ONPAGE · SEO GLOSSARY
Keyword Difficulty
A metric (0–100) that estimates how hard it is to rank on the first page for a given keyword — based on the strength of the pages currently ranking for it.
Definition
Keyword difficulty (KD) is a score used in SEO tools (Ahrefs, Moz, Semrush, Serpstat) to estimate how competitive a keyword is to rank for organically. Higher scores mean stronger competition. The metric is typically calculated by analysing the backlink profiles of the pages currently ranking in the top 10 for that keyword — if the top-ranking pages have hundreds of referring domains from high-authority sites, the keyword is difficult to displace. Different tools calculate KD differently, so scores aren't comparable across platforms — an Ahrefs KD of 40 isn't the same as a Moz KD of 40. The score is also a simplification: keyword difficulty doesn't account for content quality gaps, featured snippet eligibility, or the fact that niche topical authority can allow a lower-DA site to outrank high-DA sites on specific subtopics.
Why it matters for SEO
Keyword difficulty helps prioritise which keywords to target first, especially for newer sites with limited domain authority. A site with DR 20 targeting KD 80 keywords will struggle for years; the same site targeting KD 15–30 keywords in its niche can rank within months and build the topical authority needed to later compete on harder terms. The practical strategy: start with long-tail, lower-difficulty keywords that your current domain strength can compete for; use the traffic and links they generate to build the authority needed for harder terms. Ignoring keyword difficulty means wasting content budget on articles that won't rank for years, if ever.
How DeepSEOAnalysis checks this
The audit doesn't directly measure keyword difficulty — that requires a keyword database with SERP data. When GSC is connected, the audit surfaces existing queries where the site ranks in positions 4–20 (striking distance) — these are queries where incremental content improvement, better internal linking, or additional backlinks may move the page into the top 3. These striking-distance opportunities are typically lower-difficulty wins because the site is already demonstrating some relevance.
Useful tools and resources
GLOSSARY
Related terms
onpage
Keyword Research
The process of identifying the specific queries your target audience uses in search — to guide content creation, page optimisation, and site architecture decisions.
Read definition →onpage
Long-Tail Keyword
A specific, multi-word search query with lower search volume but higher intent and less competition than broad head terms.
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Search Volume
The average number of times a keyword is searched per month — used to estimate a keyword's traffic potential and prioritise which queries to target.
Read definition →links
Topical Authority
A site's perceived depth of expertise in a subject area, built by covering a topic comprehensively rather than by accumulating generic backlinks.
Read definition →technical
Rank Tracking
Monitoring keyword positions in search results over time to measure SEO progress, detect ranking drops, and identify which pages are gaining or losing visibility.
Read definition →See how your site scores on Keyword Difficulty.
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