Knowledge Base

How to Activate SSL Certificate in 2025: Complete Guide

Have you ever clicked on a website that never worked and a message said, “Not Secure”? Or Have you noticed that a lock icon was missing from the address bar?

All of this means that the site is not secure! Hackers can easily interpret the connection (when you access unsecure website) and steal your data.

That’s all because of the SSL certificate! Maybe it’s expired or inactive! Websites look unsafe to visitors and can even lose trust and rankings in Google. 

Inactive SSL can make your site unsafe and an easy chance for hackers, data leaks and privacy issues. These problems can make you lose business credibility! 

But don’t worry! You don’t need to be a tech expert to fix this SSL related problem. Activating an SSL certificate is not as complicated as it might sound. With just a few steps, you can protect your site and build trust with your visitors. 

That’s exactly what we’re going to help you with in this blog post.

We’ll tell you step by step how to activate an SSL certificate, explain how to troubleshoot common SSL issues and share the best practices for SSL certificate management to keep your website safe and professional. 

So let’s get started and make sure your website gets SSL!


What is an SSL Certificate and Why Do You Need It?

An SSL certificate is a digital lock certificate that encrypts the connection between your website and visitors. It makes sure that sensitive data like passwords, credit card details and personal information remain safe from hackers. 

How to Activate SSL Certificate

Without SSL, data can be easily intercepted, leaving users vulnerable to hackers.

You need an SSL certificate to build credibility for your website. It activates the lock symbol and “HTTPS” in the browser, proving your site is secure. It also helps improve Google rankings and avoids the “Not Secure” warning.


Steps to Activate SSL Certificate

Now, let’s guide you step by step on how to activate an SSL certificate. We’ll tell you each stage in very simple words so that you can easily understand the process from scratch. 

Right from purchasing a free SSL, to domain validation, generating the CSR (i.e. Certificate Signing Request), installing the certificate on your hosting server and finally testing it, every step will be clearly explained so you can secure your website.

Steps to Activate SSL Certificate

Step 1: Choose the Right SSL Certificate

The first step in activating SSL is selecting the right certificate for your website. 

You can choose between free SSL providers like Let’s Encrypt and Cloudflare or the paid options such as Comodo, DigiCert, and Sectigo. The decision totally depends on your website’s needs and the level of security and trust you want.

Factors to keep in mind include :

  • The domain type (if you need SSL for one domain, multiple subdomains or multiple domains)
  • The validation level (Domain Validity / Extended Validation) 
  • The overall purpose of your website. 

Most hosting providers like YouStable, QloudHost, GoogieHost & Hostinger offer built-in SSL solutions, making the setup process easier for the newbies.


Step 2: Purchase or Get Free SSL Certificate

Once you know what type of SSL you need, the next step is to obtain the certificate. You can acquire SSL certificates through your hosting provider or domain registrar. 

Users are often confused if to obtain a Free or a Paid SSL. This table below is gonna clear the difference to you.

Don’t forget to check renewal costs and if your provider offers auto-renewal, which ensures your website never goes “Not Secure” due to an expired certificate.


Step 3: Generate a CSR (Certificate Signing Request)

Before installing your SSL, you need to generate a Certificate Signing Request (CSR), which is a block of encoded text containing your domain details and a private key. 

The CSR is sent to the Certificate Authority (CA) to validate your request and issue the SSL certificate. The private key stays securely on your server and is used for encrypting and decrypting your website’s data.

As far as generating a CSR is concerned, then you can do that easily through cPanel, Plesk or even manually (if you know about coding then do it manually otherwise avoid this manual step) via OpenSSL commands if you have server access. 

Most hosting providers offer step-by-step procedure in their dashboards to make the process simple. Once generated, your CSR will be submitted to the CA, and in return, you’ll receive the SSL certificate files required for installation.


Step 4: Complete the Domain Validation Process

Once you’ve purchased your SSL certificate, the next step is to complete the domain validation process.

This step is really important because it checks that you are the real owner of the domain you’re securing. 

Depending on your SSL provider, you may receive a validation email at your domain’s registered email address, or you may need to add a specific DNS record or upload a file to your server. 

These methods ensure that only the real domain owner can activate the SSL certificate. (This step is important as it removes any chance of manipulation and only real domain owner can do this step)

The type of SSL you’ve selected will determine the extent of validation required.

  • For basic Domain Validation (DV), a simple email confirmation or DNS verification is often enough.
  • For Organization Validation (OV) or Extended Validation (EV), additional documentation and business verification may be necessary. 

Completing this process ensures your SSL certificate is approved without delays, so you can move forward with installation.


Step 5: Install the SSL Certificate on Your Server

After the validation process, the SSL certificate must be installed on your server to enable HTTPS. 

