You rewrote the headline four times, stuffed your primary keyword into every subhead, and your landing page still dropped from position 4 to position 11. A keyword density checker for landing pages exists for exactly this moment: it tells you whether your page reads like it was written for a person or crammed for a crawler, and landing pages fail this test more often than blog posts because founders treat them as keyword billboards instead of sales pages.
Here's the direct answer. A keyword density checker for landing pages works by pulling every word and phrase from your page's body copy, counting how often your target keyword and its variants appear, and dividing that count by the total word count on the page. Run it before you publish, not after traffic already dropped — landing pages get edited less frequently than blog posts, so mistakes sit there for months.
How to Check Keyword Density on a Landing Page
Checking density on a landing page isn't the same exercise as checking a blog post, because landing pages are shorter, denser, and packed with repeated CTAs that skew the count.
- Paste your landing page URL or raw copy into a density tool that separates one-word, two-word, and three-word phrase counts.
- Exclude navigation, footer, and repeated CTA buttons from the count — most tools don't do this automatically, so check the raw extracted text first.
- Note your primary keyword's density as a percentage of total body word count, not total page word count including boilerplate.
- Check density for your two or three closest keyword variants, not just the exact match phrase.
- Compare density against the top three ranking pages for the same query, not against a fixed rule of thumb.
- Flag any phrase appearing above 3% of body text for manual review.
- Read the page out loud — if a sentence sounds unnatural when spoken, the density number will confirm what your ear already caught.
That last step matters more than people admit. Tools measure frequency, not fluency. A page can sit at a "safe" 1.8% density and still read like it was written by someone who hates their reader, because the keyword lands in the same rigid spot in every paragraph.
Why Landing Pages Get Over-Optimized More Than Blog Posts
Blog posts have room to breathe — 1,500 words gives a keyword space to appear naturally a dozen times without anyone noticing. Landing pages don't have that luxury. You're trying to rank for "project management software for agencies" in 400 words of hero copy, three feature blocks, and a pricing table, and every section feels like an opportunity to cram the phrase in one more time.
This is the trap: founders treat the landing page like an ad, where repetition drives memorability, instead of like a page competing against genuinely well-written competitor pages in the SERP. The result looks fine to you because you wrote it and you're pattern-matching for the keyword you care about. It looks robotic to Google and to the visitor who's three sentences from bouncing.
What's the Ideal Keyword Density for a Landing Page?
There's no universal magic number, and any tool that gives you one flat percentage across every niche is guessing. What matters more is distribution — your primary keyword in the H1, once in the opening 100 words, once near a CTA, and then naturally in supporting sections without forcing it into every subhead.
A reasonable working range for landing pages sits between 0.5% and 1.5% for the exact-match phrase, lower than most blog content guidance because landing pages are shorter and every repeated instance carries more weight per word. Push past 2% on a page under 600 words and you're very likely visible to anyone, human or algorithm, as stuffing.
The Mistake That Breaks Most Landing Pages
Most founders don't stuff a single keyword. They stuff a keyword family — "landing page," "landing page builder," "best landing page tool," "landing page software" — treating each variant as separate real estate when Google reads them as the same topical signal repeated five times in different clothes.
This is the gap most density checkers miss entirely: they'll tell you your exact-match density is a safe 1.1%, then completely ignore that you've used four close variants another dozen times, pushing your combined topical density well past what reads naturally. Checking one phrase in isolation gives you a false sense of safety. You need to check the density of your entire keyword cluster together, not just the one phrase you happen to be targeting that week.
The fix isn't deleting the variants. It's diversifying language around the same intent — swap "landing page builder" for "the tool," "this page," or a direct product reference in alternating sentences, so the topic stays clear without every sentence sounding like a keyword drill.
Landing Page Density vs. Blog Post Density
| Factor | Landing Page | Blog Post |
|---|---|---|
| Typical word count | 300–800 words | 1,200–2,500 words |
| Safe density range | 0.5%–1.5% | 0.8%–2% |
| Keyword variant risk | High, few words, many repeats | Lower, more room to spread mentions |
| CTA repetition impact | Skews density counts upward | Minimal effect |
| Best fix when over-optimized | Cut repeated variants, diversify phrasing | Add sections, spread mentions naturally |
A Non-Obvious Edge Case: Alt Text and Anchor Links Count Too
Most people run their density check against visible body copy and stop there. But if your landing page has five product screenshots with alt text like "landing page builder dashboard," "landing page builder pricing," and "landing page builder templates," your actual crawled keyword density is higher than what you see in the visible text, sometimes significantly higher. The same applies to internal anchor text pointing back to the page itself. If three other pages on your site link to your landing page using the exact same anchor phrase, that reinforces the same signal from an angle most founders never check. Run your alt text and inbound anchors through the same density lens you use for body copy, because Google does.
How Do You Fix a Landing Page That's Over-Optimized?
Cut the repeated exact-match phrase down to two or three natural placements — H1, opening line, one CTA — and replace the rest with pronouns, synonyms, or direct product mentions. Then read the page again for flow before you republish, since density tools flag the problem but they don't fix your prose for you.
This is where a landing page audit earns its keep, because density is only one signal among several — thin content, missing internal links, and weak search intent match usually show up in the same audit pass. WriteGap's landing page audit flags over-optimized sections alongside "fix this page" recommendations, so you're not fixing density in isolation while ignoring a title tag that's missing your keyword entirely. If your page cannibalizes another post targeting the same query, that's a separate problem worth checking with WriteGap's cannibalization detection before you spend time rewriting copy that was never going to rank anyway.
Should You Check Density Before or After You Publish?
Before. Every time. Once a landing page is live and indexed, fixing over-optimization means waiting for Google to recrawl and re-evaluate, which can take weeks depending on how often the page gets crawled. Check density during the draft stage, when WriteGap's AI article writer or SEO content brief generator can flag phrase repetition before the page ever goes live, and you skip the recrawl waiting game entirely.
Open your landing page copy right now, paste it into a density checker, and see if any variant of your target keyword clears 2%. If it does, you already know where to start cutting.