pay per click keyword research, ppc advertising, google ads keywords, keyword research tools, digital marketing

Pay Per Click Keyword Research: A Step-by-Step Guide

Written by LLMrefs TeamLast updated June 30, 2026

You launched the campaign. The ads look sharp. The landing page is live. A few days later, the account shows clicks, spend, and almost nothing else you care about.

That usually isn't an ad copy problem. It's a keyword problem.

Good pay per click keyword research isn't about finding the biggest list in Google Ads. It's about choosing queries that match buyer intent, filtering out waste before launch, and building a structure that gets smarter after real search term data comes in. That's what separates a campaign that burns budget from one that compounds.

There's also a newer layer most PPC guides still underplay. Search behavior isn't limited to short commercial phrases anymore. Buyers also ask conversational questions in Google AI Overviews, ChatGPT, Perplexity, Gemini, Claude, and other answer engines. If your keyword process ignores question-based and zero-volume terms, you miss both paid search efficiency and future-facing demand capture.

Laying the Foundation for Profitable PPC Campaigns

The wrong keyword can look good in a spreadsheet and still fail in-market. That's why I treat keyword research as campaign architecture, not setup admin.

A five-step infographic illustrating the process of PPC keyword research from campaign launch to profitable conversions.

When people first learn PPC, they often chase volume. That feels logical. More searches should mean more opportunities. In practice, campaigns win when keywords match the action you want the visitor to take after the click.

That matters even more when every click has a cost. In 2022, pay-per-click marketing generated an average return of $2 for every $1 spent, with a global average cost per click of $1.16, according to Search Engine Land's paid search guide. That benchmark is strong enough to make PPC attractive and tight enough to punish sloppy keyword choices.

What profitable keyword research actually looks like

A solid process does three things at once:

  • Finds commercial intent terms that signal buying behavior, such as keywords with modifiers like pricing, compare, review, best, or buy
  • Captures problem-aware searches that sit one step before purchase, where people know the pain but haven't picked a vendor yet
  • Includes conversational queries that traditional planners often underweight, especially the question formats that AI answer engines favor

A project management SaaS is a simple example. "Project management software" is broad. "Project management software pricing" is closer to revenue. "Best project management tool for remote design teams" may look less obvious in a classic keyword report, but it's often more revealing because it contains context, urgency, and selection criteria.

Practical rule: Never ask whether a keyword gets traffic first. Ask what kind of visitor it sends.

The trade-off most teams miss

Broad, obvious keywords give you reach. Narrow, intent-rich keywords give you control. You need both, but not in equal proportions.

If a junior strategist builds a campaign around generic category terms alone, Google can find traffic but the account usually learns the wrong lessons. If they build only around ultra-narrow exact match terms from day one, they limit discovery and miss the language buyers use. The right workflow starts with informed breadth, then tightens based on evidence.

That same principle now applies to AI-driven discovery. Commercial phrases still matter. But conversational intent matters too, because people increasingly search the way they talk. A modern keyword set isn't just a buyer list. It's a demand map.

Building Your Initial Seed Keyword List

Most weak accounts start weak because the seed list was lazy.

People open Google Keyword Planner, type a product name, export suggestions, and call that research. That produces a list. It doesn't produce understanding. Your starting point should come from customer language, not tool output.

A hand holding a magnifying glass over a notebook page featuring business optimization concepts and strategy keywords.

Start with what buyers actually say

Use a fictional example: a B2B SaaS company that sells project management software for agencies.

A bad seed list looks like this:

  • Too broad: project management
  • Too generic: team software
  • Too internal: workflow platform

A better seed list starts closer to pain points and buying contexts:

  • Use case phrases: gantt chart software for agencies
  • Commercial evaluation terms: team collaboration tool pricing
  • Switching intent: Asana alternative for client work
  • Operational pain language: task tracking software for remote creative teams

The easiest way to get these terms is to talk to teams that hear customers unfiltered.

Mine internal sources before touching tools

I always start with four sources inside the business:

  1. Sales call notes
    Reps hear objection language, competitor mentions, and phrases buyers repeat before purchasing.

  2. Support tickets and chat logs
    These show feature vocabulary. Customers often search with capability language, not category language.

  3. Site search data
    If people use your internal search bar, they're telling you exactly how they think about the product.

  4. Demo request forms and CRM notes
    These reveal job titles, use cases, and urgency words that don't show up in polished marketing copy.

