OAuth
A framework for delegated resource access without giving the client the user's password. OAuth alone does not define sign-in; identity often uses OpenID Connect.
Definition and sourcesKNOWLEDGE / FROM A TO Z
Glossary
Technology, explained clearly. Find a term, choose a letter or narrow the topic. Definitions include sources and their review date.
Terms 19 / 685
Clear filtersObject storage
Storing data as objects with identifiers and metadata, usually through APIs. It is not equivalent to a local disk with identical file semantics.
Definition and sourcesObservability
The ability to infer system state from signals such as logs, metrics and traces. It needs relationships between data, not merely many dashboards.
Definition and sourcesOCSP stapling
A server attaching a signed certificate-status response during TLS. Usefulness depends on certificate, authority and client support.
Definition and sourcesOctober CMS
A Laravel-based CMS offering themes and plugins. Product and update access depend on the current licence and version.
Definition and sourcesOff-page SEO
Activities outside a website supporting recognition and signals, such as mentions and links. They should reflect genuine value rather than ranking manipulation.
Definition and sourcesOn-page SEO
Improving page content, structure and elements for users and search engines. It extends beyond placing a keyword in a heading.
Definition and sourcesOne-page website
A site or presentation placing its main content in a single document, often with section links. This is an information-architecture choice, not a synonym for a single-page application or a guarantee of speed.
Definition and sourcesOPcache
PHP's mechanism caching compiled bytecode in shared memory. It reduces repeated parsing; deployments need correct cache freshness handling.
Definition and sourcesOpen Graph
A metadata protocol describing a page, such as its sharing title and image. Platforms may interpret and cache previews under their own rules.
Definition and sourcesOpenCart
An online-store platform with catalogue, cart and extensions. Deployment security also depends on add-ons, payment configuration and updates.
Definition and sourcesOpera Aria
The historical name of Opera's browser AI assistant. Documentation now describes Opera AI using multiple models and tools. Features vary by version; Aria should not be assigned one permanent GPT-4 model or unlimited music and video generation.
Definition and sourcesOptimisation
Improving a solution against a defined goal and constraints, such as response time. It requires before-and-after measurement and checks for side effects.
Definition and sourcesOrganic search results
Search results that are not paid advertising placements. Inclusion depends on indexing and ranking systems; organic does not mean random or guaranteed.
Definition and sourcesOrphan page
A page lacking incoming internal links in the analysed structure. Sitemaps or other sources may still expose it, but discovery can be harder.
Definition and sourcesosCommerce
Online-store software with a long history and different release generations. Establish the exact version before assessing compatibility and updates.
Definition and sourcesOut-stream ads
Video ads appearing outside a main video stream, such as between page content. Availability and format names change with platform offerings.
Definition and sourcesOutbound marketing
Marketing where a business initiates contact, such as advertising or direct sales. Channel choices should consider relevance, permission and recipient experience.
Definition and sourcesOWASP
An organisation and community developing open application-security resources. OWASP Top 10 describes important risk classes rather than certifying an entire product as secure.
Definition and sources