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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donduseni.md

Issuer: CN=YR1, O=Let's Encrypt, C=US

Not Before: 2026-07-18T23:57:53Z

Not After: 2026-10-16T23:57:52Z

Signature Algorithm: sha256, rsa

Public Key: RSA 2048 bits

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Fingerprint 91:25:CC:47:F6:6A:8A:15:2B:AE:12:D5:C4:6A:6E:C3:AD:42:AC:8A
Issuer CN=YR1, O=Let's Encrypt, C=US
Not After 2026-10-16T23:57:52Z
Not Before 2026-07-18T23:57:53Z
Serial number 59C89BEB2AC87EEFE8928545EF36A3F83AE
Signature Algorithm sha256, rsa
Subject CN=*.donduseni.md
Extensions:
authorityInfoAccess CA Issuers - URI:http://yr1.i.lencr.org/
authorityKeyIdentifier keyid:1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
basicConstraints CA:FALSE
certificatePolicies Policy: 2.23.140.1.2.1
crlDistributionPoints Full Name: URI:http://yr1.c.lencr.org/47.crl
ctlSignedCertificateTimestamp BIH7APkAdgDIo8R_x7OtuTVrAT9qehJt4zpOQ6XGRvmXrTl1mR3PmgAAAZ93381BAAAEAwBHMEUCIBmSWaiYDgesTwV93YjRn5zVnlXulIovyq4mIfWVT9dDAiEA5SGSFJhRj32Kc9kXWRNUOyA9yczeQmLYbhRpsCfh67kAfwBGr4Y9Oz7ln6V33qgkXTaw2e0ioiP0YXdBIpRS7pVQXwAAAZ93381cAAgAAAUADYyiDgQDAEgwRgIhAPcGBMwc7cH21MQlFJowWyUFrg9qqssxU3hlrckEkOFwAiEA246WXrNZYZ6z6-hEZJK5AhhxhDr-6id021Ih4mBmE7I=
extendedKeyUsage TLS Web server authentication
keyUsage Digital Signature, Key Encipherment
subjectAltName DNS:donduseni.md, DNS:*.donduseni.md
subjectKeyIdentifier B6:07:68:CB:6C:B6:58:A6:DE:7B:BE:FF:92:6C:A8:4D:E5:0D:91:E4

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 CB:CF:D0:9C:E3:CD:22:D9:9D:94:E5:8F:92:E9:89:8F:BE:E5:1A:5E
Issuer CN=Root YR, O=ISRG, C=US
Not After 2028-09-02T23:59:59Z
Not Before 2025-09-03T00:00:00Z
Serial number A20253F15F2691C05DC1CE13B9BCCA4E
Signature Algorithm sha256, rsa
Subject CN=YR1, 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 1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB

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.