- October 21, 2023
- Core Web Vitals
Are you looking to learn how image sizing can help improve your core web vitals scores? It’s not as complicated as you may think. With the right techniques and tools, you can optimise your website’s performance and get the best possible scores. In this article, we’ll discuss the importance of image sizing, and how it can help you improve your core web vitals scores.
- Estimating file size and optimising image dimensions and size are essential for optimising Core Web Vitals scores.
- Choosing the right compression techniques and storing images appropriately are important for image optimisation and Core Web Vitals.
- Proper compression can significantly reduce image size without sacrificing quality.
- Monitoring website performance and measuring the impact of image size changes is crucial for optimising Core Web Vitals scores.
Understanding Core Web Vitals
Understanding Core Web Vitals can be a daunting task; however, it is important to understand the basics to help optimise your website for users. Core Web Vitals are a set of metrics that measure the user experience when accessing a website. These metrics include: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). LCP measures loading performance, FID measures interactivity, and CLS measures visual stability. Each of these metrics helps to evaluate how quickly a website loads, how responsive it is, and how stable it is for users.
Google uses Core Web Vitals to assess the quality of a website, and also uses them to rank websites in search engine results. The better the Core Web Vitals, the higher the website will be ranked. So, it is important to ensure that the Core Web Vitals of a website are in optimal condition to maximise its ranking in search engine results. Optimising the Core Web Vitals of a website can also lead to increased user engagement, and improved user experience.
Image sizing can play an important role in optimising Core Web Vitals scores. Image size can affect the loading time of a website, which can have an impact on the LCP score. If images are too large, they can slow down the loading time of a website, which can result in a lower LCP score. Similarly, if images are too small, the website will appear pixelated, which can have a negative impact on the user experience.
Therefore, image sizing plays an important role in optimising Core Web Vitals scores. It is important to ensure that the images used on a website are the correct size and resolution to ensure optimal loading times and improved user experience.
Estimating File Size
By estimating the file size of images, you can ensure that they are the right size and resolution for optimal loading times and improved user experience. Here are three tips to help you get started:
- Use a compression tool to reduce the size of your images without sacrificing quality.
- Adjust the resolution of your images to match the size of the display device.
- Utilise CSS or HTML attributes to control the width and height of the image.
Estimating file size is an essential step in the process of optimising Core Web Vitals. Compression tools, such as TinyPNG or Kraken.io, use algorithms to reduce the file size of images without distorting the quality of the image. By adjusting the resolution of the image to the size of the display device, you can ensure the image is served in the best format and size for the user’s device. Additionally, using CSS or HTML attributes to control the width and height of the image can also reduce file size and load time.
Knowing the file size and attributes of your images will allow you to optimise them to improve your Core Web Vitals scores. By implementing the tips above, you can ensure that your images are the right size and resolution for optimal loading times and improved user experience.
Dimensions and Size
Once you have estimated the file size of your images, the next step is to consider their dimensions and size. The dimensions of an image refer to the width and height in pixels. It’s important to make sure the dimensions of an image are appropriate for the space they are occupying. If the image is too small, it will appear pixelated and lack clarity. On the other hand, if the image is too large, it will take longer to download and negatively affect your Core Web Vitals scores.
In addition to the dimensions of the image, size also plays a role in Core Web Vitals scores. The size of an image is determined by the total number of bytes that it takes up. The total size includes the dimensions of the image as well as the quality level. Therefore, it is important to optimise the size and quality of an image to ensure it is not too large to download.
Optimising the size and quality of an image should be done with the help of an image compressor. An image compressor can help reduce the file size of an image without compromising its quality. This will help ensure that the image can be quickly downloaded and improve your Core Web Vitals scores.
It is also important to note that some image formats like PNG and GIF are not as compressible as others. If an image is a PNG or GIF, you may want to consider converting it to a more compressible format such as JPEG or WebP. This will help reduce the file size of the image and improve your Core Web Vitals scores.
Using certain compression techniques, you can further reduce the file size of an image and optimise your Core Web Vitals scores. Here are three of the most popular methods:
- Lossy Compression: Lossy compression is ideal for reducing the size of images without compromising on quality. This method works by reducing the number of colours in the image, which results in a smaller file size.
- Lossless Compression: Lossless compression is the opposite of lossy compression. It works by removing the redundant information from the image, which reduces the size without changing the quality of the image.
