One of the most common questions from WordPress users is how to add multiple keywords in the free version of Yoast SEO. The short answer is that the free plugin supports a single focus keyphrase per page, and there is no field for a comma separated keyword list. That limitation confuses people who remember the old meta keywords tag, but it actually reflects how modern search works. Pages rank for hundreds of related queries based on overall topical relevance, not because a list of terms was declared somewhere in the markup.

Why the Single Field Is Not a Real Limitation

In our experience, well written articles typically rank for dozens or even hundreds of query variations while only ever having one focus phrase entered in the plugin. Search engines interpret synonyms, question forms, plural variations and closely related concepts automatically. The practical task is therefore to cover a topic comprehensively in natural language, not to declare every possible phrasing in a settings box. Understanding that shift saves a great deal of wasted effort.

How AAMAX.CO Can Help You Get More From Your Keywords

At AAMAX.CO we build keyword clusters that let a single page capture large groups of related queries, then structure the content so each subtopic is genuinely addressed rather than merely mentioned. We handle research, briefing, on-page optimisation, internal linking and performance tracking so you can see exactly which terms each page earns over time. If you want your existing WordPress content to work considerably harder, hire AAMAX.CO for results driven SEO services. We are a full service digital marketing company offering web development, digital marketing and SEO worldwide, so plugin configuration, technical fixes and content production all come from one accountable team.

Adding Your Focus Keyphrase in the Free Version

Open the post or page in the WordPress editor. Find the Yoast SEO section below the content or open the Yoast sidebar from the toolbar icon. Under the SEO tab, the first input is Focus keyphrase. Enter one phrase, ideally two to five words, that best represents what the page is about. The analysis updates instantly, showing whether the phrase appears in your title, slug, introduction, subheadings, meta description and image descriptions. Update the post to save. That single field is the entire keyword input available for free, and it is enough.

What the Free Plugin Recognises Automatically

Yoast free includes word form recognition for English, so if your phrase is optimise images the plugin also credits mentions of optimising images or image optimisation. It does not, however, accept manually defined synonyms or additional related keyphrases; those are premium features. In practice this means you should choose the phrasing that best matches how your audience searches, then write naturally about the topic, trusting that both the plugin and search engines will understand reasonable variations.

Covering Multiple Related Terms Without Premium

Do your keyword research externally, using a keyword tool, search suggestions, related searches and the questions boxes on results pages. Group everything that shares one underlying intent into a single cluster and build one comprehensive page for it, using subheadings that address each specific variation as a genuine question. Enter the strongest phrase from the cluster in the focus keyphrase field. Terms with clearly different intent deserve their own pages, linked together so readers and crawlers can move between them easily.

Where to Place Your Terms on the Page

Put the primary phrase near the start of the SEO title, in the slug, in the opening paragraph, in one subheading and once in the meta description. Distribute related variations across subheadings and body copy where they read naturally. Use the words your audience actually uses rather than industry jargon, and answer each question directly beneath its heading before elaborating. This structure is easy to scan, well suited to featured snippets and generative answers, and requires no premium features at all.

Optimise the Metadata You Can Control for Free

The free plugin lets you write custom SEO titles and meta descriptions with variable templates, set canonical URLs, control indexing per page, manage breadcrumbs, generate XML sitemaps, add basic organisation schema and configure social sharing previews. These are substantial capabilities. Many sites we audit have the premium version installed but blank meta descriptions and default title templates, which is a far bigger problem than the absence of extra keyphrase slots. Master the free features before considering an upgrade.

Avoid the Old Habit of Keyword Lists

Some plugins and legacy themes still expose a meta keywords field, and occasionally clients ask us to populate it. It has no effect on major search engines and has been ignored for well over a decade. Similarly, stuffing many variations into your title tag, repeating a phrase in every heading, or listing terms at the bottom of a page will not help and may look manipulative. Time spent on those tactics is far better invested in improving depth, structure and internal links.

When Upgrading Actually Makes Sense

Premium adds related keyphrases, synonym support, internal linking suggestions, redirect management, orphaned content detection and multiple social previews. For a site publishing weekly and running occasional restructures, the redirect manager and internal linking tool usually deliver more value than the extra keyphrase fields. If your content operation is small and stable, the free version plus good research and disciplined writing will serve you perfectly well. Upgrade for workflow efficiency, not because you believe extra keyphrase slots will lift rankings.

Monitor Which Terms You Actually Rank For

Connect the site to a search console and review the queries each page attracts. You will almost always find terms you never targeted, which is exactly how topical relevance is supposed to work. Use that data to refine articles: expand sections around queries generating impressions but few clicks, adjust titles to match dominant phrasing, and identify subtopics with enough demand to justify a dedicated page. This feedback loop is more valuable than any keyword field in any plugin.

Final Thoughts

To add keywords in Yoast SEO free, enter one focus keyphrase per page in the Yoast panel and let the plugin analyse your content against it. Cover related variations through comprehensive, naturally written content with clear question based subheadings, optimise the titles and descriptions the free version already lets you control, and use search console data to guide updates. Done consistently, that approach will earn far more query coverage than any list of keywords ever could.