Belfast cross-border keyword research: UK vs Ireland

What to take away

The dual-market problem for Belfast content teams

Belfast is Northern Ireland's main digital hub, and its content teams sit closer to a second national market than any others in the UK. Dublin is roughly two hours down the road. A shopper in Newry and a shopper in Dundalk may want the same thing and type entirely different words to find it.

The problem is that one site, one blog and one keyword list usually have to serve both. That works until you notice that "delivery" means something different to a customer in Belfast than to one in Cork, and that your page ranks for one and not the other.

Treat the two markets as separate demand pools from the start. Each has its own currency, its own tax vocabulary and its own delivery expectations. A single keyword set quietly averages them, and averages hide the market you are losing.

This is not a niche concern. Northern Ireland ecommerce teams sell into Ireland constantly, often without a plan for how Irish shoppers search. InterTradeIreland, the cross-border trade body for the island, publishes cross-border trade guidance and runs funding programmes for firms selling south for the first time, and it is the usual first stop before you touch a keyword tool. The keyword research market entry checklist then frames the marketing decisions.

Currency, VAT and delivery wording that changes search terms

Wording is not decoration. It is the query.

A shopper who wants prices in euro types "price in euro" or "eur price". A shopper paying in sterling types "price uk" or nothing at all. If your product pages only ever say "£", you will not appear for the euro phrasing, and the Irish shopper will assume you do not ship to them.

VAT wording splits the same way. UK shoppers search for "inc VAT" and "VAT included". Irish shoppers search for "incl VAT" too, but the rate and the rules behind it differ, and VAT in Ireland is administered by the Revenue Commissioners rather than HMRC. Irish business buyers often search for "VAT number" or "VAT invoice" because they need to reclaim it.

Cross-border VAT wording therefore belongs in your page copy and in your keyword list.

Delivery wording is the third split. "Free delivery" is UK phrasing. "Free shipping" and "delivery to Ireland" are the terms Irish shoppers use. Returns wording matters just as much, and consumer-facing delivery and returns text sits under the Consumer Rights Act 2015, which shapes what you can and cannot promise. On the Irish side the Consumer Rights Act 2022 applies instead, and it is enforced by the Competition and Consumer Protection Commission (CCPC).

EU consumer law also affects UK businesses selling into Ireland, particularly around pre-contractual information duties and how you present terms to consumers. The Consumer Rights Directive sets those duties for distance selling, and the Digital Services Act covers online marketplaces and platforms, so both are worth reading before you write delivery promises you cannot keep. For physical goods, the Windsor Framework, which replaced the Northern Ireland Protocol, governs how Northern Ireland trades with the EU, and shipping south means an XI EORI number, which HMRC's guidance explains. Compliance terms such as these belong in your Irish keyword set rather than in a footnote.

The table below shows how one product line splits across the two markets.

Structuring keyword sets for UK and Ireland audiences

Separate UK and Ireland keyword sets are the core discipline. One spreadsheet with a market column is enough. Do not merge them into a single list and hope the tool sorts it out.

Keyword Planner lets you set location targets, so you can pull estimates for the UK and for Ireland as separate runs rather than one combined figure. The Keyword Planner tool is the practical starting point for that split. Google Trends, Ahrefs and Semrush all allow a country-level split in the same way, and Search Console reports the queries your site already receives by country. Google is the dominant search engine on both sides of the border, so the split comes from the location setting and the query wording, not from a different tool stack.

Once you have volumes, look at who is actually searching. When to build a keyword research target audience from search data sets out the method in full, and it beats guessing because the queries themselves reveal whether you are reaching consumers or trade buyers.

Cross-border competitor sets in Belfast

Your competitors are not one list. They are at least three.

Three sets cover it in practice: Northern Ireland traders selling south, Irish-only retailers such as Woodie's, and chains such as Currys and Boots that trade on both sides of the border.

Run competitor research for an England audience as a baseline, then repeat it for Ireland. The overlap will be smaller than you expect. A GB retailer may dominate "free delivery" in Britain and be invisible for "delivery to Ireland".

Look at the words your Irish rivals use on category pages, not just their domain authority. Their phrasing is your keyword list. If they say "shipping" and you say "delivery", that gap is the whole opportunity.

Measuring performance across two markets

A cross-border measurement approach means never reporting a single blended number for the island. Split every report by market, and split by market before you split by anything else.

Search Console lets you filter query data by country, which is the simplest way to see whether Irish impressions are growing or flat. Google's SEO Starter Guide covers the fundamentals of reading that query data, and the country filter is where cross-border teams should start.

Set a baseline for each market on the day you split the sets. Track impressions, clicks and conversion rate separately. A rise in Irish impressions with flat Irish conversion usually means your delivery or VAT wording is putting people off after they arrive.

Watch for cannibalisation too. If your UK page and your Ireland page target near-identical terms, one will win and the other will fade. Give each market its own page and its own wording. Reading demand signals for England alongside your Irish data keeps the comparison honest, because seasonality and buying cycles do not align perfectly.

A Belfast cross-border keyword checklist

Common questions