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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criuleni.md

Issuer: CN=YR2, O=Let's Encrypt, C=US

Not Before: 2026-07-28T11:39:44Z

Not After: 2026-10-26T11:39:43Z

Signature Algorithm: sha256, rsa

Public Key: RSA 2048 bits

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Fingerprint C2:E5:A9:9A:AE:3D:8A:9F:E2:AE:B3:3F:47:BE:FB:3A:06:25:3B:E7
Issuer CN=YR2, O=Let's Encrypt, C=US
Not After 2026-10-26T11:39:43Z
Not Before 2026-07-28T11:39:44Z
Serial number 580837B2D237B3529740A3150852173D1C0
Signature Algorithm sha256, rsa
Subject CN=criuleni.md
Extensions:
authorityInfoAccess CA Issuers - URI:http://yr2.i.lencr.org/
authorityKeyIdentifier keyid:40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
basicConstraints CA:FALSE
certificatePolicies Policy: 2.23.140.1.2.1
crlDistributionPoints Full Name: URI:http://yr2.c.lencr.org/65.crl
ctlSignedCertificateTimestamp BIH5APcAdgDCMX5XRRmjRe5_ON6ykEHrx8IhWiK_f9W1rXaa2Q5SzQAAAZ-ou5jiAAAEAwBHMEUCIQCSxBYuYBmZtYdLC4U3Sk9n2kIlWFh0nmNz8l8ECUWOjQIgWjH4YcFqrbwpKUO5oXhx5cgNc9UQa57QMSFlfhB4CeYAfQAai51rD_6_gbR5OcbSMQqG1tEC1PBG4hgsneNfXiYl7wAAAZ-ou5lCAAgAAAUALqEAtAQDAEYwRAIgYRJiYaYbGoWr4C6d2BtSAtmQMrxicOWGIUafAXU18dgCICq_Zqxu7A6kq7YbuwCHWmwZxWDTkLqhqvCUc9EdH1eP
extendedKeyUsage TLS Web server authentication
keyUsage Digital Signature, Key Encipherment
subjectAltName DNS:criuleni.md, DNS:*.criuleni.md
subjectKeyIdentifier 05:9F:5C:81:78:06:B4:45:1A:3B:18:FB:83:9E:55:EC:F4:D5:F0:D8

Certificate Chain

Root YR

Issuer: CN=Root YR, O=ISRG, C=US

Not Before: 2025-09-03T00:00:00Z

Not After: 2028-09-02T23:59:59Z

Signature Algorithm: sha256, rsa

Show details
Fingerprint 2D:74:D6:DF:D9:6E:EA:55:AD:7B:AA:FA:0D:3C:65:52:B2:DA:DC:37
Issuer CN=Root YR, O=ISRG, C=US
Not After 2028-09-02T23:59:59Z
Not Before 2025-09-03T00:00:00Z
Serial number 4EBD24947E24D394802D84A52FD5B319
Signature Algorithm sha256, rsa
Subject CN=YR2, O=Let's Encrypt, C=US
Extensions:
authorityInfoAccess CA Issuers - URI:http://yr.i.lencr.org/
authorityKeyIdentifier keyid:DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
basicConstraints CA:TRUE
certificatePolicies Policy: 2.23.140.1.2.1
crlDistributionPoints Full Name: URI:http://yr.c.lencr.org/
extendedKeyUsage TLS Web server authentication
keyUsage Digital Signature, Key Cert Sign, C R L Sign
subjectKeyIdentifier 40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C

ISRG Root X1

Issuer: CN=ISRG Root X1, O=Internet Security Research Group, C=US

Not Before: 2026-05-13T00:00:00Z

Not After: 2032-09-02T23:59:59Z

Signature Algorithm: sha256, rsa

Show details
Fingerprint AB:9D:02:63:24:4D:D0:32:6E:B6:70:15:70:5A:66:7E:79:CF:E9:98
Issuer CN=ISRG Root X1, O=Internet Security Research Group, C=US
Not After 2032-09-02T23:59:59Z
Not Before 2026-05-13T00:00:00Z
Serial number F24B6D17F9D9AD7CB1C9FEA78782699F
Signature Algorithm sha256, rsa
Subject CN=Root YR, O=ISRG, 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: 2.23.140.1.2.1
crlDistributionPoints Full Name: URI:http://x1.c.lencr.org/
extendedKeyUsage TLS Web server authentication
keyUsage Key Cert Sign, C R L Sign
subjectKeyIdentifier DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94

ISRG Root X1

Issuer: CN=ISRG Root X1, O=Internet Security Research Group, C=US

Not Before: 2026-05-13T00:00:00Z

Not After: 2032-09-02T23:59:59Z

Signature Algorithm: sha256, rsa

Show details
Fingerprint AB:9D:02:63:24:4D:D0:32:6E:B6:70:15:70:5A:66:7E:79:CF:E9:98
Issuer CN=ISRG Root X1, O=Internet Security Research Group, C=US
Not After 2032-09-02T23:59:59Z
Not Before 2026-05-13T00:00:00Z
Serial number F24B6D17F9D9AD7CB1C9FEA78782699F
Signature Algorithm sha256, rsa
Subject CN=Root YR, O=ISRG, 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: 2.23.140.1.2.1
crlDistributionPoints Full Name: URI:http://x1.c.lencr.org/
extendedKeyUsage TLS Web server authentication
keyUsage Key Cert Sign, C R L Sign
subjectKeyIdentifier DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94

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.