A SaaS team might describe its product as "resource coordination software." Buyers may search "software to manage freelancers across client projects." The account should be built around the second phrase set, not the first.

The market doesn't care what your positioning deck says. It responds to the language buyers use when they need help.

Pull terms from competitors without copying their strategy

Competitor pages are useful because they expose the language other teams believe is worth paying for. Review their ad copy, headline patterns, landing page titles, and comparison pages. Don't mirror them blindly. Translate what you see into your own account structure.

If you want a practical way to inspect how rival advertisers frame search demand, this breakdown of competitor keywords in Adwords is a useful reference.

Common examples you can extract from competitor analysis:

  • Comparison framing: monday.com vs Asana for agencies
  • Buyer-stage wording: best client project tracking software
  • Pricing-led intent: creative agency project management pricing
  • Migration intent: move from spreadsheets to project management software

A quick walkthrough helps if you're training a junior teammate on the mechanics:

Build a raw list before you judge it

At this stage, don't over-filter. Capture the language first. You can prune later.

I like to sort seed ideas into simple buckets:

Bucket Example for SaaS
Product terms project management software for agencies
Problem terms track client work across teams
Comparison terms best Asana alternative for agencies
Pricing terms agency task management software pricing
Feature terms gantt chart software with client views

A seed list should feel human. If it reads like it came straight from a planner export, it's probably too generic to support a high-performance campaign.

Expanding and Refining With Modern Research Tools

Once the seed list is solid, tools become useful. Before that, they mostly amplify bad assumptions.

Google Keyword Planner still matters because it gives you native platform data and fast expansion. Use it. But don't let it define reality for you. A lot of teams make that mistake, especially when they treat volume as a gatekeeper for whether a keyword deserves attention.

Where standard tools help and where they fail

Keyword Planner is good at three things:

  • Generating adjacent ideas from core seed terms
  • Showing rough demand patterns across related topics
  • Supporting campaign buildouts inside Google Ads

It's weak in the places that now matter more:

  • Question-based searches with natural phrasing
  • Emerging niche terms before they become obvious
  • Zero-volume phrases that still convert
  • Context-rich language people use in AI answer engines

That gap isn't small. Data from 2025 shows that 45% of high-conversion PPC keywords now fall into zero-volume categories due to algorithmic filtering, and 70% of PPC professionals still rely exclusively on Google Keyword Planner, as noted in the cited source behind this claim at the referenced Instagram post. The practical takeaway is simple. If your process stops at Keyword Planner, you're blind to a meaningful slice of buying intent.

Expand in layers, not in one giant export

A better workflow looks like this:

First, run your seed terms through Google Keyword Planner to collect obvious variants. Then layer in sources that surface language planners tend to miss, such as autocomplete results, People Also Ask phrasing, support-ticket language, Reddit threads, customer review phrasing, and question-led tools.

For local service advertisers, this matters even more because modifiers and service context often convey the user's intent. If you're working on home services, legal, medical, or regional campaigns, these proven keyword strategies for local businesses are a good complement to standard PPC research.

Look for hidden value, not just visible volume

A junior PPC manager often assumes short-tail keywords are more expensive because they're broader and more competitive. That's not always true. A 2024 investigation found that medium and long-tail keywords are often more expensive than short-tail keywords, and it found no significant relationship between short-tail keywords and cost per click in the published research on keyword length and CPC. That finding matters because it breaks a common shortcut. Longer doesn't automatically mean cheaper, and higher volume doesn't automatically mean more costly.

So when you expand your list, don't sort only by volume. Review terms through three lenses:

  • Intent fit: does the search suggest a buyer, evaluator, or tire-kicker?
  • Offer fit: can your landing page answer that exact need?
  • Cost fit: is this term worth testing relative to your margins and conversion path?

A keyword with no visible volume can still be commercially valuable if the wording signals a specific need your product solves.

Modern research includes conversational search

Classic PPC and Generative Engine Optimization start to overlap. Buyers don't just type "crm software pricing" anymore. They ask, "What's the best CRM for a small sales team that needs pipeline automation?" That's not just content strategy material. It can inform PPC themes, landing page angles, and ad copy language.

Question-based phrasing helps you discover pain points, objections, and evaluation criteria. Those terms often become strong phrase match or broad match tests, especially when grouped tightly around a clear use case.

