SSL: an Overview

SSL: an  Overview
Written by Nilima PaulDecember 18, 2021
17 min read
Nilima Paul

Technology Security Analyst

In this article, we will know about what is SSL Overview.

What is SSL?

Secure Sockets Layer (SSL) is a type of protocol that secures confidential data over the internet through a process known as encryption. Hence, the goal of SSL is to provide data privacy. For this purpose, a secure connection between the web browser and the server is created.

A Website that has n SSL certificate will contain a small padlock before the website's URL. This means that the site is secured to conduct transactions. Although SSL brings many advantages to your website there are potential disadvantages that many people are unaware of. It is important to know the advantages as well as disadvantages of SSL before implementing them onto your site.

In this article, you will get information on 7 Advantages and Disadvantages of SSL | Limitations & Benefits of SSL. From this post, you will know the pros and cons of using SSL.


What Are The Benefits of Using SSL

Numerous website admins work under the bogus suspicion that SSL/TLS just offers advantages to locales that cycle touchy data like Visas or banking subtleties. And keeping in mind that SSL/TLS unquestionably is fundamental for those destinations, its advantages are in no way, shape, or form restricted to those spaces.

One of the fundamental advantages of SSL/TLS is encryption. At whatever point you or your clients enter data at your site, that information goes through numerous touchpoints before it arrives at its last objective. Without SSL/TLS, this information gets sent as a plain message and malevolent entertainers can listen in or modify this information. SSL/TLS offers highlight direct insurance to guarantee that the information is secure during transport. Indeed, even a WordPress login page ought to be scrambled! Assuming n SSL authentication is available however isn't substantial, your guests might be confronted with the "your association isn't private" blunder.

Another key advantage is validation. A functioning SSL/TLS association guarantees that information is being shipped off and gotten from the right server, rather than a noxious "man in the center." That is, it assists with keeping malevolent entertainers from erroneously imitating a site.

The third center advantage of SSL/TLS is information respectability. SSL/TLS associations guarantee that there's no misfortune or adjustment of information during transport by including a message validation code, or MAC. This guarantees that the information that gets sent is gotten with practically no progressions or noxious modifications.

Past encryption, validness, and trustworthiness, there are likewise other less specialized advantages like:

The potential for further developed rankings in Google natural hunt

Further developed trust with guests.

Advantages of SSL

1. Security

The major goal of an SSL certificate is to encrypt information so that it can only be read by intended recipients. The information that gets passed through the internet has a high chance of getting in hands of third parties. Since the SSL certificate encrypts data, random characters are inserted into them. Even if intruders be able to acquire this information, they will not be able to understand them. Thus, SSL makes it ideal for protecting sensitive information such as user IDs, passwords, and credit card numbers.

2. Authentication

As mentioned earlier data travels through multiple parties on the internet. Therefore, it has a greater tendency to get accessed by unintended third parties. SSL ensures that whatever information is present on your site reaches the correct server. For achieving this SSL uses protection known as the Server certificate. This Server certificate makes sure that the SSL certificate provider is trusted by acting as a middle person between the browsers and SSL servers.

3. Reliability

Whenever n SSL certificate is used on a site, it verifies. Hence, when visitors visit a site, it provides a sense of trust that this site is legitimate and not fake. Generally, n SSL authenticates site will show a green lock on the address bar. This lock mentions that the site has taken security measures and is reliable enough to make transactions.

4. Prevent Phishing

Occasionally users might receive phishing emails (Often in the form of advertisements and shipping affirmations) that direct links to another site. The sole purpose of these sites is to gather sensitive information such as credit card details. However, it is nearly impossible for these sites to obtain n authentic SSL certificate. When the visitors don't notice n SSL certificate, they will probably not enter any confidential pieces of information.

5. Online Payments

All the payment card industries require sites to have an n SSL certificate with at least 128-bit encryption to accept payments. Without a proper SSL certificate sites won't be able to accept payments from credit cards.

6. Software Requirements

SSL does not require the installation of client software. The only thing required is to connect to the internet through a standard web browser. Thus, the cost of software purchase, maintenance, and management can be saved significantly. This can be beneficial for both small and large-sized organizations.

