www.lk.svokna72.ru
Issued by AlphaSSL CA - SHA256 - G2
About this certificate
This digital certificate with serial number 75:3d:74:f9:0c:4a:07:06:f1:c4:ff:ea was issued on by GlobalSign nv-sa.
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)
- Apple recommends that certificates be issued with a maximum validity of 397 days. TLS server certificates issued on or after September 1, 2020 00:00 GMT/UTC should not have a validity period greater than 397 days (https://support.apple.com/en-us/HT211025)
Certificate Subject
CN=www.lk.svokna72.ru
GlobalSign nv-sa
Organization:
GlobalSign nv-sa
Country:
BE
This certificate has expire since
Certificate Details
Serial Number (hex): 75:3d:74:f9:0c:4a:07:06:f1:c4:ff:eaSerial Number (int): 36284043012730680656118743018
Serial Number lenght: 95 bits, 12 octets
SubjectKeyId: 24:43:34:5a:2d:d3:3f:75:d1:e3:0b:49:a8:22:64:92:d4:58:ea:92
AuthorityKeyId: f5:cd:d5:3c:08:50:f9:6a:4f:3a:b7:97:da:56:83:e6:69:d2:68:f7
Fingerprint (sha1): aa:16:33:5e:36:f6:94:ac:05:4b:8c:9b:3a:40:45:ab:95:4b:ba:00
Fingerprint (sha256): ec:be:55:d6:b5:2d:ec:d0:02:82:fb:9b:bc:79:65:60:5e:39:74:a4:e0:c2:45:a9:50:75:7b:e4:b5:6e:87:77
Issuing Certificate URL: http://secure2.alphassl.com/cacert/gsalphasha2g2r1.crt
Revocation information
OCSP Server: http://ocsp2.globalsign.com/gsalphasha2g2CRL Distribution Point: http://crl2.alphassl.com/gs/gsalphasha2g2.crl
Check the revocation status for certificate www.lk.svokna72.ru
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.lk.svokna72.ru
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
10 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.lk.svokna72.ru
lk.svokna72.ru
lk.svokna72.ru
Other certificates including the domain name svokna72.ru
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.lk.svokna72.ru in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF2DCCBMCgAwIBAgIMdT10+QxKBwbxxP/qMA0GCSqGSIb3DQEBCwUAMEwxCzAJ BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSIwIAYDVQQDExlB bHBoYVNTTCBDQSAtIFNIQTI1NiAtIEcyMB4XDTIxMTEzMDEyMjMxM1oXDTIzMDEw MTEyMjMxM1owHTEbMBkGA1UEAxMSd3d3LmxrLnN2b2tuYTcyLnJ1MIICIjANBgkq hkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuvQmO2gT8nXm0k8QiZiZIZhQIMvfG6ku LVSVaTxdEbzAHoUryWgiAxkb9ApzMZwv5m7nETJp3d3gLcUIAtUKWr8sVKCVizey kOfixnDdBL1K+q9vHQ7fhQyY/WH2YwUF7kfK0wOOQkw1frRY1XPnNeuB0qKARcvu 5CILU+60pyfoKyQarqz9I+Cwu23sCEzOT7lUXhnVmC7EkbVWJ0006T4Rs2RhhwVr qi6C9oVGCytYGz1GmJ9Y3yDN08Ea5BNgH/OOBsTgOS9EeMPkoaEDb10b9yKv+5XE xNUSAVZ0Mx37gJyP9Ar3ewdvWhSOWb1hMsY5Cz2rk9upSJRVzC4HnlFL6l1/PEDC zja9xBLKZ+CG2yKzeTwIicd/2NJGVgjPrN3aAd7E+vZ/PWiNZXo8g4xIdE09kaLH j6AVwLdcgG18Xfh2kHo5GzIbblmQvY9c3Samclruj/SHiAJIOLte3IjT3dbAb+L1 pOZm7IXEOOW4RpI+vo53NoIor40yCViCN+2CvS6LeFxV5ntB4zbHq0W0yFWTiRVE 9ZoVQ4aUdDFOhNVvEwYDmSQkWspBjKaYsuchv4qitYgQkJAcwdUZmsPRBaqdbeuE ziTiSImDMa6wa6Ahz0MQazpj8F/gxAkeFEPEko9sk1wNey7XVrZDRChTu0Zrou5u upEYNx25Ho0CAwEAAaOCAecwggHjMA4GA1UdDwEB/wQEAwIFoDCBiQYIKwYBBQUH AQEEfTB7MEIGCCsGAQUFBzAChjZodHRwOi8vc2VjdXJlMi5hbHBoYXNzbC5jb20v Y2FjZXJ0L2dzYWxwaGFzaGEyZzJyMS5jcnQwNQYIKwYBBQUHMAGGKWh0dHA6Ly9v Y3NwMi5nbG9iYWxzaWduLmNvbS9nc2FscGhhc2hhMmcyMFcGA1UdIARQME4wQgYK KwYBBAGgMgEKCjA0MDIGCCsGAQUFBwIBFiZodHRwczovL3d3dy5nbG9iYWxzaWdu LmNvbS9yZXBvc2l0b3J5LzAIBgZngQwBAgEwCQYDVR0TBAIwADA+BgNVHR8ENzA1 MDOgMaAvhi1odHRwOi8vY3JsMi5hbHBoYXNzbC5jb20vZ3MvZ3NhbHBoYXNoYTJn Mi5jcmwwLQYDVR0RBCYwJIISd3d3LmxrLnN2b2tuYTcyLnJ1gg5say5zdm9rbmE3 Mi5ydTAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwHwYDVR0jBBgwFoAU 9c3VPAhQ+WpPOreX2laD5mnSaPcwHQYDVR0OBBYEFCRDNFot0z910eMLSagiZJLU WOqSMBMGCisGAQQB1nkCBAMBAf8EAgUAMA0GCSqGSIb3DQEBCwUAA4IBAQBKCglN ugNbovq/bAIJPxPppGPRytbnAm8PyY/H2yK3thu6dR5TSOQdsyLL7xX8dxiHS45M nqL22lRnmiL2ixalVQE+LkTz4cuzwfpRDVAONiUAxX706dfjVsOCZL0MKje22hDl f2NsxoAt+DLCfkmvfYTW74jKs4aOPtCNTrhJE11mDgKnhz8b7nw/Mrku5MO7TrO2 DpaS1LJJghn23OjyQBGr3DaeC/C/HTKCqecZ8PeY2HCnkmlCMi1E6WZSfEWvSkYJ Pz1RVGijRFtPSy0RTiJ/gJEMSdKSkf1HCId2lFUFzhXm8KRKudpEJ006GaP5Ztth 1Yl/qhsdskA/HHGs -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuvQmO2gT8nXm0k8QiZiZ IZhQIMvfG6kuLVSVaTxdEbzAHoUryWgiAxkb9ApzMZwv5m7nETJp3d3gLcUIAtUK Wr8sVKCVizeykOfixnDdBL1K+q9vHQ7fhQyY/WH2YwUF7kfK0wOOQkw1frRY1XPn NeuB0qKARcvu5CILU+60pyfoKyQarqz9I+Cwu23sCEzOT7lUXhnVmC7EkbVWJ000 6T4Rs2RhhwVrqi6C9oVGCytYGz1GmJ9Y3yDN08Ea5BNgH/OOBsTgOS9EeMPkoaED b10b9yKv+5XExNUSAVZ0Mx37gJyP9Ar3ewdvWhSOWb1hMsY5Cz2rk9upSJRVzC4H nlFL6l1/PEDCzja9xBLKZ+CG2yKzeTwIicd/2NJGVgjPrN3aAd7E+vZ/PWiNZXo8 g4xIdE09kaLHj6AVwLdcgG18Xfh2kHo5GzIbblmQvY9c3Samclruj/SHiAJIOLte 3IjT3dbAb+L1pOZm7IXEOOW4RpI+vo53NoIor40yCViCN+2CvS6LeFxV5ntB4zbH q0W0yFWTiRVE9ZoVQ4aUdDFOhNVvEwYDmSQkWspBjKaYsuchv4qitYgQkJAcwdUZ msPRBaqdbeuEziTiSImDMa6wa6Ahz0MQazpj8F/gxAkeFEPEko9sk1wNey7XVrZD RChTu0Zrou5uupEYNx25Ho0CAwEAAQ== -----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 36284043012730680656118743018 . . . . . . . . [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 'BE' . . . . . . . . . . . . [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 'GlobalSign nv-sa' . . . . . . . . . . . . [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 'AlphaSSL CA - SHA256 - G2' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-11-30 12:23:13 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-01-01 12:23:13 +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 'www.lk.svokna72.ru' . . . . . . . . [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 762704587365988579287559647817790753376034452795180300798508021855534045251848503214978651728256789632413635051662993124776101802014179326719400107587452844130997305024398893471508870124129999196192145281443700530740832039838273754531815480289103058197748700776392133120139199321178439189753566890307959855075088788791424651759389919114190457195199026417222364629365899463170498426150300036863162552747217038397083146574014539460360974827451112443940431485952312481901017961611480174376808809898256958189020660495599114337068029760191561511577784263480714774217912499624583945846375394148224583007794561216175897788868286093630216873591676022734479502462495977588082171589333241714453320135947591068594035057100627304571177780668710955274066006843774257372525638857602757913426324064916120150872575498727268881610484776837412023223662080919432825806648996516672867733427252748129891700171202483188763452511779154875591011876216703863224628859563808929015216439801819533074510666281487604498299206465898878218376596836561995083156983101782434504519755563883643196061278703784398303540832194461226687819592528398439909299498476724000213229593590961878488269932005541559256923322604923662247901159284068584010126473777662221248030645901 . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (125 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://secure2.alphassl.com/cacert/gsalphasha2g2r1.crt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://ocsp2.globalsign.com/gsalphasha2g2' . . . . . . . . . . . . . . . . [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 (80 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.4146.1.10.10 (Domain Validation Certificates Policy - AlphaSSL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://www.globalsign.com/repository/' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (55 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://crl2.alphassl.com/gs/gsalphasha2g2.crl' . . . . . . . . . . . . . . . . [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 (38 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.lk.svokna72.ru' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lk.svokna72.ru' . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName f5cdd53c0850f96a4f3ab797da5683e669d268f7 . . . . . . . . . . . . . . . . [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) 2443345a2dd33f75d1e30b49a8226492d458ea92 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . [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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