Rankfill

Search Volume Check: Validate Keywords Before You Write

You spent two hours writing a piece you were confident about. The topic felt right, the angle was solid, you published it. Three months later it has eleven organic sessions and a bounce rate that makes you feel personally judged.

You go back and check the keyword. Monthly search volume: 10.

That's the mistake. Not the writing. Not the optimization. The keyword was dead before you started, and you never checked.

A search volume check is one step — it takes about three minutes — and it's the difference between writing content that has a ceiling of twelve visitors per month and writing content that can actually compound.

Here's how to do it properly.

What Search Volume Actually Tells You

Search volume is the estimated number of times a keyword is searched per month in a given country. If "project management software" has 90,000 monthly searches in the US, roughly 90,000 people are typing that phrase into Google each month.

It's an estimate, not a census. Every tool pulls from different data sources — clickstream data, Google's own Keyword Planner, autocomplete patterns — so you'll see different numbers in different tools. That's normal. The direction matters more than the exact figure. If one tool shows 1,200 searches and another shows 900, those are both telling you the same story: there's real demand here.

For a deeper look at how these numbers work and what they represent, see Keyword Search Volume: What It Means and How to Use It.

How to Run a Search Volume Check

Option 1: Google Keyword Planner (Free)

Google Keyword Planner is free but requires a Google Ads account. The data is straight from Google, which makes it the most authoritative source — but the numbers are given in ranges ("1K–10K") unless you have an active ad campaign running.

Steps:

  1. Go to ads.google.com → Tools → Keyword Planner
  2. Click "Discover new keywords" or "Get search volume and forecasts"
  3. Paste your keyword(s) and select your target country
  4. Review the Avg. Monthly Searches column

The range problem is real. "1K–10K" is a 10x spread. If precision matters, you need a paid tool.

Option 2: Ahrefs or Semrush

Both give you specific monthly volume numbers, trend data, keyword difficulty, and related keyword suggestions in a single view. Ahrefs shows volume alongside a click rate (because not every search results in a click — especially branded and answer-box queries). Semrush shows volume alongside competitive density and CPC, which helps you gauge commercial intent.

If you're checking more than a handful of keywords regularly, either of these pays for itself quickly in avoided bad bets.

Option 3: Keywords Everywhere (Browser Extension)

Keywords Everywhere shows search volume inline on Google SERPs as you search. You just search normally and volume data appears next to every related keyword suggestion. It's cheap and frictionless for occasional checks. The Keywords Everywhere review here covers what it does well and where it falls short for deeper gap analysis.

Option 4: Google Search Console (For Pages You Already Have)

If you're checking volume for keywords you're already ranking for — not new ones — Google Search Console shows impressions, clicks, and average position. Impressions approximate volume. This is useful for finding pages that rank on page two where a targeted push could move the needle.

What Numbers Should You Actually Target?

There's no universal answer, but here's a practical framework:

Under 100/month — Niche territory. Useful if the intent is highly commercial (someone ready to buy), but don't expect traffic volume. Fine for bottom-of-funnel content.

100–1,000/month — The long-tail sweet spot for most sites. Lower competition, specific intent, faster to rank. A lot of content strategies are built entirely here.

1,000–10,000/month — Worth targeting if you have domain authority and can produce something genuinely better than what's ranking. These keywords take longer.

Above 10,000/month — Competitive. Usually dominated by established players. If you're a new or mid-authority site, you'll spend a long time not ranking while you could have captured twenty 500-volume keywords in the same period.

Volume also needs to be read against difficulty. A keyword with 800 monthly searches and a difficulty of 22 is often a better use of your time than one with 3,000 searches and a difficulty of 78. Difficulty estimates vary by tool but they're a reasonable proxy for how hard it will be to rank on page one.

Trend Data: The Check Most People Skip

Search volume figures are monthly averages, usually over twelve months. Some keywords are seasonal. Some are growing. Some are dying.

Before you commit to a piece, look at the trend line. A keyword averaging 400 searches per month might be:

Ahrefs and Semrush both show trend graphs. Google Trends is free and shows direction clearly, though it doesn't give absolute volume numbers.

If you're investing in a piece that will take significant time, the trend is worth thirty seconds to check.

The Traps to Avoid

Targeting volume without checking intent. A keyword can have 2,000 searches per month and be completely wrong for your content. Search "how to tie a tie" — everyone wants a quick visual tutorial, not a 2,000-word guide. Check the SERP before you write to understand what Google thinks the searcher wants.

Only checking the head term. If you're writing about "CRM software for small business," also check related variants: "best CRM for small business," "CRM tools for small teams," "affordable CRM small business." Sometimes the variant has five times the volume. You want to know this before you choose your H1.

Ignoring zero-volume keywords entirely. Zero volume in a tool doesn't mean zero searches. It means the tool doesn't have enough data. Niche B2B terms, emerging topics, and very specific long-tail phrases regularly drive real traffic despite showing 0 in Keyword Planner. If the term makes logical sense and your competitors are writing about it, it's worth considering.

Checking once and never again. Search volume shifts. A keyword that had 200 searches per month two years ago might have 1,500 now. Running a keyword reporting process — even monthly — catches these movements and tells you where to double down.

Putting It Together Before You Write

Before any piece of content, the check takes under five minutes:

  1. Enter your target keyword in your tool of choice
  2. Note the monthly volume and difficulty
  3. Check the trend line (growing, flat, or declining)
  4. Look at three to five related variants — pick the best one if a different phrase has materially higher volume
  5. Open an incognito window and search the keyword — look at what's actually ranking to confirm the content format and intent

That's the full validation. If the keyword clears your volume threshold, the difficulty is within range for your current domain authority, and the SERP shows content similar to what you're planning — you're clear to write.

If you want to skip the one-by-one process and find gaps at scale — keywords your competitors are already capturing that your site isn't targeting at all — tools like Rankfill map those opportunities across your full competitive set and surface them ranked by traffic potential.

And if you're wondering why your existing organic keywords aren't ranking yet despite doing everything right, the answer is often that the keyword was validated but the content didn't match what Google wanted to serve — a separate problem from volume, but worth understanding.

FAQ

How accurate are search volume numbers? They're estimates, not exact counts. Tools like Ahrefs and Semrush use clickstream data and modeling to approximate what Google sees. Treat them as directional signals — the difference between 50 and 5,000 is meaningful; the difference between 800 and 1,100 often isn't.

What's a good search volume for a new site? Focus on keywords under 500–1,000 monthly searches with low difficulty (under 30 in most tools). New sites don't have the authority to compete for high-volume terms yet, and targeting realistic keywords builds ranking history faster.

Is Google Keyword Planner enough? For basic checks, yes. The main limitations are that it shows ranges unless you're running ads, it's not great at surfacing long-tail variants, and it doesn't show keyword difficulty. If you're doing this regularly, a paid tool gives you more signal for the time invested.

Can a keyword have high volume but no traffic potential for my site? Yes. If a keyword is dominated by very large domains (Wikipedia, Reddit, major brands), ranking without significant authority is unlikely regardless of volume. Difficulty scores approximate this, but looking at the actual SERP is more reliable.

What does it mean if a keyword shows 0 volume? It means the tool doesn't have enough data to estimate it — not that no one searches for it. Very specific or emerging terms often show zero in tools but drive real traffic. If the phrase is logically coherent and relevant to your audience, it may still be worth targeting.

Should I check volume before or after I have the content idea? Both directions work. You can start with an idea and validate it, or start with a volume-rich gap and build the idea around it. Most working content strategies do both: some pieces are idea-first, some are data-first. The validation step stays the same either way.