- Vector Compression: Vector compression is the most efficient way to reduce the size of an image. This method works by representing the image as a set of mathematical equations and formulas, which helps to reduce the size of the image significantly.
These compression techniques can help you reduce the size of an image and optimise your Core Web Vitals scores. To make sure that your images are as optimised as possible, it is important to use the right compression technique for the type of image you are working with. If done correctly, you can significantly reduce the size of an image without sacrificing its quality.
In addition to using compression techniques, another important factor to consider when optimising Core Web Vitals scores is how you store your images. Finding the best way to store images for your website can be a tricky task, but it is critical to ensuring the best possible user experience. By investing the time to understand the different options available, you can make sure that your images are stored in a way that is optimised for your website and Core Web Vitals.
The two primary options for storing images are on-site or off-site. On-site storage is when all images are stored within the same hosting environment as the website itself. This offers the benefit of less latency, as images are already stored in close proximity to your website. However, on-site storage can take up a lot of space, which can be costly if you have a large number of images.
Off-site storage is when images are stored in an external storage location. This can be a content delivery network (CDN) or third-party cloud storage. The main benefit of off-site storage is that it can reduce latency, as images are stored in multiple locations worldwide. Additionally, if you use a CDN, it can be beneficial for images that are hosted in multiple locations, as it can help reduce the load on your website’s server.
Regardless of the option you choose, it’s important to optimise your images before they’re stored. This means using the proper format, compression, and size. If you’re not sure which option is best for your website, it’s always best to consult with a professional who can advise you on the best choice for your needs. Once you have optimised your images and chosen the best storage option, you’ll be on your way to improving your Core Web Vitals scores.
Now that you have chosen the right storage option for your images, the next step is to understand the different image formats and choose the best one for your website. There are three main image formats for web use: JPEG, PNG and GIF.
- JPEG: This is the most common image format used on web pages. It is a lossy format meaning that when saving, some image data is lost, resulting in smaller file sizes. This makes JPEGs ideal for smaller images such as profile pictures or thumbnails.
- PNG: This image format is lossless meaning that there is no image data lost when saving, resulting in larger file sizes. This makes PNGs the ideal choice for larger images.
- GIF: This image format is used for small animations and images with fewer than 256 colours. It is not recommended for photos or pictures with complex colours.
When choosing the image format for your website, it is important to consider the size of the image and the type of image. JPEGs are the best for smaller images and PNGs are best for larger images. When it comes to optimising Core Web Vitals scores, the smaller the file size, the better. Therefore, it is important to choose the correct image format and compress the image to reduce its file size.
By compressing images and ensuring they are the correct size, you can optimise the performance of your website and improve Core Web Vitals scores. This is especially important, as a website’s performance directly affects its ranking in search engine results. To maximise performance, images should be compressed and resized to the exact dimensions needed for the page. Doing so reduces the file size and prevents images from taking up too much bandwidth. Additionally, images should be saved in the right format. For example, photographs should be saved as JPEGs, while logos should be saved as PNGs. This ensures the image is of the highest quality while keeping the file size as low as possible.
When compressing images, it’s important to find the right balance between quality and file size. Compressing the image too much will result in a noticeable decrease in quality, while compressing it too little will leave the file size unnecessarily large. Additionally, you should check the image’s dimensions and resize them if needed. An oversized image will take longer to load, which can negatively impact performance. On the other hand, an undersized image will look pixelated, again impacting quality.
Measuring the improvement of Core Web Vitals scores requires consistent monitoring. To ensure that your website is performing at its best, it’s important to measure the success of any changes you make. Here are three key steps you can take to measure the impact of image sizing on Core Web Vitals scores:
- Track the loading speed of the page: Use a web page speed test tool to measure the page loading time before and after making changes to your image sizes. This will allow you to compare the loading times of the page and determine how much improvement has been made.
- Monitor the scores of Core Web Vitals: Using a web page speed test tool, you can also track the Core Web Vitals scores before and after making changes to image sizes. This will give you an indication of how effective your image optimisation has been.
- Review the overall impact on user experience: Last but not least, review how your changes have impacted the overall user experience. For example, are users able to access content more quickly? Are they able to interact with the page more easily? This will help you determine the effectiveness of your optimisation efforts.
Image sizing is an important part of optimising your website’s core web vitals scores. Estimating file sizes, understanding dimensions and size, utilising compression techniques, and storing images in the right format are all key components of improving performance. With a little effort, you can make the necessary tweaks to your website and measure the improvement in your core web vitals.
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