What skills do you need to work in SEO?

If you want to become an SEO specialist, the list of things to learn can feel endless. Keywords, crawling, backlinks, schema, analytics, algorithm updates. Where do you even begin?

Here's the good news: the essential skills for aspiring SEO professionals are not a mystery, and you don't need a client list or a pricey course to start building them. Most of the job comes down to four habits: writing helpful pages, checking technical basics, making sense of data, and explaining your ideas clearly to other people.

Write pages people actually want to read

Good SEO content starts with a useful answer. Before you write anything, finish this sentence:

After reading this page, someone will be able to…

Say you're writing about cleaning running shoes. Your sentence might be: "…choose the right cleaning method for their shoes and know what to avoid." That one sentence becomes your filter. If a section doesn't help deliver it, cut it. If a reader could get stuck at a certain step, add an example or a practical detail.

Two more things separate helpful pages from forgettable ones.

First, bring something of your own. Repeating what the top ten results already say gives readers (and search engines) no reason to pick your page, so add first-hand experience, a clearer explanation, or answers to questions other pages skipped. Second, make it easy to navigate. Use a clear title, headings that describe what each section covers, and internal links with text that tells people where they're going. "Our guide to waterproofing hiking boots" beats "click here" every time.

Try this: Pick one existing page, yours or a practice page. Highlight every vague sentence, unanswered question and claim that needs support. Rewrite them, then note what you changed and why. That write-up is far more impressive in an interview than "I added the keyword five times."

Learn technical SEO basics

Start by understanding how search engines work. Crawlers move from page to page by following links and collecting what they find. That content is then processed and, if it's judged worth keeping, added to the index, which is where search results come from. A page that can't be crawled or isn't indexed can't rank, no matter how good the writing is. Once you see it that way, most technical problems make sense: a broken link is a dead end for a crawler, a robots.txt rule can block it from a page, and a stray noindex tag tells search engines to leave a page out.

Here are the problems worth checking first:

  • Broken links. Internal or external links that lead to a 404 error frustrate visitors and waste crawling. Fix the link, or redirect the old URL to the closest relevant page.
  • Slow load times. Oversized images, heavy scripts and slow hosting are the usual causes. Run the page through PageSpeed Insights and start with the easy win of compressing images.
  • Pages not indexed. In Google Search Console, the Page indexing report and the URL Inspection tool show whether a page is in the index and, if not, why. Common reasons include a noindex tag, a robots.txt block, a duplicate page, or Google simply choosing not to index it yet.
  • Missing or duplicated titles and headings. Easy to spot, easy to fix, and they affect both readers and how your page appears in search.

You don't have to check all of this by hand. Google Search Console and PageSpeed Insights are free, and a site crawler such as Screaming Frog (which has a free version for small sites) or the site audit tools in Ahrefs Webmaster Tools and Semrush will scan a whole site and flag errors for you. Treat every flagged item as a lead to investigate rather than a verdict. Audit tools often report dozens of issues, and only some of them will matter for your site.

When you find something, work through it the same way each time. Open the page and check that it loads and the main content is visible. Inspect the title, headings, links and any indexing instructions. Compare what you expected with what your tools report, then write down the URL, what you saw and what you think might help. After the fix goes live, check the page again.

Learning basic HTML makes all of this easier, because you'll understand what you're looking at when you inspect a page. And when you need a developer's help, you don't have to know the answer. A clear note is enough: which page is affected, what you found, and what needs investigating.

Turn SEO data into a next step

SEO reports are packed with numbers, and each number tells you something different. Google Search Console, for example, shows clicks, impressions, click-through rate and average position. These help you understand visibility and how people respond to your listings, but they aren't interchangeable measures of success.

The skill here isn't building dashboards. It's separating what you know from what you suspect:

"Clicks went down" is an observation. "The new title caused the drop" is a theory, and you'll need more evidence before you say it out loud.

When you review a page, ask yourself:

What changed, and where? What could explain it? What information are we missing? And what should we check or do next?

Wherever tracking allows, try to connect search performance to something the business cares about, like a qualified inquiry or a purchase. More traffic doesn't automatically mean more customers, so be clear about what you're measuring and what you can't tell yet.

How to learn SEO basics for free

You can learn SEO without spending money. Start with reliable reference material:

Treat these as references you return to when a real question comes up, not a reading list to finish before you're "allowed" to start working.

A simple learning loop works well.

Read about one topic, try it on a practice site, then write down what you found and what you'd do next.

For example, read about what makes a page title useful, review a handful of titles on your own site, then suggest specific improvements with a reason for each one.

If you're thinking about a paid SEO course, look past the certificate. Does it include practical exercises? When was the material last updated? Do its claims point to evidence? And if you use AI tools to brainstorm or organise notes, fact-check everything before you rely on it or publish it.

Build SEO experience with a small project

Wondering how to get SEO experience with no job and no clients? Run a small project on your own site, or on a site where you have clear permission to make changes. Keep it focused enough that you can explain what you did and why.

Start by setting a baseline: note the site's purpose, which pages you're looking at, what data you can access, and what you can't measure yet. Then pick one opportunity, such as a confusing page, an unanswered customer question, or a technical issue worth checking, and write down why it deserves attention. Make one focused change, get permission if needed, and record the date it goes live. Changing one thing at a time makes it much easier to understand what happened. Finally, review the result: confirm the change was implemented, look at the evidence you have, consider what else might have affected the outcome, and note what you'd investigate next.

Search results can take time to reflect changes, and sometimes nothing visibly moves. That doesn't mean the project failed.

Turn your project into an SEO case study

A thoughtful SEO case study is the start of a portfolio, even if you've never had a client. Include:

  • The original problem
  • The evidence you used
  • The change you made
  • The outcome
  • Any limitations

If the result is inconclusive, say so. Honest, careful reasoning is part of the work, and it's exactly what a hiring manager wants to see.

Your next step

SEO looks enormous when you view it all at once. Shrink it down. Choose one small project and produce something you can review: a research sheet, an improved page, a technical finding, or a clear report.

Then keep practising the same habits: explain your choices, check your work, and change your mind when the evidence points somewhere else. Those habits, more than any tool or tactic, are the essential skills for aspiring SEO professionals.

And that’s all for today,

Adam.