Book a Call

SEO Weight Diagram: Understanding On-page and Off-page SEO

Enjoying this article?
Share it on social media!

SEO strategy can be visualized easily with an SEO weight pie chart, where each slice represents a different factor's contribution to overall SEO effectiveness. Let's delve into these factors, understand their weights, and summarise their impact on your SEO efforts.

Content Quality (25%)


High-quality, engaging content is the most significant slice of the SEO pie, making up approximately 25% of overall SEO effectiveness.

  • Summary Points:
    • Original, informative content is key.
    • Relevance to the audience boosts engagement and retention.
  • SEO Weights:
    • Originality: 25%

Backlinks (20%)

The quantity and quality of backlinks to your website account for about 20% of your SEO score, signaling trust and authority to search engines.

  • Summary Points:
    • Prioritize high-quality, relevant backlinks.
    • Avoid low-quality or spammy links.
  • SEO Weights:
    • Quality of backlinks: 20%

Keywords Optimization (15%)

Strategic use of keywords contributes approximately 15% to the SEO pie, highlighting the importance of understanding and matching user search intent.

  • Summary Points:
    • Use keywords naturally and avoid stuffing.
    • Focus on long-tail keywords for better targeting.
  • SEO Weights:
    • Keyword relevance and placement: 15%

Mobile Optimization (15%)

As mobile browsing prevails, mobile optimization's contribution to SEO effectiveness is about 15%.

  • Summary Points:
    • Ensure your site is responsive on all devices.
    • Optimize for mobile speed and user experience.
  • SEO Weights:
    • Mobile friendliness: 15%

Page Speed (10%)

Page speed affects user experience and rankings, making up 10% of the SEO pie.

  • Summary Points:
    • Optimize images and files to reduce load times.
    • Leverage browser caching and optimize server response time.
  • SEO Weights:
    • Load times: 10%

User Experience (UX) (10%)

UX contributes to 10% of the SEO weight, emphasizing the need for a site that is easy to navigate and engage with.

  • Summary Points:
    • Focus on intuitive navigation and accessibility.
    • Improve site structure and page layout.
  • SEO Weights:
    • Navigation and accessibility: 10%

Social Signals (5%)

Although a smaller slice, social signals account for around 5% of SEO effectiveness, reflecting the impact of social media interactions on SEO.

  • Summary Points:
    • Engage with your audience on social platforms.
    • Share valuable content to generate likes, shares, and comments.
  • SEO Weights:
    • Social media engagement: 5%

Why Other Models May Show Different Weights:

  1. Evolving SEO Landscape: SEO is dynamic, with search engines continually updating their algorithms. This means the impact of various factors can change over time.
  2. Diverse Methodologies: Different studies or analyses may use varied methodologies to determine the impact of SEO factors. Some may conduct empirical research, while others might rely on surveys of SEO professionals or case studies.
  3. Industry-Specific Factors: The importance of specific SEO factors can vary greatly depending on the industry, the type of content, and the audience. What works well for one website or sector might not be as effective for another.
  4. Off-Page SEO Significance: Recent trends and studies have suggested that off-page factors, especially backlinks, play a significant role in SEO, possibly accounting for as much as 50-60% of overall effectiveness. This reflects the importance of a website's authority, trust, and social validation in determining its search engine ranking.
  5. Balancing Act: While on-page SEO factors are crucial for ensuring that content is relevant, accessible, and of high quality, off-page SEO factors like backlinks and social signals serve as endorsements of a website's credibility and value. The exact weightage can vary depending on the competitive landscape and specific goals of an SEO strategy.

Overall Weights for On-page and Off-page SEO


On-Page SEO (Estimated 30-40%)

On-page SEO includes all the measures that can be taken directly within the website to improve its position in the search rankings. This includes content quality, keyword optimization, meta tags, headers, URL structure, and site speed.

Off-Page SEO (Estimated 60-70%)

Off-page SEO involves all activities outside the website to improve its search ranking. The most significant factors here are backlinks, social signals, and other external factors.

These estimates reflect a consensus that off-page SEO, particularly backlinks, plays a more substantial role in determining a website's rank than on-page factors. The rationale is that while on-page optimization is entirely under the site owner's control and can be seen as an essential requirement, off-page SEO represents external validation, which search engines value highly for determining a site's authority and relevance.

The balance can shift based on the specific competitive landscape of a given search query, the current state of a website's SEO, and ongoing updates to search engine algorithms. Therefore, these percentages should serve as a guideline rather than a fixed rule. On-page and off-page SEO are crucial for a successful SEO strategy, and neglecting either can hinder a website's potential to rank well.

For the most current insights and data-driven recommendations, it's essential to stay informed with the latest from reputable sources like Moz, Search Engine Land, and Ahrefs. These platforms frequently update their guidelines and findings based on evolving SEO trends and search engine algorithms.


The initial percentages provided were meant to simplify the complex nature of SEO for explanatory purposes. In practice, the exact contribution of on-page versus off-page SEO factors is subject to ongoing debate. It can vary widely based on numerous variables, including changes in search engine algorithms, the competitive environment of specific niches, and the strategies of individual websites.

Enjoyed this article?
Share it on social media!

Leave a Reply

Check out another blog post!

Back to all Blog posts

Let’s work together!

© 2024 Bright Vessel. All rights reserved.
Malcare WordPress Security