a2ztech.co.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:02:94:17:ad:9c:0d:93:2a:b9:77:13:f0:a3:b4:1e:89:c5 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): 03:02:94:17:ad:9c:0d:93:2a:b9:77:13:f0:a3:b4:1e:89:c5
Serial Number (int): 262214271216547186719971668613110347762117
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ab:2f:02:36:2d:f0:35:d9:ed:66:7b:ca:cb:a6:c2:1c:c3:d4:47:03
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1d:c1:ca:2c:62:10:7d:1b:3e:37:db:62:77:36:c8:a7:01:01:1f:c2
Fingerprint (sha256): d8:bb:9b:cd:a0:6d:f3:6f:f6:0b:21:53:8f:84:9a:09:39:d0:ec:6b:4d:55:89:b8:57:08:ce:65:cc:ac:f6:4c

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxSusmVmDctmueWRZ0tQg
2D95JUzIzOXopTvYRl4OSEu8CS1vbTk16pw0/Lzq/CVk7SBRLz2v/SopxsPPVRfI
n67wXws/K4nCIU0/Aix+9OfJAvOyBYgCAK4ecJiWDcQFzNAjiWsLz+v+yT9Ac+mD
rule9c0AHye/2JHXRUkk9N3cu/Si2sjWul0VJxmaEZcjh/pDA7QWcVvtVf7+n1Q6
HLhCwrARV11zzYMy44vR21NgyiRLRhfQZTEAWu+qnUyY4uX7KPOQKYz1eprzlhHI
x/fsBgv5GKYZFJVCUIQZEhry4hvoB+k0IxkxMSFXQi61DqPJaAo5Sk54/ht+z348
tQIDAQAB
-----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 262214271216547186719971668613110347762117
 . . . . . . . . [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 2020-03-22 04:32:06 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-20 04:32:06 +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 24890482636374114456587865336416624238846740644007329590320999253262509996468783629943368576467560110673512282332131522860753578854022949574722929352082939158275662617066903545209780491321340269667835277496596790250654676014617610619732233643543892829267981113399465930677593134724240925818223373438187703955745935259962237015560652325613451249938667174943903870763259980944040508310687283039943265180393096609628496804767238967702787458652070873982505166371229138687314244312482895717489859174897609281014504804345967441725932457454261713084657947581437846290970700249180902662452281826211879141969948164208977657013
 . . . . . . . . . . . . . . . . . . . . [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)
							ab2f02362df035d9ed667bcacba6c21cc3d44703
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e0000017100ba131d0000040300463044022065b8e9202681964a19e14958536b2bcc89a76d161445c3f191d4ffffc56ba6870220373358b6420a90112d013049ec9d1d082bb97d45ff17f17cc5d6d9d7a7884e48007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017100ba1316000004030047304502203dc3e2ad08853b54ca58788a47c0e9de4743163967b21964637ed5be5daeb5a80221008f8d6c77f0fe28bf9436c7daf65c657c106e1030bc194ed3e2d4e244d09211e8
 . . . . [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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