Content Pruning: When Should You Remove, Merge, or Improve Old Pages?

Every website collects content over time. A blog you published three years ago, a service page written for an offer that has long since ended, two articles covering almost the same topic because different people wrote them months apart. This isn’t necessarily the result of bad planning – a live, active site naturally accumulates content.

The question I get asked most often at Mayfly is what a business should do with it – should they delete old pages, update them, or leave them where they are? 

The answer depends on the page. Content pruning is designed to make that decision properly, rather than relying on guesswork. It’s not about making your website smaller for the sake of it, or deleting pages that get low traffic. It’s about making the site clearer, more useful, and easier for both users and search engines to understand. 

The question I keep coming back to for any page is a simple one: if this page vanished tomorrow, what would the site actually lose? Answer that honestly, and the right decision usually follows.

TL;DR

• Content pruning is a review, not a cull. You are deciding what to keep, improve, merge, redirect, or remove, based on evidence rather than a hunch. Most fall into improve or leave alone – not remove.
• Judge a page by what it does, not what it looks like. A quiet page can still earn links, answer a key question, support conversions, or rank for long-tail searches.
• Start with a content audit. Look at traffic, impressions, rankings, backlinks, conversions, internal links, and relevance before you touch anything.
• Handle the technical follow-up properly. Use 301 redirects where there is a relevant replacement, let genuinely dead pages return a 404 or 410, and tidy up internal links and your sitemap afterwards.

What Is Content Pruning?

Content pruning is the process of reviewing the pages on your website and deciding what to do with each one. For every page, you are choosing between:

• Keeping it as is 
• Updating the content
• Merging it with something else 
• Redirecting the content to elsewhere on your site
• Removing the content.  

That is the whole idea. It is a structured review of existing content, not a single action.

The name is a bit misleading. “Pruning” makes it sound like the job is cutting things back, but a good prune is mostly about deciding what deserves attention and what is fine where it is. Removal is one possible outcome, not the goal.

In practice, the pages that tend to come up for review are the ones a site accumulates without really meaning to: old blog posts that have aged out of relevance, thin service pages that were never fully fleshed out, outdated landing pages built for a single moment, expired campaign pages, and product or category pages that no longer perform. None of these is automatically a problem. The point of pruning is to look at each one on its own merits and make a deliberate decision, rather than letting a page sit there by default because removing it never crossed anyone’s mind.

Why Content Pruning Matters for SEO

A website full of weak, outdated or overlapping pages is harder to manage and less useful for the people landing on it. It is not that old pages actively drag your rankings down; it is that they make the whole site muddier, and as a result, harder for users and search engines to make sense of.

Done well, pruning tends to help in a few connected ways. It lifts overall content quality because you put effort into the pages that deserve it, instead of spreading it thin. It cuts duplication, so you are not running three pages that half-answer the same question. It fixes outdated information, which matters for trust as much as rankings. It clarifies internal linking, so you point links at the pages you actually want to rank. And on larger sites, it improves crawl efficiency and reduces keyword cannibalisation, where your own pages stop competing with each other for the same search.

One thing worth stating plainly, because it gets oversold: deleting pages does not automatically improve your rankings. There is no magic in the act of removal itself. The benefit comes from the decisions you make around quality, relevance and structure. Deleting a page without replacing what it provided doesn’t improve your site; it just makes it smaller.

Start With a Content Audit

Before you decide anything, you need to know what you are actually looking at. Pruning should start with evidence, not a gut feeling about which pages feel old.

For each page, it is worth building a picture from a few angles: organic traffic, impressions and clicks in Google Search Console, current rankings, backlinks, conversions or enquiries, internal links, page age, content quality, and relevance to your current services. Underneath all of them sits the real question: does this page still genuinely help someone?

The Search Console Performance report is an excellent starting point, and it’s free. Pair it with a crawl of the site so you can see the pages as a collective rather than one at a time. Tools like Screaming Frog are designed to pull every URL’s status and metadata into one view, for you to methodically work through. Ahrefs also has a solid walkthrough of their content audit process worth reading alongside this.

Here is the point I labour with clients, because it is where most bad decisions start: a low-traffic page is not automatically a bad page. Traffic is one signal, not the verdict. A page might get barely any visits and still support conversions, answer an important niche question, or hold a backlink that props up the wider site. The audit exists so you judge each page on the full evidence, not on the single number that is easiest to look at.

When Should You Improve an Old Page?

Improvement is usually the right call, and it’s often the one people reach for least, as deleting feels more decisive. But if a page still has a clear purpose, updating it almost always beats removing it. You keep whatever authority, links, and history the page has built up, and you make it better rather than starting from nothing. Google’s own data backs this up: refreshed content tends to outperform brand-new pages on the same topic, because you are building on an existing foundation instead of starting fresh. 

I lean towards improving a page when the topic is still relevant, it earns impressions but poor clicks, rankings have slipped because the content stood still while competitors moved on, the information is out of date, the page doesn’t fully answer its question, search intent has shifted, or it supports an integral service or product.

