Website and marketing terms beginning with E

Easing

Easing describes how an animated value progresses over time, such as moving at a constant rate, accelerating or changing in steps. It is separate from the effect’s duration. For a Jersey business, compare the proposed timing behaviour in the actual interface and agree the useful response; a curve name alone does not establish clarity, comfort or website performance.

Also called: animation easing

Ecommerce

Ecommerce means buying and selling goods or services online.

Also called: e-commerce, online selling, online shop

Edge computing

Edge computing places some processing nearer to users or the locations where information is needed. It can complement distributed delivery, but it is not the same as caching a file. Ask what work runs there, which information is processed and how the architecture is supported.

Also called: edge runtime

Element append

Element.append() adds nodes or strings after the element’s last child, with strings inserted as text nodes. Review the placement and intended information in the actual page. Adding content is one implementation operation, while the resulting structure, readable output and supported interaction still need acceptance against the customer task.

Also called: Element.append()

Element children

Element.children provides a live collection containing child elements. It excludes other node kinds such as text and comments, which childNodes can include. Keep the intended collection clear when reviewing the feature, so the maintainer can explain which items the operation handles and check the resulting customer behaviour against the actual page structure.

Also called: Element.children

Element closest

Element.closest() checks the element and its parents for a match to the supplied selector, moving towards the document root. It can help a handler identify the relevant containing item. Review the recognition rule with representative nested text and controls, so the feature connects the interaction to the intended business action.

Also called: Element.closest()

Element dataset

An HTML element’s dataset exposes its custom data attributes through a map of string values. It helps a script read or update feature information attached to the markup. Review the fields and receiving interpretation; browser-visible attribute data is insufficient evidence of a trusted price, identity or authorised business decision.

Also called: HTMLElement.dataset

Element matches

Element.matches() checks whether an element matches a specified CSS selector. It tests the element rather than returning a whole collection of matching page items. Keep the rule’s purpose clear in the feature, then review the resulting action with representative content instead of treating a match as proof of a completed customer task.

Also called: Element.matches()

Element prepend

Element.prepend() adds nodes or strings before the element’s first child, with strings represented as text nodes. Keep the intended ordering clear in the feature brief. Review the resulting content and controls in context, so inserting information at the beginning supports the customer’s reading and interaction rather than merely changing the DOM successfully.

Also called: Element.prepend()

Element remove

Element.remove() removes an element from its parent; it has no effect when the element has no parent. It changes the browser structure. Review the intended interface state and remaining customer task separately, since removing an item from the page does not itself delete a stored business record or cancel a receiving operation.

Also called: Element.remove()

Email alias

An email alias is an additional address associated with an existing mail arrangement, commonly delivering to the same mailbox. It need not create a separate inbox or user account. Check the actual receiving and sending behaviour, and document who handles messages sent to each published address.

Email attachment

An email attachment is a message part intended to be downloaded or extracted, such as a document. Supported types, sizes and filtering depend on the mail arrangement. Confirm the expected sender and purpose before opening an unexpected file, and use an appropriate approved sharing method for sensitive information.

Also called: mail attachment

Email bounce

An email bounce indicates that a message could not be delivered through the relevant mail process. Failure information can help identify an invalid address, policy rejection or another delivery problem. Review the actual status and provider guidance instead of assuming every bounce has the same cause or recovery action.

Also called: bounced email

Email display name

An email display name is the readable name shown alongside an address in a message presentation. It can help identify the intended sender, but the visible name alone does not establish authenticity. Inspect the relevant address and other evidence when checking an unexpected message or unusual request.

Also called: sender display name

Email forwarding

Email forwarding sends relevant incoming messages onwards to another address according to a configured rule.

Email header

An email header contains structured message fields such as sender, recipient, subject and message identifiers. Other fields can support tracing and authentication review. Header information needs interpretation in context; a familiar visible name or one field alone should not be treated as proof that the message is legitimate.

Also called: message header

Email input

An HTML email input supports entering an email address and applies relevant format checks. Passing those checks does not establish that the address exists, belongs to the visitor or can receive a reply. Make the field purpose clear and distinguish format assistance from any verification and delivery checks the business workflow actually performs.

Also called: input type email

Email marketing

Email marketing sends planned business communications to an appropriate mailing audience, such as useful updates or offers.

Embedding model

An embedding model converts supported content into numeric representations for comparison or related tasks. A vector retrieval system needs a compatible arrangement for document and query embeddings. Changing the model requires a planned review of indexed content and search behaviour; it is not simply a new label on existing stored numbers.

