Rankfill

Check SERP Competition Before Choosing What to Publish

You spent three hours writing an article. Published it. Waited. Six months later it sits on page four with zero clicks. You go back and search the keyword yourself — and the first page is dominated by Healthline, Forbes, and a Wikipedia entry that's been there since 2009.

That's not a content quality problem. That's a targeting problem. You picked a fight you couldn't win before you wrote a single word.

Checking SERP competition before you publish is the step that separates writers who get traffic from writers who wonder why nobody shows up.

Here's how to do it properly.

What "SERP competition" actually means

SERP competition is not a single number. It's a picture of how hard it will be for your specific site to rank on page one for a specific keyword.

Most keyword tools give you a difficulty score — usually a number from 0 to 100. That number is useful as a rough filter, but it's not the full picture. A keyword with difficulty 45 might be unwinnable for a three-month-old blog, but totally achievable for a site with two years of topical authority in that niche.

What you actually need to assess:

Step 1: Search the keyword in a private/incognito window

Open an incognito window and search the keyword exactly as your target reader would type it. This removes personalization from the results.

What you're looking for on the first page:

A page full of Forbes and WebMD results for an informational health keyword is a warning. A page with two niche blogs, a Reddit thread, and one mid-size publication is an opening.

Step 2: Check the domain authority of each result

You don't need a paid tool for this. The Moz Domain Authority checker (free), Ahrefs' free SERP overview, or Semrush's free daily lookups all let you pull authority scores for the pages ranking.

What you're assessing: if most results come from domains with DA 70+, and your site is a DA 28, you have an authority gap that content quality alone won't close. If several results come from DA 20–45 sites, you are in the same weight class.

This is covered in more depth in SERP Metrics Explained: What to Track and What to Ignore — including which metrics are actually predictive versus which ones tools use mainly to sell upgrades.

Step 3: Read the top three results

This step gets skipped constantly, which is why so much published content never ranks.

Open the top three results and read them. Ask:

An outdated article with thin coverage on a topic you can write about authoritatively is an opportunity. A 5,000-word cornerstone piece from a domain with massive authority and thousands of backlinks pointing at it is not something you displace by publishing a better article.

Step 4: Check the search intent carefully

This is where a lot of people misread competition. They look at domain authority scores and assume that's the only barrier. But if the intent of the top results doesn't match the format you're planning to build, you're fighting on two fronts.

If someone searches "check SERP competition" and the top results are all practical how-to guides, but you publish a definitional explainer — you're not competing with those results, you're just absent from the conversation.

Matching format and depth to what Google has already decided belongs on page one is not copying the competition. It's understanding the assignment.

For a deeper look at reading SERP results to find where you can actually insert yourself, SERP Analysis: How to Read Results and Find Opportunities walks through the full process.

Step 5: Look at the weakest result on page one

Find the result in positions 7–10. This is your real benchmark, not position one.

Ask: can I build something meaningfully better than this, with the domain authority I have right now?

If the answer is yes — the piece is thin, the site is small, the content is outdated — you have a realistic path. If even the weakest result is a comprehensive resource from a high-authority site, the keyword probably isn't worth targeting at your current stage.

When keyword difficulty scores mislead you

Keyword difficulty scores are calculated mostly from the backlink profiles of pages currently ranking. They don't account for:

A difficulty of 57 means "the pages currently ranking here have strong backlink profiles on average." It does not mean "this keyword is impossible for you." It also doesn't mean it's easy. It means you have to look closer.

This is why manually checking the SERP — not just reading a score — matters. The score is a starting filter. The manual check is the actual decision.

How to make a go/no-go call

After running through the steps above, you need a simple decision framework:

Publish and compete aggressively if:

Deprioritize or find a variant if:

Look for a related keyword with lower competition if:

This is exactly the kind of SERP competitor analysis that, done systematically across your whole content plan, changes what you publish and how fast you see returns.

Doing this at scale

Checking one keyword manually takes maybe 10–15 minutes when you know what you're looking at. That's fine for individual decisions. When you're building out a content plan across dozens or hundreds of keywords, doing it keyword by keyword gets unmanageable fast.

At that point, tools that map your competitive landscape in bulk — showing you which keywords your competitors rank for that you don't, and scoring the gaps — become worth the time. Rankfill is one option here: it maps the full competitive gap between your site and your competitors and shows you estimated traffic potential by opportunity, which gives you the same picture you'd build manually but across your whole market at once.

For a systematic approach to finding what's ranking on page one across your niche before building out a content calendar, that kind of bulk view saves time and surfaces opportunities you'd miss doing it one query at a time.

FAQ

What's a "good" keyword difficulty score for a new site? Under 30 is generally where a newer site can realistically compete. But the number alone isn't enough — you still need to check whether the pages ranking at that difficulty score are from comparable domains. A difficulty of 25 with Reddit and niche forums on page one is very different from difficulty 25 with established editorial sites.

Do I need a paid tool to check SERP competition? No. You can do most of this manually: incognito search, free DA checkers, and reading the top results yourself. Paid tools speed up the process and add data like backlink counts and traffic estimates, but the core judgment calls are ones you make by looking at the actual SERP.

What if the top results are Reddit threads or forums? That's usually a signal that Google hasn't found a strong editorial answer yet. It can be an opportunity — but only if you can produce something more authoritative than what's there. Forum-dominated SERPs are increasingly harder to displace as Google has leaned into surfacing community content.

Should I avoid competitive keywords entirely? Not necessarily. High-competition keywords often have the highest traffic potential. A better approach is to target them with supporting content — related long-tail terms that build topical authority — before going after the head term directly.

How often do SERP results change? More than most people expect. A check you did six months ago may not reflect today's page one. Before committing to writing a piece, check the current SERP. Algorithm updates, new entrants, and content refreshes by competitors all shift rankings regularly.

What's the difference between keyword difficulty and SERP competition? Keyword difficulty is a calculated score from a tool, based mostly on backlinks. SERP competition is the full picture — including content quality, intent match, domain authority of specific results, and your site's relative position. Difficulty is one input into assessing SERP competition, not the whole answer.