SSL
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SSL/TLS certificates are digital certificates used to secure communication between web browsers and servers on the World Wide Web. They enable encrypted connections, protecting sensitive data during transmission. These certificates verify the authenticity of websites and establish trust, contributing to web security and search engine rankings.
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estudii.igc.gov.md
Issuer: CN=R3, O=Let's Encrypt, C=US
Not Before:
2024-02-22T15:18:55Z
Not After:
2024-05-22T15:18:54Z
Signature Algorithm:
sha256, rsa
Show details
Fingerprint
BA:1C:1F:93:68:DD:31:9F:67:97:C4:EA:86:3B:3F:9A:23:9F:7E:F0
Issuer
CN=R3, O=Let's Encrypt, C=US
Not After
2024-05-22T15:18:54Z
Not Before
2024-02-22T15:18:55Z
Serial number
4B5355210F2FE23FEA1BB8DB236D00DE2E1
Signature Algorithm
sha256, rsa
Subject
CN=studii.igc.gov.md
Extensions:
authorityInfoAccess
CA Issuers - URI:http://r3.i.lencr.org/
OCSP - URI:http://r3.o.lencr.org
authorityKeyIdentifier
keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
basicConstraints
CA:FALSE
certificatePolicies
Policy: 2.23.140.1.2.1
ctlSignedCertificateTimestamp
BIHxAO8AdQDuzdBk1dsazsVct520zROiModGfLzs3sNRSFlGcR-1mwAAAY3RnOHiAAAEAwBGMEQCIDE3fpsUaaPK7Fe3snb4yu_znKdk17lLQAJlAj3-DOvsAiBfTPCE9oiHrNUwMRVUBJtzpInFgcUwjqz5xJWryO3RvgB2AEiw42vapkc0D-VqAvqdMOscUgHLVt0sgdm7v6s52IRzAAABjdGc470AAAQDAEcwRQIhAJM1SkoAAxsQNl6Mbt_8nw_y9AGWalCBmmo0Nlr6XhVIAiB1Pw6mFVCg0A5J8X692Muq00RKhyp6PYl3GK20Qqa85Q==
extendedKeyUsage
TLS Web server authentication, TLS Web client authentication
keyUsage
Digital Signature, Key Encipherment
subjectAltName
DNS:studii.igc.gov.md
subjectKeyIdentifier
B9:C6:9F:CB:37:84:BD:5E:B1:C0:F9:BD:03:51:57:34:0C:B4:B6:0C
Certificate Chain
R3
Issuer: CN=R3, O=Let's Encrypt, C=US
Not Before:
2024-02-22T15:18:55Z
Not After:
2024-05-22T15:18:54Z
Signature Algorithm:
sha256, rsa
Show details
Fingerprint
BA:1C:1F:93:68:DD:31:9F:67:97:C4:EA:86:3B:3F:9A:23:9F:7E:F0
Issuer
CN=R3, O=Let's Encrypt, C=US
Not After
2024-05-22T15:18:54Z
Not Before
2024-02-22T15:18:55Z
Serial number
4B5355210F2FE23FEA1BB8DB236D00DE2E1
Signature Algorithm
sha256, rsa
Subject
CN=studii.igc.gov.md
Extensions:
authorityInfoAccess
CA Issuers - URI:http://r3.i.lencr.org/
OCSP - URI:http://r3.o.lencr.org
authorityKeyIdentifier
keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
basicConstraints
CA:FALSE
certificatePolicies
Policy: 2.23.140.1.2.1
ctlSignedCertificateTimestamp
BIHxAO8AdQDuzdBk1dsazsVct520zROiModGfLzs3sNRSFlGcR-1mwAAAY3RnOHiAAAEAwBGMEQCIDE3fpsUaaPK7Fe3snb4yu_znKdk17lLQAJlAj3-DOvsAiBfTPCE9oiHrNUwMRVUBJtzpInFgcUwjqz5xJWryO3RvgB2AEiw42vapkc0D-VqAvqdMOscUgHLVt0sgdm7v6s52IRzAAABjdGc470AAAQDAEcwRQIhAJM1SkoAAxsQNl6Mbt_8nw_y9AGWalCBmmo0Nlr6XhVIAiB1Pw6mFVCg0A5J8X692Muq00RKhyp6PYl3GK20Qqa85Q==
extendedKeyUsage
TLS Web server authentication, TLS Web client authentication
keyUsage
Digital Signature, Key Encipherment
subjectAltName
DNS:studii.igc.gov.md
subjectKeyIdentifier
B9:C6:9F:CB:37:84:BD:5E:B1:C0:F9:BD:03:51:57:34:0C:B4:B6:0C
ISRG Root X1
Issuer: CN=ISRG Root X1, O=Internet Security Research Group, C=US
Not Before:
2020-09-04T00:00:00Z
Not After:
2025-09-15T16:00:00Z
Signature Algorithm:
sha256, rsa
Show details
Fingerprint
A0:53:37:5B:FE:84:E8:B7:48:78:2C:7C:EE:15:82:7A:6A:F5:A4:05
Issuer
CN=ISRG Root X1, O=Internet Security Research Group, C=US
Not After
