What is On-Page SEO and why is it important?

On-Page SEO is a key component to helping your website rank higher on Google and other search engines. Properly optimized On-Page SEO can help your website be of higher quality and increase the chances of your content being found by more visitors.

In this article, we will walk you through effective On-Page SEO optimization.

1. Keyword Selection and Use (Keyword Optimization)

Keywords are words or phrases that users type into Google to search for information. Choosing the right keywords can help your website meet the needs of your target audience.

Guidelines for using good keywords:

Use primary keywords in Title Tag, Meta Description, URL and Headings (H1, H2, H3).
Distribute keywords naturally in the content. Avoid keyword stuffing.
Use LSI Keywords or related keywords to increase variety.

2. Writing Title Tag and Meta Description

Title Tag is the title that appears in the search results. It should be interesting and attract people to click and read.

Tips for writing a good Title Tag:

The main keyword should be in the beginning.
Use click-through keywords like “how to,” “tips,” “best.”
Limit length to no more than 60 characters for full display.

Meta Description is a content description that helps increase click-through rate (CTR).

Guidelines for writing Meta Description:

Write concisely (about 150-160 characters).
Use language that is readable and stimulating.
Infiltrate directly

3. SEO-friendly URL structure

A good URL should be short, descriptive, and include keywords such as:

❌ Bad example:
www.example.com/p=12345

✅ Good example:
www.example.com/seo-on-page-tips

Tips:

Avoid using numbers or special characters.
Use the hyphen (-) instead of the underscore (_).

4. Correct use of Header Tags (H1-H6)

Header Tags help clarify the content structure and help Google understand the main topic of a web page.

Proper use:

H1: Used for the article title (should be only one)
H2, H3, H4: Used to divide subheadings to make content easy to read.

5. Image Optimization

Google can't read images directly. Adding Alt Text or image descriptions helps Google understand the content and also helps your image rank higher on Google Images.

Good approach:

Use small image files to avoid slow website loading.
Use a descriptive file name, such as seo-on-page-tips.jpg instead of image123.jpg.
Include alt text that describes the image and includes relevant keywords.

6. Improve website loading speed (Page Speed Optimization)

Slow loading websites hurt user experience and SEO rankings.

Tips to speed up your website:

Reduce the image size (use WebP or JPEG)
Use a cache to make your website load faster.
Reduce the number of unnecessary plugins (for WordPress)
Use CDN (Content Delivery Network)

7. Creating Internal Links and External Links

Internal Links are links to other pages within your own website that help Google understand your site structure and increase the time users spend on the site.

External Links are links to other quality websites that help increase the credibility of your content.

Good approach:

Use relevant links and help readers benefit.
Use natural anchor text, such as “Read more about On-Page SEO.”

8. Mobile-Friendly and UX Optimization

Google prioritizes Mobile-Friendly Websites because most users now come from smartphones.

Use Responsive Design to make your website adapt to different screen sizes.
Use easy-to-read buttons and fonts on mobile.
Avoid pop-ups that annoy users

summarize

On-Page SEO optimization is a key factor in helping your website rank better in Google. Using the right keywords, improving site structure, increasing speed, and creating quality content are all factors that contribute to a website's success.

Written by: Written by: Yossapon Plodwong
Publication Date: March 31, 2025