My Website Doesn't Show Up on Google: 9 Reasons (Luxembourg 2026)

You type your company name into Google. Nothing. You try your trade plus your town. Still nothing. Your website exists, you paid for it — and it’s nowhere to be found.

If you’re thinking “my website doesn’t show up on Google” right now, here’s the good news: in the vast majority of cases, the cause can be identified quickly, and fixed. No developer skills required.

Here are the 9 possible reasons, ranked from most to least common. For each one, a concrete check you can run yourself, in two minutes.

1. First, check whether you exist for Google (the site: search)

Before hunting for the cause, you need to know which problem you actually have. There are two, and they’re very different:

• Your site is not indexed: Google doesn’t have it in its database. It can never show it, no matter what someone searches for.
• Your site is indexed but ranking poorly: Google knows it exists, but it shows up on page 4, where nobody ever goes.

How do you check Google indexing? Type this into the search bar: site:yourdomain.lu (replace with your actual domain name).

If your pages appear, your site is indexed — your problem is ranking, and we’ll come back to that at the end of this article. If Google replies that no results match, your site is genuinely not indexed: reasons 2 to 5 below are the prime suspects.

Action (2 minutes): run the site: search, then create a free account on Google Search Console if you haven’t already. It’s Google’s official tool, and the rest of this diagnostic relies on it.

2. Your site is too new: the “sandbox” effect

Google doesn’t index a website the day it goes live. It first has to discover it, crawl it, then decide to trust it. For a brand-new domain with no history, that takes anywhere from a few days to several weeks.

This is what people call the “sandbox”: an observation period during which Google shows your site cautiously, especially on competitive searches. It’s not a malfunction. It’s not a penalty. It’s how things normally work.

Action (2 minutes): in Search Console, submit your homepage address via URL inspection and click “Request indexing”. Then give Google two to four weeks before concluding there’s a real problem.

3. Your site is blocked by robots.txt

The robots.txt file is a small file at the root of your website that tells search engines what they’re allowed to visit. During development, providers often add a blanket ban so the work-in-progress version doesn’t end up in Google.

The problem: sometimes that ban stays in place after launch. The result is a perfectly functional website that Google is formally forbidden from reading.

Action (2 minutes): open yourdomain.lu/robots.txt in your browser. If you see the line Disallow: / (with a lone slash), your site is closed to Google. Ask your provider to remove it — it’s a thirty-second fix.

4. A forgotten noindex tag

Same mechanism, different place. The “noindex” tag is a hidden instruction in a page’s code that tells Google: “don’t put this page in your index”. It’s also used during development, and it’s also sometimes forgotten at launch.

This is the classic cause of a site still unindexed months after delivery. Everything works, the site looks great, and nobody understands why Google ignores it — because the site is explicitly asking to be ignored.

Action (2 minutes): on your homepage, right-click and choose “View page source”, then search for the word “noindex” (Ctrl+F or Cmd+F). If it appears inside a meta tag, you’ve found the culprit. Search Console confirms it too: URL inspection will show “Excluded by ‘noindex’ tag”.

5. Missing or broken sitemap

The sitemap is your website’s floor plan: a file listing all your pages so Google can find them without guessing. A site can get indexed without one, but its absence slows everything down — especially for a recent site that few other websites mention.

A broken sitemap is worse than a missing one: if it lists deleted pages, wrong addresses, or an old version of the site, it sends Google straight into a wall.

Action (2 minutes): open yourdomain.lu/sitemap.xml. If the page shows a list of addresses, check they match your current pages. Then, in Search Console under “Sitemaps”, submit that address and see whether Google reports errors.

6. Your site is too slow

Speed works against you twice. First with visitors: a site that takes several seconds to display loses part of its audience before the first line is read — we broke down the mechanics in this article on slow websites. Then with Google: speed is an official ranking factor, and a very slow site gets crawled less often and less deeply.

A slow site is almost never completely invisible. But it carries a permanent handicap against faster competitors.

Action (2 minutes): test your homepage on PageSpeed Insights, Google’s official measurement tool. Look at the mobile score — that’s the one that counts. Below 50, speed is part of your problem.

7. Duplicate or copied content

Google has no interest in showing the same text ten times. If your site’s content already exists elsewhere, it picks one version — rarely yours — and ignores the rest.

The most common cases:

• product or service descriptions copied from a supplier or an old website;
• the same page repeated with only the town name changed;
• in Luxembourg, a specific trap: French, German, and English versions machine-translated from each other, without the technical tags that tell Google these are language versions of the same page.

Action (2 minutes): copy a full sentence from your homepage, paste it into Google between quotation marks, and see who else is displaying it.

8. Nobody mentions you: zero inbound links

For Google, a link from another website to yours is a vote of confidence. A site that nobody cites anywhere — not a directory, not a partner, not an article — is a site Google has no reason to trust. It may get indexed, but it will be pushed far down the results.

Luxembourg offers a genuine advantage here: the market is small, and a few relevant local citations carry real weight. Professional directories, your sector’s federations, communes, business partners, local press: every credible mention counts. And for nearby searches, a well-maintained Google Business profile changes everything — that’s the whole subject of our guide on local SEO in Luxembourg and of our SEO service in Luxembourg .

It’s that local visibility work, not a technical trick, that put Solenergie in Google’s Top 3 for its target local searches.

Action (2 minutes): search your company name in Google between quotation marks. If nobody but you mentions it, write down three places where a mention would be legitimate: your federation, a sector directory, a partner.

9. A manual penalty (rare, but worth ruling out)

This is the cause everyone fears and almost nobody has. Manual penalties hit sites that used forbidden practices: bulk-bought links, hidden text, mass-generated content. When it happens to an SME, it’s almost always inherited — the work of a former provider with questionable methods.

The upside: it’s the only cause on this list that Google tells you about in black and white.

Action (2 minutes): in Search Console, open “Security and manual actions”. If it says “No issues detected”, cross this hypothesis off and move on.

What we do at Slash.lu

If you’ve run all 9 checks and everything is green, your site doesn’t have an indexing problem — it has a ranking problem. Google knows you, but doesn’t yet consider you relevant enough to show ahead of your competitors. That can be worked on: content, structure, links, local visibility. It’s precisely the scope of organic SEO in Luxembourg .

Our approach fits in one sentence: solid technical foundations, no miracle recipes. We start with a full diagnostic — indexing, technical health, content, competition — and we tell you what’s actually blocking you, with evidence to back it up.

Let's talk about your situation. Book a call — no commitment, reply within 24h.