2025-09-15T16:00:00Z
Not Before
2020-09-04T00:00:00Z
Serial number
912B084ACF0C18A753F6D62E25A75F5A
Signature Algorithm
sha256, rsa
Subject
CN=R3, O=Let's Encrypt, C=US
Extensions:
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
authorityKeyIdentifier
keyid:79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
basicConstraints
CA:TRUE
certificatePolicies
Policy: 1.3.6.1.4.1.44947.1.1.1
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name:
URI:http://x1.c.lencr.org/
extendedKeyUsage
TLS Web client authentication, TLS Web server authentication
keyUsage
Digital Signature, Key Cert Sign, C R L Sign
subjectKeyIdentifier
14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
This certificate is not valid
This certificate and its chain is not valid, it signifies potential security and trust issues. An invalid SSL certificate could mean it has expired, been revoked, or not issued by a trusted Certificate Authority (CA). Additionally, an invalid certificate chain may indicate missing or misconfigured intermediate certificates, making it impossible to establish a secure connection to the website. In such cases, web browsers will typically display warnings to users, cautioning them about potential security risks, and it's advisable to avoid interacting with such websites to protect sensitive data from potential threats.
SSL/TLS certificates are digital certificates used to secure communication between web browsers and servers on the World Wide Web. They enable encrypted connections, protecting sensitive data during transmission. These certificates verify the authenticity of websites and establish trust, contributing to web security and search engine rankings.
estudii.igc.gov.md
Issuer: CN=R3, O=Let's Encrypt, C=USNot Before: 2024-02-22T15:18:55Z
Not After: 2024-05-22T15:18:54Z
Signature Algorithm: sha256, rsa
Show details
| Fingerprint | BA:1C:1F:93:68:DD:31:9F:67:97:C4:EA:86:3B:3F:9A:23:9F:7E:F0 | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Issuer | CN=R3, O=Let's Encrypt, C=US | |||||||||||||||||
| Not After | 2024-05-22T15:18:54Z | |||||||||||||||||
| Not Before | 2024-02-22T15:18:55Z | |||||||||||||||||
| Serial number | 4B5355210F2FE23FEA1BB8DB236D00DE2E1 | |||||||||||||||||
| Signature Algorithm | sha256, rsa | |||||||||||||||||
| Subject | CN=studii.igc.gov.md | |||||||||||||||||
| Extensions: | |
|---|---|
| authorityInfoAccess | CA Issuers - URI:http://r3.i.lencr.org/ OCSP - URI:http://r3.o.lencr.org |
| authorityKeyIdentifier | keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6 |
| basicConstraints | CA:FALSE |
| certificatePolicies | Policy: 2.23.140.1.2.1 |
| ctlSignedCertificateTimestamp | BIHxAO8AdQDuzdBk1dsazsVct520zROiModGfLzs3sNRSFlGcR-1mwAAAY3RnOHiAAAEAwBGMEQCIDE3fpsUaaPK7Fe3snb4yu_znKdk17lLQAJlAj3-DOvsAiBfTPCE9oiHrNUwMRVUBJtzpInFgcUwjqz5xJWryO3RvgB2AEiw42vapkc0D-VqAvqdMOscUgHLVt0sgdm7v6s52IRzAAABjdGc470AAAQDAEcwRQIhAJM1SkoAAxsQNl6Mbt_8nw_y9AGWalCBmmo0Nlr6XhVIAiB1Pw6mFVCg0A5J8X692Muq00RKhyp6PYl3GK20Qqa85Q== |
| extendedKeyUsage | TLS Web server authentication, TLS Web client authentication |
| keyUsage | Digital Signature, Key Encipherment |
| subjectAltName | DNS:studii.igc.gov.md |
| subjectKeyIdentifier | B9:C6:9F:CB:37:84:BD:5E:B1:C0:F9:BD:03:51:57:34:0C:B4:B6:0C |
Certificate Chain
R3
Issuer: CN=R3, O=Let's Encrypt, C=USNot Before: 2024-02-22T15:18:55Z
Not After: 2024-05-22T15:18:54Z
Signature Algorithm: sha256, rsa
