79% of customers who report dissatisfaction with website performance are less likely to visit that website again

Website performance optimization is a tactic to improve how fast a page loads. Be it a website or application speed impacts user experience, site traffic, and ultimately search rankings, so it’s a critical component to attain predetermined success rate. As users’ act on the web continues to evolve, one can’t afford to overlook the necessity of load speed.

We understand that businesses want their website or app to deliver great user experience, regardless of their industry or niche. That is why Dcastalia ensures that your site or app delights new or returning customers with faster loading speed what brings increased visitor retention and loyalty, and user satisfaction to boost conversions and improve SEO.


Building result-driven digital products that create
value to the consumers

Rangs Properties

Rangs Properties

A leading property developer of Bangladesh that represents architecture at its best. Relentlessly pursued “Creating Lifestyles” without compromise.

To tailor their requirement of a modern website, we went through several UX sessions, worked closely with different teams of designers & architects through out our development process. The final result was a top-class website that becomes an example for rest.

Read case study
Shanta Holdings

Shanta Holdings

Shanta Holdings Limited, a leading real estate, famous for its eye-catching residential & commercial projects. We have been working as a digital partner and providing various design, development & technical solutions.

Our goal was to design and develop a web presence that emphasizes simplicity and speaks for the brand.

Read case study


We ensure quality and commitment throughout the development life-cycle

Based on our client requirements, we perform various optimization operations. For this reason, the work process varies. But we generally perform the following methods on a website.

Image Optimization

Image optimization is the first thing that we do for web performance optimization. We use KeyCDN along with an Optimus API that focuses on both lossless and lossy image compression. The good thing about the Optimus API is that it can be used in any platform. By using Optimus you can save up to 30% without lossless. We also use other tools such as Grunt, Gulp, ImageAlpha (For Mac).

Continue reading
Our Work Process



watch video


Got a project to discuss with us?

Explain your project


Frequently Asked Questions

Do you perform WordPress website optimization?

Yes, we provide full WordPress website optimization for you.

Will you provide code and database profiles so that I can see what’s slowing down my website?

Yes. We identify the portion of codes or blockages that is slowing your website down. We can also provide you with your codes and database profiles and point out the things that were causing the decrease in speed.

Can you minify the images on my website?

Yes we can. Minifying images increases your website load speed. We use javascript and photo manipulation to reduce the size and keep the quality intact as much as possible.

What tools do you use for web optimization?

Grunt, Gulp etc.

Why us



watch video

Latest posts

Explore our blog
Re-Learning the Fundamentals of Web Development in 2021

Re-Learning the Fundamentals of Web Development in 2021

Value of Content Writing for your Online Presence

Value of Content Writing for your Online Presence

Core Elements of Content Marketing

Core Elements of Content Marketing