Dynamic Search Ads
Google Dynamic Search Ads use website content to match searches. DSA can also mean the Digital Services Act; this entry concerns advertising.
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 685 / 685
E-commerce
Commerce where goods or services are ordered electronically, usually online. Payment and delivery need not occur online. E-commerce includes both business transactions and consumer sales.
Definition and sourcese107
An open-source PHP CMS offering themes and extensions. Check requirements and update availability before using an older installation.
Definition and sourcesEaster egg
An intentionally hidden joke, animation or software feature. It is an author-added extra rather than inherently a defect and should not compromise accessibility or security.
Definition and sourcesElasticsearch
A distributed search and analytics engine. It indexes documents for querying and should not be equated with every transactional source database.
Definition and sourcesElementor
A visual WordPress page editor using components and design settings. Features vary by version, plan and extensions. A builder simplifies editing but does not remove the need to test responsiveness, accessibility and speed.
Definition and sourcesEmail alias
An additional address delivering mail to an existing mailbox. It usually has no separate password or storage; sending behaviour depends on the provider.
Definition and sourcesEmail blast
A colloquial term for a one-off bulk message campaign. Broad reach does not replace segmentation, recipient permission and deliverability checks.
Definition and sourcesEmail deliverability
The ability of email to reach recipients, especially the intended inbox placement. Server acceptance does not guarantee inbox placement or reading.
Definition and sourcesEmail marketing
Marketing communication by email to appropriately permitted recipients. It includes segmentation, content, deliverability and outcome measurement rather than bulk sending alone.
Definition and sourcesEmail open rate
The share of recipients with recorded opens under the tool's rules. Image blocking and privacy protection can distort it; it does not reliably measure reading.
Definition and sourcesEmail template
A reusable email layout and content pattern. It needs mail-client tests, a text version and checks of accessibility and links.
Definition and sourcesEmber.js
A JavaScript framework for web applications with established conventions. Routing and components support consistent organisation of larger projects.
Definition and sourcesEnd-to-end testing
Testing a complete user scenario across cooperating system layers. E2E also has other meanings, including encryption; this entry concerns testing.
Definition and sourcesENS
Ethereum Name Service maps readable names to addresses and other resources, for example names ending in .eth. Application support varies. ENS is not an AI tool or a complete replacement for DNS.
Definition and sourcesEthereum
A blockchain network supporting smart contracts and applications. Ether, or ETH, is its native asset. Ethereum uses proof of stake; ETH mining ended with the network's transition in 2022.
Definition and sourcesEuropean Accessibility Act
EU Directive 2019/882 setting accessibility requirements for selected products and services. Obligations and exemptions must be assessed under national implementation.
Definition and sourcesEvergreen content
Content remaining useful longer than a current news item. It still needs updates to examples, links and changing facts.
Definition and sourcesExact-match anchor text
Link text exactly matching a target keyword phrase. It can be natural in context; large-scale artificial use does not guarantee benefits.
Definition and sourcesExploit
Code or a method exploiting a vulnerability. A vulnerability's presence alone proves no successful attack; exposure and controls affect risk.
Definition and sourcesExpress.js
An HTTP framework for Node.js providing routing and middleware. It is a service-building layer rather than a complete content management system.
Definition and sourcesExternal linking
Links between different websites. Cite reliable sources and qualify paid relationships correctly; an external link is not automatically harmful.
Definition and sourcesExynos
A Samsung chip family that includes mobile systems on a chip. Components and controllers vary by model. Modem, NPU and other features are not identical across all Exynos chips.
Definition and sourcesEye tracking
Measuring gaze direction and movement during a study. It helps analyse attention, but looking at an element does not prove understanding or purchase intent.
Definition and sources