If your research process can't surface those queries, your account will lag behind the way people search now.

Classifying Search Intent and Prioritizing Keywords

A long keyword list can make an account look prepared while hiding a weak launch plan. Accounts often fail not from a lack of ideas, but from failing to separate buyer-intent queries from curiosity clicks.

That classification work matters more now because PPC research no longer stops at classic high-volume terms. Buyers still search "crm pricing" and "asana alternative," but they also ask full questions in Google, ChatGPT, and AI Overviews. Those lower-volume, conversational queries often reveal the use case, urgency, and objection that generic keywords miss.

A hand sorting search intent keywords into commercial, informational, and navigational buckets to illustrate SEO intent strategy.

Use four intent buckets

Keep the framework simple and strict. Every keyword should land in one primary bucket based on what the searcher is trying to accomplish.

Informational intent

These searches come from people learning the category or trying to understand a problem. Examples include "how to create a project plan" or "what is gantt chart software."

They can support remarketing, audience building, and content-assisted acquisition. I would not make them the core of a budget-constrained search launch unless the sales cycle is long and the economics support top-of-funnel traffic.

Commercial intent

These searches show active evaluation. Terms like "best project management tools," "project management software reviews," or "Asana alternative for agencies" usually mean the buyer has moved past awareness and is comparing options.

This is often where campaigns get their first efficient traction. The searcher is not ready in every case, but the odds of qualified intent are much better than with broad educational terms.

Transactional intent

These are the closest to revenue. Searches like "buy project management software," "project management platform pricing," or "book demo project management software" usually signal that the buyer wants terms, access, or a next step.

These terms deserve early priority even when volume is modest. In many accounts, a lower-volume pricing keyword is worth more than a higher-volume educational query because the landing page match is tighter and conversion intent is clearer.

Conversational intent

This bucket gets ignored too often. Queries like "what's the best way to manage remote team tasks" or "which project management tool works best for a small agency with freelancers" may show little or no visible volume in standard tools, but they carry rich context.

That context matters in two places. It can produce profitable PPC tests, and it can shape copy and landing pages for AI answer engines where people search in full questions instead of short fragments.

Treat conversational keywords as a research asset, not an SEO side note

Conversational queries rarely belong in the same priority tier as pricing or demo terms. They still belong in the system.

Use them to spot recurring pain points, modifiers, and decision criteria. A phrase like "for remote design teams" or "for agencies with contractors" can become an ad group theme, a landing page section, or a phrase match test. It can also inform the language you use in pages that need to appear in AI-generated answers.

This is one of the clearest overlaps between PPC and Generative Engine Optimization. Traditional keyword tools underreport this demand because many of these searches are fragmented across hundreds of variations. Buyers still ask them. If you ignore them, you end up optimizing only for visible demand and miss the language real prospects use when they explain their problem.

Prioritize by business value first, volume second

Volume helps with forecasting. It should not run the account.

Google's own guidance on understanding search intent aligns with what works in paid search. Match the query to the user's underlying goal, then decide whether that goal fits the action you want on the page. A keyword moves up the list when it shows buying intent, maps to a specific offer, and can be handled with the right match type and landing page.

For practical triage, I use a stack like this:

Priority tier What belongs here Example
Tier 1 High commercial or transactional fit, direct path to demo, quote, or sale project management software pricing
Tier 2 Comparison and alternative terms with clear evaluation intent best Asana alternative for agencies
Tier 3 Conversational, use-case-rich tests with strong message value what's the best project tracker for remote design teams
Tier 4 Informational support terms for remarketing or assisted conversion how to organize client deliverables

A manageable launch list usually beats an oversized one. Keep the core set focused enough that the team can review search terms, write relevant ads, and make bid decisions without losing control.

Keep zero-volume terms in a separate test queue

Zero-volume does not mean zero value. It usually means the keyword tool cannot aggregate enough historical data to report demand confidently.

That distinction matters if you care about AI-led discovery. Specific, conversational searches often appear as isolated terms in Google Ads, internal site search, sales call transcripts, and prompt-style queries in answer engines. I keep these in a separate testing queue and score them on three factors: how clear the use case is, how close the query is to a buying situation, and whether we have a landing page that can answer it well.

If the term is specific, commercially relevant, and easy to map to an offer, it deserves a controlled test even without reported volume.

