Technology, explained clearly. Find a term, choose a letter or narrow the topic. Definitions include sources and their review date.
An AI assistant and model family developed by xAI. Tools can support research and content generation, depending on availability. An advertised conversational style is not evidence of accuracy; outputs still need verification.
Definition and sourcesAn approach to growth through rapid, measurable product and marketing experiments. It needs suitable metrics; a temporary traffic spike does not prove durable growth.
Definition and sourcesA website performance-testing service with defined test conditions. Results depend on location and device profile and do not replace real-user data.
Definition and sourcesAn interface using visual elements such as windows, buttons and menus. GUI is one form of user interface. Other interfaces can be text-based or voice-based.
Definition and sourcesA lossless compression format used in HTTP among other contexts. It reduces text-resource transfer but requires compatible client and server support.
Definition and sourcesA three-line-icon button opening navigation. It needs an accessible name, expanded-state information and correct keyboard operation.
Definition and sourcesA permanent delivery failure, such as a nonexistent address. The contact usually needs removal from active sending or correction.
Definition and sourcesStorage using rotating magnetic platters. Mechanical access affects latency; capacity, reliability and performance depend on the specific model.
Definition and sourcesA word or phrase preceded by # to label a topic. Search and distribution behaviour depends on the platform.
Definition and sourcesAn architecture separating the storefront from commerce services through APIs. It offers presentation flexibility but adds integration, SEO and frontend-maintenance responsibilities.
Definition and sourcesDesigning a service to limit disruption despite component failures. Redundancy needs tested failover and removal of single points of failure; it does not eliminate risk.
Definition and sourcesProviding resources needed to operate a website or application. Hosting involves more than storage: computing, networking and maintenance matter. Selection depends on project requirements and the provider's responsibilities.
Definition and sourcesMarkup identifying alternative language or regional versions. It should point to genuine equivalents with reciprocal consistency; it does not translate content automatically.
Definition and sourcesAn Apache configuration file affecting a directory when the server permits overrides. It can control redirects and access. It is not universal to every hosting server; Nginx does not read it like Apache.
Definition and sourcesA markup language describing the structure and meaning of web content, including headings and forms. HTML is not a general-purpose programming language. CSS and JavaScript commonly provide styling and interactivity.
Definition and sourcesThe h1–h6 elements express content hierarchy, not font size. One principal h1 is a clear editorial convention. The number of h1 elements is not a simple Google ranking rule.
Definition and sourcesAn imprecise colloquial name for HTML's title element, not a meta tag. It names the page; Google may generate a different result title.
Definition and sourcesAn application protocol using requests and responses, including for websites and APIs. It defines methods, headers and statuses. Protocol statelessness does not prevent applications from implementing sessions.
Definition and sourcesAn HTTP status indicating a resource has moved permanently. The server normally provides the new address in Location. It is a redirect, not an error, and does not guarantee preserved search rankings.
Definition and sourcesAn HTTP status indicating a temporary redirect while the original address remains the reference. It is not an error. Indexing effects depend on context rather than a blanket rule that 302 never affects search.
Definition and sourcesAn HTTP response indicating missing valid authentication. The server should provide a WWW-Authenticate challenge; it differs from a 403 permission refusal.
Definition and sourcesAn HTTP status indicating that the server refuses the request, possibly because of permissions or access rules. A TLS certificate failure is not a 403 response. Resolve permissions with the administrator instead of bypassing protections.
Definition and sourcesAn HTTP status indicating that a resource was not found or its existence is not disclosed. Check addresses and links. DNS failure happens at a different stage and is not itself an HTTP 404 response.
Definition and sourcesAn HTTP status for the server timing out while waiting for the client's request. It differs from 504, involving a gateway waiting for another server.
Definition and sources