Does Blogging Help SEO?

Summary: Yes, but only under conditions most business blogs do not meet. A blog helps SEO when its posts target questions people search for, answer them better than the pages already ranking, and link into the service or product pages they support. A blog of company news, generic tips and posts written to a schedule does nothing for rankings and can hold a site back. The question is not whether to blog but whether each post has a search behind it.

Blogging has been sold to businesses as an SEO essential for twenty years, and in that time most business blogs have earned nothing from search. Both things are true. A blog can be the most effective part of a site’s SEO, and the same blog, run the usual way, can be dead weight. This article sets out what a blog actually does for SEO, when it does nothing, and what we see across the sites we work on, so you can decide whether yours is worth the time.

What a blog does for SEO, when it works

It ranks for the questions customers ask before they buy

Service and product pages rank for commercial searches: “boiler repair Preston”, “business insurance quote”. They cannot sensibly rank for the questions people ask on the way there: “how often should a boiler be serviced”, “what does public liability insurance cover”. Those searches are numerous, specific and low-competition, and a blog post is the right format for each one. A business whose posts answer them is in front of the customer before the competitor is.

It builds authority on the subject

Google rates sites that cover a subject thoroughly above sites that touch it once. A set of posts on the questions around a service, linked to each other and to the service page, is how topical authority is built, and it lifts the service page as well as the posts. This is the most important thing a blog does and the one most blogs never do, because the posts are not planned as a set.

It gives the site something worth linking to

Nobody links to a service page. People link to guides, data, tools and explanations. A blog is where a business publishes the things that earn links and citations, which raise the authority of the whole domain. Our guide to backlinks covers what counts.

It keeps the site’s internal links working

Every post is a chance to link to a service page with descriptive anchor text, from a page that is relevant to it. A site with forty posts, each linking to the right service page, has given Google forty signals about what that page is for. Our guide to internal links explains why that matters more than most businesses realise.

It gets the business cited by AI

AI Overviews and AI assistants answer the research questions that blog posts address. The posts that get cited are clear, well-structured answers from identifiable sources. A business with no such content has nothing for an AI system to cite. Our guide to getting your website cited by AI covers the specifics.

When blogging does nothing for SEO

Most of the time, in our experience. The usual reasons:

• The posts have no search behind them. Company news, event write-ups, “five tips for spring”, opinion. Nobody searches for them, so nothing ranks.
• The posts have a topic but not a target. “Thoughts on kitchen design” rather than “how much does a kitchen extension cost”. Without a specific phrase, the post competes for nothing.
• The posts are generic. The same advice as the ten pages already ranking, with nothing the business actually knows added. Google has no reason to rank the eleventh version.
• The posts are not linked to anything. No link to the service page, no link from the service page, no cluster. Each post is an island, and Google rates islands poorly.
• There are too many of them. A blog that has been fed weekly for five years has 250 posts, of which 200 earn nothing. Google’s recent updates treat that volume of thin content as a signal about the whole site.
• They were written for freshness. The belief that Google rewards regular publishing is largely a myth. Google applies freshness to queries that need it (news, events, prices); for most business topics, a post from 2023 that answers the question ranks above a post from last week that does not.

A blog with these problems is not neutral. It dilutes the site, spreads internal links across pages that do not deserve them, and gives Google a site that is mostly weak content. Removing or merging those posts often helps rankings more than adding new ones.

What we see across client sites

When we take on a site with an established blog, we crawl it and pull Search Console data for every post. The pattern is consistent enough to predict:

• A small number of posts, usually under ten, earn almost all the blog’s search traffic. They are the ones that happen to answer a real question.
• The majority of posts earn nothing: no clicks in six months, often no impressions. They were written to a calendar, not to a search.
• The service pages have fewer internal links than the blog posts, because the blog links to itself and nothing links to the services.
• The best-performing posts are rarely the most recent. Age is not the problem; targeting is.

Our own site was no exception. Before we consolidated it, more than half of its pages had earned no clicks in six months, most of them blog posts on overlapping topics. Merging them into fewer, stronger pages was the first thing we did, and it is the first thing we do on client sites too. The blog that helps SEO is usually smaller than the one that does not.

Blog or no blog? A quick test

What a blog that helps SEO looks like

1. Every post targets a phrase people search for, chosen from keyword research, customer questions and Search Console.
2. Every post answers its question better than the pages ranking for it, with something the business actually knows.
3. Posts are planned in clusters around a main guide, not published one at a time on whatever came up.
4. Every post links to the service page it supports, and the service page links to the posts that answer its customers’ questions.
5. Posts are refreshed when they are close to ranking and merged or removed when they are not.
6. Success is measured on impressions, position, clicks and enquiries, not on views or publishing frequency.

Our guide to blog SEO covers how to do each of those, and our guide to SEO content covers the planning that comes before. Length and frequency are the two questions people ask most; our article on whether article length matters for SEO answers the first, and the short answer to the second is: as often as you can do it properly.

Not sure what your blog is doing?

If you would like a view of what your blog is doing for you, our SEO packages include a content audit, and we offer a free SEO audit to start.

Frequently asked questions

See also, our complete guide to SEO for UK businesses.