No Money to Buy Ahrefs/SEMrush丨Get High-Traffic Keywords Without Spending a Cent (Including 5 Tool List)

本文作者:Don jiang

We tried using ChatGPT to generate keywords — traffic dropped by 43%

While you’re hesitating over Ahrefs’ $99 monthly fee, Google’s algorithm updates are already helping your competitors grab your long-tail keyword rankings using free tools.

According to a survey by Moz, 72% of SEO professionals have given up on keyword optimization because of tool costs. But what most people don’t know is: Google’s free official data can cover 85% of what paid tools offer.

Ahrefs and SEMrush

Google Keyword Planner

✅ Pros

  • Data straight from Google Search, covering 90% of languages and regions
  • Shows ad bidding range (helps assess commercial value)

❌ Cons

  • Monthly search volume is shown as a range (like 100–1K), not exact numbers
  • You need a Google Ads account (but you don’t have to pay)

🔧 How to Use (Desktop Version)

  1. Go to Google Ads → Sign up → After logging in, click “Tools” → “Keyword Planner”
  2. Type in a seed keyword (like “fitness meal”) → Click “Get Results”
  3. In the filters, check:
    • Monthly search volume: 1,000–10,000
    • Competition: Low
  4. Export to Excel and prioritize keywords with “Suggested Bid” under $1 (high commercial value but fewer advertisers)

📌 Best for

✓ Testing new market potential ✓ Picking e-commerce product keywords

Ubersuggest (Free Version)

✅ Pros

  • Shows Keyword Difficulty (KD) and CPC data
  • Lets you analyze competitors’ top keywords

❌ Cons

  • Free version limits you to 3 searches a day
  • Lower long-tail keyword coverage compared to Ahrefs

🔧 How to Use (Mobile-Friendly)

  1. Go to Ubersuggest official site → Enter a competitor’s website (like http://www.xxx.com)
  2. Click “Keyword Analysis” → Sort by “Traffic (Monthly)”
  3. Apply filters:
    • Keyword Difficulty (KD) < 40
    • Traffic > 500
  4. Copy the “low KD, high traffic” keywords into your content calendar (focus on expanding topics that already have traffic)

📌 Best for

✓ Quickly spotting competitor gaps ✓ Prioritizing content for small blogs

AnswerThePublic (Question-Based Keywords)

✅ Pros

  • Visually shows user search intent (question trees/preposition structures)
  • Supports Chinese searches (with manual URL tweaks)

❌ Cons

  • Free version limited to 3 searches per day
  • Chinese data isn’t as rich as English data

🔧 How to Use (Tips for Chinese Keywords)

  1. Go to AnswerThePublic → Enter a Chinese keyword (like “immigration”)
  2. Add &localse=zh to the URL and hit Enter (forces Chinese results)
  3. Download the CSV file and filter for:
    • Question words: how/why/which
    • Prepositions: cost/requirements/risks
  4. Use the question-based keywords as subheadings for your articles (boosts FAQ section coverage)

📌 Best for

✓ Building content libraries on Q&A platforms like Zhihu or Xiaohongshu ✓ Finding pain points for video scripts

Keyword Tool Dominator (Long-Tail Expansion)

✅ Pros

  • Scrapes real-time Google/YouTube/Bing autocomplete suggestions
  • Supports non-English keywords (like Japanese/Spanish)

❌ Cons

  • Requires installing a browser plugin
  • Some results may include duplicates or meaningless combinations

🔧 Steps (for Cross-border E-commerce Use)

  1. Install the Chrome extension → Open Google Japan (http://www.google.co.jp)
  2. Search a main keyword (like “歯磨き粉 おすすめ” / “recommended toothpaste”) → Click on the plugin icon
  3. On the results page, check:
    • Include local words (example: for Japan → “楽天” (Rakuten), “ドラッグストア” (drugstore))
    • Exclude brand names (example: “クリニカ” (Clinica), “システマ” (Systema))
  4. Import the final keyword list into Google Translate and prioritize creating multilingual product pages

📌 Best for

✓ Optimizing Amazon/Etsy Listings ✓ Local SEO for services like restaurants/beauty salons

Google Trends (Trend Insights)

✅ Pros

  • Shows real-time search popularity changes (by region and time)
  • Finds related rising and falling keywords

❌ Cons

  • Doesn’t show exact search volumes
  • Need to manually compare multiple keywords

🔧 Steps (for Newsjacking)

  1. Go to Google Trends → Enter an industry keyword (like “camping”)
  2. Set time range to “Past 12 months” → Set region to “China”
  3. Click “Related Queries” → Filter by “Rising”
  4. Insert trending keywords (like “summer camping outfits for women”) into the intro paragraph of your existing articles (use Ctrl+F to find the best spot)

📌 Best for

✓ Seasonal product content planning ✓ Topic selection for platforms like Toutiao/WeChat Official Accounts

Quick Tool Match Based on Your Needs:

Your GoalRecommended ToolKey Execution Tips
Find low-competition, easy-to-rank keywordsUbersuggestFocus on keywords with KD < 40 and few competitor backlinks
Build a Zhihu topic libraryAnswerThePublicExport “Why ___” and “How ___” types of questions
Optimize Amazon Japan listingsKeyword Tool DominatorGrab local words like “口コミ” (reviews) and “比較” (comparison)
Evaluate entry into the Brazilian marketGoogle Keyword PlannerFilter for keywords with search volume > 500 and CPC < $0.5
Leverage traffic during Qixi FestivalGoogle TrendsPlan related keywords like “gifts” and “dating” at least 2 weeks ahead

Important Reminders

⚠️ Free doesn’t mean perfect: Use multiple tools together to cover each tool’s weaknesses (for example, validate Ubersuggest keywords by checking if they are trending upward in Google Trends)
⚠️ Chinese limitations: AnswerThePublic defaults to English, so you’ll need to manually add parameters for Chinese results
Data validation: Always cross-check your keyword research results with real CTR data from Google Search Console