7. SEO

Recently Google made announcements that having an n SSL certificate is one of the factors to boost search engine rankings. The algorithm is made in such a way that sites with an n SSL certificate will rank higher in Search Engine Result Pages (SERP). Almost all the sites that rank higher in Google do possess n SSL certificate.

Disadvantages of SSL

1. Performance

When an n SSL certificate is used on a site, the speed of transactions will get drastically reduced. This happens because of the encryption and decryption of data before it can be used. However, this performance slowdown will only be noticeable to the websites that have a large number of visitors.

2. Cost

Purchasing and setting up n SSL certificate can be quite expensive. This is basically due to the maintenance involved and the verification process. However some of the hosting companies offer free SSL certificates, but it is not normally recommended due to various reasons. Depending on the type of certificate the cost can vary (From the level of identity verification and how many domains and subdomains the certificate is going to cover).

3. Expiry

Occasionally the SSL certificate needs to be renewed. If it is not renewed from time to time, there will be a popup message stating that the SSL certificate has been expired which means that the site is not secure anymore. Hence, the customers can lose trust in conducting transactions.

4. Data Integrity

Without an SSL certificate, a website is more vulnerable to Man in the Middle attacks. Using n SSL certificate means that the site can be benefited from data integrity. All the data that is been stored inside the online servers are well protected from external threats.

5. Caching

Encrypted content will have a problem of caching if the proxy caching system that is set up on the web browser is complex. To be able to handle this encryption there should be a server added that looks after the encryption before it reaches the caching server. Hence, all the vvisitor'sdata are well encrypted when they are visiting the site.

6. Protocol Complications

If the SSL certificate isn't implemented properly, the files that should be served through HTTPS will be served via HTTP. Hence, there will be a warning message displayed to the visitors stating that their data is not protected.

7. Application Support

In its initial stages, SSL was only meant to support web-based applications. Anything other than that requires purchasing modules from application vendors. Additionally, the setup process here isn't easy, it also requires changes in the in-house software.


I chose to zero in on the SSL and TLS conventions in this blog series rather than any of the other secure correspondence conventions, as I feel that the solid transportation of program data is just set for remarkable development, with the squeezing necessity of online individual records and push of distributed computing, we would all be able to hope to enter delicate data online sometime.

As you can see SSL and TLS are a long way from uninfringeable conventions, even later just about 20 years of upgrades and modifications, but when contrasted with different advances that have been around for that measure of time it has demonstrated one of the more powerful ones.

Since the convention was taken over by the Internet Engineering Task Force, blemishes, for example, the redirection assault that was referenced before have regularly been immediately delivered. The issue with these imperfections is the time it takes sellers and executives to fix their productproductscales, leaving clients' information helpless.

In large numbers of the models that are given around overcoming SSL and TLS, it's not simply the genuine conventions that are permitting this spillage of information. The weaknesses that encompass these security conventions regularly have more to do with the deteriorating declaration biological system and client training. This will just deteriorate except if something is done with regards to developing organizations' lazy way to deal with approving clients. Because of this slip is approval, the conventional SSL testament has fairly been supplanted by the Extended Validation (EV) endorsement, which isn't just more costly yet, in addition, requires a set of rules to be trailed by the backer ( preceding giving the declaration.

Locales, for example, Hotmail and Gmail are currently beginning to turn out to be marginally savvier to the SSL and TLS ricocheting assaults by getting the client going on scrambled pages to stay away from SSL stripping assaults. Additionally, since the arrival of Firesheep before the end of last year (, a meeting capturing device that asks clients to share decoded Wi-Fi association, destinations, for example, Facebook and Twitter presently give clients the choice to remain 'HTTPS' for their whole meeting (Rice, 2011).

There are consistently new endeavors emerging to expand the security of the SSL and TLS conventions. Anyway, these will just at any point be extra advances that are added to the current organization model, to fulfill this developing need to get information over a framework that was never intended for this sort of traffic. The most recent adaptation of TLS, 1.2 anyway has been planned so that it will probably be being used for quite a while to come.

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Nilima Paul
Technology Security Analyst
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