gtcore.ca

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:ab:eb:42:b9:b0:d1:3d:9c:2b:8b:0f:05:12:30:17:a8:02 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=gtcore.ca

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:ab:eb:42:b9:b0:d1:3d:9c:2b:8b:0f:05:12:30:17:a8:02
Serial Number (int): 406950143507378272494578144567440742787074
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d5:94:ba:57:36:be:69:8c:03:d5:11:e7:7e:ad:1c:28:ee:41:a9:e5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 7a:10:0d:03:6f:e5:90:4e:70:02:b2:ba:ca:9e:90:26:6c:39:ca:5c
Fingerprint (sha256): 69:98:48:ce:59:3c:ba:ac:60:7e:10:89:fa:54:66:94:bd:2b:86:06:af:f6:0c:82:4b:b8:49:ec:23:b5:22:cd

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 gtcore.ca

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for gtcore.ca

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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

gtcore.ca
www.gtcore.ca

Other certificates including the domain name gtcore.ca

(limited to 100 certificates)

Certificate

The complete raw certificate details for gtcore.ca 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 406950143507378272494578144567440742787074
 . . . . . . . . [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 2018-01-28 11:51:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-28 11:51:17 +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 'gtcore.ca'
 . . . . . . . . [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 972669526717324373988634545746939240773519020235112641492163934237643715200227626716681352003473977305207164978420908636789679115449323696230688312701691868018650870257124319225797517963737629775505260181955039081795781651439353705226016262558239799086442559325502281717510568096276373278185496744122798638597554935544263970004588412389274521117374038128218133440989384280026352011990751888847297051035498987431846183574387997103870417323137295518101711526309046936790265843285116931802857796421330838224247288889094500059020047025863641311638972711127342781339203442029831949052206107256866301253216616547021639533864093649277980831337319522503334079481051910108911661434926181247059783689065743405171476536370886793233186009765442386666966372012132423531709803057601839491385256943809659664401913921805811425197508870470408587175956340076114563753723592063818256792564503193862777239912258518990240483404206865070671412513614797093249463906528511664389813078916926657877166055586499709140664377791855857728079589286648549819547093511572824383785130168251840278165302926851938454232988056230588231505832078250030679622720752021381669263172491986671477212483926355093345686170156625239587456313895600004611549233080918363153487851957
 . . . . . . . . . . . . . . . . . . . . [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)
							d594ba5736be698c03d511e77ead1c28ee41a9e5
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'gtcore.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.gtcore.ca'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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