wintons.co

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ab:88:38:96:1a:f4:6e:5d:11:4c:d2:15:3a:c9:c3:2d:59 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=wintons.co

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ab:88:38:96:1a:f4:6e:5d:11:4c:d2:15:3a:c9:c3:2d:59
Serial Number (int): 319706211359309064238028087088285109923161
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6c:72:e9:f1:92:08:fe:92:c1:9a:ce:6f:23:d9:a1:86:1d:b3:a9:c8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 9c:b1:13:16:e1:53:d9:31:56:45:0d:a8:4b:50:1b:0c:02:c8:d8:ad
Fingerprint (sha256): cf:75:5e:2f:d2:94:75:af:93:38:13:ea:b3:4e:4f:e7:4c:1e:73:6b:12:96:fa:9d:19:6c:80:0d:9c:fb:0a:81

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 wintons.co

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for wintons.co

Public Key Algorithm

RSA

Key Size

4096

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

wintons.co
www.wintons.co

Other certificates including the domain name wintons.co

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 319706211359309064238028087088285109923161
 . . . . . . . . [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 2020-01-10 19:42:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-09 19:42:53 +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 'wintons.co'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 765591569460588937287798522837423930863550073898235290059408426116663485804659808109081095452742007029971106214107893061753920112849334851577254914105940319145263754253300304976182276754533700308641090473933256237139780527384328761646997819269350911197142540222133998599079952034486761214062398046552152915662484289195783326347291681585274158570046523455321757841576839798758443503553090702618026386932946133042257379932511862120428101709765308179032889256994791773170659840787157805348163444185992944470609252425751188728681508066094693131411596865152739498329188215504655163951324889486208780733066067686285459460534017489254726955904976074130235204701301922630274947865585218746320874896762654692115053075235263531558991172072380671760149743014454570835114282299186087194006371253120109386133748342899735937454539782617867354042808387061102212800676373615758029616171109124786622873713436267605681415664968515140716825544838516688188241562402161895211727608900833954639933754812641900060154874782237150216734344033699913257281658338820744864987170061466367084536023456780220295604008861832298908773545024385812216825542611953061311754305111587778980270478565189983806985340373858711805241442621090757096011329225291337102585143463
 . . . . . . . . . . . . . . . . . . . . [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)
							6c72e9f19208fe92c19ace6f23d9a1861db3a9c8
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wintons.co'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wintons.co'
 . . . . . . . . . . . . . . . . [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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f913209330000040300473045022042fd6ea48ad3bf943eb607ae4bd6f24fce5c84863b533928734fa023ab3934c3022100a8d420e64c884572d38af829fbc4e6ad452495af45eb687274ada14ecbf1888500760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f913209820000040300473045022100821a742e397b35a17490838668ba5fcb90ea95480b5935543d62879abaf407b00220164a3fbf7da80a5e4e6f7b43bb8b4ce516f0c680be23f601abef44575f5733ea
 . . . . [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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