How to Fix: SSL on all pages

SSL on all pages is an SEO check in the E-Commerce SEO (WooCommerce) category, and it is a critical issue that should be fixed immediately — it directly impacts your search engine rankings and visibility. On a store that takes payments, this is not really an SEO nicety. It is table stakes, and a single insecure page can undermine trust on every other one.

What this check is really about

The check verifies that every page on your site is served over HTTPS, with a valid certificate and no mixed content. “All pages” is the operative phrase. Most WooCommerce stores I audit have a certificate installed and the homepage locked down — and then a handful of old product images, a hard-coded script, or a stray internal link still loading over plain http://. That is enough to strip the padlock, trip a browser warning, and tell Google the site is not fully secure.

Why it matters for a store

HTTPS has been a lightweight ranking signal for years, but on an e-commerce site the ranking effect is the smaller half of the story. The larger half is conversion. A browser that shows “Not secure” in the address bar at the moment a customer is about to type a card number does more damage than any keyword you could win. Mixed-content warnings on a checkout page are pure abandonment.

• It is a confirmed, if lightweight, Google ranking signal
• It is required for the trust cues customers look for before paying — the padlock, no warnings
• It protects customer data in transit, which is a legal and reputational obligation on a store
• Ignoring it triggers browser warnings that directly suppress checkout conversion

How I would diagnose it

1. Run an SEO audit with the SEO Roadmap tool to list any pages served over HTTP or flagged for mixed content
2. Open key pages — homepage, a product, cart, checkout — and watch the browser padlock; a warning icon means mixed content on that page
3. Use browser developer tools (F12), Console and Security tabs, to see exactly which asset is loading insecurely
4. Check Google Search Console for HTTPS coverage and any security-related messages

How to fix this in WordPress

Difficulty Level: EASY – This fix is straightforward and can typically be completed by anyone with basic WordPress knowledge.

Estimated Time: varies

1. Install a valid certificate. Nearly every host offers free Let’s Encrypt certificates now; there is no reason to run a store without one. Confirm it covers both the root and www variants.
2. Set WordPress and Site Address to https:// under Settings → General so WordPress stops generating insecure URLs.
3. Fix mixed content at the source. Run a search-replace across the database to update old http:// asset URLs to https://. The most common culprits are images uploaded before the certificate and hard-coded links in older posts.
4. Force a redirect. Add a 301 from HTTP to HTTPS at the server level so no one — and no crawler — ever lands on the insecure version. Do this once, properly, rather than page by page.
5. Keep the plugin as a safety net, not the fix. Really Simple SSL will paper over mixed content on the fly, which is fine as a stopgap, but fixing the URLs in the database is the real repair.

Verify the fix

1. Clear your WordPress cache if you’re using a caching plugin
2. Re-run the SEO Roadmap audit to confirm every page now reports secure with no mixed content
3. Check Google Search Console after a few days to ensure Google has recognized the fix and is indexing the HTTPS URLs

The part people forget after the certificate is live

Installing the certificate feels like the finish line. It is the start. Here is what I would check before calling it done: that your XML sitemap lists HTTPS URLs, that canonical tags point to the HTTPS version, that Search Console has the HTTPS property registered and verified, and that internal links in your theme and menus are not hard-coded to http://. I have seen a store “go secure,” redirect correctly, and then keep bleeding ranking because its sitemap still advertised the old HTTP URLs and Google kept crawling a version that now 301-redirected on every hit. The certificate secures the connection; these details tell search engines which version is the real one.

Recommended Tools & Plugins

These tools can help you fix and prevent this issue:

• Yoast SEO – Comprehensive SEO plugin with built-in checks
• Rank Math – Feature-rich SEO plugin with detailed analysis
• Google Search Console – Free tool to monitor your site’s search presence
• SEO Roadmap – Complete SEO audit and action plan tool

Common Mistakes to Avoid

• Securing the homepage but leaving old product images loading over HTTP
• Relying on a plugin to hide mixed content instead of fixing the URLs in the database
• Forgetting to update the sitemap, canonicals, and Search Console property to HTTPS
• Skipping the server-level 301 so insecure URLs stay reachable

Need More Help?

If you’re still having trouble fixing this issue, consider:

• Consulting with a WordPress developer or SEO specialist
• Checking the WordPress support forums for similar issues
• Reviewing your theme and plugin documentation
• Running a complete site audit with SEO Roadmap for a prioritized action plan

This guide is part of the SEO Roadmap knowledge base – your complete resource for WordPress SEO optimization.