Squarespace Site Says Not Secure (SSL Error)

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Workaround available All Updated November 13, 2026Based on 4 user reportsHow we research

Quick answer

A 'Not Secure' warning on Squarespace is usually SSL set wrong, a certificate still being issued, or mixed content from http:// embeds. Set SSL to Secure (Preferred) and replace http:// links.

Most likely fix: Turn SSL on

How to fix it

Try these in order — the most common fix is first.

  1. 1. Turn SSL on

    1. Open Settings > Advanced > SSL
    2. Set the security preference to Secure (Preferred)
    3. Squarespace then redirects http to https automatically
    Did this fix it?
  2. 2. Wait for the certificate

    1. After connecting a domain give it up to 72 hours
    2. Confirm DNS settings show no 'Record not found' rows
    Did this fix it?
  3. 3. Fix mixed content

    1. Open the page in Chrome, press F12 and read the Console for 'Mixed Content' warnings
    2. Change http:// to https:// in code blocks, custom CSS and embeds
    3. Replace embeds from sites that do not support https
    Did this fix it?
  4. 4. Test again

    1. Clear cache or open a private window
    2. If it persists after 72 hours contact Squarespace support
    Did this fix it?

Symptoms

The browser shows 'Not Secure' or 'Your connection is not private', or the padlock disappears on some pages.

Why it happens

  • SSL is turned off or the preference is not Secure (Preferred)
  • New certificate still provisioning (up to 72 hours)
  • Mixed content: images, scripts or embeds loaded over http://
  • Incorrect DNS records pointing away from Squarespace

This guide also covers

  • squarespace ssl not working
  • squarespace not secure
  • squarespace your connection is not private
  • squarespace https not working

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