You do not need a $500-a-month tool stack to do good SEO. You need Search Console, a crawler, and the discipline to actually look at them. Almost everything else is convenience.
Here is what I would install first on a site with no budget, and what each tool is genuinely for.
The three non-negotiables
1. Google Search Console — free
The only tool that tells you what Google actually thinks about your site. Nothing else is a substitute, and no paid tool can replicate it.
Use it for: indexation status and the reasons pages are excluded, real impression and click data by query and page, Core Web Vitals field data, manual actions, sitemap submission, and URL inspection to see what Googlebot receives right now.
The mistake people make is treating it as a traffic dashboard. Its real value is the Pages report and URL Inspection — the diagnostic side.
2. Google Analytics 4 — free
For what happens after the click: which landing pages produce enquiries, which produce bounces, and how organic compares to your other channels. Set up conversion events properly on day one; GA4 is far less useful without them.
3. A crawler
Screaming Frog is free up to 500 URLs, which covers most small business sites entirely. Ahrefs also offers Site Audit free for verified sites through its Webmaster Tools tier.
Use it for: orphan pages, click depth, broken links, redirect chains, missing titles and meta descriptions, duplicate content, missing alt text, and heading structure. This is the tool that finds most of what an audit reports.
Free tools worth knowing
- PageSpeed Insights / Lighthouse — diagnosing why a page is slow. Use field data in Search Console to judge whether it matters.
- Rich Results Test and Schema Validator — verifying structured data actually parses and is eligible.
- Google Trends — real relative demand over time and by region. Genuinely useful for seasonality and for choosing between two phrasings.
- Google autocomplete, People Also Ask and related searches — the cheapest legitimate keyword research available, straight from Google. Underrated because it feels too simple.
- Bing Webmaster Tools — free, and it includes keyword data Google does not give you.
- Ahrefs Webmaster Tools — free site audit and backlink data for domains you verify.
- Your own site search logs — what visitors type into your search box is literal, unfiltered intent data about your own audience.
Where paid tools genuinely earn their money
Not for beginners, and not for a single small site. They earn their cost when:
- You need keyword volume and difficulty at scale. Autocomplete tells you a phrase exists; it does not tell you whether 50 or 5,000 people search it monthly. Ahrefs, Semrush and similar do, and that is their real value.
- You need competitor data. What your competitors rank for, what content earns their links, and where the gaps are. This is very hard to reconstruct free.
- You need backlink analysis. Search Console shows some of your links; it shows none of anyone else’s.
- You manage many sites. The per-site cost collapses and the time saved becomes the argument.
- You need rank tracking with local grids. Position varies by physical location, and only a grid view exposes that.
The order I would buy in
1. Nothing — get Search Console, GA4 and a free crawler working properly first. Most sites have months of work available from those alone.
2. A rank tracker, when you need to prove movement to someone.
3. One full-suite tool (Ahrefs or Semrush), when keyword volume, competitor and backlink data are genuinely blocking decisions.
4. A local grid rank tracker, if local search is a primary channel.
The honest point
Tools do not do SEO. On most small sites, the highest-value work available right now — fixing indexation, building internal links, writing something genuinely better than what ranks, completing a Business Profile — needs no paid tool at all. Buying software before doing that work is a way of feeling productive without being productive.
Frequently asked questions
What SEO tools do I actually need?
Google Search Console, Google Analytics 4, and a crawler such as Screaming Frog or Ahrefs Site Audit. That combination covers indexation, performance, technical issues and post-click behaviour, and it is free for most small sites.
Is Google Search Console enough on its own?
For diagnosing indexation problems and seeing real query data, it is irreplaceable. It will not give you keyword volumes, competitor data or backlink profiles, which is where paid tools become necessary.
Do I need Ahrefs or Semrush?
Not to start. They become genuinely valuable when keyword volume, competitor analysis and backlink data are blocking real decisions, or when you manage several sites and the per-site cost falls.
What is the best free keyword research method?
Google autocomplete, People Also Ask and related searches, combined with Google Trends for relative demand and your own site search logs for literal audience intent. It lacks volume figures, but it is real data straight from the source.
Is a free crawler good enough?
For sites under about 500 URLs, yes — Screaming Frog’s free tier covers most small business sites completely, and it will find orphan pages, broken links, missing metadata and duplicate content just as well as a paid crawl.
Rather have someone run the tools properly?
Owning the tools and knowing which finding matters are different skills. That is what a technical SEO audit buys. Get in touch if you would like the diagnosis rather than the software.
