XML Sitemaps: What Dublin SEOs Get Wrong

If you’ve ever done a technical SEO audit for a Dublin-based business, you’ve probably seen the same XML sitemap mistakes repeating themselves. It doesn’t matter whether you’re looking at a small local tradesperson’s website or a mid-sized e-commerce company based in the Docklands — the errors tend to cluster around a handful of misunderstandings. And what’s frustrating is that most of them are entirely avoidable once you understand what an XML sitemap is actually supposed to do.

This article breaks down the most common XML sitemap mistakes Dublin SEOs and business owners make, why they matter, and how to fix them properly.

What an XML Sitemap Actually Does (And Doesn’t Do)

Before diving into what goes wrong, it’s worth establishing what an XML sitemap is really for. A lot of people treat it like a magic SEO switch — submit a sitemap, ranking improves. That’s not how it works.

An XML sitemap is a file that tells search engine crawlers which pages exist on your website, when they were last updated, and (optionally) how they relate to each other. It’s a communication tool, not a ranking signal in itself. Google has stated clearly that having a sitemap doesn’t guarantee indexing and doesn’t directly boost rankings.

What it does do is make crawling more efficient. For large websites, websites with poor internal linking, or new websites with few backlinks, a well-structured sitemap helps Googlebot discover pages that might otherwise be missed or deprioritised.

The Scale Question

Google’s own documentation suggests that sitemaps are most valuable for sites with more than 500 pages, sites with a lot of dynamically generated content, or sites that are relatively new. For a small Dublin florist with 12 pages, your sitemap matters far less than your internal linking and page quality. Knowing this helps you prioritise your effort correctly.

Mistake 1: Including Pages That Shouldn’t Be There

This is probably the single most widespread mistake, and it causes real problems. Many Dublin websites — particularly those built on WordPress or Shopify — auto-generate sitemaps that include every URL on the site by default. That sounds helpful, but it often isn’t.

Pages that should typically be excluded from an XML sitemap include:

Noindex pages (pages with a noindex meta tag)

Paginated archive pages (like /blog/page/2/, /blog/page/3/)

Filtered product URLs on e-commerce sites (e.g. /products?sort=price&colour=red)

Thank-you pages and checkout confirmation pages

Duplicate content pages created by URL parameters

Including a noindex page in your sitemap is a direct contradiction — you’re simultaneously telling Google "don’t index this" and "here it is, please visit." It creates confusion in Google Search Console and wastes crawl budget.

What to Audit

Go into Google Search Console and look at the Coverage report. If you’re seeing pages submitted in your sitemap that are also marked as "Excluded" or "Noindex," that’s a red flag. Clean your sitemap so it only contains canonical, indexable URLs.

Mistake 2: Ignoring Sitemap Size and Split Files

Google has a hard limit: an XML sitemap can contain a maximum of 50,000 URLs and must not exceed 50MB uncompressed. Most Dublin websites will never hit these limits. But for growing e-commerce businesses — say, a Dublin-based retailer with thousands of product SKUs — this becomes relevant fast.

The fix is straightforward: use a sitemap index file. This is essentially a sitemap of your sitemaps. It points to separate sitemap files broken out by content type — one for products, one for blog posts, one for category pages, and so on.

Beyond the technical limit, splitting sitemaps by type has a practical benefit. When you look at crawl data and indexing reports, you can immediately see which section of your site is performing well and which isn’t. It’s much cleaner diagnostically.

Mistake 3: Leaving Stale or Broken URLs in the Sitemap

Websites change. Pages get deleted, URLs get restructured, products go out of stock permanently. What happens to those old URLs in your sitemap? For many Dublin businesses, the honest answer is: nothing. They just sit there, returning 404 errors or 301 redirects.

This is a quiet drain on crawl budget. When Googlebot follows a sitemap URL and hits a 404, it logs the error and moves on. If 30% of your sitemap points to dead pages, that’s 30% of your crawl budget wasted on nothing.

Run your sitemap through a tool like Screaming Frog or Ahrefs Site Audit regularly — at least quarterly, more often if your site changes frequently. Remove any URL that returns anything other than a clean 200 status code.

A Common Dublin E-commerce Scenario

Seasonal businesses are particularly prone to this. A Dublin gift company might add hundreds of Christmas product pages in November, then delete them in January. Without a scheduled sitemap cleanup, those deleted URLs can linger in the sitemap for months, quietly racking up crawl errors.

Mistake 4: Misusing the `<lastmod>` and `<priority>` Tags

The <lastmod> tag is supposed to tell Google when a page was last meaningfully updated. The keyword there is meaningfully. A lot of CMS platforms update this tag automatically every time anything changes — even if it’s just a minor plugin update or a comment approval. This trains Google to distrust your <lastmod> data entirely.

