If your website suddenly shows a “Not Secure” warning in the browser, it can damage your credibility instantly.
Visitors may assume your site is hacked, unsafe, or untrustworthy—and many will leave before ever contacting you or making a purchase.
The good news? In most cases, the issue is straightforward to fix.
In this guide, you’ll learn:
- Why your website says Not Secure
- What causes browser security warnings
- How to fix SSL/HTTPS issues step by step
- How to prevent it from happening again
Let’s break it down in simple terms.
What Does “Not Secure” Mean on a Website?
When a browser like Google Chrome or Mozilla Firefox says “Not Secure,” it means your website is not properly using HTTPS encryption.
HTTPS protects the connection between your visitor and your website.
Without it:
- Data can be intercepted
- Login credentials may be exposed
- Payment information may be vulnerable
- Visitors lose trust immediately
Modern browsers flag insecure websites to protect users.
Why Your Website Says Not Secure
Here are the most common reasons your website shows the warning.
1. You Don’t Have an SSL Certificate Installed
The most common cause is missing SSL certificate installation.
An SSL certificate enables HTTPS and encrypts website traffic.
Without it:
- Your site loads on HTTP
- Browsers mark it as insecure
- Visitors see warnings in the address bar
How to Check
Look at your URL:
- Secure:
https://yourdomain.com - Not Secure:
http://yourdomain.com
If your site uses HTTP only, SSL is missing.
2. Your SSL Certificate Expired
SSL certificates have expiration dates.
If your certificate expires:
- Browsers stop trusting it
- Security warnings appear immediately
- HTTPS may stop working entirely
Common Causes of Expiration
- Auto-renew failed
- Hosting provider issue
- Domain validation failed
- Manual renewal forgotten
3. Mixed Content Errors
This happens when your site loads over HTTPS but still contains insecure HTTP resources.
Examples:
- Images loading via HTTP
- CSS/JS files using HTTP
- Embedded videos from HTTP sources
- Hardcoded internal links
Browsers detect this mismatch and may still show warnings.
4. HTTPS Redirect Is Not Configured Properly
Sometimes SSL is installed, but visitors can still access the HTTP version of your website.
Without proper redirect rules:
- Users may land on insecure HTTP pages
- Search engines index duplicate versions
- Browser warnings continue
5. Incorrect SSL Installation
Improper SSL setup can break trust validation.
Examples include:
- Missing intermediate certificate
- Wrong certificate installed
- Domain mismatch
- Corrupted certificate chain
6. CDN or Proxy Configuration Problems
If you use services like Cloudflare or another CDN:
- SSL may be enabled on CDN but not origin server
- Proxy SSL mode may be misconfigured
- Flexible SSL can cause redirect loops/warnings
Why This Is a Serious Problem for Your Business
Many small business owners underestimate how damaging this warning can be.
It Hurts Trust
Visitors often interpret “Not Secure” as:
- Website hacked
- Scam/fraud risk
- Unsafe checkout/login
- Poor professionalism
It Reduces Conversions
Security warnings can drastically lower:
- Lead form submissions
- Purchases
- Call bookings
- Contact requests
It Hurts SEO Rankings
Google uses HTTPS as a ranking signal.
An insecure website may:
- Rank lower in search results
- Lose crawl/indexing efficiency
- Suffer technical SEO issues
How to Fix a “Not Secure” Website
Follow these steps.
Step 1: Install an SSL Certificate
Get an SSL certificate from:
- Your hosting provider
- Free provider like Let’s Encrypt
- Premium SSL vendors
Most hosting companies offer free SSL today.
Step 2: Force HTTPS Redirects
Ensure all HTTP traffic redirects to HTTPS.
This guarantees visitors always land on secure pages.
Example Redirect Rule
Your server should automatically convert:
http://yourdomain.com
to
Step 3: Fix Mixed Content Issues
Update all HTTP resources to HTTPS.
Check for:
- Image URLs
- Script URLs
- CSS files
- Internal links
- Embedded content
For WordPress sites, plugins can help automate this.
Step 4: Verify SSL Certificate Installation
Use online SSL checkers to confirm:
- Certificate validity
- Expiration date
- Chain completeness
- Domain matching
Step 5: Update CMS / Platform Settings
If you use WordPress:
Make sure both settings use HTTPS:
- WordPress Address (URL)
- Site Address (URL)
Step 6: Clear Cache / CDN Cache
After SSL fixes:
- Clear website cache
- Purge CDN cache
- Test in incognito browser
Old cached HTTP resources can persist.
How to Prevent the Problem in the Future
Enable SSL Auto-Renewal
Prevent certificate expiration by enabling automatic renewal.
Monitor SSL Health Regularly
Check:
- Expiration dates
- Certificate chain
- Browser trust status
Monthly audits help prevent downtime.
Keep Plugins / Themes Updated
Outdated plugins/themes can create mixed content or HTTPS conflicts.
Especially on WordPress sites.
Use Proper Hosting
Cheap hosting often causes SSL issues due to:
- Broken auto-renewals
- Poor server configuration
- Weak support
Reliable managed hosting reduces SSL problems significantly.
DIY vs Hiring an Expert
Some SSL fixes are simple.
Others can become technical quickly—especially if you have:
- Redirect loops
- CDN conflicts
- Server-level SSL errors
- Broken certificate chains
- WordPress mixed content issues
If you’re unsure, professional help can save hours of frustration.
Need Help Fixing Your SSL / HTTPS Issue?
If your website still says Not Secure and you want it fixed properly:
I offer professional SSL installation and HTTPS error fixing services on Fiverr for small business websites.
My service can help with:
- SSL certificate installation
- HTTPS redirects
- Mixed content cleanup
- WordPress SSL fixes
- Cloudflare / CDN SSL setup
- Browser security warning troubleshooting
👉 Contact me on Fiverr to secure your website quickly and correctly.
Final Thoughts
A “Not Secure” warning may seem minor—but it can seriously harm your business.
It affects:
- Trust
- SEO
- Conversions
- Professional reputation
Fortunately, most SSL/HTTPS issues are fixable with the right setup.
The key is identifying the root cause:
- Missing SSL
- Expired certificate
- Mixed content
- Redirect issues
- CDN/server misconfiguration
Fix the issue promptly, and your website will be secure, trustworthy, and SEO-friendly again.
Frequently Asked Questions
Why does my website say not secure even with SSL installed?
Usually because of:
- Mixed content errors
- Expired SSL
- Broken certificate chain
- Redirect misconfiguration
How much does SSL installation cost?
Many hosting providers offer free SSL. Premium installation/support varies depending on complexity.
Can I fix SSL issues myself?
Basic SSL setup is DIY-friendly. Advanced issues often require technical expertise.
Does HTTPS improve SEO?
Yes. HTTPS is a confirmed ranking signal used by Google.


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