Professional Web glossary

Definitions beginning with H

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Definitions beginning with H

Search within this letter or use the alphabet to continue exploring the complete glossary.

16 terms displayed

Content and communication #

H1

Main HTML heading of a page. It should clearly announce the topic rather than being chosen only for visual size.

Also searched as : heading titre principal
Design, UX and accessibility #

Hamburger menu

Navigation button represented by horizontal lines and used to open a compact menu, especially on mobile.

Also searched as : menu burger
Marketing and acquisition #

Hashtag

Word or phrase preceded by # used to group or discover posts on some platforms.

Also searched as : mot dièse social
Content and communication #

Headless CMS

CMS managing content without imposing a display interface and generally distributing it through an API.

Also searched as : cms découplé
Data and measurement #

Heatmap

Heatmap visualizing areas of attention, clicks or scrolling from usage data.

Also searched as : carte de chaleur ux
Design, UX and accessibility #

Hero section

Prominent visual area at the top of a page generally presenting the main message and primary action.

Also searched as : bannière principale
SEO, search and visibility #

hreflang

Annotation linking equivalent language or regional page versions to help search engines serve the appropriate variant.

Also searched as : seo multilingue alternate
Security and privacy #

HSTS

HTTP Strict Transport Security: header instructing browsers to use HTTPS only for a domain during a defined period.

Also searched as : strict transport security
Development and code #

HTML

Markup language describing the structure and meaning of content in a Web page.

Also searched as : hypertext markup language
Web fundamentals #

HTTP

HyperText Transfer Protocol: protocol used to exchange resources between clients and servers on the Web.

Also searched as : web protocol
Development and code #

HTTP header

Metadata sent with an HTTP request or response to describe content, caching, security or expected behavior.

Also searched as : en-tête http
Web fundamentals #

HTTP status code

Numeric HTTP response code indicating the result of a request, such as 200, 301, 404 or 500.

Also searched as : code statut http
Hosting and infrastructure #

HTTP/2

HTTP version improving features including multiplexing and header compression over a connection.

Also searched as : http2
Hosting and infrastructure #

HTTP/3

HTTP version based on QUIC, designed to reduce some latency and better handle network changes.

Also searched as : http3 quic
Security and privacy #

HTTPS

Secure HTTP exchange protected by TLS to encrypt data and authenticate the server.

Also searched as : http secure tls
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Editorial method

Definitions written for people, structured for machines.

The entries are editorially reformulated in plain language, connected to stable URLs and represented with DefinedTerm structured data. They provide orientation, not a substitute for official standards, legal advice or vendor documentation.