Ade Camilleri - Digital Strategist

If you are not familiar with SSL certificates, we weill make it easy for you. Having SSL certificate will provide a comfort for online shoppers, since most of them still feel quite careful about putting their data outhere. SSL certificated howver encrypt sensitive data like credit card numbers and other personal info, also it adds up a sense of trust. Quite a few benefits of having SSL certificate been discussed and in reality the certificate is essential fir certain types of sites.

How the Different Types of SSL Certificates Stack Up

All SSL types use the same standard encryption methods. So one isn’t ‘more secure’ than the other. Each option has their own requirements and distinct characteristics.

Here’s a breakdown of the five major options you can choose from.

Option #1. Single Domain

Single domain (or single-name) SSL certificates protect a single domain. (Exactly what they sound like.)
That means it’ll work well if you’re setting it up on “”. But not for any subdomains on that site. (So “” and any other variation isn’t covered).
Single domain SSL certificates are perfect for simple and straightforward content-based sites. That includes most B2B sites. Or e-commerce ones where all transactions occur on a single domain.
“Domain-validated” certificates mean that someone has authenticated domain ownership. (Usually through clicking a link on an email or updating a DNS record.)

Option #2. Multi-Domain (SAN)

Multi-domain SSL certificates are also what they sound like.
Multi-domain SSL certificates are also referred to as “SAN” (for Subject Alternative Names). That means they’ll cover similar domains like “pugQ&” (so you can read and respond to the mountain of pug fan mail). It will also cover “” (for my yet-to-be-created internet dating site for pug owners. UGC SEO FTW!).
One multi-domain SSL certificate is all it takes to cover a suite of sites. So they provide flexibility for covering sites that might go away or not yet exist. Your registrar (and their certificate of authority) will provide a limit on the number of sites included (which can be anywhere from 100 – 200+).

Options #3. Wildcard

Wildcard SSL certificates cover all subdomains on a single root domain or host name.
Think: “”, “”, or “”.

This scenario would be useful for sites like XMind (pictured above). It uses an unsecure, content-driven ‘marketing’ site on the primary domain (shame). But then thankfully runs all purchase-related stuff through a secure subdomain (phew).

A single wildcard SSL certificate would simplify that mess. It will protect the main site. And unlimited-ish (check with your registrar) subdomains under it through a single payment and setup.


Learn more about SSL Certificates on Search Engine Journal

Ade Camilleri is a leading Internet marketer and Data Marketing Analyst for some of the worlds leading Comapnies with a focus on Tourism, Public Companies, Government Organmisatioons and iGaming. He forms part of the Media Plan group of Copmpanies who provide Digital Marketing Services for iGaming, Tourtism and Fortune 500 Companies.