gtcore.ca

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:e1:ac:7e:53:ea:75:75:02:b2:04:b2:08:10:a0:6a:a8:62 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:e1:ac:7e:53:ea:75:75:02:b2:04:b2:08:10:a0:6a:a8:62
Serial Number (int): 425241959430947060118800618560998678898786
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: dd:83:e3:de:46:79:75:12:34:62:7e:2e:89:d9:2f:c9:d3:0f:cd:ef
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b7:72:13:10:fe:f1:97:9d:e6:e3:14:7e:61:2b:2e:a2:92:d0:73:01
Fingerprint (sha256): 2f:52:7a:f1:bb:14:7f:b5:40:db:e2:fd:b7:6e:81:28:be:db:36:3f:85:be:3f:c4:b7:12:7e:f1:96:19:46:2d

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 425241959430947060118800618560998678898786
 . . . . . . . . [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 2017-06-25 11:51:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-09-23 11:51:00 +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 825133378216468235108398911245932866018302377265383146128642941781356037575852059222403642724597444601884863081703791274162241228000504069804595256585317279170839207455209288676188350267727271724537067989814346752258635264733927194125217126466968524266002808874058705528830336093050212417340371338434661388243133781725005386652615656737913358320878320134322235862653434825519805345308036114646689966056494339729375956238777622696488364608560783189268026628942289645609040307048169907270698098512943667068460181913890258985640069160307593665032648580340972613720227547007142489570150672215310576032474501352099996159934442695742933743020616498799683747611559332668996718304854262220418019212379220457128013576444546912359885533550229344477028329884340783147069824234658136857388878172807263285040077372357103360438300112361274917087173300963216037717489096736463946662596423865610425257369713353230218327465837460820515755099290936174717554093959752295808441779657057793529968788628986937553130843683335974816873256923388062500823047871263633413145957546528979985881510388382111087811574850009589908074406001036415757138390608568006879036829163296596487844099343727238293227123799279961565074018028275377659690439102412890244537898409
 . . . . . . . . . . . . . . . . . . . . [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)
							dd83e3de4679751234627e2e89d92fc9d30fcdef
 . . . . . . . . . . . . . . . . [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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