about.knowre.com

Issued by GTS CA 1P5

About this certificate

This digital certificate with serial number 57:2b:c1:df:30:9d:86:8c:0e:a4:2a:5d:0c:c3:de:bf was issued on by Google Trust Services LLC.

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=about.knowre.com

Google Trust Services LLC

Organization: Google Trust Services LLC
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 57:2b:c1:df:30:9d:86:8c:0e:a4:2a:5d:0c:c3:de:bf
Serial Number (int): 115870036586184141189809080489205817023
Serial Number lenght: 127 bits, 16 octets

SubjectKeyId: 6e:21:b0:71:10:10:a3:c0:2b:56:5b:0a:5e:2b:0f:d5:35:e2:d5:23
AuthorityKeyId: d5:fc:9e:0d:df:1e:ca:dd:08:97:97:6e:2b:c5:5f:c5:2b:f5:ec:b8

Fingerprint (sha1): bb:c3:24:c4:67:c1:4b:43:2c:1a:98:27:79:d5:b0:a5:5a:06:e1:3b
Fingerprint (sha256): 9f:fe:0c:e8:41:3e:4a:bd:4e:23:69:4c:6e:33:75:89:81:6e:af:cd:c7:f7:6f:10:16:a2:9b:51:b3:e0:80:53

Issuing Certificate URL: http://pki.goog/repo/certs/gts1p5.der

Revocation information

OCSP Server: http://ocsp.pki.goog/s/gts1p5/72ZGvJjeDJQ
CRL Distribution Point: http://crls.pki.goog/gts1p5/7UCuXZuLUIg.crl

Check the revocation status for certificate about.knowre.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for about.knowre.com

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication

Extensions

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

about.knowre.com

Other certificates including the domain name knowre.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for about.knowre.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyup2PSirbn85tR+bcpkg
ZmpjIaS5dgYPFqqqjPkni2Ul1Slj24r4FBpNbToAQZsLIfR9DsOA/dfFnl0eGoWf
xU2cAFf2Hy4B1KZpNPcF+MZOW2CuGlBMfDhpXQrkFRpDc9nZhlSa2E6aILRqZBOz
I0ePWqV85WgPb0N+/vlyP0+VPoWe/QIcGwzJUBkM6YDdqq1v7lvS/9OS9Nz2AdEM
7uSw97wqTqjzpjTJzS1BvGwpjAdYQZg+3nLM0FWzFLHXZKjLjhn7xf5jZDoAsIm1
Ws0lbfkDG69CBNGsqsi8C30mOkEH2IlWn9jOoJFBtpXCFOK5t/ZfwpyT6KiRPO8R
EwIDAQAB
-----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 115870036586184141189809080489205817023
 . . . . . . . . [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 'Google Trust Services LLC'
 . . . . . . . . . . . . [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 'GTS CA 1P5'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-18 17:27:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-17 17:27:22 +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 'about.knowre.com'
 . . . . . . . . [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 25615755060712712865525527280075161094773788111494273228654604581901602486938757981378715577037904576208300590818250521666673645567249563275677310601518822314451088075824607360699357145439155382876740863953789322090440724089703076743493054799755157931617474062632614611772955986730341156068704778707777976684559601625631323613018139911988449124934983393032379289092968041116810479701254120782398591252390698618134174331894454506442441884326398908467008475618813678203707859779872027426049176020453856477125629430687093937660255847319255410392646903954544284468469013060107209158549539304638051714661509783239829426451
 . . . . . . . . . . . . . . . . . . . . [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 (12 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: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)
							6e21b0711010a3c02b565b0a5e2b0fd535e2d523
 . . . . . . . . . . . . . . . . [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 d5fc9e0ddf1ecadd0897976e2bc55fc52bf5ecb8
 . . . . . . . . . . . . . . . . [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 (108 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.pki.goog/s/gts1p5/72ZGvJjeDJQ'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://pki.goog/repo/certs/gts1p5.der'
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'about.knowre.com'
 . . . . . . . . . . . . . . . . [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 (26 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 1.3.6.1.4.1.11129.2.5.3
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (53 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crls.pki.goog/gts1p5/7UCuXZuLUIg.crl'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018d1dd3e9480000040300483046022100ddbc426ddc71ebacfb27e5ec62209fc25662c6eee361fa5d5f155b13b664da1b022100e970cf69bd2dfe6beb91e298533f5ca6ddf031d2e13f71e86644677cfa46648b007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d1dd3e83c0000040300483046022100ef87317379f4ebb086e1e0f6e70513af9ebcbcd2d2e201f677a754abe45acddf022100f1bd71966782e80045cb23905b64812d898da718f82fdba8207b6e17ddc37cef
 . . . . [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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