Spelling mistakes on your website: what they cost

Key takeaways

Spelling mistakes on a business website cost credibility because visitors read them as a sign of carelessness that may extend to the work. The Stanford guidelines for web credibility list avoiding errors of all types as a core principle. The most damaging errors sit in headings, buttons and the first screen, where every visitor sees them.

• Visitors read small errors as a sign of carelessness in the business.
• Errors in headings and buttons do the most damage.
• Spell-checkers miss wrong words that are spelled correctly.
• A read-aloud check of key pages catches most errors in an hour.

Do spelling mistakes really affect credibility?

Yes. Spelling mistakes affect credibility because they are easy to notice and hard to excuse. Fogg's prominence-interpretation theory explains why: a visible error is noticed by many visitors and interpreted as a sign of low care. For a business selling accuracy or expertise, such as accountants, solicitors or engineers, the damage is greater.

• How website design influences brand credibility
• Prominence-interpretation theory: what visitors notice

Where do website errors usually hide?

Errors cluster in places owners rarely reread. A quarterly check of these areas catches most of them.

• Headings and buttons written in a hurry.
• Page titles and meta descriptions shown in Google.
• Form labels, error messages and thank-you pages.
• Image alternative text and captions.
• Old blog posts and location pages copied from a template.

• Placeholder text left on a live website: find and fix it
• Alt text for business website images: how to write it

How do you proofread a website properly?

Use three passes. First, a spell-checker or grammar tool set to UK English. Second, read every key page aloud, slowly, which catches wrong words and missing words that tools miss. Third, ask someone outside the business to read the homepage and service pages on a phone. Fix and re-check before publishing new pages.

• Website launch checklist: before, during and after
• Website audit checklist for small businesses

Does UK or US spelling matter?

For a UK business selling to UK buyers, consistent UK spelling matters, because US spellings such as 'color' or 'optimize' can make the site look imported or template-made. Mixed spellings look careless. Set your editor and tools to UK English and choose one convention for words like 'enquire' and 'inquire'.

• Tone of voice for your website: sound like a business
• Jargon on your website: why experts want plain words too

When are small errors less important?

Errors deep in old blog posts matter less than errors on the homepage, but they still appear in search results and AI answers. Typos in user comments or reviews are not your errors; do not edit customers' words. Focus effort on pages that visitors see before enquiring.

• An abandoned blog on your website: fix, freeze or delete?

What does this look like in practice?

A pattern we see: a firm's main call-to-action button reads 'Get a qoute' and has done for months because nobody reads buttons closely. Every visitor ready to enquire sees it at the moment of decision. A five-second fix removes a doubt at the worst possible place.

• See client work
• Website Design & Development for UK businesses

Website proofreading checklist

• Set spelling tools to UK English.
• Read headings, buttons and forms aloud.
• Check page titles and meta descriptions.
• Ask an outsider to read key pages on a phone.
• Re-check every new page before publishing.

• The website credibility score: rate your site out of 10
• Website credibility quick wins you can make this week

Next step

Read every button and heading on your homepage aloud today. It takes ten minutes and catches the most visible errors.