Most small businesses pick blog topics by guessing: something feels relevant, so they write about it. The problem is that Google doesn’t rank guesses — it ranks answers to questions people are already typing. If you write about what you think matters instead of what your customers are actually searching for, you end up with a blog that nobody finds.
Table of Contents
- Quick Answer
- Step 1: Mine the search data you already have
- Step 2: Let Google finish your customers’ sentences
- Step 3: Validate demand and pick winners
- Tips and Common Mistakes
- Free keyword research for blog topics FAQs
- Build It With GTStudios
The good news is you don’t need an expensive SEO subscription to see what people are searching for. Google gives away most of this data for free, if you know where to look. This guide walks through a repeatable process using free tools — Google Search Console, Google Autocomplete, “People also ask,” AnswerThePublic, Google Trends, and Google Keyword Planner — to build a list of blog topics grounded in real search demand.
Quick Answer
Start with Google Search Console (free once your site is verified) to see the exact queries your site already gets impressions for, then expand that list using Google’s own autocomplete suggestions, the “People also ask” and “Related searches” boxes on the results page, and AnswerThePublic’s limited free daily searches. Finally, sanity-check demand and phrasing with Google Trends and Google Keyword Planner, both free with a Google account.
Step 1: Mine the search data you already have
Before looking anywhere else, check Google Search Console — it’s completely free and, if your site has any traffic history, it’s the most accurate source of what real people search before landing on your pages. Go to Performance > Search Results, and sort by Impressions rather than Clicks. Impressions show queries Google already associates with your site, including ones where you rank on page two or three and get few clicks — those are often untapped blog topics you’re almost ranking for.
Filter by page to see which queries bring people to a specific service or product page, then look for questions and phrases that aren’t answered anywhere on your site yet. If you don’t have Search Console set up, it takes about ten minutes to verify a domain (usually via a DNS TXT record or an HTML tag) and is worth doing before any other keyword research.
Step 2: Let Google finish your customers’ sentences
Open an incognito browser window (so past searches don’t skew results) and start typing a broad topic related to your business into Google search — for example, “how to fix a leaking faucet” or “best accountant for.” The autocomplete suggestions that appear are drawn from real, common searches. Try the same seed phrase with a letter or word after it (“…for small business,” “…near me,” “…cost”) to surface more variations.
Next, run the search and scroll to the “People also ask” box partway down the results page — click a couple of the questions open, since each click loads new related questions underneath. Scroll to the bottom of the results page for the “Related searches” and “People also search for” boxes as well. Together, autocomplete, People also ask, and related searches usually surface a dozen or more real customer phrasings from a single seed term, all without leaving google.com.
For a more organized view of the same kind of data, AnswerThePublic offers a free plan that currently allows a small number of searches per day (three), which requires signing in with a free account. Enter a seed keyword and it groups the questions people ask around that topic by type — questions, prepositions, comparisons — which is useful for spotting blog-post-shaped topics (how, why, vs., for) rather than one-word keywords. Since the daily allowance is limited, it’s best used for a handful of your highest-priority seed topics rather than every service you offer.
Step 3: Validate demand and pick winners
Once you have a raw list of phrases, use Google Trends (free, no account required) to compare a handful of them side by side and see whether interest is rising, falling, flat, or seasonal — useful for deciding what to write now versus what to save for a specific time of year, and for spotting regional differences if your business serves a specific area.
For a rough sense of monthly search volume, use Google Keyword Planner. It’s part of Google Ads and requires a free Google Ads account, but you do not need to create a campaign or spend any money to use it — sign up, switch to Expert Mode, click “Skip campaign creation,” then find Keyword Planner under Tools. Without active ad spend, Planner shows volume as a range (e.g., 1K–10K) rather than an exact number, which is still enough to tell a high-demand topic from a low-demand one.
Prioritize topics where the phrasing matches how customers actually talk (not internal jargon), where you can give a genuinely better or more specific answer than what currently ranks, and where the topic connects naturally to a page on your site you want more traffic to.
Tips and Common Mistakes
Write the question as a heading and answer it directly in the first sentence or two — many of the queries surfaced by these tools are exactly the kind of specific question that appears in Google’s featured snippets and AI-generated summaries when answered clearly and concisely.
Don’t stop at one seed keyword. Run the autocomplete and People also ask process for every core service or product you offer; a plumbing business, for example, should do this separately for “leaking faucet,” “water heater,” “clogged drain,” and so on rather than one generic pass.
Avoid chasing high-volume keywords that don’t match your business — a broad, generic topic with lots of searches but no local or commercial intent usually brings visitors who were never going to become customers. A more specific, lower-volume question closely tied to what you sell is often more valuable.
Revisit Search Console every month or two. As you publish new content, new impressions and near-miss rankings show up, which is a strong sign of what to write next or which existing post needs expanding.
Explore more: More digital strategy guides.
Free keyword research for blog topics FAQs
Do I need to pay for anything to do this kind of keyword research?
No. Google Search Console, Google Autocomplete, the People also ask and Related searches boxes, Google Trends, and Google Keyword Planner are all free. AnswerThePublic’s free plan is limited to a few searches per day and requires a free account sign-in, but that’s usually enough for a monthly topic-planning session.
What if my site is brand new and Search Console has no data yet?
Start with Autocomplete, People also ask, and AnswerThePublic instead, since these don’t depend on your site having existing traffic. Once your site has been live and indexed for a few weeks, Search Console will start populating with real query data you can use going forward.
How many blog topics should I gather before I start writing?
Aim for a running list of at least 15-20 validated topics per core service or product so you always have a backlog. Research in batches every month or two rather than one time only, since search behavior and your own ranking data both change over time.
Build It With GTStudios
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Photo: Panelxf / CC0, via Wikimedia Commons.
Originally published at gtstu.com.
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