The installation method depends on what hosting provider you’ve taken the service from. 

  • For users with cPanel or Plesk, installation is usually very very simple and can be done via their SSL/TLS management tools. 
  • If your site runs on Nginx or Apache, you may need to manually configure your server files with the certificate and private key. (You need technical help to carry out this process manually. We’ve added the steps further)
  • If you’re using a CDN like Cloudflare, you can set up SSL directly within the Cloudflare dashboard, which is also a simple process. 

Most SSL providers / hosting providers also offer a step-by-step general installation guide to help you carry out the process. These guides cover everything from uploading your SSL files to updating your website configuration. 

Below, we’ve added the steps, how a newbie can install an SSL certificate:

  1. Access Your Hosting Control Panel or Server 
  • cPanel: Log in and go to SSL Manager >> Manage SSL sites.
  • Nginx/Apache: Access your server via SSH.
  • Cloudflare: Log in to your Cloudflare dashboard.
  1. Upload Your SSL Certificate
  • cPanel: Upload the certificate (CRT) and the private key.
  • Nginx/Apache: Place the certificate files (CRT, PrivateKEY) in your server’s SSL directory.
  • Cloudflare: Navigate to SSL Settings >> Enable SSL.
  1. Configure Your Server
  • cPanel: Auto-applies configuration after upload.
  • Nginx/Apache: Update your server block file (/etc/nginx/sites-available) with certificate paths.
  • Cloudflare: Choose SSL mode (Flexible / Full / Full Strict).
  1. Restart Your Server
  • Apache: sudo systemctl restart apache
  • Nginx: sudo systemctl restart nginx

Not needed for cPanel, Plesk, or Cloudflare as they auto-apply changes.

Once you complete the installation, ensure your website runs securely over HTTPS. It builds user trust, and prevents browser warnings such as “Not Secure.” 

Once installed, it’s important to test your SSL setup to confirm it’s working correctly on all pages of your site or not. So, to verify the installation of SSL certificates:

  • Visit your site with https:// & check for the lock icon
  • You can even use a free tool like SSL Labs SSL Test to confirm installation
  • Ensure all site pages (including subdomains) load securely without any warnings.

Step 6: Update Domain & Website Settings

After installing your SSL certificate, the next step is updating your domain and website settings to ensure your site runs fully on HTTPS. 

You’ll need to redirect all HTTP traffic to HTTPS by setting up 301 redirects in your server configuration or through your CMS settings, if you use WordPress. This ensures visitors always land on the secure version of your site, improving Google rankings.

Plus, update your internal links, images, scripts and other resources to use HTTPS. Some CMS platforms allow you to force HTTPS across all pages, while others may require manual updates. 

Making these changes guarantees a good and secure browsing experience for your visitors and eliminates security issues.


Step 7: Test Your SSL Certificate

Once your SSL is installed and your settings are updated, it’s time to test your certificate to confirm everything is working correctly. 

Use tools like SSL Labs and Why No Padlock can help you analyze your SSL configuration, identify potential issues and ensure your site is fully secure. 

Running these tests gives you confidence that your visitors are protected with strong encryption.

You should also check for mixed content errors, which happen when some elements (like images, scripts, or CSS files) still load over HTTP. 

Lastly, open your website in a browser and confirm the lock icon is visible in the address bar.


Troubleshooting Common SSL Issues

SSL certificates are really important for securing your website, but sometimes errors can occur during or after installation. 

These issues can cause warnings like “Not Secure” in browsers, break website functionality, or it at times block visitors from accessing your site. These issues can be easily fixed and resolving it doesn’t require you to be a techie:

Troubleshooting
  • Mixed Content Errors: This happens when your website loads both HTTPS and HTTP resources, causing security warnings. Fix it by updating all links, images, and scripts to use HTTPS.
  • SSL Certificate Not Trusted: If browsers show your SSL as “untrusted,” it may be due to missing intermediate certificates. Ensure you install the full certificate chain, including root and intermediate files.
  • Expired SSL Certificate: An expired SSL certificate will trigger “Not Secure” alerts, blocking trust from visitors. Always keep a record of renewal dates and set auto-renewal if your provider supports it.
  • Incorrect SSL Installation: Sometimes, SSL isn’t installed correctly on the server. Double-check your server configuration and confirm the private key, certificate, and chain files are properly linked.
  • Domain Mismatch Error: This occurs when the SSL certificate doesn’t match the domain name. Ensure the certificate covers your exact domain, including variations like www and non-www.

Maintain and Renew SSL Certificates

Keeping your SSL certificate active is just as important as installing it. 

Regular maintenance ensures your website continues to display the secure lock icon and protects users’ data. Monitoring for mixed content, keeping software updated, and verifying SSL chain validity are important steps that help avoid disruptions in security. 

