www.martkos-it.co.uk

Issued by Symantec Basic DV SSL CA - G2

About this certificate

This digital certificate with serial number 20:2d:b9:eb:05:66:02:01:c2:d1:bd:53:57:e0:62:fc was issued on by Symantec Corporation.

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)
  • Sub certificates SHOULD include Subject Key Identifier in end entity certs (RFC 5280: 4.2 & 4.2.1.2)

Certificate Subject

CN=www.martkos-it.co.uk

Symantec Corporation

Organization: Symantec Corporation
Organization unit: Symantec Trust Network
Organization unit: Domain Validated SSL
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 20:2d:b9:eb:05:66:02:01:c2:d1:bd:53:57:e0:62:fc
Serial Number (int): 42772720089816986547278799999690892028
Serial Number lenght: 126 bits, 16 octets

SubjectKeyId:
AuthorityKeyId: ca:ac:5d:e1:90:2f:f1:ef:8c:d4:9f:35:01:e1:01:3b:a0:ce:c1:77

Fingerprint (sha1): 65:0b:fb:06:88:1b:68:7e:b6:22:11:d8:98:90:66:1f:a9:e6:3d:c7
Fingerprint (sha256): 00:01:5f:00:bd:9a:f8:21:ae:2b:63:37:f5:86:e2:ad:25:e0:37:4a:05:14:77:57:df:cd:76:32:b0:82:d7:be

Issuing Certificate URL: http://hd.symcb.com/hd.crt

Revocation information

OCSP Server: http://hd.symcd.com

Check the revocation status for certificate www.martkos-it.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.martkos-it.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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

www.martkos-it.co.uk
martkos-it.co.uk

Other certificates including the domain name martkos-it.co.uk

(limited to 100 certificates)
www.martkos-it.co.uk
*.martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk
martkos-it.co.uk
www.martkos-it.co.uk
www.martkos-it.co.uk

Certificate

The complete raw certificate details for www.martkos-it.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoryL57aqcsyjopjcWVNJ
xCVi8MyT4Duw/tw2CBxdMgrOrsYsPoSEfrSR23jZwFAMoH9luajHhtv0pfjeSPfk
TydAL3Nm7h9+XbguDn7zNrmt4h4SuCQaU8lArQV9rHux2VZQm6BSTqbYzjJx6Rml
n8Z0G1IwoasYSJhmfzT0GxWAUN+cnOD2uzoGEEutYlZcU5nR8d+wOxr+17gax3B2
h5SebE2qy6PgpGSqyx4T2gOreIdBx9a7smp4g9IQJWNGQof/db7Mo7BboragxWmI
4ldCmK+MXVTOzZ+FgFyV8rbwJa0yrUC3zXSCkP9gFCet6s/QCuUm69InFnGAwt9o
6wIDAQAB
-----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 42772720089816986547278799999690892028
 . . . . . . . . [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 'Symantec Corporation'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Symantec Trust Network'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Domain Validated SSL'
 . . . . . . . . . . . . [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 'Symantec Basic DV SSL CA - G2'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-05-03 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-03 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:12|false] UTF8String 'www.martkos-it.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 20543581151083545086787257149203509452084125686590034255794365310154469571146294006366828620956798270653506168743626053384575565350808257082916520988107928420264859949350872180490334430959954644780399689941827332517023135632223939265077545553617499945515397472508637563743915900694035814895083084053598536897964340275829217700130806058739183602918680485330460972649026592836574887526017054473074854854645332659051126033464526855894925073239594950947881110301445903535053154326762401452094197664503009805629936068596270769462158537108272496856779257157917468121704144199074852940202297323921911569119829133655959103723
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.martkos-it.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'martkos-it.co.uk'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (90 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: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://d.symcb.com/cps'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'https://d.symcb.com/rpa'
 . . . . . . . . . . . . . . . . [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 caac5de1902ff1ef8cd49f3501e1013ba0cec177
 . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (75 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://hd.symcd.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://hd.symcb.com/hd.crt'
 . . . . . . . . . . . . . . . . [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)
							00ef007500ddeb1d2b7a0d4fa6208b81ad8168707e2e8e9d01d55c888d3d11c4cdb6ecbecc0000015bcd8c4d54000004030046304402207c59e9f198fa40f9c86008eb6a4cb550d4376c95f70ffa23db94f293eb6c33bf02202aa73695c7e0cb07eeff73a18b2d2306e82c82f5ca7a26077a5817d17fe45dea007600a4b90990b418581487bb13a2cc67700a3c359804f91bdfb8e377cd0ec80ddc100000015bcd8c4d6300000403004730450220133f86f3a9097aa25a410e63f8875c7cbd0224c27d93d3d610c5f2e1b77a073f022100cfb8064cc73b085ab94b60e424b61a1ca1c04183042f415f655482fa78703810
 . . . . [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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