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

isp.net.id · 103.118.184.30:443

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=isp.net.id
Issuer
C=US O=Let's Encrypt CN=R13
Valid from
2025-12-02T03:06:39+00:00
Expires
2026-03-02T03:06:38+00:00
Days remaining
-253
Serial (hex)
06DF4071DA3AE3563333D9849511E8C6D33B
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.isp.net.id, DNS:isp.net.id

SHA-256 fingerprint

A8:0A:C4:FB:C8:7C:7B:1A:D5:99:1E:66:D2:65:09:48:C7:02:32:52:52:94:4A:FB:6D:A6:ED:C0:00:29:E8:63
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
D9:5C:CF:4C:09:F5:A2:A8:78:CF:E3:4F:1E:9D:AA:7C:85:B5:D7:97
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:*.isp.net.id, DNS:isp.net.id
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://r13.c.lencr.org/60.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 19:86:D4:C7:28:AA:6F:FE:BA:03:6F:78:2A:4D:01:91: AA:CE:2D:72:31:0F:AE:CE:5D:70:41:2D:25:4C:C7:D4 Timestamp : Dec 2 04:05:09.268 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4A:15:D9:62:A3:D1:91:B2:A7:70:DA:83: 00:BE:29:5F:4D:36:9D:4F:C3:7E:39:DE:9D:45:BC:C1: 76:2B:FF:DD:02:21:00:B7:35:F7:BB:A0:9D:2A:72:E3: 34:5D:3F:24:CC:65:3B:F1:22:A3:68:A6:29:06:BD:EE: B8:38:E7:9F:EC:1A:0C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 0E:57:94:BC:F3:AE:A9:3E:33:1B:2C:99:07:B3:F7:90: DF:9B:C2:3D:71:32:25:DD:21:A9:25:AC:61:C5:4E:21 Timestamp : Dec 2 04:05:09.266 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E0:81:E4:0A:C1:92:40:D3:C5:3A:C5: CF:79:2C:35:99:32:8D:5D:9C:D8:E0:38:03:13:A2:9C: B0:36:07:4E:47:02:20:69:0D:40:F7:51:1E:D3:55:1E: A6:D0:E5:2C:05:99:70:46:D2:DC:09:B1:89:C0:15:A2: FC:AD:FF:56:3F:48:A1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-10T02:11:16+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
122
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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