What Is a Microsite?

A microsite is a small, focused website, usually a handful of pages, built for one campaign, product, event, or brand and kept separate from your main site. Cambridge Dictionary calls it "a small website, usually one advertising a particular product or service for a company" (Cambridge Dictionary, checked October 2026). It often lives on its own domain or a subdomain, which is what makes it both useful and risky.

How a microsite works

A microsite is a self-contained mini-site with its own pages, look, and often its own address. It runs independently of your main website, so it can carry a different design and a single, narrow purpose without touching the parent brand.

Brightspot describes a microsite as "a distinct, self-contained mini-website that functions independently from a company's primary website" (Brightspot). Mailchimp frames the job by what it promotes: "a company's products, services, campaigns, events, or entire brand" (Mailchimp).

The scope is the defining trait. A microsite covers one thing deeply, then stops, rather than trying to be the whole business.

Microsite, landing page, or main website?

A microsite sits between a single landing page and a full website in size and purpose. The three are easy to confuse, so it helps to line them up.

	Landing page	Microsite	Main website
Size	One page	A few related pages	Your full site
Purpose	One action	One campaign or theme	Everything you do
Address	A page on your site	Often its own domain	Your primary domain
Lifespan	As long as the offer runs	The campaign, then retired	Permanent

A single landing page captures one action, like a sign-up. A microsite tells a fuller story around one theme across a few pages. Your main site does the rest, the day-to-day home covered in the pages a business website needs.

The SEO trade-off nobody warns you about

A microsite on a separate domain builds its authority from scratch, which is the catch most owners miss. A microsite on its own domain has to earn its rankings from scratch. It also does little to strengthen your main site.

That is the mechanism worth understanding before you commit. Split your presence across two domains and you split the search authority you are trying to build. Each address then competes for the same brand instead of reinforcing it.

A subdomain or a subfolder on your existing site can share more of that strength, because it stays closer to the domain you have already grown.

In our experience, owners judge a microsite by how it looks on launch day. Only later do they notice it earns little in search, the same trap as judging any one-page site by its design alone.

When a microsite is worth building

A microsite earns its place when a campaign genuinely needs its own space and a short life. A product launch, an event, a limited promotion, or a standalone brand can all justify one, because the focus and the separate look are the point.

It is the wrong tool for evergreen core content. Anything you want to rank and keep, like your services or your main story, belongs on your primary site, where it feeds one domain instead of starving it.

A small microsite is a modest build, closer in scope to a built landing page than to a full site.

Frequently asked questions

What is the difference between a microsite and a website?

A microsite is small and single-purpose, built around one campaign, product, or event, and often on its own address. A main website covers everything your business does and is meant to last. The microsite is a focused offshoot; the website is the permanent home. Many microsites are retired once their campaign ends, while the main site stays.

Is a microsite good or bad for SEO?

It depends on where it lives. A microsite on a separate domain has to build its rankings from scratch and does little to strengthen your main site, so it can split your visibility. A microsite on a subdomain or subfolder of your existing site keeps that authority closer together. For lasting rankings, a subfolder usually beats a separate domain.

How many pages does a microsite have?

Usually a few, not dozens. A microsite is defined by its narrow focus, so it tends to run from two or three pages up to a small handful covering one theme. If it grows to cover your whole business, it has stopped being a microsite and become a full website. The small scope is the feature, not a limitation.

Does a microsite need its own domain?

No, and often it should not have one. A microsite can live on its own domain, a subdomain, or a subfolder of your main site. A separate domain looks distinct but splits your search authority. A subfolder or subdomain keeps the campaign close to the site you have already built, which is usually the wiser choice for how you use your domain.

Is a microsite the same as a landing page?

No. A landing page is a single page built for one action, such as a sign-up or a purchase. A microsite is several pages telling a fuller story around one theme. A landing page is often part of a campaign; a microsite can be the campaign itself. The difference is scope, not quality.

Deciding whether a microsite is the right move

Storming Solutions builds and maintains websites for Malaysian businesses, from Kuala Lumpur, and runs SEO, AEO, and GEO so those sites get found. We build microsites where a campaign truly needs its own space. When a page or a section of your main site would serve you better and rank sooner, we will say so.

Weighing a microsite for a launch or an event? Tell us what the campaign is. Our web development work then weighs a microsite against a landing page or a fresh section on the site you already own.