Add match type discipline before you rank final priority

Intent classification gets weaker if match type is an afterthought. A high-intent keyword can still waste spend if broad matching pulls in adjacent searches with different motives. Teams running local or service-based campaigns should review match behavior closely, especially in verticals where wording shifts user intent fast. This Google Ads guide for trades is a useful reference for that review.

I also document likely landing page targets during prioritization, not later. If a keyword has no obvious destination page, it drops down the list. That simple filter prevents a common mistake: bidding on attractive terms before the account has a page built to convert them.

If you want a cleaner handoff from intent classification into campaign build, use a workflow that connects priority tiers to keyword grouping software. It makes it easier to turn intent labels into tightly mapped ad groups without rebuilding the list from scratch.

Structuring Ad Groups and Mapping Keywords

At this point, keyword research stops being theory and starts becoming an account.

Weak structure causes two predictable problems. Ads become generic, and landing pages stop matching the query that triggered the click. Both problems raise costs and lower conversion quality.

Start broad enough to learn, then tighten based on evidence

For most advertisers, the best starting move isn't to build dozens of exact match ad groups from assumptions. For 80 to 90% of businesses, the winning paid search strategy is to start with long-tail broad match keywords, monitor performance, and then build a specific exact match list based on real search term data, according to Define Digital Academy.

That advice is practical because it matches how search campaigns mature. You launch with controlled discovery. You inspect the search term report. Then you protect the winners in tighter exact match groups once the account proves they deserve it.

If you want a deeper look at grouping logic before building campaigns at scale, this guide to keyword grouping software is a useful reference.

Don't lock the account around guesses. Let search term data tell you which themes deserve exact match protection.

Keep ad groups tight and landing pages specific

A junior PPC manager often makes one ad group called "Project Management Software" and dumps everything into it. That forces vague ads and sends mixed signals to Google.

A better setup splits by theme:

  • Pricing-focused group for pricing and cost terms
  • Agency-specific group for agency use cases
  • Alternative group for competitor comparison terms
  • Feature group for gantt chart, task tracking, or resource planning queries

Each group should point to the closest landing page match. If the keyword says pricing, send traffic to pricing. If it says alternative, send it to a comparison page or migration page. If it says software for agencies, send it to an industry-specific page.

For service businesses and trades, match type choices can get messy fast. This Google Ads guide for trades does a good job explaining how match type decisions affect lead quality in practical terms.

Example Ad Group Structure for a SaaS Tool

Ad Group Keywords Included Example Negative Keyword Landing Page URL
Agency Pricing project management software pricing for agencies, agency project management pricing, team collaboration tool pricing free /pricing
Agency Alternatives Asana alternative for agencies, Monday alternative for creative teams, best project management software for agencies jobs /alternatives
Gantt and Planning gantt chart software for agencies, project planning software for client teams, timeline planning tool for agencies template /features/gantt
Remote Collaboration remote team task tracking software, collaboration software for agency teams, manage client work across remote teams tutorial /solutions/remote-teams

The exact keywords you add will evolve. The structure shouldn't be random.

Match type should reflect confidence

Use broad match and phrase match to discover. Use exact match to defend known winners. That's the cleanest way to balance reach with control.

If a search term keeps showing strong engagement and conversion quality, pull it into an exact match ad group with customized copy and a landing page that mirrors the query. If a term keeps attracting the wrong audience, cut it or negative it. The account should become more opinionated over time.

Developing a Proactive Negative Keyword Strategy

Most PPC waste is optional.

Teams love finding new keywords because it feels like progress. But campaigns often improve faster when you block bad traffic than when you add more terms. Negative keyword work is how you stop paying for clicks that never had a chance.

Build your first negative list before launch

This should happen before the campaign spends anything.

Failing to conduct negative keyword research can waste significant budget on clicks that never convert, and this process is considered just as critical as regular keyword research for PPC success, based on WordStream's guidance on keyword research for PPC.

For a SaaS product, the starter negatives often include irrelevant intent modifiers such as:

  • Free-seeker terms: free, cheap, open source
  • Employment terms: jobs, careers, salary
  • Learning intent: tutorial, course, training
  • DIY modifiers: template, example, spreadsheet
  • Support noise: login, help desk, customer service

That list changes by business model. A local service advertiser might exclude "DIY" and "how to." An enterprise software brand may exclude "for students" or "personal use." The point is to anticipate mismatch before Google finds it for you.

