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

mail.ltn.co.id · 103.126.10.242:443

Verified

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

Subject
CN=mail.ltn.co.id
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-25T22:25:23+00:00
Expires
2027-01-23T22:25:22+00:00
Days remaining
80
Serial (hex)
05B82610E65149C7B2120A0309701AC9BFF7
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

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

SHA-256 fingerprint

B6:38:B1:1A:E7:C9:1D:23:52:04:3E:15:8F:F2:16:AB:EA:FF:9A:E3:DB:30:23:35:AE:ED:61:1D:A3:3C:AA:05
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
3F:8A:BB:74:06:8A:DC:4A:BA:E7:56:90:D4:99:6E:B2:8B:70:D1:A2
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.co.id, DNS:webmail.ltn.co.id
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/120.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Oct 25 23:23:54.179 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EF:A5:F4:44:24:58:2F:65:64:93:05: 90:CF:84:EF:A1:94:7D:90:6A:4E:1D:4C:41:30:85:3F: 65:D6:65:F0:84:02:21:00:F4:3C:1E:6D:4D:98:DC:FE: 3F:E7:42:F9:B8:DA:0A:71:22:22:CA:BB:20:EA:A0:6E: 09:10:17:A7:6C:E5:56:75 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:E8:22:FC:2B:AB:0E:92:EE:D0:E9:FA:D6:96:64:60: 27:76:D0:17:60:E0:89:05:09:C9:23:A1:B0:3F:C3:7F Timestamp : Oct 25 23:23:50.979 2026 GMT Extensions: 00:00:05:00:0F:D1:65:9C Signature : ecdsa-with-SHA256 30:45:02:20:78:1B:F3:19:3D:21:1A:E3:EC:B4:67:E0: 18:D1:5C:F9:32:16:8C:22:30:AF:AE:CC:89:21:8E:99: DB:1C:F3:A2:02:21:00:98:57:1F:19:0A:57:C9:3C:DA: D4:49:BB:96:BF:A9:56:7F:B2:90:FA:2C:34:06:52:43: 51:62:24:A3:FD:F4:05
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-04T08:08:32+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
668
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
2129
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-----
MIIF9DCCA9ygAwIBAgIRAPJLbRf52a18scn+p4eCaZ8wDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjYwNTEzMDAwMDAw
WhcNMzIwOTAyMjM1OTU5WjAuMQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQ
MA4GA1UEAxMHUm9vdCBZUjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIB
ANvGJnN78CTJdWL3+eGfsLN5TrNBJs+VH9hRXqRbwxu9sGNiB0BD1fcOxbSUQCJI
M1xE13Db+5Cw1w0s0EBYsvuIP/6joF0w8cuImbgR1OGgYbSQ4OpzI+DG8SGuTlcE
873OCS+kh3srlo6vl43M5OJg4Aeo1sfHp6kTJDoIiFBNJAY+OKfX/FUvYKuhjT+n
o49lmqmupSBI5PkBQiqrEGtWU5uxU/cQWHGu8jSjFBznZqvbNPLMXMLFxCb3WTfr
JBXXjqvWG+v4bjzxjjeAtOlU7qarRDvNOyAuQYLln904M+faKx8hnLCpJ15ZqaEg
cNlY+9MMWcC5yvL2A2j3l9+2buggZX+dOE91zYmIdawTvSZuVvlbRrAlLxIB6pwM
BjneXCjYQ8+3BCCjssbSNpZU3hTcBDdhfAlEDlYr6pEatnMdmDT5BqnKC92bd0Eh
M1fbLHioLccLCuievT8ZkPhZrq7Mii7gNXAcUEAR8+lzYal+9zTg7C5DALyVOeG/
CqfRAMn1KSHCR0NSA6P8tn/mGRlnCct5rtVCLnVySVpU6H1qGg3DgTOuskf8eahT
MiYbI5ezPJmO5ertalskQ1utp74+eDy92PI4ftHKTbq9IWhH4YZKh3WnJEIt+oQv
lYZbY8tpEroKrFB6PFGzrJIDRyts4HqvuH52RFj2zv/BAgMBAAGjgeswgegwDgYD
VR0PAQH/BAQDAgEGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdEwEB/wQFMAMB
Af8wHQYDVR0OBBYEFN7nW2DQIm1AKH0/DQH+pLVStFGUMB8GA1UdIwQYMBaAFHm0
WeZ7tuXkAXOACIjIGlj26ZtuMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEFBQcwAoYW
aHR0cDovL3gxLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAECATAnBgNV
HR8EIDAeMBygGqAYhhZodHRwOi8veDEuYy5sZW5jci5vcmcvMA0GCSqGSIb3DQEB
CwUAA4ICAQA8spSI95KKfn2W6GMmDpHBJSPaLbsS3W93cijJCRCYAc1fsJgL1FIL
7C0C9ecPOdcwB2fi0Dk2p94j9iTJCxmt5CFSKLRWwnXT2MMSXexVxqoVB79BdWPx
VXETkVme/qYSAuKVHh5Ps+5BixgmwS1JkjSAc+MfrUbNssVEEnH0aEiAh+rotXAV
JSP/Ye7LJPEwD9DWG72vVWbhAcuOf5OLjz57Ctk7MgQHynZ7+PlHJtajroCaIbtC
r6tcZZaAwUQm+jQyeWdV+2hv9deOYFmKeQyjjcSrN5Nadrw+L9DZJLbA1HqeNvLh
BgqpP0fvJq2N6EtD574N6eMI7uMsJTnji2UDz9el5XLSv9fqJMuDQtYVb2oTNoKp
oUqhxPVC0aq4eG5MESaIdn8b5ZGSSeAJLMHXljEdlNza+ncfkviXk1POLnnFdvx8
/gk6M374WbLWFXw8N141B/Rl/tINGfl1TxOIiqtiMYkL02RSGb1kq34BL9NPP27z
RGMuHGnzS3hFIrRTfKxrzUZ9RzQWzEG3K6fJ3r2nqSltkeytis9DIBoFY9VmVyjL
M71DMi+y1+TRSJVClEMwvA4yL++7q9XZx5r5wBRWB4kQTKH5qyoZnDw7iiuh1lID
yDFx8r7i9vIJU5HS3moZLkYWAOilMaV9N56A9Bgb6dNcHkvg3NoaYA==
-----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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