taglab.ca

Issued by R3

About this certificate

This digital certificate with serial number 04:f7:73:af:c2:59:1a:53:1a:bf:60:53:7b:76:68:70:a3:1a was issued on by Let's Encrypt.

With 8 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=taglab.ca

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f7:73:af:c2:59:1a:53:1a:bf:60:53:7b:76:68:70:a3:1a
Serial Number (int): 432652662169825212631771825672056252441370
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 18:68:e0:3f:e8:bf:89:57:83:33:c4:30:4d:52:26:75:67:2a:27:5f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d9:77:69:96:70:62:15:5f:90:85:36:6e:95:4a:65:38:90:2a:5e:a3
Fingerprint (sha256): 95:da:67:a0:f0:af:e2:d7:6d:c5:b0:d0:4a:9c:40:2d:99:ad:9c:42:28:8b:90:6a:79:d8:26:90:8c:3b:52:11

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate taglab.ca

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for taglab.ca

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

cosmin.taglab.ca
ron.taglab.ca
taglab.ca
taglab.toronto.edu
taglab.utoronto.ca
www.taglab.ca
www.taglab.toronto.edu
www.taglab.utoronto.ca

Other certificates including the domain name taglab.ca

(limited to 100 certificates)
taglab.ca
taglab.ca
www.taglab.utoronto.ca
taglab.ca
taglab.ca
taglab.ca
taglab.ca
taglab.ca
taglab.ca
taglab.ca
taglab.ca
taglab.ca
www.taglab.utoronto.ca
taglab.ca
taglab.ca
taglab.ca
taglab.ca

Certificate

The complete raw certificate details for taglab.ca in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqhOTkCAzJoSBh9d+/fEZ
bryYr5hnFh9kYf/myiDige7VQXJD82UzPPa94RvnlcLId1jAnNELAUehN4dWdJnz
FJWxZgP4YsFInYF/26xs7cL1aLG8nzSZvbiuPlsl5GM8WJyieQlkFVZdmGRBmk9O
lX/tTPuuXT4nEJnz8qJ10Hac/O8QSX0A+WsMvNz9Zd/4X25kJdiZa2ZATqFk7/LO
khN4OH1a9vAHnuaAX3KhYSndM0t1Eyn3UX5zrqicibQOdm8kt5Xw9hdERGJ9dBLQ
hN1gDj9MlckAi/y4qjE/MLIlnbpg2N7sEWBUvM3uIKx3QCGf1GHhSpCj6Vr5SboZ
AQIDAQAB
-----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 432652662169825212631771825672056252441370
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-18 03:25:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-17 03:25:23 +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 'taglab.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 21470165335704211032234075535976678285684711490768720326901596353521136272974659903065780347693388531152674943884354148085989407558696099241790411050787767681581048038896317149397588711101016909279688402907760043203655600901607872038693137295034291829497753285450406566064188134941529848240983378300534033316939672861600351964057440670097340811850659619928407687556397567539060277393042918444774978063910229620865063937438577732024903519069698895901342756911479958031417219104643993189290316100256936561936975886950388680592406222025583198888028947785347323982087671842484210120405715853481656751221214497435513657601
 . . . . . . . . . . . . . . . . . . . . [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)
							1868e03fe8bf89578333c4304d522675672a275f
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (150 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cosmin.taglab.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ron.taglab.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'taglab.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'taglab.toronto.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'taglab.utoronto.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.taglab.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.taglab.toronto.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.taglab.utoronto.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d1ad10cef0000040300483046022100f1eeb236fce1f9a5f3417b517ec891e57001e2a8c281815d3539768f593d3841022100efc7d8f90712a2b24d8ab69c71773d622dcd3d75a0443b7733555ce85f2bca96007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d1ad10cf00000040300473045022100c6e78a6e8d78cbebaa249afbf2110630274848156463e0d05e9f8031c44aacfb022024d3e4af32cc061ec5a6cf133724db3a583d490acb6cb2d59ce5622947451ed3
 . . . . [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)
		001e7ee8cb8569067f444189585b49ecf8f676ecc4993069fb70f886675247ac3bb654c5c955a6fe75922874a02178c6bba40e0fa184da80ff5c29387d595bdd1bc82405c3287577dc972f1369a8b8df68600cb9bd2b9e3e0907948820e7346d98e88f7f4d80ea77235c703a5234b41a194ce90252c3ea792dc5d79b81f65fdcb74f9a078767955b2676c0aa448ea79b4bcdf669c27c959a241c4befd9e01ddb6fdc3bb08b08eb0aff312f3b71ed014496b0c52f53c010cefcff8edad58ab40f136975c5888131193ff69113edcfe7ec7936e5c16d0db722c4dba8e982b228818c60e5025bdaeac15b25a1605dcacf3d692199c5c958d20245ca8c8c617b233e13