SSL Resources

Expert Tips and best practices to fight against cyber threats

Explore our resources page to find the answers you need to strengthen your company's defense against cybercriminals. Check out our extensive guides for practical tips and tricks to improve your cybersecurity.

Top SSL/TLS Resources

Save Up To 85% On Sectigo's Most Popular SSL Certificates:

Most Popular Sectigo SSL Certificates: Years Price/Year
Sectigo PositiveSSL Certificate
Most affordable SSL certificate (DV). $50,000 warranty.
PositiveSSL Certificate PositiveSSL Certificate $49.00
$10.98
$9.98
$9.15
$8.92
$8.78
PositiveSSL Certificate Add to cart
Sectigo EssentialSSL Certificate
Basic SSL for business sites (DV). $10,000 warranty.
EssentialSSL Certificate EssentialSSL Certificate$79.95
$29.80
$25.95
$24.83
$24.21
$23.84
EssentialSSL CertificateAdd to cart
Sectigo SSL Certificate
Business SSL certificate (DV). $500,000 warranty.
Sectigo SSL Sectigo SSL$99.95
$74.00
$65.00
$61.67
$60.13
$59.20
Sectigo SSL Add to cart
InstantSSL Premium Certificate
Premium assurance certificate (OV). $250,000 warranty.
Premium SSL Certificate PremiumSSL Certificate$179.95
$75.89
$66.40
$63.24
$61.66
$60.71
Premium SSL Certificate Add to cart
Sectigo PositiveSSL Wildcard
Secures unlimited subdomains, eg blog.mysite.com (DV). $50,000 warranty.
PositiveSSL Wildcard Certificate PositiveSSL Wildcard$249.00
$97.90
$85.66
$81.58
$79.54
$78.32
Sectigo Positive SSL Wildcard Add to cart

Improve a Website Security with Our Latest SSL Resources

Is It Possible to Have One SSL Certificate for Multiple Domains?

The simple answer is a resounding Yes! You absolutely can use one SSL certificate for multiple domains — or one SSL certificate for multiple subdomains in addition to domains. To understand why and how you can do it , we need to take a look at SSL/TLS certificates and some of its various types. Secure Sockets Layer (SSL)/Transport Layer Security (TLS) are cryptographic protocols that enable end to end encrypted communication between a client machine and a web server. When you decide to install an SSL/TLS certificate on your web Continue Reading

What Is an EV Certificate or Extended Validation SSL Certificate?

Do you like site visitors knowing that your website is legitimate? An EV SSL certificate can help you prove it When you decide to buy an SSL/TLS certificate, you come across various SSL types, and one of them would be an EV SSL certificate. You also might have seen some reputable organizations using an EV SSL certificate on their websites and might wonder, “is it really worth getting an EV SSL for my website?” In this article, we’ll cover details relating to EV SSL certificates and answer questions like “what Continue Reading

How Do I Know If My Site Has a Valid SSL Certificate?

There’s much more than a padlock to check for when looking for a valid SSL certificate… If you don’t have a valid SSL certificate on your website, the users coming to your website will be shown a pesky error that’s highly likely to scare them away. Nobody wants that, and that’s why most websites are now equipped with SSL/TLS security. If you have a website, you need a valid SSL certificate – it’s as simple as that. Many website owners install SSL/TLS certificates on their websites, but they forget to Continue Reading

How Much Does an SSL Certificate Cost? Here’s How to Get it at the Cheapest Price

Thinking of buying a robust SSL certificate that’s easy on your pocket? Here’s what you should know There was a time when website owners used to wonder whether they need an SSL certificate or not. Times, as many know,  are changing. Thanks to the rising level of web security knowledge and push for encryption by browsers, most business owners and web admins understand the need for SSL/TLS. These changes have caused a massive leap towards a more secure web. Whenever someone wants to set up an SSL certificate on his/her Continue Reading

What is an RSA Certificate?

