gtcore.ca

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:f1:68:d6:6e:24:98:73:e9:00:03:bd:57:8b:e1:c0:08:65 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:f1:68:d6:6e:24:98:73:e9:00:03:bd:57:8b:e1:c0:08:65
Serial Number (int): 430596547252040966085534402758475224451173
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 22:4b:a7:3e:52:47:f0:7b:b3:49:5c:24:34:98:03:95:ba:f0:4c:22
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d8:ec:5c:4f:87:2a:cf:3d:b3:54:2b:d3:a3:27:f9:97:cb:99:fd:56
Fingerprint (sha256): f9:3c:33:9f:cf:f8:36:7b:49:c3:06:3c:5d:36:2a:cb:b2:a5:a0:41:a8:4a:91:1c:ab:f2:c6:97:5f:7b:c8:74

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 430596547252040966085534402758475224451173
 . . . . . . . . [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 2018-02-25 11:51:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-26 11:51:16 +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 693478012879081778675350730361422499379369748414531152702371059456262891157764422750288102754432793324205077444735969682746155321389451903448104694924777197465093538573172754615500456070746239887273538304155071376620197760866628151531573931820709061554887457617804770104387623953956185591485869702645743723184996268324795021928207959780731050356182624801945909768908033080702017017237974972997282375363177285772090762156217445277844998483101461687569834365291063605629947664075354308275474339779692192270775486617700825555151234007083627755019346438991826136564590693156797002487842871191987180918268167264626390387479710905616667343944630634392313488960915517374463870906590545826729037143007691752200522818815680320189401536840074576212709494218754661295368023146442322672669595254947482405134661558458902673285752626106409288459294754226589824813446541424258897970574903202349509441355131994305022858456380220313671913186605399908990939495540392304864302708361629828943438975669727593304593522970003997534886286664953965719539731015709287867995856933796069369532374886687558149565674380446980359266433170963865898265143292998933949139113401701935009281227200026601663262774174206512861475863857203511827590783413048578327560163041
 . . . . . . . . . . . . . . . . . . . . [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)
							224ba73e5247f07bb3495c2434980395baf04c22
 . . . . . . . . . . . . . . . . [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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