optimalfireandsecurity.co.uk

Issued by Sectigo RSA Domain Validation Secure Server CA

About this certificate

This digital certificate with serial number fd:4f:fa:af:48:56:db:10:01:ea:6c:76:03:f9:dc:05 was issued on by Sectigo Limited.

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=optimalfireandsecurity.co.uk

Sectigo Limited

Organization: Sectigo Limited
State / Province: Greater Manchester
Locality: Salford
Country: GB

This certificate has expire since

Certificate Details

Serial Number (hex): fd:4f:fa:af:48:56:db:10:01:ea:6c:76:03:f9:dc:05
Serial Number (int): 336709958875125242962351559825528839173
Serial Number lenght: 128 bits, 16 octets

SubjectKeyId: cf:2c:78:cc:42:79:c7:06:c2:e9:2b:0c:3e:e4:0a:bc:e2:35:30:ee
AuthorityKeyId: 8d:8c:5e:c4:54:ad:8a:e1:77:e9:9b:f9:9b:05:e1:b8:01:8d:61:e1

Fingerprint (sha1): 46:a3:34:32:e3:43:a6:82:f6:fd:5a:af:34:16:42:73:3f:d3:9c:17
Fingerprint (sha256): a3:8f:10:f4:33:76:e7:69:6e:8f:1c:ce:28:09:7e:f4:26:42:df:00:26:ab:80:90:35:f2:dd:cf:36:17:f1:fb

Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt

Revocation information

OCSP Server: http://ocsp.sectigo.com

Check the revocation status for certificate optimalfireandsecurity.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for optimalfireandsecurity.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

optimalfireandsecurity.co.uk
www.optimalfireandsecurity.co.uk

Other certificates including the domain name optimalfireandsecurity.co.uk

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAi70jLY1hIbqbXsAMp4hd
gGayizhDLIk9lhTvVd8PUTzxjvxMGFwyQxY5RMUlgkjdz1XOEigb7i0lSxytfJGY
mb6Gc5DxW4rXrZsDRzYlqa6dPdP516ex4w1P9+cmf4RCK2ecfje8X2Ulm7EqPJbx
9TNTo493s/NPStPeeoexY7NrVWtQHVt/t/rzZDlpghrYsq21bZgXXEL6nZsBFulf
f4RoFulw0WvnsyTXOtWSwKmpKJarL9YnxJuPThtMcmVnA1ckmyDzhVunV4ojvekm
hDyenTlIkgACDKSkHEgt3LyU+VQNzzCoLG/Wg0MC07X95Nle1uSSjbVVa2dIPKcO
FQIDAQAB
-----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 336709958875125242962351559825528839173
 . . . . . . . . [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 'GB'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Greater Manchester'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Salford'
 . . . . . . . . . . . . [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 'Sectigo Limited'
 . . . . . . . . . . . . [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 'Sectigo RSA Domain Validation Secure Server CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-23 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-21 23:59:59 +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 'optimalfireandsecurity.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 17640391525151683581915034160877459997566376427349964872831029468257232861322632513210522430310192256726857020836433103305792634925113313267605385928033792822331236257063499080431718527927951484777571353888931250740917918488418103849745381850153728454787110239364433130874986307640402764061546845321104224093089024340607508230974274278989456693393749395821336507660699499864010164440163751361566608999346497085132051711879092062492614557095679339090220224178036224808939085889979042256880494864476287057087963270022990904422460160776433194478897444319584391549282872956219450061977489987744011625400220591132022083093
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 8d8c5ec454ad8ae177e99bf99b05e1b8018d61e1
 . . . . . . . . . . . . . . . . [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)
							cf2c78cc4279c706c2e92b0c3ee40abce23530ee
 . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.37 (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 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (66 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://sectigo.com/CPS'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (120 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.sectigo.com'
 . . . . . . . . . . . . . . . . [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 (66 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'optimalfireandsecurity.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.optimalfireandsecurity.co.uk'
 . . . . . . . . . . . . . . . . [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)
							00f1007600bbd9dfbc1f8a71b593942397aa927b473857950aab52e81a909664368e1ed1850000016b83cb54f10000040300473045022100bf12d3ece88194c5befb1ef62e3b6a74dbac6b77e4456618a254a1fbedbaffc3022072cecae04a5ecc74a5e6c6471a2ffcc2b8ed123aca5966072d8ccef9fa8a9435007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016b83cb550e0000040300483046022100c80268d6301df2ff96a62d4706cb38cf6b63c5d42d7af1789d9567a218c69487022100d30bc111b9b44a9c99b1bb954b3c27a413a349413c0e10d3d1ccb457e52695c8
 . . . . [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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