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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

TLSv1.2

l3harris.com · 151.101.66.133:443

Verified
The certificate expires within 30 days.

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

Subject
CN=l3harris.com
Issuer
C=US O=Certainly CN=Certainly Intermediate R1
Valid from
2026-11-05T16:52:55+00:00
Expires
2026-12-05T16:52:54+00:00
Days remaining
27
Serial (hex)
78C632CC135B8C6C546AA168436441D3D776
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:l3harris.com

SHA-256 fingerprint

C9:ED:B7:25:0E:66:67:51:90:F1:09:8B:10:4D:CE:B9:83:80:51:A6:7D:4D:0B:A7:05:61:7E:E6:B9:25:65:A8
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
1F:48:16:41:D9:C5:DB:AB:5D:D2:31:99:C1:BD:FB:AC:D4:88:F2:7A
authorityKeyIdentifier
BD:97:9D:DF:A1:D8:1B:25:99:E3:0C:04:06:89:64:12:D7:65:24:C7
authorityInfoAccess
CA Issuers - URI:http://int-r1.certainly.com
subjectAltName
DNS:l3harris.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crls.certainly.com/17182262453002514/7.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Nov 5 17:51:25.177 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E8:F4:2C:C7:99:75:01:AC:55:27:DE: FB:BA:08:67:AD:1C:50:50:B1:C2:09:45:48:18:0F:8B: 1C:9A:09:FE:D5:02:20:59:18:89:91:10:22:22:AD:EF: 4A:76:3D:A8:39:37:D1:31:DD:3C:2E:5E:A9:43:76:E8: 4F:3E:D7:AB:68:9C:34 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Nov 5 17:51:25.387 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:93:B1:6A:CC:7F:A2:90:E4:F3:F4:2E: 65:81:54:F8:C3:A6:BC:61:A6:EC:F9:41:90:91:65:0F: 78:85:75:BC:53:02:20:20:B4:BF:29:95:EC:03:63:11: EC:3C:6B:CA:AE:0D:4B:27:F0:5F:A4:B8:DD:EC:F9:00: 89:C0:5B:A4:E8:14:0A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-07T17:21:17+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Certainly CN=Certainly Intermediate R1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Root Certificate Authority - G2
Valid from
2022-06-22T00:00:00+00:00
Expires
2032-06-21T23:59:59+00:00
Days remaining
2053
Serial (hex)
11831CDE4CB573E5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

FE:C4:1E:32:CA:75:C2:95:A6:24:0F:A6:39:D3:AB:E3:BF:B5:CB:13:1D:66:90:E2:33:1A:17:6B:ED:2E:5B:D2
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectKeyIdentifier
BD:97:9D:DF:A1:D8:1B:25:99:E3:0C:04:06:89:64:12:D7:65:24:C7
authorityKeyIdentifier
7C:0C:32:1F:A7:D9:30:7F:C4:7D:68:A3:62:A8:A1:CE:AB:07:5B:27
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sfroot-g2.crt.cer
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sfroot-g2.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.49945.1.1
-----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.

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