A layman’s guide to understanding the RSA key and algorithm used in SSL/TLS certificates (sometimes referred to as an RSA certificate) If you’re looking for an SSL/TLS certificate, you’re likely to come across a bunch of terms that you have no idea what they mean. ‘RSA certificate’ or ‘RSA algorithm’ are some terms that you’ll find on all SSL certificates. But quite rarely you see a proper understanding given about it. Well, that’s why we’re here for, aren’t we? In this post, we’ll learn about SSL/TLS certificates equipped with the Continue Reading

What is a Domain SSL Certificate? Is it the Right Choice for Me?

Domain SSL certificates are fast and inexpensive…are they the right choice for your website? If you came here searching for “what is a domain SSL certificate,” then you came to the right place. And let us tell you that it’s totally okay to be confused because the world of SSL certificates isn’t easy to understand for people who’re new to this territory. But don’t you worry – we’re going to be your GPS to SSL success. We know you’d love to go straight to the “what is a domain SSL Continue Reading

What Is an ECC SSL Certificate & How Do I Get One for My Website?

Here’s what an ECC SSL certificate will do for your website. When you’re searching for website security certificates, terms such as SSL certificate, TLS certificate, RSA certificate, ECC SSL certificate, and many more are thrown your way. Well, if these terms are causing you some headaches, then you’re not the only one. But don’t you worry as we’re here to cure that headache of yours. In this article, we’ll be talking about ECC SSL certificates, why they’re used, and how you can get one for your website. But before we Continue Reading

How Do I Get & Use a WordPress Multisite SSL Certificate on My Site?

We’ve got the scoop with everything you need to know about SSL multisite solutions for WordPress platform users You may not realize this, but a “WordPress multisite SSL certificate” doesn’t actually exist — it’s just a multi-domain SSL certificate that’s used on a WordPress website. So, in a way, a WordPress multisite SSL certificate is just the synonym of a WordPress multi-domain SSL certificate. This is because a WordPress multisite refers to a network of WordPress sites that you can access through the same WordPress account dashboard; the sites typically Continue Reading

How Does HTTPS Work to Improve Website Security?

Wondering how does HTTPS encryption really work? We’ll break it down into 5 simple steps  It’s no secret that an HTTPS connection is required for data security on websites. In fact, Google uses it as one of its search ranking factors. But to answer the question “how does HTTPS work?” you first need to understand how an HTTPS connection protects your data and what role an SSL certificate plays in the HTTPS protocol enabling process.   This is where an SSL/TLS certificate comes into play.  In this article, we will answer your questions about “how does HTTPS work?” and “how does HTTPS encryption work?” We’ll also explore how it secures data, and how an SSL certificate is required to enable the HTTPS protocol in the first place.    How Does HTTPS Work?  The hypertext transfer protocol Continue Reading

Digital Signature vs Digital Certificate — A Look at the Differences

We’ll break down the differences between a digital certificate vs signature and how each plays a role in cybersecurity If you’re not sure how to recognize a digital signature vs a digital certificate, then don’t worry, you’re in the right place. The digital signature and digital certificate are both the fundamental concepts within the realm of cybersecurity. There is a fundamental difference between a digital certificate vs. a signature. Digital certificates are all X.509 certificates that are issued by one or more publicly trusted certificate authorities (CAs). On the other Continue Reading

Self Signed Certificate vs CA Certificate — The Differences Explained

One type of certificate is meant for internal use and the other can be used on external sites — do you know the difference? Your website is an integral part of your business, and you must not take any risks when it comes to its security. If you’re searching for the best SSL/TLS certificate for your website and have come across the option of a self-signed certificate, you should know everything about it and how it differs from its alternative solution, i.e., a CA-signed certificate. CA Certificate vs Certificate The Continue Reading

The Purpose of an SSL Certificate — Here’s What to Know

What is an SSL certificate used for? Do I really need one for my website? Before understanding the purpose of an SSL certificate, let’s consider this simple scenario. Suppose you’re completing your tax return on the official IRS website (irs.gov). That means you’re supplying your financial information, social security number, tax identification number, and other employment-related data on that website.  How can you make sure your information is only going to be received by irs.gov’s server? How do you know your information isn’t being redirected to someone else’s server, or Continue Reading