Read search term reports like a budget defense tool

Negative keyword strategy isn't set-and-forget. Search term reports are where the essential work happens.

Review them regularly and make two decisions every time:

  1. Which queries are relevant enough to promote into your keyword set?
  2. Which queries should be blocked so they never trigger ads again?

Those two actions work together. You add precision and remove waste in the same pass.

Search term reports don't just show what happened. They show what the account is learning, correctly or incorrectly.

Think in patterns, not one-off negatives

A junior team member might add a single negative after spotting one bad query. That's fine, but the stronger move is to find the pattern behind it.

If you see multiple searches around jobs, hiring, and salaries, don't patch one phrase. Build an employment-related negative cluster. If you see repeated education-seeking traffic, add course, certification, tutorial, and training variants where appropriate.

Broad match discovery can uncover valuable buyer language and irrelevant demand at the same time. If you aren't proactive with negatives, Google will happily keep testing the wrong audience on your budget.

A disciplined negative keyword routine does more than reduce waste. It improves signal quality across the account, which makes every future optimization easier.

Forecasting Performance and Continuous Optimization

A forecast is the plan you take into launch. It is not proof that the keyword set will work.

Before spending a dollar, pressure-test the list against three constraints: budget, landing page coverage, and intent quality. If a keyword needs its own message and page to convert, but you are sending it to a generic page, the forecast is already too optimistic. The same applies to newer conversational queries and low-volume phrases that look weak in standard planners but often map cleanly to high-intent searches in AI answer engines and Google AI Overviews.

Forecast with business constraints first

Start with the keywords you can support. Prioritize terms tied to clear commercial investigation or purchase intent, then separate them from research-heavy queries that belong in a different campaign, a different landing page path, or an organic and GEO content workflow.

For volume estimates and bid ranges, use Google Keyword Planner as a directional tool, then model downside cases. Google's own documentation on forecasting your Google Ads performance is useful here because it frames forecasts as estimates based on past auction behavior, not guarantees of future results.

I usually build forecasts in ranges, not single-number targets. A tight range forces better decisions on budget allocation, match type, and launch priority. It also keeps junior teams from treating projected clicks as committed results.

CPC forecasts need the same discipline. If you are validating bid assumptions during planning, this guide on how to check CPC for keywords gives a practical way to review likely cost before terms go live.

The optimization cycle begins after launch

Once the campaign is active, keyword research shifts from planning to account management.

Use the first search term data to answer a few hard questions. Which queries deserve promotion into exact match? Which themes are wasting spend? Which ad groups are too broad to learn cleanly? Which low-volume, conversational searches are showing strong downstream behavior even though they looked insignificant in the planner?

That last point matters more than it used to. Standard PPC workflows often discard zero-volume or near-zero-volume terms because they do not forecast well. In practice, some of those queries show up as natural-language searches, voice searches, or AI-assisted prompts with very specific intent. They may never become high-click keywords in Google Ads, but they can reveal buying language, objections, and comparison angles worth building into ad copy, landing pages, and GEO content.

A practical post-launch rhythm looks like this:

  • Review search term reports for exact-match candidates and emerging intent patterns
  • Add negatives fast when irrelevant themes appear more than once
  • Break strong themes into tighter ad groups so ad copy and landing pages match the query more closely
  • Cut bids or pause themes that spend without creating qualified actions
  • Rework landing pages when the keyword is right but the message-to-page match is weak

What strong optimization looks like

Say the campaign launches around "agency project management software." After the first week or two, the account often starts splitting itself into clearer themes than the original keyword list suggested.

Pattern found Action
Repeated pricing searches Move them into a dedicated pricing ad group and send traffic to the pricing page
Strong alternative-to or versus queries Build a competitor comparison ad group with direct ad copy and a comparison page
Irrelevant template or free-download searches Add negatives at the ad group or campaign level, based on how broadly the pattern appears

This is why pre-launch keyword research should be precise, but not rigid. The goal is to launch with a structure that can learn quickly, absorb real query data, and separate profitable intent from noisy traffic without rewriting the whole account every week.

Good PPC optimization gets sharper over time. Good GEO-aware research does too. Search term reports improve the paid account, and they also surface the conversational language people use when they ask AI systems for recommendations, comparisons, and problem-specific advice. That overlap is where better campaigns usually come from.

Pay Per Click Keyword Research: A Step-by-Step Guide - LLMrefs