Day 8 – Optimize Images (Step-by-Step Guide)

 

Week 2: SEO Implementation

Day 8 – Optimize Images (Step-by-Step Guide)

The purpose of Day 8 is to optimize all website images so they load faster, improve SEO, and make the website more accessible. Search engines cannot "see" images like humans do, so image optimization helps Google understand what each image represents.


Step 1: Identify Website Images

What are you doing?

Finding all the images used on the homepage and service pages.

Tool

Using WordPress Media Library – View and manage all website images.

How to Access

  1. Log in to WordPress.

  2. Click Media.

  3. Click Library.

Open:

https://yourwebsite.com/wp-admin

Replace yourwebsite.com with your client's website.

Free or Paid: ✅ Free (included with WordPress).

Tasks

Check images on:

  • Homepage

  • About Page

  • Services Page

  • Blog

  • Contact Page

Record:

  • Image name

  • File size

  • Page used


Step 2: Rename Images

What are you doing?

Giving each image a descriptive filename before uploading it.

Why?

Google reads image filenames to understand the image.


Bad Examples

IMG001.jpg

photo.png

image1.jpg

Screenshot2026.png

Good Examples

root-learning-online-tutoring.jpg

math-tutor-helping-student.jpg

online-reading-class.jpg

science-tutoring-session.jpg

Rules

  • Use lowercase letters.

  • Separate words with hyphens (-).

  • Avoid spaces and special characters.

  • Include the page's main keyword if appropriate.


Step 3: Compress Images

What are you doing?

Reducing the image file size without noticeably reducing quality.

Smaller images help pages load faster.


Tool

Using TinyPNG – Compress PNG, JPEG, and WebP images.

How to Access: TinyPNG

Free or Paid:

  • ✅ Free for standard use.

  • ⭐ Paid plans available for higher usage and API access.

Steps

  1. Open TinyPNG.

  2. Drag and drop the image.

  3. Wait for compression.

  4. Download the optimized image.


Example

Before

student-learning.jpg

Size: 4.5 MB

After

student-learning.jpg

Size: 650 KB

The image quality looks almost the same but loads much faster.


Step 4: Convert Images (Optional)

What are you doing?

Converting images into modern formats that load faster.

Tool

Using Squoosh – Compress, resize, and convert images.

How to Access: Squoosh

Free or Paid: ✅ Completely Free.

Steps

  1. Open Squoosh.

  2. Upload the image.

  3. Compare the original and optimized versions.

  4. Choose a format such as:

    • WebP

    • AVIF

  5. Download the optimized image.


Why?

Modern formats like WebP and AVIF are usually smaller than JPEG or PNG while maintaining good image quality. Ensure the website supports these formats before replacing existing images.


Step 5: Upload Optimized Images

What are you doing?

Replacing old images with optimized versions.

Tool

Using WordPress Media Library – Upload optimized images.

Steps

  1. Go to Media.

  2. Click Add New Media File.

  3. Upload the optimized image.

  4. Replace the old image on the page if necessary.


Step 6: Add Alt Text

What are you doing?

Writing a short description of each image.

Alt text helps:

  • Search engines understand images.

  • Screen readers describe images to visually impaired users.

  • Images appear in Google Images.


Tool

Using WordPress Media Library – Add alt text.

Steps

  1. Open the uploaded image.

  2. Find the Alternative Text (Alt Text) field.

  3. Write a clear description.


Bad Example

image

Bad Example

photo123

Good Example

Child participating in an online tutoring session with a certified teacher.

Another Example

Image

math-tutor-helping-student.webp

Alt Text

Certified online math tutor helping a primary school student solve equations.

Tips

  • Describe what is actually shown in the image.

  • Use the page's keyword naturally when relevant.

  • Keep it concise.

  • Do not stuff keywords.


Step 7: Check Image Dimensions

What are you doing?

Making sure images are not larger than needed.

Why?

Uploading a 4000 × 3000 pixel image for a small website thumbnail wastes bandwidth and slows the page.

Example

Large Banner

1920 × 1080

Small Thumbnail

300 × 300

Resize images before uploading if they are much larger than required.


Step 8: Test Website Speed Again

What are you doing?

Checking whether image optimization improved performance.

Tool

Using Google PageSpeed Insights – Test website speed after optimization.

How to Access: Google PageSpeed Insights

Free or Paid: ✅ Free.

Steps

  1. Open PageSpeed Insights.

  2. Paste the website URL.

  3. Click Analyze.

  4. Compare the new performance score with the previous result.


Step 9: Record Your Work

What are you doing?

Keeping track of all optimized images.

Tool

Using Microsoft Excel or Google Sheets – Create an image optimization log.

How to Access: Google Sheets

Free or Paid: ✅ Free.

Example

ImageRenamedCompressedConvertedAlt Text AddedStatus
Homepage BannerCompleted
Math TutorCompleted
Reading ClassCompleted
Contact ImageCompleted

Best Practices

File Names

✅ Good

online-tutoring-for-children.webp

❌ Bad

IMG001.jpg

Alt Text

✅ Good

Online tutor teaching a primary school student during a live virtual lesson.

❌ Bad

Image

File Size

Try to keep website images as small as possible while maintaining good quality. There isn't one perfect size for every image—hero banners can be larger than icons or thumbnails—but avoiding unnecessarily large files helps improve loading speed.


Deliverables for Day 8

By the end of Day 8, you should have:

  • ✅ All important images renamed with descriptive filenames.

  • ✅ Images compressed to reduce file size.

  • ✅ Images converted to modern formats where appropriate.

  • ✅ Alt text added to every important image.

  • ✅ Images uploaded or replaced in WordPress.

  • ✅ Website speed checked after optimization.

  • ✅ Image optimization tracking sheet.


Final Goal

By the end of Day 8, every important website image should:

  • Have a descriptive filename.

  • Load quickly because it has been optimized.

  • Include meaningful alt text for SEO and accessibility.

  • Display correctly on the website without reducing visual quality.

Optimized images improve page speed, user experience, accessibility, and search engine visibility.

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