SEO Tools: Which One Do You Need for the Job?
Compare Search Console, GA4, Screaming Frog, Ahrefs and Semrush by the job they do. Check data sources, free limits and requirements before buying.
Quick Answer
Compare SEO Tools by the Job They Do
Where Should You Start with Free SEO Tools?
Search Console: Investigate Search Visibility
GA4: Measure Behaviour After the Visit
PageSpeed Insights: Read the Finding Behind the Score
What Does Screaming Frog Add?
Ahrefs or Semrush? Define a Trial Task First
A Small-Business Setup Without Unnecessary Subscriptions
Quick Answer
Choose an SEO tool by the requirement: Search Console for Google visibility, GA4 for behaviour after arrival, Screaming Frog for crawling and PageSpeed Insights for page performance. Assess tools such as Ahrefs or Semrush for a research gap. Check capabilities, data coverage and usage limits before buying.
One tool gives your website a high score, another lists dozens of warnings, and a third estimates a competitor's traffic. None necessarily explains why a visitor abandoned your enquiry form. Choosing software by feature count can leave you paying for overlapping data while the practical question remains unanswered.
SEO tools serve different jobs: examining search data, crawling a site, researching competitors and measuring behaviour. Start with the decision you cannot currently make. The comparison below uses documented product functions; it is not a claim that we tested every product under identical conditions or assigned performance ratings.
Compare SEO Tools by the Job They Do
| Requirement | Starting tool | Data and limitation |
|---|---|---|
| Google visibility and indexing | Google Search Console | Google data for an authorised property, not a competitor's account |
| Behaviour after an organic visit | Google Analytics 4 | Events and sessions captured by the implementation; setup errors affect results |
| Broken links, redirects and metadata | Screaming Frog SEO Spider | URLs found in its crawl, not Google's indexing decision |
| Page performance issues | PageSpeed Insights | A lab test and real-user data where enough samples exist |
| Competitor pages and backlinks | Ahrefs | The provider's index and estimates, not the competitor's Analytics account |
| Keyword options and regular position tracking | Semrush | Data within the chosen market, keyword and subscription scope |
Where Should You Start with Free SEO Tools?
Search Console: Investigate Search Visibility
For a property you can access, review query and page performance, then use URL Inspection and the indexing report to examine Google's reported status. The Performance report helps you understand your own site; it does not expose another business's equivalent account data.
“Crawled, currently not indexed” is a different diagnosis from a robots.txt block. Google's indexing guidance says the URL may or may not be indexed in the future. Investigate content, equivalent pages and technical conditions instead of assuming an indexing request guarantees inclusion.
GA4: Measure Behaviour After the Visit
With suitable measurement, GA4 helps you examine organic landing pages and actions important to the business. A form-button click should not be treated as a successful submission. Define key events around the business outcome and verify that they trigger correctly.
Search Console clicks and GA4 sessions do not match one for one. When interpreting the numbers, use the period, source and enquiry distinctions in the worked SEO report example.
PageSpeed Insights: Read the Finding Behind the Score
PageSpeed Insights combines a controlled lab test with real-user measurements where available. Field data covers the preceding 28 days. If a page lacks enough samples, the tool may use origin-level data or show no field data. A lab performance score is not a Google ranking.
What Does Screaming Frog Add?
Screaming Frog SEO Spider crawls URLs and lists information such as response codes, redirects, titles, descriptions and links. Its free version is limited to 500 URLs per crawl. Check licensing restrictions for saving crawls, JavaScript rendering and API integrations. These details were checked against the vendor's documentation on 19 October 2026.
A store with 500 products does not necessarily have only 500 crawlable URLs: categories, filters and other addresses can add to the scope. Prioritise the warnings before assigning work. A broken link on a sales page and a missing description on an unused archive are different tasks. Interpret the findings within a technical SEO review.
Ahrefs or Semrush? Define a Trial Task First
Ahrefs Site Explorer supports research into competing pages, organic keywords and backlink profiles. Semrush Keyword Magic Tool provides ideas, volume, difficulty and intent data for a selected country database. Their functions overlap; the brand name alone does not establish a universal winner. Check the types of search intent against the actual results page before turning a tool’s label into a content decision. When reviewing the results, inspect the backlink source and surrounding context; a count or single score is not enough for a decision.
Before subscribing, set three tasks from your own work: investigate queries associated with a specific competing page, identify relevant service terms in your target market, and export information a developer can use. Locate the market, historical-data, project, user and export limits in the proposed plan. The keyword research guide covers how to turn query options into a content decision.
An estimated competitor traffic figure is not a record of its actual visits or sales. Difficulty and authority scores come from provider models too. Expect differences between tools and check sample queries against real search results. Compare the total cost of the capabilities you need, rather than assuming the entry plan includes them.
A Small-Business Setup Without Unnecessary Subscriptions
- Access and measurement first: Use Search Console for Google search data and an appropriate GA4 implementation for actions after arrival.
- A specific technical question: Examine a page with PageSpeed Insights or use a crawler for link and metadata issues.
- Paid software for a missing requirement: State which decision regular competitor research or position tracking would change.
- A person responsible for using it: Assign someone to interpret the data and someone to implement the work. Another subscription will not fix an unused report.
A WordPress plugin, browser extension and full-site crawler perform different jobs. A plugin may help edit titles or manage a sitemap; an extension may show tags on the open page. Neither alone proves that the whole website or its search demand has been assessed. AI-assisted analysis needs checks against the live URL, the date of the data and the accuracy of each recommendation.
Collecting data and implementing fixes are separate responsibilities. If your team lacks analysis or delivery capacity, identify the part of SEO consultancy or implementation support you need. The software list should follow the work required.
FREQUENTLY ASKED QUESTIONS (FAQs)
Start with the question you need to answer. Search Console provides Google data for your site, while suitable GA4 measurement describes behaviour after arrival. Add a crawler or research platform for a specific requirement instead of purchasing a large stack immediately.
Free tools can support initial visibility, measurement and page-performance checks. More extensive crawling or regular competitor research may create a separate need. Check the relevant limits and implementation requirements; a paid subscription is not automatically necessary for every website.
List the decisions, sites and markets you need to cover. Check who will interpret the output and implement the fixes. Begin with the smallest set that answers those questions, then assess paid capabilities against a real missing requirement.
Test equivalent tasks with your own market and example competitors. Compare data coverage, history, projects, seats and exports in the actual plan. Provider estimates should not be presented as a competitor's recorded traffic or sales.
No. A plugin may help manage page settings, but it does not by itself verify Google indexing or every site-wide issue. Use the appropriate search data and crawl evidence for those questions, and check which functions your plugin actually provides.
It can expose observations such as broken links, redirects or missing metadata. Someone still needs to check their impact, decide the order of work and implement the changes. A crawl result is evidence to investigate, not proof that the issue has been fixed.
