [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 2023-09-26 22:40:27 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-25 22:40:26 +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 'synergybuildings.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 16947109026158369106820337991711165337129922677741431968110106199915868173631341652489601313302733353606371860302376772328602232496512116993245276273255063370757934179791190356219724817845633799978809727425951531126735860080769191814494089029634045988740909368723226721961139249466612777607795868319654576549945996660758970541756570945168852206596247320109162225146829797356007686737962584276799494471309587194289071027036467195446745709085560746995890252218143319345784149975978034107656560257735169837181175101121556816117761762159969203215554233375259920433870653216030663541116549568646033541164338353521763497957
 . . . . . . . . . . . . . . . . . . . . [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)
							36c4dc61304bb8888368e403922c9c8a2632be02
 . . . . . . . . . . . . . . . . [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 (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'synergybuildings.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.synergybuildings.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)
							00f00075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ad3dd8fad0000040300463044022066694ba1879d97ab7978bc33f0cc863f4c4dff4957afcf9659496ae50473fa0202203f2e5718ce79ea9132b9befb7aadbff69d95f0025eb5691d625460cb86a755e2007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ad3dd91980000040300483046022100857883610b7daa6c235b569f53c58b7d2160f2b411beb921d599d49855691b97022100a29b72cb85649c80cbf0b2a58e717a970012660b12ea33bbc8a1b7458f0d1ec4
 . . . . [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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