If you only set up one SEO tool, make it this one. Google Search Console gives you data straight from the source — Google’s own index. You can see exactly which keywords your pages rank for, how many impressions and clicks they get, your average position, and any technical errors Google found when crawling your site.

The Performance report is goldmine territory: filter by page to see which of your posts rank for what, then look at keywords with lots of impressions but low CTR — those are your quick-win optimisation targets. The Coverage report shows you any pages Google is struggling to index, which is critical if you’re publishing regularly.

There’s no keyword difficulty scores, no competitor research, and no backlink data — but for understanding what Google already thinks about your own site, nothing else comes close.

Google Search Console tells you how people find your site. Google Analytics 4 tells you what they do once they’re there. Together, they give you the full picture of your organic search performance.

With GA4 you can track which pages have the highest bounce rates (telling you where content needs improving), which posts actually convert visitors into email subscribers or affiliate clicks, how long users spend reading each article, and where traffic drops off in your conversion funnel.

The interface took some getting used to after Universal Analytics, but the Exploration reports are genuinely powerful for understanding user behaviour. Set up GA4 from day one — the data is cumulative, and you’ll want historical records once your site starts growing.

This is the most generous free offering from any major paid SEO platform. Ahrefs Webmaster Tools (AWT) gives you access to Ahrefs’ industry-leading backlink database — for your own verified websites — completely free.

Once you verify your site (via DNS, HTML file, or Google Search Console), you get: full backlink reports, referring domain counts, your Domain Rating, organic keyword rankings with estimated traffic, and a basic site health audit. That’s premium-tier data you’d normally pay $129/month for.

The catch: you can only see data for sites you own. To research competitor backlinks or do keyword research across any domain, you’ll need a paid Ahrefs plan. But for monitoring your own site’s backlink growth and finding broken links pointing to you, AWT is unbeatable at the free price point.

Ubersuggest is the most accessible keyword research tool for beginners, and its free plan is genuinely useful — not just a teaser. You get 3 keyword searches per day, which sounds limiting but is actually enough for a blogger who does keyword research before writing each post.

Each search gives you the keyword’s monthly search volume, SEO difficulty score, CPC (useful for gauging commercial intent), content ideas, and backlink suggestions for the target keyword. The traffic analyser lets you peek at competitor top pages, which is great for finding content gaps.

For deeper keyword exploration, the paid plans start at $12/month — one of the lowest prices in the SEO tools market. Read our full Ubersuggest review to see exactly what’s worth the upgrade and what’s not.

Screaming Frog is the go-to desktop tool for technical SEO audits. The free version crawls up to 500 URLs on your site and reports back on broken links (404s), redirect chains, missing meta descriptions, duplicate title tags, missing H1s, page speed issues, and much more.

For a new blog or small site, 500 URLs is more than enough. I use the free version regularly to quickly check a site’s technical health before writing a review — it surfaces issues in minutes that would take hours to find manually.

It’s a desktop app (Windows/Mac), not a browser tool, which means it’s slightly more technical than the other tools on this list. But if you’ve ever wondered why Google isn’t indexing certain pages or why your site has crawl errors, Screaming Frog is the fastest way to find the answer.

Semrush is the most powerful all-in-one SEO platform in the industry — but it’s also the most expensive at $139.95/month. The free account lets you do 10 keyword or domain searches per day, which is just enough to do pre-writing keyword research if you use it strategically.

What I find the free Semrush account most useful for: quickly checking a competitor’s top organic pages and their estimated monthly traffic. Even with the 10-search limit, that single use case can unlock a lot of content ideas. The keyword difficulty scores and keyword magic tool are also accessible in limited form.

If you’re seriously considering an upgrade, read our full Semrush review — we tested it for 30 days and break down exactly which features justify the price and which ones you’ll probably never use.

Keyword Surfer is the free Chrome extension from Surfer SEO, and it’s one of the most useful free SEO tools for day-to-day research. Every time you search on Google, it overlays keyword data directly in the search results: search volume, CPC, and word count for top-ranking pages.

You also get a sidebar showing related keywords with their monthly search volumes — genuinely useful for finding long-tail variations while you’re browsing Google. It’s completely free with no daily limits, making it the most frictionless keyword tool on this list.

The underlying technology is built by Surfer SEO, one of the best content optimisation platforms available. If you want to go beyond the free extension, read our Surfer SEO review to see what the full paid platform adds.