Keyword Difficulty

Why does keyword difficulty matter for fitness businesses?

Keyword difficulty helps you prioritise which terms to target based on your site's current authority. If your fitness app has a Domain Rating of 25, targeting keywords with KD scores of 80+ means competing against established sites with far stronger backlink profiles. You'll waste time and resources on keywords you can't realistically rank for.

Understanding KD allows you to find winnable opportunities. Lower-difficulty keywords with decent search volume give newer sites a path to page one without needing years of link building.

Keyword difficulty also informs content strategy. High-KD terms may require comprehensive pillar content, multiple supporting articles, and aggressive link building, while low-KD terms might rank with a single well-optimised page.

What does keyword difficulty look like in practice?

A new gym management platform checks KD scores before creating content. "Gym software" has a KD of 75, dominated by established SaaS companies with DR 60+. Instead, they target "gym check-in software for small studios" with a KD of 28. They publish a focused guide, earn a few relevant backlinks, and rank on page one within three months, driving qualified leads.

How is keyword difficulty calculated?

SEO tools like Ahrefs, SEMrush, and Moz calculate KD primarily based on the backlink profiles of pages currently ranking on page one. If top-ranking pages have hundreds of backlinks from high-authority sites, the keyword gets a high difficulty score.

Other factors include domain authority of ranking sites, content quality and depth, and on-page optimisation. A keyword dominated by DR 70+ sites with 2,000-word guides will score higher than one where DR 30 sites rank with thin content.

Each tool uses slightly different algorithms, so KD scores vary between platforms. A keyword might score 40 on Ahrefs but 55 on SEMrush. Use one tool consistently for comparison.

How do you use keyword difficulty strategically?

To use keyword difficulty strategically:

• Prioritise low-to-medium difficulty keywords with strong search intent and decent volume when building early content
• Use high-difficulty keywords as long-term targets, creating supporting content and building links over time to compete
• Analyse the top 10 results for your target keyword to see if KD accurately reflects competition or if ranking opportunities exist
• Balance difficulty with business value by sometimes targeting harder keywords if they drive high-intent traffic that converts well
• Track how your site performs against different KD levels to calibrate future keyword selection

Questions to ask your agency