A blog is a part of a website where articles, called posts, are published one at a time and usually listed newest first. On a business website, the blog is where you share advice, answer common customer questions and post updates, separate from fixed pages like Services or Contact.
How a blog on a website is structured
A blog normally has an index page listing recent posts, an individual page for each post with its own URL, and often categories or tags that group related posts. Each post carries a title, a publish date, an author and the article itself. Posts are usually written in a CMS such as WordPress, Ghost or a site builder's editor, so you can publish without touching code. Many blogs also produce an RSS feed, a machine-readable list of new posts that readers and other tools can subscribe to.
The word comes from "weblog", the online diaries of the late 1990s. Business blogs today look much less like diaries and much more like a library of useful articles.
What a blog does for SEO
Your service pages can only target a handful of searches. A blog lets you publish a page for each specific question customers ask, which is how sites pick up long-tail searches like "how often should a boiler be serviced". Each good post is another page Google can index and rank, another thing other sites can link to, and a natural place to link to the relevant service. Search engines do not rank a site higher simply for having a blog or posting often; the individual posts have to be genuinely helpful.
Example: a blog that earns its place
An electrician writes posts such as "Why does my RCD keep tripping?", "What an EICR inspection checks" and "Do I need a new consumer unit to fit an EV charger?" Each explains the issue honestly, says what a homeowner can safely check, and ends with when to call a professional, linking to the booking page. Over time these posts bring in people with exactly the problems the electrician fixes.
When a blog is worth it
A blog helps if customers search for information before buying and you can write from real experience. It is not worth starting if you will post twice and abandon it; a blog whose newest entry is three years old makes the business look closed. In that case, put your best answers into a FAQ section or a few solid guide pages instead.
Blogging mistakes to avoid
- Posting news nobody searches for. "We attended a trade show" helps no reader.
- Thin, copied or mass-generated posts. These add little and can drag down how Google sees the whole site.
- Several posts on the same question. They compete with each other; update one strong post instead.
- No internal links. Every post should point readers to the page where they can act.
Related terms
- Content marketing: the strategy a business blog usually serves.
- CMS: the software most blogs are written and published in.
- Evergreen content: posts that stay relevant for years.
- SEO: the main reason businesses keep a blog.