Conversion and UX

Hero Section

Also called hero banner, hero image, hero area

The first large block at the top of a web page, usually a headline, short supporting text, a main button and an image.

Quick facts: Hero Section

Category
Conversion and UX
Also called
hero banner, hero image, hero area
Level
Beginner
Affects
Bounce rate, conversion rate, Largest Contentful Paint, message match with ads
Where to see it
Your own phone, PageSpeed Insights, Chrome DevTools, heatmaps and scroll maps, five-second tests
In this article4
  1. How a hero section works
  2. Why it matters
  3. Common mistakes
  4. How to act on it

The hero section is the first, usually largest, block at the top of a web page: typically a headline, a sentence or two of supporting text, a main button and often an image or video. It is what visitors see before they scroll, and it decides whether they stay long enough to read the rest.

How a hero section works

A visitor arriving from Google, an ad or a social post makes a quick judgement: am I in the right place, is this for someone like me, and is it worth my time? The hero’s job is to answer all three. A strong one usually contains:

  • A headline that says what you offer in the customer’s words, not a slogan.
  • A supporting line naming who it is for and the main benefit or difference.
  • One primary call to action, with an optional quieter secondary one.
  • A relevant image: the product, the work in progress, the finished result. Stock photos of handshakes add nothing.
  • Where it helps, a short trust cue such as a review rating, an accreditation the business genuinely holds, or the area you cover.

Because it sits above the fold, the hero also carries technical weight. Its image is often the largest element on screen, which makes it the element Google measures for Largest Contentful Paint (LCP), one of the Core Web Vitals. A heavy, uncompressed image or an autoplaying background video can make the page feel slow before the visitor has read a word.

Why it matters

Most visitors decide within moments whether to stay. If your hero says “Welcome to our website” or “Excellence in every project”, the visitor has to scroll and work out what you do, and many will not bother. A clear hero means fewer people bounce straight back to the search results, which matters even more when each of those visits costs you money through Google Ads or Meta ads.

On a landing page, the hero also has to deliver message match. If the ad promised “Same-day boiler repair in Croydon”, the headline should repeat that promise rather than open with the company’s history.

Common mistakes

  • Clever or abstract headlines that make sense only to the business owner.
  • Image sliders and carousels. Visitors rarely wait for the second slide, and each slide adds weight to the page.
  • Several buttons of equal prominence competing for the same click.
  • A tall image pushing the headline and button below the visible screen on phones.
  • Text laid over a busy photo with weak colour contrast, which is hard to read and fails accessibility checks.
  • Hero images set to lazy-load, or added as CSS backgrounds without preloading, which slows LCP.

How to act on it

Open your key pages on a phone and look only at what appears before you scroll. Ask someone who does not know your business to tell you, after ten seconds, what you do, who it is for and what they would do next. If they cannot, rewrite the headline and supporting line before touching the design.

Then tidy the build: one primary button with a specific label (“Get a quote”, “Book a free call”), an image that is compressed, sized properly for mobile and not lazy-loaded, and text that stays readable on a screen 375 pixels wide. If the page receives paid traffic, write a hero for each main ad theme rather than sending every campaign to one generic page. Writing and testing heroes that match their ads is a large part of my work on landing pages for Google and Facebook ads.

Do and do not

Do

  • Say what you offer and who it is for in the headline
  • Keep one primary button with a specific label
  • Compress and preload the hero image

Do not

  • Use a carousel of rotating slides
  • Open with a slogan or a welcome message
  • Let the image push the button out of view on phones

Questions people ask about this

Should a hero section include a video?

Only when the video shows something a still image cannot, such as a product in use. Autoplaying background videos are heavy, can slow the page noticeably on mobile data and rarely add meaning. If you use video, give it a lightweight poster image and let visitors choose to play it.

How long should a hero headline be?

Short enough to take in at a glance, which usually means under about ten words, and specific enough to say what you do. A plain headline such as "Commercial cleaning for offices in Leeds" nearly always beats a clever one. Use the supporting line underneath for the detail.

Are image sliders bad for a hero section?

In most cases, yes. People rarely see slides beyond the first, the movement distracts from the headline and button, and several large images slow the page down. One strong, relevant image with a clear message does the job better.

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