IT Glossary & Dictionary

A security solution that filters and monitors HTTP traffic between a web application and the internet, blocking common attacks.

The := operator that assigns a value to a variable as part of an expression, introduced in Python 3.8.

The practice of designing websites that can be used by people with disabilities, following WCAG guidelines.

A binary instruction format that enables near-native performance execution of code in web browsers alongside JavaScript.

Techniques for storing copies of web resources at various levels to reduce server load, bandwidth, and response times.

A set of browser-native APIs for creating reusable, encapsulated custom HTML elements with their own styling and behavior.

Techniques for loading custom fonts efficiently to minimize their impact on page load performance and visual stability.

A mechanism where a server sends real-time HTTP POST notifications to a specified URL when specific events occur.

A security mechanism that verifies webhook payloads are authentic and unmodified using cryptographic signatures.

Techniques to make websites load faster and respond more quickly, improving user experience and search engine rankings.

A communication protocol that enables full-duplex, real-time data exchange between a browser and server over a single connection.

Google's metrics for measuring user experience quality, including loading speed, interactivity, and visual stability of web pages.

A command-line utility for downloading files from the web, supporting HTTP, HTTPS, and FTP protocols.

An SQL function that performs calculations across a set of rows related to the current row without collapsing the result set.

A modern, lightweight VPN protocol that uses state-of-the-art cryptography and minimal code for fast, secure tunneling.

A technique where changes are first written to a log before being applied to the database, ensuring crash recovery and data integrity.