Google has actually said publicly (via John Mueller) that they tend to ignore <lastmod> if they determine it’s being updated inaccurately or too frequently. Use it deliberately: only update it when the actual content of a page changes in a substantive way.

The <priority> tag is even more widely misunderstood. It’s supposed to signal which pages on your site are most important — on a scale from 0.0 to 1.0. But here’s the thing: this tag is relative to your own site, not to the wider web. And Google has confirmed they largely ignore it. Setting every page to priority 1.0 — which many auto-generated sitemaps do — tells Google nothing useful and wastes the tag’s potential purpose entirely.

Mistake 5: Not Submitting the Sitemap to Google Search Console

This one sounds basic, but it’s surprisingly common. Many Dublin businesses set up Google Search Console, verify their site, and then never complete the next logical step: submitting the sitemap.

Without submission, Google may still find your sitemap if it’s linked from your robots.txt file (which it should be). But submitting directly through Search Console gives you visibility into how many pages have been indexed versus submitted, and surfaces any errors Google encounters when processing the file.

The process takes two minutes: go to Search Console → Sitemaps → enter your sitemap URL → click Submit. Do it for every domain variation you’re tracking.

Mistake 6: Overlooking Hreflang and Multilingual Sitemaps

Dublin is a genuinely multilingual city. With large communities of Irish, Polish, Portuguese, and Romanian speakers, among others, some local businesses do maintain multilingual websites. If yours is one of them, your XML sitemap strategy needs to account for hreflang annotations.

Hreflang tells Google which version of a page to serve to users based on their language and location. It can be implemented in page headers, HTTP headers, or within the sitemap itself. When it’s implemented in the sitemap, it needs to be done precisely — every language variant must reference all other variants, including itself. Even one missing self-referencing annotation can cause Google to misread the entire set of pages.

This is an area where even experienced SEOs make mistakes. If you’re running an English and Irish language version of a site, or English and Polish, get this right from the start.

Frequently Asked Questions

How often should I update my XML sitemap?
Your sitemap should update automatically whenever you publish or significantly change content — most CMS platforms like WordPress handle this through plugins like Yoast SEO or Rank Math. The important thing is to audit the sitemap manually every few months to catch errors that automation misses, such as lingering 404s or noindex pages creeping back in.

Is it worth having an XML sitemap for a small Dublin business website?
Yes, but with perspective. For a small site with strong internal linking and a few dozen pages, the sitemap won’t transform your rankings. What it does do is ensure Google has a clear map of your site from day one, which is particularly useful when your site is new and hasn’t yet accumulated many external backlinks pointing to it.

Can I have multiple sitemaps?
Absolutely — and for anything beyond a basic brochure site, you should. Use a sitemap index file to organise separate sitemaps for different content types (pages, posts, products, images). This makes diagnostics easier and keeps file sizes manageable.

What happens if I don’t have an XML sitemap at all?
Google will still crawl your site — it does so primarily by following links. But without a sitemap, orphaned pages (those not linked from anywhere else on the site) may never be discovered. You’re also giving up the diagnostic visibility that Search Console provides when a sitemap is submitted.

Why are some of my sitemap URLs not getting indexed?
This is one of the most common questions in SEO. URLs can be submitted but not indexed for many reasons: thin or duplicate content, low-quality signals, crawl budget issues, or Google simply deciding the page isn’t worth indexing. Start by checking the Coverage report in Search Console, identify which category the non-indexed pages fall into, and address the root cause rather than resubmitting blindly.

Conclusion

XML sitemaps are not glamorous. They don’t generate the excitement of a viral content campaign or a link-building win. But they are foundational — and when they’re done wrong, they create quiet, persistent drag on your site’s ability to be properly crawled and indexed.

The mistakes outlined here — bloated sitemaps, stale URLs, misused tags, missing submissions — are all fixable. And fixing them doesn’t require advanced technical knowledge, just careful attention and a willingness to audit regularly. For Dublin businesses competing in an increasingly crowded local search landscape, getting the technical fundamentals right is one of the highest-ROI things you can do.

Don’t treat your XML sitemap as a one-time setup task. Treat it as a living document that reflects the current state of your website — and keep it clean.

Want help auditing your XML sitemap or technical SEO setup? Whether you’re a Dublin business owner trying to make sense of Search Console or an agency looking for a second opinion on a client’s site, our team is happy to help. Get in touch at moc.ssobebolgobfsctd-81c2e9@ofni or call us on +353 1 868 2345 — we’ll take a look at what you’re working with and give you honest, practical advice.

← Back to Blog

Dublin's ROI-Driven Digital Marketing Agency Home