7 Ways to Speed Up Your Website and Improve SEO

Page load speed is a key factor influencing Google rankings, user conversion, and overall visitor experience. Since the introduction of Core Web Vitals by Google, site speed has become one of the most important elements of technical SEO. Moreover, studies have shown that speed optimization can increase conversion rates by over 30%.

If your site is slow, you might be losing customers and search rankings – nobody wants to wait long for a page to load. In this article, I present proven ways to speed up your site and solutions to problems that most often slow down websites.

1. Image Optimization – Biggest Impact on Speed

Images are usually the largest element on a website, taking up even 65% of its weight. Unoptimized photos can significantly increase load time and also contribute to increased CO₂ emissions (longer server runtime translates to higher power consumption).

How to improve:

• Use WebP or AVIF formats, which provide lower file weight while maintaining quality.
• Apply image compression using tools like TinyPNG or Squoosh.app. You can use our free WebP image converter.
• Use responsive dimensions to serve images adapted to the device resolution.

Example: By using WebP, you can reduce image size by 30%, shortening load time by even 1.5 seconds on a landing page.

2. Implementing Cache

Cache is one of the most effective methods of speeding up a site for returning users. Thanks to it, static site files are stored on the server or in the browser, reducing the need to download them again.

Actions:

• Implement browser cache via Cache-Control headers in .htaccess.
• Use plugins like WP Rocket or LiteSpeed Cache for WordPress.
• Set storage duration for static resources – e.g., CSS files for 1 year.

Pingdom studies showed that properly configured cache can reduce load time by up to 70%.

3. Using Content Delivery Network (CDN)

CDN shortens content loading time for users from different parts of the world by serving data from the geographically closest server. Thanks to CDN, not only speed but also site reliability improves.

CDN Tools:

• Cloudflare – free, easy to configure CDN.
• Amazon CloudFront – for more advanced business needs.

CDN is particularly effective for sites with an international audience – implementing it allows shortening load time by up to 50%.

4. Lazy Loading – Loading Elements Only When Needed

Lazy loading makes images and other heavy page elements load only when the user scrolls to them.

How to implement:

• Add the loading="lazy" attribute to <img> tags in HTML.
• Enable this function in WordPress plugins, e.g., WP Rocket or Lazy Load by WP Rocket.

Thanks to lazy loading, initial page load can be accelerated by 20–30%.

5. Code Minification and Compression

HTML, CSS, and JavaScript code can contain unnecessary spaces, comments, and repetitions that increase file weight.

Solutions:

• Minify code using tools like CSSNano and UglifyJS, or use our code minification tool.
• Apply GZIP compression to reduce the size of files sent from the server.

Example: Sites that applied HTML minification saved an average of 20% load time.

6. Monitoring Core Web Vitals

Core Web Vitals are key Google metrics measuring user experience on a page:

• Largest Contentful Paint (LCP) – time to load the largest visual element on the page (under 2.5 seconds).
• First Input Delay (FID) – browser response time to the first user interaction (maximum 100 ms).
• Cumulative Layout Shift (CLS) – visual stability of the page (under 0.1).

How to improve Core Web Vitals:

• Optimize images and text blocks for LCP.
• Minimize server response time to shorten FID.
• Ensure constant image dimensions to avoid visual shifts (CLS).

You can find a full discussion of Core Web Vitals in our article: Technical SEO – Complete Guide.

7. Use Tools for Speed and SEO Analysis

Performance analysis is the basis of effective optimization. Here are tools that will help you identify problems:

• Google PageSpeed Insights – detailed results with improvement recommendations.
• GTmetrix – international speed tests and data collection.
• WebPageTest – tests in various locations and for different devices.

Moreover, we will soon release our proprietary tool CometWeb Insight – a comprehensive site speed analysis program with practical recommendations for implementation. This solution will allow you not only to identify problems but also to effectively fix them.