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Squarespace fix guide

HSTS max-age Too Short on Squarespace

HSTS header is present but max-age is under 1 year. Browsers will not cache the HTTPS preference long enough for reliable protection.

Issue ID: SEC-HSTS-002Severity: minorEffort: S

Why this matters

HSTS header is present but max-age is under 1 year. Browsers will not cache the HTTPS preference long enough for reliable protection. This affects browser trust signals and whether visitors feel safe submitting contact details.

Squarespace fix path

How to fix this on Squarespace

Check page settings, navigation, and code injection.

  1. 1Identify whether this is page-level or site-level.
  2. 2Apply the fix.
  3. 3Republish and confirm.

After you fix it

  • Check that max-age is at least 31536000

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