ft.com:443

Checked 5/14/2026, 11:57:53 PM · 64ms

Functional but improvable. Look at TLS 1.3 / HSTS.

Warnings

certificate expires in 24 days

Certificate

24d until expiry

Subject: CN=*.ft.com
Issuer: CN=Certainly Intermediate R1, O=Certainly, C=US
Valid from: May 9, 2026
Valid until: Jun 8, 2026
Self-signed: No
Hostname match: Yes
Trusted chain: Yes
Serial: 79D5990C2904FAE53E755DE52253FCDA26CA

Subject Alternative Names (2)

*.ft.com
ft.com

Certificate chain (3)

Leafexpires Jun 8, 2026
CN=*.ft.com
issued by CN=Certainly Intermediate R1, O=Certainly, C=US
Intermediateexpires Jun 21, 2032
CN=Certainly Intermediate R1, O=Certainly, C=US
issued by CN=Starfield Root Certificate Authority - G2, O=Starfield Technologies, Inc., L=Scottsdale, ST=Arizona, C=US
Rootexpires Dec 31, 2037
CN=Starfield Root Certificate Authority - G2, O=Starfield Technologies, Inc., L=Scottsdale, ST=Arizona, C=US
issued by CN=Starfield Root Certificate Authority - G2, O=Starfield Technologies, Inc., L=Scottsdale, ST=Arizona, C=US

Protocol support

Negotiated: TLSv1.3 · TLS_AES_128_GCM_SHA256 (TLSv1.3)

TLSv1
Not supported
not supported
TLSv1.1
Not supported
not supported
TLSv1.2
Supported
TLSv1.3
Supported

HSTS

Max-age: 2.0 years (63072000s)
includeSubDomains: Yes
preload: Yes
Raw header: max-age=63072000; includeSubDomains; preload

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