Image and asset optimization in No-Code - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is image optimization?

Image optimization means making image files smaller in size without losing much quality. This helps websites load faster and saves data.

beginner

Name two common image file formats used on the web.

JPEG and PNG are two common image formats. JPEG is good for photos, PNG is good for images with transparent backgrounds.

beginner

Why should you optimize assets like images and videos on a website?

Optimizing assets reduces loading time, improves user experience, and can help with search engine rankings.

intermediate

What is lazy loading in asset optimization?

Lazy loading means loading images or videos only when they are about to appear on the screen. This saves data and speeds up the initial page load.

intermediate

How does using modern image formats like WebP help in optimization?

WebP images are smaller in size but keep good quality. Using them reduces file size and speeds up website loading.

Which image format is best for photos with many colors?

A JPEG

B PNG

C GIF

D SVG

JPEG compresses photos well and supports many colors, making it ideal for photos.

What does lazy loading do?

A Loads all images immediately

B Converts images to text

C Loads images only when needed

D Deletes images after loading

Lazy loading delays loading images until they are about to be seen, saving data and speeding up loading.

Why is image optimization important for websites?

A To improve loading speed and user experience

B To slow down the website

C To make images bigger

D To remove images

Optimizing images helps websites load faster and gives users a better experience.

Which format supports transparent backgrounds?

A JPEG

B TIFF

C BMP

D PNG

PNG supports transparent backgrounds, making it useful for logos and icons.

What is a benefit of using WebP images?

A They are larger files

B They are smaller files with good quality

C They have poor quality

D They only work on old browsers

WebP images are smaller but keep good quality, helping websites load faster.

Explain why image and asset optimization is important for websites.

Think about how faster loading affects visitors and search engines.

Describe two techniques used to optimize images on websites.

Consider ways to reduce file size and delay loading.