What SEO tools do
Search engine optimisation is the work of getting pages found in Google and other search engines. SEO tools make that work measurable. They show which keywords bring traffic, which pages rank and why, what technical issues stop search engines crawling a site, and which links point to it. Most SEO software then turns that data into tasks, such as pages to update, keywords to target or errors to fix.
You do not need every type of tool. A small business site might only need Google Search Console, an SEO plugin and a simple audit tool. An agency or a content-heavy site usually needs a full platform for keyword research, backlink analysis and rank tracking.
Types of SEO tool
- All-in-one SEO platforms such as Semrush, Ahrefs, Moz and SE Ranking combine keyword research, competitor analysis, backlink data, site audits and rank tracking.
- Content optimisation tools score a draft against the pages that already rank and suggest terms, headings and questions to cover. NeuronWriter and Frase are examples in our reviews.
- AI SEO writers such as SEOWriting AI and Blazly draft and publish articles. They need careful editing to avoid thin content.
- Technical SEO tools and crawlers check a site for broken links, slow pages, missing tags and indexing problems. SiteGuru turns an audit into a to-do list, and Screaming Frog SEO Spider is a well-known desktop crawler.
- SEO plugins for WordPress such as Slim SEO handle meta tags, schema, sitemaps and redirects inside the site.
- Rank tracking and local SEO tools follow positions for chosen keywords, often including Google Maps. Ranked AI is a managed local SEO service with its own tracking software.
- AI search visibility tools track whether ChatGPT, Gemini, Perplexity and Google's AI answers mention your brand. Indexly and Visby are in this group.
Free SEO tools such as Google Search Console
Start with the free tools. Google Search Console shows the search queries that bring people to your site, the pages that rank, indexing problems and links from other sites. Google Analytics shows what visitors do once they arrive. Bing Webmaster Tools does a similar job to Search Console for Bing. Together they answer most questions a small site has, and every paid SEO tool works better when you can compare its data with Search Console.
Many SEO tools also have a free plan or online checker or free trial with limits on searches, projects or pages crawled. They are useful for a one-off check before you commit.
Keyword research and competitor analysis
Keyword research shows what people type into Google, how often, and how hard each keyword is to rank for. Good keyword research tools also show the pages that already rank, so you can see the type of content that wins and the competitor sites you are up against. For a small site, focus on specific keywords with clear buying intent rather than broad terms with huge search volume. A keyword with modest volume that matches what you sell often brings more useful traffic than a popular one.
Competitor keyword analysis takes this further, showing which keywords bring a competitor traffic and which links point to their pages. That keyword data is where all-in-one platforms earn their price, and the feature most marketing teams use daily.
Technical SEO checks and site issues
A technical crawl reads your site the way a search engine does and lists SEO issues such as broken links, redirect chains, missing titles, duplicate content, slow pages and pages blocked from indexing. The useful tools rank those problems by impact, so you fix the few that matter rather than chasing every warning. Run a crawl after any redesign or migration, and on a regular schedule for larger sites, as new pages and plugins bring new faults.
Backlink data and links from other sites
Links from other sites are still one of the signals search engines use to judge a page. Backlink tools show who links to you and to your competitors, which links are new or lost, and which pages earn the most links. That data helps you find sites that might mention you and spot spam worth ignoring. Backlink databases are expensive to build, so this feature is usually found in the larger SEO platforms rather than cheap single-purpose tools.
Ranking, rank tracking and AI search
Rank tracking follows your ranking for a set of keywords over time, by country, city or device. Local businesses should look for tracking in Google Maps and the local results as well as normal search. AI search visibility is the newest area: tools now record whether AI assistants mention or cite your brand when people ask questions. AI answers vary from one run to the next, so treat those scores as a trend rather than an exact ranking.
SEO tool pricing and lifetime deals
SEO software is usually priced per month by projects, tracked keywords, pages crawled, users or content credits. All-in-one platforms cost the most, while single-purpose tools such as an audit tool or content optimiser are cheaper. Check the limits on the plan you would actually use, as key features often start a tier or two above the entry price, and check how many users each plan includes if a marketing team or clients need access.
A lifetime deal can work for a single-purpose SEO tool you will use every month. Our best SEO lifetime deals guide covers the current offers, and how to evaluate a SaaS lifetime deal explains what to check first. Data-heavy tools such as backlink databases rarely keep their data fresh on a one-off payment.
Best SEO tools for each kind of business
- SiteGuru suits small businesses and agencies that want a simple SEO to-do list.
- NeuronWriter suits bloggers and small SEO agencies on a budget who want SERP-based content guidance.
- Frase suits content teams running SEO and AI search content in one tool.
- Slim SEO suits WordPress sites that want SEO without bloat.
- Ranked AI suits local businesses wanting done-for-you SEO.
- Indexly suits SaaS teams and agencies tracking AI search visibility alongside indexing and audits.
- Visby suits marketing teams tracking brand visibility in AI answers.
- SEOWriting AI and Blazly suit bloggers and small teams drafting SEO articles quickly, with editing before anything goes live.
Our Frase and NeuronWriter comparison and SiteGuru and Visby comparison set the closest pairs side by side.
How we review SEO software
Our reviews are research based. We read each tool's pricing pages, documentation, changelog and what customers report, then score it against the same criteria as every other tool. How we score explains the method, and every deal on this page is checked against the seller's live price.