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.limitrack.com · 110.164.203.6:443

Verified

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

Subject
CN=mail.limitrack.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-10-20T09:36:23+00:00
Expires
2027-01-18T09:36:22+00:00
Days remaining
79
Serial (hex)
06743E1F6C0307E3028814A3D60A36C866B6
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.limitrack.com, DNS:autodiscover.limitrack.com, DNS:mail.limitrack.com

SHA-256 fingerprint

02:BB:85:B1:32:BC:96:02:DD:2F:65:24:A1:76:0C:C6:FB:31:42:36:DE:6C:42:4C:2A:BE:29:45:F3:ED:E7:7B
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
25:B2:1A:D2:D4:8B:56:75:B2:7D:EE:A8:5D:15:C6:96:94:29:CD:C8
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.limitrack.com, DNS:autodiscover.limitrack.com, DNS:mail.limitrack.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/55.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Oct 20 10:34:53.806 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:80:D2:71:D7:74:8F:06:F2:16:4B:5F: A4:0C:B3:BF:2B:67:AD:DE:FD:C4:BB:01:4F:4A:28:D8: BA:62:2A:9E:20:02:21:00:A6:0A:1E:16:C7:73:E9:39: 84:15:F1:97:37:91:A9:6D:D4:25:C9:C3:36:58:3C:1C: F3:0F:AD:74:91:57:AA:03 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Oct 20 10:34:54.622 2026 GMT Extensions: 00:00:05:00:29:34:11:8B Signature : ecdsa-with-SHA256 30:46:02:21:00:9D:B1:79:EB:7E:FE:5F:AD:51:95:3B: 02:AF:F7:B9:A3:AA:06:E1:B3:28:80:74:E4:0B:5C:3B: 64:DB:BC:1B:8E:02:21:00:9B:E9:C6:B1:9A:1F:38:BA: 30:E3:C7:FB:87:56:1A:C0:E0:13:16:D0:2A:65:69:78: 4A:4F:46:68:02:2B:E2:A4
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-30T22:02:25+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
673
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
2134
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

Registration / WHOIS →DNS records →