Reference
Web Glossary
Clear definitions for web development, SEO, security and networking terms.
DevelopmentNetworkingSecurityWritingCSSSEOHealth
APIDevelopment
Application Programming Interface — a set of rules allowing software applications to communicate.Base64Development
An encoding scheme that converts binary data to ASCII text using 64 characters.BMIHealth
Body Mass Index — a measurement calculated from height and weight to estimate body fat.CIDRNetworking
Classless Inter-Domain Routing — a method for allocating IP addresses and routing using variable-length subnet masking.CSS GridCSS
A two-dimensional layout system for CSS that handles both rows and columns simultaneously.DNSNetworking
Domain Name System — translates human-readable domain names into IP addresses.FlexboxCSS
CSS Flexible Box Layout — a one-dimensional layout model for arranging items in rows or columns.HMACSecurity
Hash-based Message Authentication Code — a mechanism for verifying message integrity and authenticity using a shared secret key.HTTPNetworking
HyperText Transfer Protocol — the foundation of data communication on the World Wide Web.IP AddressNetworking
A unique numerical label identifying a device on a network, used for routing communications.JSONDevelopment
JavaScript Object Notation — a lightweight text format for data interchange.JWTSecurity
JSON Web Token — a compact, URL-safe token format for securely transmitting information between parties.MarkdownWriting
A lightweight markup language using plain text formatting syntax that converts to HTML.Open GraphSEO
A protocol developed by Facebook that controls how URLs appear when shared on social media.RegExDevelopment
Regular Expression — a sequence of characters defining a search pattern for string matching.SHA-256Security
A cryptographic hash function producing a 256-bit digest, part of the SHA-2 family.SSLSecurity
Secure Sockets Layer — the predecessor to TLS. Used to encrypt communications between a browser and server.Unix TimestampDevelopment
The number of seconds elapsed since January 1, 1970 00:00:00 UTC.URL EncodingDevelopment
Percent-encoding of special characters in URLs to ensure safe transmission.UUIDDevelopment
Universally Unique Identifier — a 128-bit label used to uniquely identify information in computer systems.Explore Our Full Glossary
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