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Must know Image Optimization tips

Started by grofee, December 29, 2022, 02:10:50 PM


Must know Image Optimization tips:
1. Name your images descriptively and in plain language.
2. Optimize your alt attributes carefully.
3. Choose your image dimensions and product angles wisely.
4. Reduce the file size of your images.
5. Choose the right file type.
6. Optimize your thumbnails.
7. Use image sitemaps.
8. Beware of decorative images.
9. Use caution when using content delivery networks (CDNs).
10. Test your images.


Image optimization is crucial for improving website performance, user experience, and search engine rankings. Here are some must-know image optimization tips:

Choose the Right Image Format:

Use the appropriate image format for your needs. For photographs and images with many colors, use JPEG. For images with transparency or sharp edges (e.g., logos), use PNG. For illustrations and icons, consider SVG (Scalable Vector Graphics) for its scalability and small file size.
Resize Images for the Web:

Resize images to the exact dimensions needed on your website. Avoid using oversized images and then resizing them using HTML or CSS, as this can slow down your site.
Compress Images:

Compress your images to reduce file sizes without significant loss of quality. Use tools like Photoshop, online image compressors (e.g., TinyPNG, ImageOptim), or plugins for content management systems (e.g., WP Smush for WordPress).
Optimize Image Alt Text:

Add descriptive and relevant alt text to your images. Alt text serves as a textual alternative for screen readers and search engines. It should describe the image's content or function.
Use Lazy Loading:

Implement lazy loading for images, which loads images only when they enter the user's viewport. This reduces initial page load times, especially for long pages with numerous images. Many content management systems and frameworks offer lazy loading plugins or built-in functionality.
Enable Browser Caching:

Leverage browser caching to store images in a user's browser for faster loading on subsequent visits. You can configure caching in your server settings or use caching plugins.
Consider Responsive Images:

Implement responsive images that adapt to different screen sizes and resolutions. Use the srcset and sizes attributes in HTML to provide multiple image versions for various viewport sizes.
Reduce Unnecessary Image Elements:

Remove unnecessary image elements such as metadata, comments, and color profiles, which can add to file size. Image optimization tools often have options to strip this data.
Use Image CDNs:

Consider using Content Delivery Networks (CDNs) specialized in delivering images. CDNs can distribute images across multiple servers globally, reducing server load and speeding up image delivery.
Optimize Thumbnails and Icons:

Optimize thumbnails, icons, and small images separately, as they may require different compression settings. High-quality thumbnails can enhance user experience.
Image Compression Formats:

For JPEG images, adjust the compression level based on the desired balance between quality and file size. For PNG images, use tools that optimize for minimal file size.
Monitor Performance:

Regularly monitor your website's performance using tools like Google PageSpeed Insights or GTmetrix. These tools provide recommendations for improving image optimization and overall website speed.
Consider Image Sprites:

For websites with multiple small icons and images, use image sprites. An image sprite is a single image containing all the small images, reducing the number of server requests.
Use Image Sitemaps:

Create an image sitemap and submit it to search engines. Image sitemaps can improve the visibility of your images in search engine image results.

Ensure that your images are accessible to all users. Test your website with screen readers and verify that alt text and other accessibility attributes are correctly implemented.
Optimizing your website's images not only improves loading times and user experience but also positively impacts SEO, as search engines consider page speed and user experience when ranking websites. Therefore, investing in image optimization is essential for a successful online presence.


Use image sitemaps
Choose the right image format
Compress images
Beware of decorative images
Optimize alt text
Add image structured data
Optimise for web
Optimize the image title
Use unique images