First, let’s briefly define why image optimization (compression) is needed on a website.

It is well known that speeding up a website improves user behavior metrics and increases conversion rates (more sales).

Here is an example graph from Walmart research showing conversion rates depending on load time:

The chart shows that the longer a page takes to load, the fewer customers complete target actions. If your site isn’t fast enough, you are losing potential profit. Speeding up your site improves conversion and increases revenue.

How image optimization speeds up a website

A typical web page consists of:

• HTML code (markup, text),
• JavaScript scripts,
• CSS stylesheets,
• Videos,
• Images.

When comparing the average size of these resources, images usually take the largest share.

It is obvious that optimizing (reducing) images significantly speeds up website loading.

By reducing image size, pages load faster. Optimization can reduce file size by 70–98% without visible quality loss.

What is “image optimization”

Image optimization (compression) is the process of reducing file size (in bytes), ideally without losing quality.

Algorithms remove unnecessary metadata and merge similar colors. The result looks identical, but the file size is drastically smaller.

Proper processing reduces size by 70–98% without visible quality loss.

As a result of image optimization you get

• Faster page loading.
• Higher conversion rates.
• Improved Google Pagespeed Insights scores.
• Reduced bounce rates and improved user behavior.
• Better search engine ranking.
• Reduced server load.
• Disk space savings.

How to optimize images

Manually via Photoshop (“save for web”) is possible but inefficient if you have hundreds or thousands of images.

Cheaper and faster — automate the process

OptiPic.io is a service designed to solve this problem. In minutes, it scans your site and optimizes all images automatically.

It works fully in the background, including for newly uploaded images. OptiPic integrates with any PHP-based site, CMS, or framework.

Advantages of OptiPic

• Full automation, including for new images.
• Image URLs remain unchanged.
• Easy integration with any PHP site.
• Russian technical support.
• No limits on size or volume.
• Works on standard hosting, no VPS required.
• No technical skills needed.
• Free setup assistance.
• No monthly payments.

You can test optimization efficiency at OptiPic.io for free, without registration.