Glossary
The words these pages use, said once and plainly
Each term has its own short page: what the word means anywhere, then what it means in BackendFree.
Web analytics
AI crawler
A program that reads web pages for an AI company: to train a model, to build an answer index, or to fetch a page somebody asked about.
/glossary/ai-crawler/
Bookings
Buffer
Time blocked before or after an appointment, for setting up, cleaning down or travelling, which the customer does not book.
/glossary/buffer/
Payments
Deposit
Part of the price paid when somebody books, so that a slot is not taken and then left empty.
/glossary/deposit/
Concept
Headless CMS
A content system with no website attached: the content is changed in one place, and a website built separately reads it through an API.
/glossary/headless-cms/
Developers
Idempotent
Safe to do twice: doing something again changes nothing that doing it once did not.
/glossary/idempotent/
Concept
Instant
A moment that means the same thing everywhere, written with its offset from UTC rather than as a time on a wall clock.
/glossary/instant/
Developers
Publishable key
An API key made to be seen: safe in a web page, because it can only do what any visitor to that page could.
/glossary/publishable-key/
Web analytics
Referrer
The address of the page a visitor followed a link from, as their browser reports it. Some apps and browsers send none.
/glossary/referrer/
Developers
Secret key
An API key that stays on a server, because it reads every booking with its customer, and every payment.
/glossary/secret-key/
Developers
Webhook
A message one system posts to another's server when something happens, so the second does not have to keep asking.
/glossary/webhook/