DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

siam-ns.net · 70.40.220.70:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=autoconfig.siam-ns.net
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-10-01T02:51:56+00:00
Expires
2026-12-30T02:51:55+00:00
Days remaining
49
Serial (hex)
06EFA354417D655FE61174E7CB61E45ABB2F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:autoconfig.siam-ns.net, DNS:autodiscover.siam-ns.net, DNS:cpanel.siam-ns.net, DNS:cpcalendars.siam-ns.net, DNS:cpcontacts.siam-ns.net, DNS:mail.siam-ns.net, DNS:siam-ns.net, DNS:webdisk.siam-ns.net, DNS:webmail.siam-ns.net, DNS:www.siam-ns.net

SHA-256 fingerprint

AD:ED:7E:AB:62:C4:02:29:2C:9A:1D:FC:FC:DF:FA:2B:1F:1C:E5:9B:F9:07:DE:84:DA:F9:DD:5C:77:66:32:44
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
65:F0:F4:BA:9B:C0:D8:86:FD:4A:60:32:45:A9:C5:0C:C1:64:E9:B2
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:autoconfig.siam-ns.net, DNS:autodiscover.siam-ns.net, DNS:cpanel.siam-ns.net, DNS:cpcalendars.siam-ns.net, DNS:cpcontacts.siam-ns.net, DNS:mail.siam-ns.net, DNS:siam-ns.net, DNS:webdisk.siam-ns.net, DNS:webmail.siam-ns.net, DNS:www.siam-ns.net
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/48.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Oct 1 03:50:26.706 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0B:E9:BD:AC:42:DC:5D:3A:2E:F0:96:27: AC:98:C3:B7:4E:23:AC:D3:36:8C:41:EE:A5:62:99:C1: E2:BD:EE:F5:02:20:0D:32:62:4C:78:DE:48:94:47:E6: 79:07:95:75:53:5F:B0:08:04:5E:E5:7D:01:F1:B3:7E: CB:2E:52:0F:C5:35 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0: D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F Timestamp : Oct 1 03:50:26.936 2026 GMT Extensions: 00:00:05:00:38:CE:88:AC Signature : ecdsa-with-SHA256 30:44:02:20:5C:A3:D8:3E:BB:55:92:99:FF:AD:1E:49: 35:29:3A:B7:B0:E8:8E:E6:35:11:C6:32:75:B2:A8:46: F1:78:F0:AE:02:20:5A:8F:0C:9C:8E:3C:52:8E:F0:BA: 89:BA:A4:E8:43:BC:06:18:56:FA:AA:26:E8:94:87:1E: 0F:62:3C:79:2F:C3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-11T00:19:01+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
661
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2122
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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