Encoded body size

Encoded body size is the resource payload size before removing applied content encodings in the browser PerformanceResourceTiming interface. It is separate from HTTP header overhead and the decoded payload size. Cross-origin timing restrictions can produce a zero value. Record the actual resource and measurement conditions before using this field to compare compressed delivery.

Also called: encodedBodySize

Encryption

Encryption transforms information into a form intended to be unreadable without the appropriate key. Protection depends on the implementation and key handling. Distinguish protection during transfer from protection in storage, and do not assume encryption prevents an authorised account from accessing the information.

End-to-end testing

End-to-end testing checks a workflow across the relevant parts of a system, often from a customer action to an expected result. The environment determines what is actually included. A Jersey business should review the tested journey, connected services, substitutions and receiving outcome before treating a passing check as evidence for a live release.

Also called: E2E testing, end to end testing

Endianness

Endianness describes the ordering of bytes used to represent a value occupying more than one byte. Little-endian and big-endian arrangements place the significant bytes differently. It is a binary representation detail, separate from access protection. Have the maintainer check the actual file or protocol when exchanging structured binary values between systems.

Also called: Byte order

Engaged session

An engaged session in Google Analytics meets its relevant engagement criteria, based on duration, key events or page and screen views. It is a defined reporting measure. Review the actual configuration and event quality, and distinguish qualifying activity from evidence that the visitor understood the content or became a customer.

Engaged session timer

The engaged-session timer is an Analytics setting for the time-based part of classifying a session as engaged. It is separate from the inactivity timeout. Keep the chosen configuration with relevant comparisons, and assess the actual customer task separately before interpreting a changed engagement label as proof that the website became more useful.

Also called: GA4 engagement timer

Enhanced measurement

Enhanced measurement in Google Analytics enables supported website interaction events through web-stream settings. Review the selected options and collected information before relying on the reports. Automatic collection does not define the business value of an interaction, so keep its trigger and meaning clear when discussing customer behaviour.

Also called: GA4 enhanced measurement

Environment variable

An environment variable supplies a named value to a running process, commonly for configuration. Public and server-side values have different exposure risks in website frameworks. Review which values enter the browser bundle and use the platform’s supported secret-handling mechanism for confidential credentials.

Also called: env variable

Error identification

Error identification explains which input has a detected problem and describes the error in text. W3C’s accessibility guidance distinguishes that explanation from offering a correction. Review the actual field and feedback using supported interaction, so the visitor can recognise what needs attention before trying to complete the form again.

Error message

An error message explains a problem and helps the person understand the next useful action. For a form validation error, it should identify the affected input and explain a suitable correction where known. For a Jersey website, review the wording, presentation and recovery route against the actual failure, including whether the customer can correct it themselves.

Also called: validation message

Error suggestion

Error suggestion provides a known way to correct a detected input error, subject to the security and content-purpose exception described by W3C. Review what the visitor can usefully do with the actual message and controls. An appropriate suggestion supports recovery but does not by itself establish a successful receiving outcome or complete accessibility assessment.

Error summary

An error summary brings relevant form errors together so the visitor can understand what needs attention and reach the affected answers. It works alongside useful field feedback. For a Jersey website, review the summary’s wording, links, focus behaviour and updated state after a correction, using the actual supported interaction rather than relying on a visible warning box.

ETag

An ETag, or entity tag, is an HTTP value identifying a particular representation version of a resource. Clients can use it in conditional requests for cache validation or supported update checks. It is not a page title, permission or ranking score. A Jersey business should review the actual cache and editing behaviour.

Also called: entity tag

Ethernet

Ethernet is a networking technology commonly used for wired local connections between devices and network equipment. The actual equipment, cable and configuration determine the arrangement. A working local Ethernet connection is separate from Internet reachability and website application behaviour, so check the relevant service path when diagnosing an issue.

Event

An analytics event records an interaction or occurrence according to the measurement system’s configuration, such as a page view or form action. Its name does not prove the underlying business outcome. A Jersey business should define what each event means, test its trigger and distinguish recorded website activity from accepted enquiries or completed sales.

Also called: analytics event

Event bubbles

Event.bubbles indicates whether the event bubbles through the DOM tree. Different events can have different propagation properties. Review the actual event and handler arrangement in the implemented feature, so an assumption based on one familiar click interaction is not applied to every signal or used to explain an unreviewed customer response.