The fixes are usually straightforward. Update the outdated advice. Add clearer headings so the page is easier to scan. Expand the thin sections. Rewrite the title and meta description so they earn the click the impressions suggest is there. Add internal links both ways. Bring in proof, examples, or FAQs. And align the content more closely with what someone is looking for.

When Should You Merge Pages?

Merging comes into play when two or more pages cover the same ground and, in effect, compete with each other. Instead of several decent pages splitting attention, you combine them into one strong page that does the job properly. It is often the most valuable move in a prune, because you are not just tidying up; you are consolidating strength into a single place.

Merging tends to make sense when several blog posts answer the same question, when two service pages target the same intent, when older pages overlap with newer and stronger content, when rankings are split across similar URLs, or when internal links are scattered across competing pages. The goal is for the merged page to become the best version of that topic on your site. You take the strongest material from each old page, combine it, fill the gaps, publish, and then redirect the old URLs so their history and links flow into the new destination.

The caveat worth holding onto: merging only works if you actually improve the final page. Staple three mediocre posts together and call it a guide, and you have gained nothing. The value is in the consolidation being a genuine upgrade, not a tidier filing system.

When Should You Remove a Page?

Removal is the right call when a page no longer serves a useful purpose, and there is nothing relevant to fold it into. This is the smallest of the four buckets in most audits, not the largest, which is worth remembering given that “pruning” makes deletion sound like the main event.

Consider removing a page when the content is outdated with no way to revive it, it has no traffic, backlinks or conversions, the topic is no longer relevant to the business, it provides very little information, the content is duplicated elsewhere, or it was built for a campaign that has long since ended.

What happens next comes down to one question: is there a relevant replacement? If there is, redirect the old URL to it so any value carries across. 

If there genuinely is not, letting the page return a proper 404 or 410 is perfectly acceptable. Not every removed page needs a redirect, and forcing one to an unrelated page does more harm than good. A clean example is an expired campaign page for a promotion that ended eighteen months ago: no traffic, no links, no ongoing relevance, and nothing on the site it sensibly maps to. Nothing to improve, nothing to merge, so you remove it and let it 404. That is removal working exactly as it should.

When Should You Leave a Page Alone?

This section exists to stop you over-pruning, because it is the trap I see most. Once you are in the mindset of reviewing pages, it is easy to start hunting for things to cut. Leaving a page alone is a legitimate, deliberate decision, not a failure to act.

A page is often worth keeping exactly as it is when it supports a niche but valuable audience, brings in occasional high-quality leads, holds strong backlinks, answers a genuine customer question, props up your internal linking, ranks for long-tail searches, or matters for trust, proof or compliance. 

Come back to the test from the top: if this page vanished tomorrow, what would the site lose? If the answer is “something”, leave it be and move on.

A Note on AI Overviews and Citations

Pages can earn value by being cited in AI Overviews and by large language models, rather than by just ranking in the classic blue links. Before you remove or merge a page, it is worth a quick check on whether it is being pulled into AI-generated answers or referenced as a source. A page with modest clicks might still be doing quiet work as a citation, and that is exactly the kind of value the crude traffic number will miss.

Redirects, 404s, and Internal Links

Once you have made your decisions, the technical follow-up is what makes them stick. Get this wrong and a good prune can create broken journeys and lost signals.

Use 301 redirects when a page has a relevant replacement, so its history and link value pass to the new destination. Do not redirect everything to the homepage, though, because a redirect to an irrelevant page is treated much like a soft 404 and helps no one. When there is no useful replacement, let the page return a clean 404 or 410, which is the correct outcome rather than a failure. 

After removing or merging, repoint the internal links that pointed at the old URLs so you are not sending people through unnecessary redirects or into dead ends, and remove the deleted URLs from your XML sitemap so it only lists live, indexable pages. Finish with a quick recrawl to catch anything you missed before users or search engines do.

Common Content Pruning Mistakes

Most pruning that goes wrong fails in the same predictable ways:

• Deleting pages just because traffic is low.
• Removing pages without checking backlinks.
• Redirecting unrelated pages to commercial pages.
• Deleting old blogs that still support long-tail traffic.
• Merging pages without improving the final page.
• Ignoring conversions and lead quality.
• Forgetting to update internal links.
• Not checking Search Console after the changes.
• Treating pruning as a one-off job rather than something you return to.

Nearly all of them share the same root cause: acting on a single number, or the instinct to delete, instead of the full picture. Slow down during decision-making, and you’ll avoid common mistakes.

Bringing It All Together

Content pruning is about making better use of what you already have. It is not a cull, or focused on shrinking your site to look leaner. It is a structured review that helps you exert effort where it counts.

Every old page comes down to one of four decisions. Some should be improved, because they still have a clear purpose and just need bringing up to date. Some should be merged, where several overlapping pages would serve people better as one strong guide. Some can be removed, once there is genuinely nothing to improve and nothing to merge them into. And plenty should be left alone, because a quiet page can still be doing valuable work. Judge each page on usefulness, relevance, performance and business value, and keep asking what the site would lose without it.

If you would like a hand working through your own pages, this is exactly the kind of work we do as part of a wider content-pruning and technical SEO audit process at Mayfly. But whether you bring someone in or do it yourself, the approach is the same: review with intent, and let the evidence tell you what each page deserves.