Content

What is a help centre (help center)?

Also known as: help center, support site, documentation site, support center, help site, support portal

Published September 10, 2026 · Last updated October 8, 2026 · Reviewed by the Fidiora team

Definition

A help centre, spelled help center in American English, is the customer-facing website where a company publishes support articles that customers can search and browse. Where a knowledge base is the content itself, the help centre is the experience around it: navigation, search, categories, contact options, and increasingly an embedded assistant.

Why it matters

A help centre is now read by three parties: customers, your own AI agent, and external answer engines. That third audience is new and underexploited. A well-structured public help centre gets your answers quoted in AI search results, which brings in demand you never paid for.

What to know

  • Search on the help centre is the highest-signal analytics on the site, because every query is an unmet need.
  • Zero-result searches are a direct list of articles to write, ranked by how many people wanted them.
  • Public help centres are indexable, so good ones earn organic traffic and AI citations as a side effect.
  • Burying the contact option to force self-service raises effort and hurts satisfaction without reducing volume.
  • Keeping the help centre on your own domain compounds the search value rather than giving it to a vendor subdomain.

An example

Example: a help centre search log shows two hundred zero-result queries for a phrase the company calls something else internally. Adding one article using the customer wording removes a recurring ticket and starts ranking in search within weeks.

Help centre vs knowledge base

The two terms are often used interchangeably. The distinction matters when choosing tools.
AspectHelp centreKnowledge base
What it is The public website customers visit for helpThe collection of articles and answers itself
Main audience Customers, and increasingly AI search enginesCustomers, agents, and AI agents that answer from it
Includes Search, navigation, categories, contact options, and often an embedded assistantArticles, FAQs, procedures, and policies
Can it be internal? Rarely. It is customer-facing by definitionYes. Many teams keep an internal knowledge base for agents
Success measure Zero-result search rate and sessions per ticketAccuracy, freshness, and coverage of top ticket topics

Common mistakes

  • Hiding the contact button to inflate self-service numbers
  • Never reading zero-result search logs
  • Organising by internal team structure rather than by customer task
  • Hosting on a vendor subdomain and losing the search equity
Where Fidiora fits

Fidiora reads your help centre as its source of truth and tells you which questions it could not answer from it. That turns your help centre from a static publication into something that improves every month based on real demand.

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FAQ

Questions

Is it help center or help centre?
Both are correct. Help center is the American spelling and help centre is the British, Canadian, and Australian spelling. They mean exactly the same thing. Use the spelling your customers use, and if you serve both markets consider covering both in page titles, since people search with either.
Should my site say help center or help centre?
Match the spelling to your main audience and use it consistently in navigation, page titles, and URLs. US-focused companies use help center. Companies serving the UK, Ireland, Australia, or Canada often use help centre. Search engines treat the two as close variants, so a single consistent spelling is better than mixing both on one site.
What does help center mean?
A help center is the self-service area of a company website where customers find answers without contacting support. It usually combines searchable articles, category navigation, and routes to contact a person. Some companies call it a support centre, help site, or support portal, but the purpose is the same.
What should a help centre include?
Articles answering the top ticket topics in customer wording, search that works, categories organised by customer task, a visible way to contact a person, and ideally an assistant that answers questions directly. Status pages and account-specific actions are useful additions for larger products.
What is the difference between a help centre and a knowledge base?
The knowledge base is the content. The help centre is the public site that presents it, including search, navigation, and contact routes. In casual use the terms are interchangeable, but the distinction matters when you are choosing tools.
Should the help centre be on my own domain?
Yes where possible. Search equity, AI citations, and brand consistency all accrue to the domain hosting the content, and a vendor subdomain gives that value away.
How do I know if my help centre is working?
Look at zero-result search rate, the ratio of help centre sessions to tickets on the same topic, and whether the topics driving tickets have current articles at all.

Related terms

Knowledge base A knowledge base is a structured collection of articles that answer customer questions about a product or service. It se... Self-service rate Self-service rate is the share of customers who resolve their issue using help content or in-product guidance without co... Knowledge gap analysis Knowledge gap analysis is the systematic identification of questions customers ask that your documentation does not answ... Ticket deflection Ticket deflection is any action that prevents a customer request from becoming a human-handled ticket. It counts help ce...
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