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

ns48.host.am · 194.34.232.238:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
CN=ext48.host.am
Issuer
C=US O=Let's Encrypt CN=R13
Valid from
2026-02-21T13:13:17+00:00
Expires
2026-05-22T13:13:16+00:00
Days remaining
-134
Serial (hex)
0639123E99FC8A0794561012865AEB7A1901
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:ext48.host.am

SHA-256 fingerprint

66:41:FD:E4:65:41:40:23:82:64:AC:64:62:B8:50:F1:45:AA:BA:4D:54:4B:72:5F:EC:F9:FC:8A:04:E2:FA:DB
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
58:13:E4:9A:FB:C6:3C:E6:4D:AE:CC:8C:85:94:DF:05:72:D7:EB:D1
authorityKeyIdentifier
E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33
authorityInfoAccess
CA Issuers - URI:http://r13.i.lencr.org/
subjectAltName
DNS:ext48.host.am
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://r13.c.lencr.org/2.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 16:83:2D:AB:F0:A9:25:0F:0F:F0:3A:A5:45:FF:C8:BF: C8:23:D0:87:4B:F6:04:29:27:F8:E7:1F:33:13:F5:FA Timestamp : Feb 21 14:11:48.096 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:62:4C:ED:8F:AE:71:23:17:71:28:58:47: 27:23:C3:6C:86:C2:DC:67:8F:42:E3:4F:87:C8:30:47: E5:61:C3:5A:02:20:1B:8A:64:E9:FC:51:1B:3F:A4:53: 8E:7A:E4:C1:1E:45:86:83:F4:4F:43:A4:9C:3D:E7:F9: A2:B1:ED:66:B7:D6 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : E3:23:8D:F2:8D:A2:88:E0:AA:E0:AC:F0:FA:90:C9:85: F0:B6:BF:F5:D2:A5:27:B0:01:FC:1C:44:58:C4:B6:E8 Timestamp : Feb 21 14:11:48.523 2026 GMT Extensions: 00:00:05:00:33:49:DE:05 Signature : ecdsa-with-SHA256 30:45:02:20:13:A6:9C:47:48:CB:F5:39:61:4D:3F:AC: 93:57:49:AB:51:97:80:C5:4F:A9:28:18:98:DA:08:CF: 38:92:87:6E:02:21:00:E5:99:90:3A:FF:36:C8:37:DA: 7E:EF:0F:13:C8:73:D6:A0:86:A4:94:4A:33:C1:8E:CE: FE:33:87:E3:14:37:65
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-03T01:37:54+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=R13
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2024-03-13T00:00:00+00:00
Expires
2027-03-12T23:59:59+00:00
Days remaining
160
Serial (hex)
5A00F212D8D4B480F3924157EA298305
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

D3:B1:28:21:6A:84:3F:8E:F1:32:15:01:F5:DF:52:A5:DF:52:93:9E:E2:C1:92:97:71:2C:D3:DE:4D:41:93:54
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33
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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