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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

mail.ltn.net.id · 103.126.10.242:443

Verified

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

Subject
CN=mail.ltn.net.id
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-08-26T22:25:27+00:00
Expires
2026-11-24T22:25:26+00:00
Days remaining
35
Serial (hex)
066F040A2B957A1591767153DC6FF6FD91C7
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:mail.ltn.net.id, DNS:webmail.ltn.net.id

SHA-256 fingerprint

A4:5B:D0:BA:AA:C0:F6:F2:B8:EA:AB:0C:9C:8B:D7:68:30:2C:E1:34:C7:A4:B5:85:2D:D7:77:1C:2D:51:AC:34
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
92:F8:BC:D7:24:F5:D4:BC:50:53:CA:A6:D7:73:27:48:93:B9:0B:02
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:mail.ltn.net.id, DNS:webmail.ltn.net.id
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/72.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Aug 26 23:23:57.900 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:D4:B5:A1:D8:B9:96:E1:D9:44:E5:CA: D7:77:5A:F3:9F:9F:D1:A5:AC:38:F8:68:ED:41:29:19: 8A:55:6A:C6:75:02:21:00:AB:A7:C2:CD:71:80:9F:1E: B0:B2:E2:F9:49:CD:17:57:CD:BE:1B:E8:64:01:C8:FD: 77:F2:88:EF:7D:EE:75:32 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 : Aug 26 23:23:58.552 2026 GMT Extensions: 00:00:05:00:1E:35:67:FC Signature : ecdsa-with-SHA256 30:44:02:20:30:50:B0:C6:6D:6A:05:E9:ED:8E:6F:79: EC:EC:08:53:3A:67:36:3A:D3:9D:70:68:E6:D9:F3:8E: B0:D4:DA:A5:02:20:72:0C:47:D2:D1:34:E9:93:EC:9C: 26:08:A8:77:03:93:1D:6C:35:06:97:9B:AC:08:DE:9D: 09:78:C1:9C:F5:0D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-20T14:32:01+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
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
683
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
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
2144
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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