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

linkcity.net · 204.152.38.70:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `linkcity.net'

Certificate verification failed

Subject
CN=mail.freefallvideo.com
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-17T16:59:46+00:00
Expires
2026-12-16T16:59:45+00:00
Days remaining
68
Serial (hex)
05EFEB2A6CE11FBE083E7814BC3AAEF5B428
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:mail.focuscore.com, DNS:mail.freefallvideo.com, DNS:mail.fulcrumchicago.com, DNS:mail.haninv.com, DNS:mail.hanrahaninvestigations.com, DNS:mail.kcfiber.com, DNS:mail.memechanicalllc.com, DNS:mail.nocix.net, DNS:mail.poweraci.com, DNS:mail.practility.com, DNS:mail.rghinvestigations.com, DNS:mail.shin-go-beek.com, DNS:mail.skydivechicago.com, DNS:mail.wholesaleinternet.net, DNS:mx.fulcrumchicago.com, DNS:s102.ndevix.com

SHA-256 fingerprint

26:5E:F4:DD:34:21:F7:36:11:50:A7:85:7D:CD:87:6F:9A:42:24:20:2A:86:ED:8F:18:EB:C4:5E:4E:2D:D7:7C
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
6A:EE:58:09:29:2F:78:F1:F6:0E:14:B2:A0:E7:15:D7:62:A4:85:64
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.focuscore.com, DNS:mail.freefallvideo.com, DNS:mail.fulcrumchicago.com, DNS:mail.haninv.com, DNS:mail.hanrahaninvestigations.com, DNS:mail.kcfiber.com, DNS:mail.memechanicalllc.com, DNS:mail.nocix.net, DNS:mail.poweraci.com, DNS:mail.practility.com, DNS:mail.rghinvestigations.com, DNS:mail.shin-go-beek.com, DNS:mail.skydivechicago.com, DNS:mail.wholesaleinternet.net, DNS:mx.fulcrumchicago.com, DNS:s102.ndevix.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/41.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86: D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF Timestamp : Sep 17 17:58:17.364 2026 GMT Extensions: 00:00:05:00:42:45:98:FE Signature : ecdsa-with-SHA256 30:46:02:21:00:CF:E6:FD:50:1D:55:CE:4D:0B:76:13: F4:0C:E9:D1:96:8A:55:DB:94:EE:B1:BA:F4:36:80:0A: 07:CD:15:3D:53:02:21:00:F0:2A:96:47:8B:25:92:84: 9B:5F:53:9C:03:8C:51:4C:C8:48:22:97:A7:53:75:10: 98:55:1D:34:67:61:46:74 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Sep 17 17:58:18.407 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A4:8B:1E:AA:05:1A:4D:8B:C1:48:FB: DC:12:5C:AF:61:E0:F2:0E:7C:39:6C:54:D6:9F:CE:85: 9A:E5:5D:9C:7A:02:21:00:95:A5:CD:40:58:EB:D4:6B: E5:5B:35:16:C8:42:37:08:EB:2C:88:62:1D:F5:2A:43: D8:54:0C:CE:DE:F8:F2:B8
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-09T16:19:29+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
694
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
2155
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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