Keyword Analysis: How to Choose the Right Keywords for Your Business

Keyword research is where good SEO begins. Choosing the wrong keywords means that even perfect SEO execution will attract the wrong traffic. The right keywords bring purchase-ready customers to your business continuously.

Understanding the Key Keyword Metrics

Before choosing keywords, master three core metrics:

Search Volume: how many times a keyword is searched per month. Higher is better, but competition typically scales with volume.

Keyword Difficulty (KD): how hard it is to rank in the top 10 for that keyword. New websites should focus on KD below 30 initially.

Cost Per Click (CPC): how much advertisers pay per click in Google Ads. High-CPC keywords signal strong commercial intent — valuable for organic SEO as well.

Types of Keywords Every Business Must Know

Short-tail keywords: broad 1-2 word terms like "SEO" or "กระเป๋า." Massive search volume but extremely competitive with low conversion rates.

Long-tail keywords: specific phrases of 3+ words like "วิธีทำ SEO สำหรับธุรกิจเล็ก." Lower volume but significantly higher conversion rates. Ideal starting point for SMEs.

Local keywords: location-specific terms like "ร้านกาแฟ สยาม" or "ทนายความ เชียงใหม่." Essential for businesses serving specific geographic areas.

How to Conduct Keyword Research for the Thai Market

Free tools: Google Keyword Planner (requires Google Ads account), Google Search Console (for existing websites), Google Autocomplete, and People Also Ask sections within SERPs.

Paid tools worth the investment: Ahrefs or SEMrush for accurate data and competitor analysis.

Manual method: type your seed keyword into Google, observe autocomplete suggestions, scroll to Related Searches at the bottom, and expand "People Also Ask" to discover actual questions people are asking.

Keyword Strategy for Thai SMEs Just Starting Out

Begin with long-tail keywords with KD below 20 and moderate search volume (100-1,000 per month). Create thorough content addressing each keyword. As domain authority grows, expand into more competitive keywords.

Prioritize buyer intent: keywords searched when people are ready to purchase deliver higher ROI than informational keywords, even with lower search volumes.

TL;DR Key Takeaways

• Understand three core metrics: Search Volume, Keyword Difficulty, and CPC
• Start with low-KD long-tail keywords matching your business's offering
• Google Autocomplete and People Also Ask are free keyword goldmines
• Prioritize buyer intent keywords over purely informational queries
• Measure keyword performance monthly via Google Search Console

FAQ

Q: Should I target one keyword or multiple keywords per article?
A: Choose one primary keyword and 2-3 secondary keywords sharing the same search intent. Write content that naturally addresses all of them.

Q: Does a search volume of 0 mean no one searches that keyword?
A: Not necessarily. Most tools show 0 for keywords searched fewer than 10 times per month. These niche keywords can have very high conversion rates precisely because of their specificity.

Q: Thai-language or English keywords — which is better for Thai business websites?
A: Depends on your target audience. General Thai consumers primarily search in Thai. B2B or highly educated demographics may search in English. Targeting both is ideal if resources allow.

Q: How often should I refresh keyword research?
A: At minimum twice yearly — quarterly is better. Search behavior shifts with new trends, news events, and changing consumer language.

Q: What are competitor keywords and should I use them?
A: Keywords your competitors already rank for. Find them using Ahrefs or SEMrush. Excellent for identifying proven market opportunities since you know the demand is real.