The 5 Best SSL Certificates of 2025

Explore everything you need to know about the best SSL certificates — their prices, technical features, warranties, domain coverage, and validation levels! In today’s digital era, a website is an integral part of any business’s success. That’s why a sincere business owner chooses only the best for their site. This can include having the best domain name, tools, plugins, designs, hosting, and of course, the best SSL certificate! An SSL certificate is an essential part of a website’s security posture. It asserts organizational identity and enables data encryption while the Continue Reading

Server Authentication Certificate – What You Should Know

If you’re not sure whether you need an SSL server certificate for your website, we’ll break down why you do People often contact our customer care executives to ask whether they should get an SSL certificate, a SSL server certificate, or a server authentication certificate. It can be confusing because all three of these terms basically mean the same thing. And regardless of which term you choose to use, there’s a lot to know about how these certificates work and why they’re necessary. In this article, we’ll cover everything you Continue Reading

The Advantages of Having an SSL Certificate for Your Website

Do I really need an SSL certificate for my website? We’ll explore the 5 SSL certificate advantages for your website so you can decide for yourself! If you’re wondering whether you really need an SSL certificate for your website, then you’re not alone! When you create a new website, you’re likely to come across so many new technological tools, apps, software, and digital certificates that choosing the best among them is can be a confusing process. As far as an SSL certificate is concerned, people generally consider it the third Continue Reading

What Is a Java Code Signing Certificate?

Know the benefits, cost and other features of a Java signing certificate A Java code signing certificate is just a regular code signing certificate that’s used for signing and securing all types of Java software, applications, and executable. Without a Java signing certificate, your software will display an “Unknown publisher” or “Unsigned” warning message in the security window whenever someone tries to download it. Users’ operating systems will alert the users that your software is coming from an unauthentic publisher and might be compromised, posing a security risk. But with Continue Reading

SSL Certificate: Effect, Activation, and Installation

How long does it take for SSL to take effect? While issuance time for SSL/TLS certificates varies from a few minutes to upwards of 5 days, here’s how you can accelerate the process Are you in the market for a new SSL certificate, or perhaps you’ve recently purchased one? If you’re wondering “how long does it take for SSL to take effect?” or “how long does it take for SSL to work?” then we’ve got you covered. SSL certificates come with different levels of validation, and depending on the level Continue Reading

Exchange 2025 Wildcard Certificate — Why Should I Buy It?

Getting a new SSL certificate can be a daunting process, especially since there are so many different options available. Wildcard SSL certificates are the best choice when it comes to securing multiple subdomains on a single website. If you’ve been searching for “exchange 2025 wildcard certificate” or “wildcard certificate exchange 2025”, we’ve got you covered. In this article, we’ll discuss what a wildcard certificate is, why you should buy it, and how to get one for your Microsoft 2025 server. What Is an Exchange 2025 Wildcard Certificate? A wildcard certificate Continue Reading

How Do I Generate a Self Signed Code Signing Certificate?

Before we get into how you can create a self signed code signing certificate, let’s understand what it is, how it is different from the ones offered by a third-party certificate authority (CA), and which one is more suited for your specific needs. Without further ado, let’s jump right in! What Is a Code Signing Certificate? A code signing certificate is a data file that places a cryptographic digital signature on your code. I say cryptographic because I don’t want some of you to think of it as a digitized Continue Reading

What Is 128 Bit Encryption? Should I Avoid 128 Bit SSL Encryption?

If you’re a website owner who’s been worrying endlessly about encryption strengths and whether to opt for a 128 bit encryption or 256-bit encryption, you’ve just got to read on to ease your nerves! For our other tech-savvy readers, concerned about accessing insecure websites, we’ll look at if a 128 bit SSL encryption standard can be adopted with reasonable safety. When it comes to choosing the right encryption strength in terms of a digital certificate, most sellers offer up to 256-bit encryption. Still, the actual encryption level that’s utilized to Continue Reading