firlana.com
Issued by GTS CA 1P5
About this certificate
This digital certificate with serial number bc:39:79:61:3b:7c:90:51:11:4d:13:fb:81:f3:cd:01 was issued on by Google Trust Services LLC.
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:
- 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=firlana.com
Google Trust Services LLC
Organization:
Google Trust Services LLC
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): bc:39:79:61:3b:7c:90:51:11:4d:13:fb:81:f3:cd:01Serial Number (int): 250193286003604678913802060729238670593
Serial Number lenght: 128 bits, 16 octets
SubjectKeyId: 46:3a:82:e6:fb:5e:8b:fd:0f:4f:b9:73:71:31:e0:c3:25:76:5d:bf
AuthorityKeyId: d5:fc:9e:0d:df:1e:ca:dd:08:97:97:6e:2b:c5:5f:c5:2b:f5:ec:b8
Fingerprint (sha1): 5b:47:5e:c0:7c:8c:f8:8d:dc:a0:58:e0:bf:5c:9a:66:e1:90:38:b9
Fingerprint (sha256): 91:dc:13:38:10:45:48:8c:3f:37:78:47:73:2b:a6:61:f7:fb:fe:1f:20:45:64:3a:6b:df:34:df:a5:3f:2d:fb
Issuing Certificate URL: http://pki.goog/repo/certs/gts1p5.der
Revocation information
OCSP Server: http://ocsp.pki.goog/s/gts1p5/UmCWgTtMbD0CRL Distribution Point: http://crls.pki.goog/gts1p5/eplfRroXWPA.crl
Check the revocation status for certificate firlana.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for firlana.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
firlana.com
*.firlana.com
*.firlana.com
Other certificates including the domain name firlana.com
(limited to 100 certificates)
app.tolkeo.com
firlana.com
www.csllama.com
cpanel.firlana.com
ikhlas.firlana.com
upbeat.simtopia.com.au
renny.firlana.com
s.rednfollow.com
ikhlas.firlana.com
www.gwenundjosua.ch
www.firlana.com
firlana.com
app.bestinfo.at
renny.firlana.com
firlana.com
lokobox.com
firlana.com
blog.firlana.com
renny.firlana.com
activity-matcher.andipaetzold.com
firlana.com
firlana.com
cpanel.firlana.com
cpanel.firlana.com
firlana.com
kin.network
ikhlas.firlana.com
renny.firlana.com
firlana.com
renny.firlana.com
cpanel.firlana.com
cpanel.firlana.com
getin.university
hugo.paultournemaine.fr
firlana.com
renny.firlana.com
firlana.com
www.developmentunited.com
firlana.com
renny.firlana.com
renny.firlana.com
comunik.io
ikhlas.firlana.com
firlana.com
firlana.com
firlana.com
www.csllama.com
cpanel.firlana.com
ikhlas.firlana.com
upbeat.simtopia.com.au
renny.firlana.com
s.rednfollow.com
ikhlas.firlana.com
www.gwenundjosua.ch
www.firlana.com
firlana.com
app.bestinfo.at
renny.firlana.com
firlana.com
lokobox.com
firlana.com
blog.firlana.com
renny.firlana.com
activity-matcher.andipaetzold.com
firlana.com
firlana.com
cpanel.firlana.com
cpanel.firlana.com
firlana.com
kin.network
ikhlas.firlana.com
renny.firlana.com
firlana.com
renny.firlana.com
cpanel.firlana.com
cpanel.firlana.com
getin.university
hugo.paultournemaine.fr
firlana.com
renny.firlana.com
firlana.com
www.developmentunited.com
firlana.com
renny.firlana.com
renny.firlana.com
comunik.io
ikhlas.firlana.com
firlana.com
firlana.com
Certificate
The complete raw certificate details for firlana.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFajCCBFKgAwIBAgIRALw5eWE7fJBREU0T+4HzzQEwDQYJKoZIhvcNAQELBQAw RjELMAkGA1UEBhMCVVMxIjAgBgNVBAoTGUdvb2dsZSBUcnVzdCBTZXJ2aWNlcyBM TEMxEzARBgNVBAMTCkdUUyBDQSAxUDUwHhcNMjMwOTI0MDc1NzA3WhcNMjMxMjIz MDc1NzA2WjAWMRQwEgYDVQQDEwtmaXJsYW5hLmNvbTCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBAIrqEASN/GMkFw/TKseC3Tg5PFE8I9b/iri4FiaF5DEZ HLsb8a5U3SXQIhnkbuw9UuF0JYDvRwiOlZ8yhL+5RdTny3MwkR8hBLfZY6e8ysa3 SCaMfm0FRhXq1qhynoBCug1fjAoavMX/XWRAg9VEjKqN0DhkN2E9rQUKHVy+owx3 n+MaRF1jtXRI+3j+REhqTEZt60tI2qJtA5C4MxwjTg5NTc6TeSnKeFTMalN/wdQz DV7QC/Jj/60BmlH1OqPO7+q0mnqtNk8YbDUrxEM7stv/0IaS/Ab1fymnGi5yVQhn Du7kmeC7fMccXcnIHorKMNywGdzDlAO98SdEulOD/RkCAwEAAaOCAoEwggJ9MA4G