Many companies do not pay much attention to the page loading speed of their official website in the early stage of website construction. Most of them rely on third-party website construction agencies to build a brand website. If you encounter a good SEO website construction agency, they will consider the page loading speed from the SEO perspective and improve the performance of the brand website through SEO optimization techniques. However, such agencies are in the minority and basically only do what they are paid for.

Some organizations even directly copy a template from another official website online and apply it directly, which results in slow page loading speed. It takes 5-10 seconds to open a page, which greatly affects the user’s browsing experience. So how should we deal with and discover such problems when the page loading speed is too slow?

Next, from the perspective of SEO, I will share with you how to diagnose the speed of the official website and how to deal with the problem of the speed of the official website.

Why is the loading speed of a website important for SEO?

The first thing we need to understand is why the loading speed of a website is so important for SEO? We need to understand that search engines tend to rank websites with fast loading speeds at the top, and fast websites can also provide a better user experience, effectively improving the click-through rate and retention rate of the website.

So how to diagnose the speed of the official website? Here we need to use a speed evaluation tool (https://gtmetrix.com/). Take https://www.ggseo.com/ as an example, as shown below:

From the above picture, we can see that the overall score of the official website https://www.ggseo.com/ is B (Gtmetrix scores are from A to Z, and the scores are ranked in positive order. The later the letters are, the worse the scores are). The overall page loading speed is 3.5s, which is within the normal response speed range of page SEO.

Through the Gtmetrix tool, we can clearly know the current crawling speed of the website and some factors that affect the slow page crawling. We can clearly understand whether it is a CSS problem or a jpg problem. We can also optimize the official website based on some diagnostic suggestions provided by Gtmetrix.

So how to optimize the website and improve the website response speed based on the problems found by Gtmetrix?

1. Optimize based on Gtmetrix feedback

According to the priority of the items that affect the page loading speed on the left and the KB size of the page on the right, appropriate optimization is carried out, and some of the reasons that affect the loading speed are investigated and analyzed to solve the problems that affect the page loading.

2. Image compression optimization

• Compress images: Use professional image compression tools (such as TinyPNG, JPEG-Optimizer) to reduce image file size while maintaining image quality.
• Choose the appropriate image format: Choose the best image format (JPEG, PNG, SVG, etc.) based on the image content and purpose to balance quality and size.
• Use CDN to accelerate image loading: Content distribution network (CDN) can shorten the loading time of static resources such as images and improve the overall performance of the website.

3. Streamline and optimize code

• Compress CSS, JavaScript, and HTML: Use tools (such as UglifyJS, CSSNano) to compress code, reduce file size, and speed up loading.
• Merge files: Merge multiple CSS or JavaScript files into one to reduce the number of HTTP requests.
• Asynchronously load JavaScript: Set non-critical JavaScript code to asynchronous loading to avoid blocking page rendering.

4. Use caching technology

• Browser caching: By configuring server header information (such as Cache-Control, Expires), let the browser cache static resources to reduce repeated loading.
• Server caching: Use server caching technology (such as Varnish, Redis) to cache dynamic content and improve response speed.

5. Choose an efficient server and hosting solution

• High-performance server: Choose a server with high configuration and sufficient bandwidth to ensure that the website can run smoothly under high concurrency.
• High-quality hosting service: Choose a provider that provides high-performance, high-reliability and high-scalability hosting services, such as ECOMMA, AWS, Google Cloud Platform, etc.

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