Rankfill

Low-Competition Keywords Finder for Faster Rankings

You published an article. You did the research, wrote 1,200 words, added internal links, submitted it to Search Console. Six months later it sits on page four for a keyword with 40,000 monthly searches and a difficulty score of 72.

That's the trap. You aimed at a keyword that looked good in a spreadsheet but was already owned — deeply, historically — by sites with ten times your domain authority. No tool was going to help you rank there in any reasonable timeframe.

Finding low-competition keywords isn't about finding keywords other people missed because they're bad at SEO. It's about understanding what "low competition" actually means for your specific site, and building a process to find those opportunities systematically.

What "Low Competition" Actually Means

Every major keyword tool gives you a difficulty score — Ahrefs calls it KD, Semrush calls it KD too, Moz calls it Keyword Difficulty. They all measure roughly the same thing: how strong the backlink profiles are of the pages currently ranking in the top ten.

Here's the problem: a KD of 25 on Ahrefs is not the same as a KD of 25 on Semrush. The scales aren't calibrated the same way. More importantly, none of them account for your site specifically. A keyword with KD 40 might be genuinely achievable for a DR 60 site and completely out of reach for a DR 20 site.

So "low competition" is relative. Before you go hunting for keywords, establish your baseline: what's your domain rating or authority? What difficulty scores have you actually ranked for in the past? Use your own history as the benchmark, not some abstract threshold.

A general starting point: if your domain is under DR 30, target keywords below KD 20. DR 30-50, you can push to KD 30-35. Above DR 50, KD 40-50 is realistic — though it still depends on the quality of content already ranking there.

The Tools That Actually Find Low-Competition Keywords

Ahrefs Keywords Explorer

Filter by KD under your threshold. Then sort by Traffic Potential, not Volume. Traffic Potential shows you the estimated traffic the top-ranking page gets across all the variations of that keyword — it's a much better signal than the head term volume alone.

One underused filter: "lowest DR." This shows you whether any low-authority pages are already ranking in the top ten. If a DR 15 blog is sitting on page one for a keyword, that's your green light — it tells you the SERPs haven't been locked down by major publishers.

Semrush Keyword Magic Tool

The same logic applies. Filter by KD, then look at the SERP for each result. Don't trust the score alone — open the actual results and check who's ranking. If it's Reddit threads, Quora answers, and thin listicles, there's room to get in with a thorough piece.

Google Search Console (your own data)

This is the most underrated source of low-competition keywords you already have a shot at. Filter your queries for positions 8-20. These are keywords where you're showing up but not ranking well — you have relevance, you just need to strengthen the page. Low-hanging fruit keywords almost always live here first.

Google's autocomplete and "People also ask"

Free, fast, and gives you real query intent. Type your seed keyword and pay attention to the long-tail completions. These are actual searches people are making. Pair them with a quick KD check in any tool and you'll often find pockets of low competition that the bulk-export workflows miss entirely.

The Filter Stack That Works

Don't just filter by difficulty. Run this sequence:

  1. KD under your threshold — eliminates the obvious dead ends
  2. Volume above 100 — anything below this is usually not worth a dedicated page
  3. Traffic Potential above 300 — confirms real traffic exists around the topic cluster
  4. SERP check — look at the actual pages ranking; do they have backlinks, or are they thin?
  5. Searcher intent match — can you genuinely satisfy what this person is looking for?

That fifth filter is where most people skip. If a keyword has KD 15 but the top results are all product pages from e-commerce stores and you're running a SaaS blog, you're fighting intent mismatch, not just competition. You won't rank regardless of difficulty.

Where People Go Wrong With Low-Competition Keyword Finders

Chasing zero-competition keywords exclusively. If competition is truly zero, volume is usually also near zero. Some of these are worth targeting as part of a cluster strategy, but if your whole content plan is built on KD 0-5 keywords with 50 searches/month, you won't move the needle.

Ignoring SERP features. A keyword might show KD 12, but if featured snippets, People Also Ask boxes, and Google Shopping results dominate the page, your organic listing gets pushed below the fold. Low difficulty doesn't mean high visibility.

Not accounting for content depth. Some low-competition keywords are low-competition because nobody has written a genuinely good piece on them. That's the opportunity. But others are low-competition because the search intent is satisfied in ten seconds by a definition or a list — and long-form content won't outrank a simple, direct answer just because it's longer.

Targeting long-tail keywords wrong. Long-tail keywords aren't just "more words" — they represent more specific intent, and that specificity is what makes them convertible. A keyword like "best project management software" is a head term. "Project management software for remote construction teams" is long-tail. The long-tail version has lower competition and higher purchase intent. The mistake is treating them as fillers for a content calendar rather than core conversion targets.

Building a Repeatable Process

One-off keyword research doesn't compound. What compounds is a process you run monthly:

  1. Pull fresh keyword data from your tool of choice using seed keywords from your product, service, or topic area
  2. Apply the filter stack above
  3. Check the SERPs manually for the top 10-15 remaining candidates
  4. Group by topic cluster — don't create one page per keyword; create a pillar page and supporting pieces that reinforce each other
  5. Prioritize by: traffic potential × intent match × your ability to write authoritatively on it

If you're a site with existing domain authority but thin content coverage, the fastest wins come from finding niche keywords your competitors are ranking for that you haven't touched yet. That competitive gap is often larger than people expect, and it's full of keywords your authority would let you rank for with solid content.

Rankfill does this at scale — mapping competitor keyword gaps against your domain and estimating the traffic recoverable if you close them — if you want the analysis done rather than run manually.

FAQ

What's a good KD score to target for a new site? Under KD 20 if your domain rating is below 30. Focus on very specific, question-based queries. Build authority through those wins before moving up in difficulty.

Are there free low-competition keyword finders? Google Search Console, Google autocomplete, and the free tier of Ubersuggest give you a starting point. They're limited in bulk filtering capability, but they're real data. For serious research at volume, a paid tool is worth the cost.

How many low-competition keywords should I target per month? Depends on your publishing capacity. It's better to publish four well-researched pieces on genuinely low-competition terms than twelve thin articles on anything that looks manageable. Quality of execution matters more than output volume.

Do low-competition keywords convert? They convert better than head terms in most cases, because the searcher intent is more specific. Someone searching "accounting software for freelance photographers" is closer to a purchase decision than someone searching "accounting software."

Why does the difficulty score vary so much between tools? Each tool has its own index size, link graph, and scoring algorithm. Treat difficulty scores as relative signals within a single tool, not absolute facts across tools. Always verify with a manual SERP check before committing to a keyword.

Should I target long-tail keywords even if volume is low? Yes — especially in clusters. One page might target a keyword with 200 monthly searches, but it can rank for dozens of related long-tail searches and accumulate meaningful traffic across all of them. Volume on the head term undersells the real opportunity.