a2ztech.co.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:2e:9c:20:be:56:43:a1:ae:fc:85:9d:00:3a:9f:be:f4:de 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): 03:2e:9c:20:be:56:43:a1:ae:fc:85:9d:00:3a:9f:be:f4:deSerial Number (int): 277197376254978206878953114362393055392990
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 2f:de:6e:70:21:4d:59:ed:2f:8e:22:fa:89:28:44:e5:e1:35:cb:c5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 25:fb:7e:7f:8c:77:65:04:45:b9:f8:fb:99:b7:48:78:65:85:aa:bd
Fingerprint (sha256): 0f:ca:c2:50:b3:8e:f8:1c:4b:82:43:9e:e0:50:91:be:0b:2b:bc:83:4f:71:de:ef:1e:47:5e:0f:81:b2:33:28
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck 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
www.a2ztech.co.uk
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a2ztech.co.uk
a2ztech.co.uk
a2ztech.co.uk
a2ztech.co.uk
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sni52705.cloudflaressl.com
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Certificate
The complete raw certificate details for a2ztech.co.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFZDCCBEygAwIBAgISAy6cIL5WQ6Gu/IWdADqfvvTeMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMjIwNTEyMTRaFw0y MDA0MjEwNTEyMTRaMBgxFjAUBgNVBAMTDWEyenRlY2guY28udWswggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCuzNAKLkKJMqnz1k6FLtnIprXDDn/JyLtP GudAMFBVMbCZlN0FH8IdFMFHJs9T8wFaRrQQyJ48Bm/BISn2L7QHy4pRALjO2RPY 4NjeVZZA04dtbEP9XV1KcMLu9XYY5OyCFYM8aXDxCwHy6XXD/iNDi4wQ+z+RMEEd 3nTU2T5Bxs9fs6dbvIHQhrBMOf51seairAdMRoW3pXApimUmWNRticrHbwc3m5Qe gB9qDPtvkUDL35v0ZNRPfId7BuYNE5LUnLs2f+PKGJKnAdvjoxzCWYXA8LhBxGLV 6aUnapzb0E9xVtVG/sBz9BmX3cijkIYC7a+8TGys674+soSIEQJxAgMBAAGjggJ0 MIICcDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF BwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFC/ebnAhTVntL44i+okoROXhNcvF MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMw YTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9y ZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9y Zy8wKwYDVR0RBCQwIoINYTJ6dGVjaC5jby51a4IRd3d3LmEyenRlY2guY28udWsw TAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcC ARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0 BIHxAO8AdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAW/L4UD6 AAAEAwBHMEUCIQDR6CJkwDGJTAoSW/K0nMvxjzFh3Qebf1usHv3+HsJjvAIgcAM2 Q3d8GVAUWzZlMmgifeSJk/fistrQhL4bQYdY3/wAdQAHt1wb5X1o//Gwxh0jFce6 5ld8V5S3au68YToaadOiHAAAAW/L4UEjAAAEAwBGMEQCIEJVTMiN0ywa9FSY2NJx YQfC0wAxgq087aFFJF5YKLwAAiA8h2joqZ4jx4kn0pNO4BOPSUYqFIqX1YyxuLBS zGYAkDANBgkqhkiG9w0BAQsFAAOCAQEAPmKpk/ZUpAs32PH1BjHP+Eu6ASMV5DMf M49sDWdZZR9zI77ZwNoxowHrTMRBhp+n7W4xoHEkHdpuobHUr+QghrEh/eyFIj2T q7aUMhD9vvShz5W8HLxfyU19ECFUDgUiFXrtBpo6SdFa9lF6b5OI0p3slDrhdkxZ JZzSMeCwEYjon3DI9N14fu5ZaXG8mDMkAeo2bXSOXSLwLcXSnHuTub9+CFIsdMLG 4zgq6riu6PPZI1AKhxIC4xALWK7oK9JtgErzdQmtGJLhB3Y3pgf9d3Rn5Scjkjp2 3xJRP8XGRQHuRE3FuDutoVFJnTQoNXge8W3a0J/9DXp7J9c+fO9ERg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArszQCi5CiTKp89ZOhS7Z yKa1ww5/yci7TxrnQDBQVTGwmZTdBR/CHRTBRybPU/MBWka0EMiePAZvwSEp9i+0 B8uKUQC4ztkT2ODY3lWWQNOHbWxD/V1dSnDC7vV2GOTsghWDPGlw8QsB8ul1w/4j Q4uMEPs/kTBBHd501Nk+QcbPX7OnW7yB0IawTDn+dbHmoqwHTEaFt6VwKYplJljU bYnKx28HN5uUHoAfagz7b5FAy9+b9GTUT3yHewbmDROS1Jy7Nn/jyhiSpwHb46Mc wlmFwPC4QcRi1emlJ2qc29BPcVbVRv7Ac/QZl93Io5CGAu2vvExsrOu+PrKEiBEC cQIDAQAB -----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 277197376254978206878953114362393055392990 . . . . . . . . [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 2020-01-22 05:12:14 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-21 05:12:14 +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 22066461948650352989878070200415460614782449153703575967610259907705776369858761729403947577918140652125899369888777400445545450663534854616079642629962027384594372006543854211540415093710312666591983318543766422687640393260584819747994905874330706606969656117690006704902336440446450424506570490974668645768439621552902639081650000172634762510769199652066160551455734031218971028635735030622800084061094919039057294923930553067790085449947904098471071459680337055728435845496699371957848641393793660718810242865507574258768030011362393747555921446356935860698204425064956876059124133519841389728559939733911069852273 . . . . . . . . . . . . . . . . . . . . [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) 2fde6e70214d59ed2f8e22fa892844e5e135cbc5 . . . . . . . . . . . . . . . . [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) 00ef007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016fcbe140fa0000040300473045022100d1e82264c031894c0a125bf2b49ccbf18f3161dd079b7f5bac1efdfe1ec263bc022070033643777c1950145b36653268227de48993f7e2b2dad084be1b418758dffc00750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016fcbe141230000040300463044022042554cc88dd32c1af45498d8d2716107c2d3003182ad3ceda145245e5828bc0002203c8768e8a99e23c78927d2934ee0138f49462a148a97d58cb1b8b052cc660090 . . . . [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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