Also called: Event.bubbles

Event bubbling

Event bubbling is the stage in which a bubbling browser event moves from its target through ancestor objects, allowing relevant listeners there to respond. It helps explain interactions in nested controls. For a Jersey business, review which responses the feature intends and test the resulting customer task; one activation can reach several handlers without representing several independent customer actions.

Event cancelable

Event.cancelable indicates whether the event’s default action can be cancelled. Review this property with the relevant listener configuration before relying on preventDefault. The business should understand what behaviour the custom feature changes and how customers complete the intended task afterwards, rather than treat cancellation as a general guarantee about every event.

Also called: Event.cancelable

Event capture

Event capture is the phase in which relevant registered listeners on ancestor objects receive an event before it reaches the target. Review the actual registration and intended response sequence with the maintainer. The owner should approve the combined customer behaviour rather than assume that every nested interaction is handled only through bubbling.

Also called: capturing phase

Event composed

Event.composed indicates whether an event can propagate across a shadow DOM boundary. Review it alongside the event’s other flow properties and the component’s implementation. Keep the supported interaction and surrounding response clear, so a custom component’s event behaviour is checked against the customer task instead of assumed from its visible appearance.

Also called: Event.composed

Event current target

Event.currentTarget identifies the object associated with the currently running event handler. It can differ from the event’s target and is available in the handler context. Keep these roles clear when reviewing a shared interaction, so the maintainer can explain which containing area owns the response and which displayed item the customer selected.

Also called: Event.currentTarget

Event default prevented

Event.defaultPrevented reports whether the event’s default action was prevented. It helps inspect the browser interaction’s technical state. Keep that meaning limited to the action being cancelled; it does not establish that a replacement request succeeded, an enquiry arrived or the customer completed the wider task the website promises.

Also called: Event.defaultPrevented

Event delegation

Event delegation handles relevant child interactions through a listener on a containing object, using the event information to identify the intended action. It can support a collection of controls. For a Jersey business, review which items the handler recognises, how changed content behaves and the resulting customer task; a shared listener still needs precise rules for the interactions it handles.

Event is trusted

Event.isTrusted distinguishes browser-generated events from events dispatched through dispatchEvent; some programmatic browser operations also generate trusted events. It is event-origin information, rather than a customer identity or permission check. Review actual authentication and receiving rules separately before giving this flag a broader meaning in a business workflow.

Also called: Event.isTrusted

Event listener

An event listener registers a response for an event delivered to a browser object, such as a button receiving a click. The handler contains the feature’s response. For a Jersey business, define the intended interaction and feedback, then review the actual customer task; a registered listener does not establish that a form arrived or every activation behaves correctly.

Also called: browser event listener

Event parameter

An event parameter supplies additional information alongside an analytics event, such as the item or interaction context. Relevant parameters can populate reporting fields. Check the values, naming and permitted information before collection; a parameter being sent does not automatically mean it is available in every report or appropriate to retain.

Event phase

Event.eventPhase indicates the current stage of event flow, including capture, target and bubbling. It helps a maintainer explain the order in which relevant handlers respond. Ask which sequence the feature intends and inspect the combined customer outcome, rather than assume that a technical phase establishes a separate user action or business result.

Also called: Event.eventPhase

Event scoped custom dimension

An event-scoped custom dimension makes a collected custom event parameter available as descriptive information for relevant Analytics reporting. Keep the parameter’s meaning and permitted values clear. Verify the implemented action and the report, rather than assume that an attractive dimension name establishes what customers actually did on the website.

Also called: GA4 event scoped dimension

Event target

Event.target refers to the object onto which the event was dispatched. It can differ from the object associated with the currently running listener during event flow. Review how the feature identifies the intended customer action, particularly where text, icons or nested controls appear inside the item that the business expects to respond.

Also called: Event.target

EventTarget interface

EventTarget is the browser interface for objects that can receive events and have listeners registered for them. Common examples include page elements, the document and the window. Keep the feature’s intended target clear in the handover, then review the actual interaction and useful result rather than treating event support as proof of a completed customer task.

Also called: EventTarget

Exception

An exception signals an abnormal condition during program execution and can change the normal flow of instructions. Languages provide ways to handle such conditions. A website should provide appropriate customer feedback and useful maintainer evidence when a relevant operation cannot complete as intended.

Also called: programming exception

EXIF

EXIF is an imaging standard used to store metadata associated with photographs, such as capture time, camera information or supported location details. The fields actually present vary by file and workflow. Inspect the exported public image when deciding what to retain; metadata is separate from visible page text and does not automatically establish a photograph’s authenticity.

Also called: Exchangeable image file format