Show details
| Fingerprint | BA:1C:1F:93:68:DD:31:9F:67:97:C4:EA:86:3B:3F:9A:23:9F:7E:F0 | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Issuer | CN=R3, O=Let's Encrypt, C=US | |||||||||||||||||
| Not After | 2024-05-22T15:18:54Z | |||||||||||||||||
| Not Before | 2024-02-22T15:18:55Z | |||||||||||||||||
| Serial number | 4B5355210F2FE23FEA1BB8DB236D00DE2E1 | |||||||||||||||||
| Signature Algorithm | sha256, rsa | |||||||||||||||||
| Subject | CN=studii.igc.gov.md | |||||||||||||||||
| Extensions: | |
|---|---|
| authorityInfoAccess | CA Issuers - URI:http://r3.i.lencr.org/ OCSP - URI:http://r3.o.lencr.org |
| authorityKeyIdentifier | keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6 |
| basicConstraints | CA:FALSE |
| certificatePolicies | Policy: 2.23.140.1.2.1 |
| ctlSignedCertificateTimestamp | BIHxAO8AdQDuzdBk1dsazsVct520zROiModGfLzs3sNRSFlGcR-1mwAAAY3RnOHiAAAEAwBGMEQCIDE3fpsUaaPK7Fe3snb4yu_znKdk17lLQAJlAj3-DOvsAiBfTPCE9oiHrNUwMRVUBJtzpInFgcUwjqz5xJWryO3RvgB2AEiw42vapkc0D-VqAvqdMOscUgHLVt0sgdm7v6s52IRzAAABjdGc470AAAQDAEcwRQIhAJM1SkoAAxsQNl6Mbt_8nw_y9AGWalCBmmo0Nlr6XhVIAiB1Pw6mFVCg0A5J8X692Muq00RKhyp6PYl3GK20Qqa85Q== |
| extendedKeyUsage | TLS Web server authentication, TLS Web client authentication |
| keyUsage | Digital Signature, Key Encipherment |
| subjectAltName | DNS:studii.igc.gov.md |
| subjectKeyIdentifier | B9:C6:9F:CB:37:84:BD:5E:B1:C0:F9:BD:03:51:57:34:0C:B4:B6:0C |
ISRG Root X1
Issuer: CN=ISRG Root X1, O=Internet Security Research Group, C=USNot Before: 2020-09-04T00:00:00Z
Not After: 2025-09-15T16:00:00Z
Signature Algorithm: sha256, rsa
Show details
| Fingerprint | A0:53:37:5B:FE:84:E8:B7:48:78:2C:7C:EE:15:82:7A:6A:F5:A4:05 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Issuer | CN=ISRG Root X1, O=Internet Security Research Group, C=US | |||||||||||||||
| Not After | 2025-09-15T16:00:00Z | |||||||||||||||
| Not Before | 2020-09-04T00:00:00Z | |||||||||||||||
| Serial number | 912B084ACF0C18A753F6D62E25A75F5A | |||||||||||||||
| Signature Algorithm | sha256, rsa | |||||||||||||||
| Subject | CN=R3, O=Let's Encrypt, C=US | |||||||||||||||
| Extensions: | |
|---|---|
| authorityInfoAccess | CA Issuers - URI:http://x1.i.lencr.org/ |
| authorityKeyIdentifier | keyid:79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E |
| basicConstraints | CA:TRUE |
| certificatePolicies | Policy: 1.3.6.1.4.1.44947.1.1.1 Policy: 2.23.140.1.2.1 |
| crlDistributionPoints | Full Name: URI:http://x1.c.lencr.org/ |
| extendedKeyUsage | TLS Web client authentication, TLS Web server authentication |
| keyUsage | Digital Signature, Key Cert Sign, C R L Sign |
| subjectKeyIdentifier | 14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6 |
This certificate is not valid
This certificate and its chain is not valid, it signifies potential security and trust issues. An invalid SSL certificate could mean it has expired, been revoked, or not issued by a trusted Certificate Authority (CA). Additionally, an invalid certificate chain may indicate missing or misconfigured intermediate certificates, making it impossible to establish a secure connection to the website. In such cases, web browsers will typically display warnings to users, cautioning them about potential security risks, and it's advisable to avoid interacting with such websites to protect sensitive data from potential threats.
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