a2ztech.co.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:0a:76:09:54:8e:43:51:ad:2f:8d:95:00:27:7e:ad:81:55 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=a2ztech.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:0a:76:09:54:8e:43:51:ad:2f:8d:95:00:27:7e:ad:81:55
Serial Number (int): 264896578813658111481218621612529250304341
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 64:a7:56:17:16:97:43:fe:40:f3:97:d0:e9:0d:34:c2:df:ec:a5:75
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 23:2b:39:8b:a8:dc:2f:25:46:da:0e:5b:57:35:8f:18:ee:7f:43:e8
Fingerprint (sha256): 33:d0:af:e8:c1:0e:90:63:a7:e9:6b:4b:90:99:cb:38:5d:61:e4:d3:38:da:9b:50:c4:07:66:a4:71:07:da:a6

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 a2ztech.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for a2ztech.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

a2ztech.co.uk
www.a2ztech.co.uk

Other certificates including the domain name a2ztech.co.uk

(limited to 100 certificates)
a2ztech.co.uk
www.a2ztech.co.uk
a2ztech.co.uk
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www.a2ztech.co.uk
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sni52705.cloudflaressl.com
a2ztech.co.uk
a2ztech.co.uk
sni52705.cloudflaressl.com
a2ztech.co.uk
a2ztech.co.uk
a2ztech.co.uk
www.a2ztech.co.uk
a2ztech.co.uk
a2ztech.co.uk
a2ztech.co.uk
a2ztech.co.uk
sni52705.cloudflaressl.com
sni.cloudflaressl.com
a2ztech.co.uk
a2ztech.co.uk
pim.a2ztech.co.uk
sni52705.cloudflaressl.com
a2ztech.co.uk
sni52705.cloudflaressl.com
www.a2ztech.co.uk

Certificate

The complete raw certificate details for a2ztech.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq0twLTbb9AcgWFk1c2sD
Vkd7VXa6kCaLx49mAHISZ96vydvGrSpyi/8W4zWilwP6jYxkxJup0iR7VfFHWSkQ
8+N88cGmgYVPGlKA7i1/6tDE/l+z8bnrIm2JmfqDDbag9oIJGfgcQzbCgyq6qVmI
nQMOFZnLJocrzMcxO4aR3Q4E5EdJvArxN1uSa5dSh1pcbeIe+3hM97P2OTeGALt+
wKmlltUFHHBYnfLScpaCbeJhQt6bFdUaVk+O8UnfkWQ/8GiFVzYPyjKF18vVvh9m
o9QtbQVoLpJ2GRB6Fr6ec/zjtBzGJN7GTDPo6SuyAylVZqLrRUImYFKGdbreNqKg
vwIDAQAB
-----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 264896578813658111481218621612529250304341
 . . . . . . . . [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 2019-03-28 08:41:27 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-26 08:41:27 +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 'a2ztech.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 21623950107104711857769069832036795393295880383126222200781684781662607137715156605135319533028728887904553052937109888066462842568556963746225140899536327377036284932010064869667452935021740262272557144811719574856097981322408852074802245963058428342967755478350535581816588714442788923743942469671314234060703576111031186747342752286193136743563107413745588584126447681324880010565789508958129537030009806770514534354757453792976449609463936509298896560237647526293967451492691889053644262135689801921059118666946512971953638911173995919289407559842025383886284074006371897339223324142586931783687529190449666498751
 . . . . . . . . . . . . . . . . . . . . [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)
							64a75617169743fe40f397d0e90d34c2dfeca575
 . . . . . . . . . . . . . . . . [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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'a2ztech.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.a2ztech.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169c3acfb1f0000040300473045022100a64fbb6d941ca864668d6cebf91327e3b5b1ed05aa125cc21c8e2aca1cdd5e5402207d7ae3fba752e3f2157bf262b06f6b36489cdf55eafd058a995383ae8b6b8e66007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169c3acfb94000004030047304502210096f536c199ef724ee3be47b42927962a5938cab6f27fe8d8b54c24fa12884b5e022031dc7d4bc142dbe9a595e8f431929499a39805ed1557f6d9f12100110a2befb6
 . . . . [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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