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.


Everything is ok

criuleni.md

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

Not Before: 2026-05-29T09:39:52Z

Not After: 2026-08-27T09:39:51Z

Signature Algorithm: sha256, rsa


Show details
Fingerprint 11:7E:1B:4A:F1:CF:C9:F5:8F:07:AF:81:00:9C:89:5D:AB:E8:E8:2F
Issuer CN=YR2, O=Let's Encrypt, C=US
Not After 2026-08-27T09:39:51Z
Not Before 2026-05-29T09:39:52Z
Serial number 66B1BABF11E09F1348DC98ECDEC8D2584A4
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/37.crl
ctlSignedCertificateTimestamp BIH7APkAdgDYCVU7lE96_8gWGW-UT4WrsPj8XodVJg8V0S5yu0VLFAAAAZ5zUExhAAAEAwBHMEUCIQCrR8infmW1S5qcnTGEahDbPyAqb_bvYCUCWBIvyj38LgIgR7A-FxBWvXQrINDk6zO-lvRjtgRYqhzxg2LooVViQxwAfwAai51rD_6_gbR5OcbSMQqG1tEC1PBG4hgsneNfXiYl7wAAAZ5zUE_UAAgAAAUAGC-J0QQDAEgwRgIhAM3rixVp3ecAGrXU_Ud01rXnN1iti6VHkykZHCrqt3BFAiEA_qZCzR6NwCx5gclV-5CeAYV-NR9kR80NewGYg4vpEvQ=
extendedKeyUsage TLS Web server authentication
keyUsage Digital Signature, Key Encipherment
subjectAltName DNS:criuleni.md, DNS:*.criuleni.md
subjectKeyIdentifier 80:72:B9:17:5D:96:AE:77:63:EA:35:EF:2E:CB:62:13:F8:C4:C2:18

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


Valid Certificate and Certificate Chain

This certificate is valid and has a valid certificate chain, meanubg the certificate has been issued by a trusted Certificate Authority (CA) and is considered reliable. SSL certificates are used to secure websites, and their validity is crucial for data encryption and user trust. The certificate chain consists of the server's certificate, intermediate certificates, and a root CA certificate. Browsers validate this chain to ensure that the website's identity has been verified and that data transmission is secure. In essence, a valid SSL certificate with a valid certificate chain ensures encrypted and trustworthy communication between users and the website.