unvibe
Guide · October 7, 2026

A homepage headline AI can understand

The first line of your homepage is the one AI is most likely to quote when it describes you. If it is a slogan, the assistant has to guess what you do, and a guess is how businesses end up described wrongly or not at all. Here is how to write one that works for people and machines.

By the Unvibe team · 6 min read

Short answer: Write the headline so that someone who has never heard of you could say what you are, who it is for and what you do after reading one line. A reliable formula is “[What it is] for [who] that [does what]”. Keep the slogan, but put it second. Make sure the headline is a real <h1> in the HTML, not text inside an image or drawn by JavaScript. Unvibe reads your homepage like an AI does and tells you when it cannot work out what you are.

Why slogans fail

Headlines like “Work, reimagined” or “Where ideas happen” are made for people who already know the product from an ad, a friend or a logo. A language model reading your homepage has only the page. It looks for a sentence that states what you are. If the headline does not, it searches the rest of the page, and if that is vague too, it fills the gap with the most likely category. That is how a real business ends up described as the wrong thing, or left out of an answer because the assistant could not tell it fits the question.

The formula

[What it is] for [who] that [does what].

It is not poetry, and it does not have to be your final line. It is the sentence that makes sure nothing important is missing. Then you can write the version that sounds like you around it.

SloganClear headline
Work, reimagined.Task management for small teams that keeps every project in one place.
Your smile, our passion.Family dentist for adults and children, with same-day emergency appointments.
Money, but make it simple.Invoicing software for freelancers that sends reminders so you get paid on time.
Made with love.Handmade stoneware mugs and bowls, made to order and shipped worldwide.

The examples are made up. Yours must say only things that are true and that your page backs up further down.

Where to put the slogan

Keep it. Use it as the line under the headline, or as a short tagline in the logo area. A person gets the feeling, a machine gets the facts. You do not have to choose.

Make sure it is real text

The ten-second test

Show the headline alone to someone outside your industry for ten seconds. Ask what the company sells and who it is for. If they cannot say, an AI probably cannot either. Another check: copy the headline into an assistant and ask “What kind of business writes this?” If the answer is generic, so is the headline.

This is the first step of being understood. The next ones are making sure AI knows what your business is and answering the questions customers ask before they choose you.

Where Unvibe fits

You can run the ten-second test yourself. Unvibe runs a version of it on every checkup.

Unvibe

Does your homepage say what you are?

  • Reads the page like AI does: works out what market you are in from your own pages and quotes the sentence it used.
  • Says when it is guessing: if the pages do not make it clear, the checkup says so instead of pretending.
  • Flags template leftovers: default titles and descriptions that say nothing.
  • Suggested starting point: a title, description and headline built from how AI read your pages, for you to check and edit.

Check my homepage

The identity check and how it decides are explained in the methodology docs.

Questions

Do I have to give up my brand voice?

No. Put the clear sentence in the headline and the voice in the line below or the rest of the page. Both can sit above the fold.

How long should the headline be?

Short enough to read at a glance, usually under about 12 words. If it needs more, move the detail into the first paragraph.

Does this help ordinary Google SEO too?

Yes. A headline that names what you are and who it is for matches what people search, and search engines use it to understand the page.

Does your homepage say what you are?

Free to start. Fixes ready for your coding agent.

Check my app