By performing these above routine tests, you can prevent unexpected downtime.

Renewing SSL certificates on time is also an important step to avoid service interruptions. Many SSL providers offer auto-renewal options, which take the hassle out of manually updating certificates. 

If you manage multiple domains, consider using a centralized management tool to track them efficiently.


Best Practices for SSL Certificate Management

Let’s see how to manage SSL certificates properly! It is important to keep websites secure and trustworthy.

A well-managed SSL certificate protects data during transmission and improves user confidence and search engine rankings.

Best Practices for SSL Certificate Management

By following it, businesses can prevent common issues and enhance performance:

  • Always use 2048-bit or higher encryption: Strong encryption ensures that sensitive data like passwords and payment details remain secure during transmission. Using 2048-bit or higher keys makes it significantly harder for attackers to break the encryption.
  • Enable HSTS (HTTP Strict Transport Security): HSTS forces browsers to connect only through HTTPS, preventing downgrade attacks and cookie hijacking. It ensures users are never exposed to insecure HTTP connections, even if they type it manually.
  • Redirect all traffic to HTTPS: This ensures that visitors are always accessing the secure version of your site. It prevents accidental exposure of unencrypted content, maintaining consistent protection. This also helps avoid duplicate content issues with Google.
  • Regularly test SSL for vulnerabilities: Regular SSL scans help identify configuration issues, weak ciphers, or expired certificates. Tools like SSL Labs can highlight potential risks before attackers exploit them.
  • Combine SSL with firewall & CDN for complete security: SSL encrypts data, but pairing it with a firewall and CDN strengthens overall protection. Firewalls block malicious traffic, while CDNs provide speed and DDoS resistance.

FAQs – How to Activate SSL Certificate?

How long does it take to activate an SSL certificate?

Activating an SSL certificate usually takes just a few minutes to a few hours, depending on the type of SSL you purchase. For free SSL certificates (like Let’s Encrypt), activation is often instant once the domain verification is completed. For premium SSL certificates that require additional validation, such as Organization Validation (OV) or Extended Validation (EV), it may take a few days because the certificate authority has to verify your business details.

How to reactivate an SSL certificate?

If your SSL certificate has expired or become inactive, you can reactivate it by renewing it with your certificate provider. The reactivation process usually involves generating a new Certificate Signing Request (CSR), verifying your domain again and then reinstalling the renewed certificate on your server.

Can I install SSL on multiple domains?

Yes, but it all depends on the type of SSL certificate you purchase. 1 Domain SSL only secures one domain. A Wildcard SSL secures one domain and all of its subdomains. A Multi-Domain SSL can secure multiple different domains under one certificate, making it a perfect choice for businesses managing several websites.

Is free SSL enough for an e-commerce website?

Free SSL certificates like Let’s Encrypt provide basic domain validation and encrypt data between the browser and your server. While they are sufficient for blogs or personal websites, they may not be enough for e-commerce websites that handle sensitive customer information like credit card details. Paid SSL certificates, especially OV or EV SSL, offer higher trust levels, additional validation, and warranty coverage.

What happens if SSL expires?

If your SSL certificate expires, browsers will immediately flag your website as “Not Secure.” Visitors may see warning messages when trying to access your site, which can drive them away and negatively impact your brand’s credibility.

Do I need technical knowledge to activate SSL?

Not at all! SSL installation options, especially for free SSL certificates like Let’s Encrypt does not. For paid SSL certificates, the process might involve generating a CSR, verifying your domain, and installing the certificate on your server.

Can I switch from free SSL to paid SSL later?

Yes! You can switch from a free SSL certificate to a paid one anytime. Many website owners start with free SSL for basic protection and later upgrade to paid SSL for stronger validation and better trust signals.

How to fix the “Not Secure” warning even after installing SSL?

If you still see a “Not Secure” warning after installing SSL, it usually means your website has mixed content. This happens when some resources (like images, scripts, or CSS files) are still being loaded over HTTP instead of HTTPS. To fix this, update all internal links and resources to use HTTPS.


Conclusion – How to Activate SSL Certificate?

At the end of the day, an SSL certificate isn’t just about a small lock in your browser, it’s about trust & credibility. Without SSL, your site looks unprotected, which can scare away visitors and even harm your business. That’s why activating SSL is one of the most important steps every website owner should take.

Here, we’ve shown you how to activate your SSL certificate step by step, how to fix the most common SSL problems, and also shared best practices to keep your certificate running smoothly. 

If you go through this guide carefully, you’ll have a clear understanding of how to secure your website properly.

So, if you haven’t activated your SSL yet, now is the time to do it. Take a few minutes to follow these steps, fix any issues, and give your visitors the safe browsing experience they deserve.

Leave a Comment