A1UdDwEB/wQEAwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAA MB0GA1UdDgQWBBRGOoLm+16L/Q9PuXNxMeDDJXZdvzAfBgNVHSMEGDAWgBTV/J4N 3x7K3QiXl24rxV/FK/XsuDB4BggrBgEFBQcBAQRsMGowNQYIKwYBBQUHMAGGKWh0 dHA6Ly9vY3NwLnBraS5nb29nL3MvZ3RzMXA1L1VtQ1dnVHRNYkQwMDEGCCsGAQUF BzAChiVodHRwOi8vcGtpLmdvb2cvcmVwby9jZXJ0cy9ndHMxcDUuZGVyMCUGA1Ud EQQeMByCC2ZpcmxhbmEuY29tgg0qLmZpcmxhbmEuY29tMCEGA1UdIAQaMBgwCAYG Z4EMAQIBMAwGCisGAQQB1nkCBQMwPAYDVR0fBDUwMzAxoC+gLYYraHR0cDovL2Ny bHMucGtpLmdvb2cvZ3RzMXA1L2VwbGZScm9YV1BBLmNybDCCAQQGCisGAQQB1nkC BAIEgfUEgfIA8AB2AK33vvp8/xDIi509nB4+GGq0Zyldz7EMJMqFhjTr3IKKAAAB isZoI3IAAAQDAEcwRQIhAJG4g7yyZGeI3XaZYm1B601yaXRqVljwgsaXgH1afM/e AiBGdfRSIAltVRJDezO9NbQvkLSpWpIl1LRCleCy0uM2/gB2AHoyjFTYty22IOo4 4FIe6YQWcDIThU070ivBOlejUutSAAABisZoI4EAAAQDAEcwRQIhAJjLLo3M9tFR rXqC3nYFOZFdfYxWYEyCCvji9i2gWMh5AiBiyaN6GbPwz5Xu4G6nB/nmmlJM9Hlc dLOxVfgaJ7ojuDANBgkqhkiG9w0BAQsFAAOCAQEAT8CoDztYi8GaVK784n2IGVWV Qe23kwT0HNIP87yrLkvHFn41fPrnR1tjnqDv44FewI+KuWFylqLEcAWYwuL0LWdU zNuTJ1shoGEt/ybllB6S9/mG3Vq/b2OMAG8teHvVoW69ki1to8RIaiYVLYq4Mzad bEG5+Qtq1bxfhDSijB8Bwifdd3P8VpLZ2NLkaaOpNasGfIDP1LlpMlhDqlYQiUbL 0fclJq+3F9MnCOxv3M6Md5R8poyywsq4kRThNOz4OK1fVPtkfT4oLFpOLKcecVcH YGy6gneF+zERmp2KOduvsCCdzxyIFaEvW8e56YvSwcCoWCA6xsEliZNj3/C9uA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiuoQBI38YyQXD9Mqx4Ld ODk8UTwj1v+KuLgWJoXkMRkcuxvxrlTdJdAiGeRu7D1S4XQlgO9HCI6VnzKEv7lF 1OfLczCRHyEEt9ljp7zKxrdIJox+bQVGFerWqHKegEK6DV+MChq8xf9dZECD1USM qo3QOGQ3YT2tBQodXL6jDHef4xpEXWO1dEj7eP5ESGpMRm3rS0jaom0DkLgzHCNO Dk1NzpN5Kcp4VMxqU3/B1DMNXtAL8mP/rQGaUfU6o87v6rSaeq02TxhsNSvEQzuy 2//QhpL8BvV/KacaLnJVCGcO7uSZ4Lt8xxxdycgeisow3LAZ3MOUA73xJ0S6U4P9 GQIDAQAB -----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 250193286003604678913802060729238670593 . . . . . . . . [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 2023-09-24 07:57:07 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-23 07:57:06 +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 'firlana.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 17536306640118628399588199073397232288650863065192501299900904754513486222659829384240180425127426466446457375727188050703969614688241597492160045718322453186679449553834540094827657647991732708552274222299866007684298868955358245887916136278531454860143035069883479123507168010304336888887970511498536953383122808956526918031883995884795098238546250965070851605497444179852376585437475633938872529115311084524967891662773976950817625065692712973690059451396021397328621363071076479358115260855796080592701802408245673133002684130927759940915792873540409672440909641218255067146493835406320248316407894954734736637209 . . . . . . . . . . . . . . . . . . . . [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) 463a82e6fb5e8bfd0f4fb9737131e0c325765dbf . . . . . . . . . . . . . . . . [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/UmCWgTtMbD0' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 (30 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'firlana.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.firlana.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/eplfRroXWPA.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018ac6682372000004030047304502210091b883bcb2646788dd7699626d41eb4d7269746a5658f082c697807d5a7ccfde02204675f45220096d5512437b33bd35b42f90b4a95a9225d4b44295e0b2d2e336fe0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ac6682381000004030047304502210098cb2e8dccf6d151ad7a82de760539915d7d8c56604c820af8e2f62da058c879022062c9a37a19b3f0cf95eee06ea707f9e69a524cf4795c74b3b155f81a27ba23b8 . . . . [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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