There are 287 entries in this glossary.
Filter Hook A PHP function that modifies data before it is saved to the database or displayed on the screen.
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Filters, Data Modifiers |
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First Contentful Paint First Contentful Paint measures how long it takes from when a page starts loading until users see the first piece of real content on screen, like text or an image. A fast FCP reassures visitors that the page is working and worth waiting for. It is a key early indicator of perceived speed.
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FCP, Initial Render |
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First Input DelayFirst Input Delay was a Core Web Vital that measured the gap between a user's first interaction, like clicking a button, and the browser actually responding. A long delay makes pages feel sluggish even if they look loaded. It has since been replaced by Interaction to Next Paint.
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FID, Input Latency |
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Flexbox
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Flexible Box Layout, Flex |
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Focus TrapsA Focus Trap happens when keyboard users get stuck inside a section of a page and cannot tab their way out. While trapping focus inside an open dialog is expected behavior, accidental traps block navigation entirely. Good focus design always gives users a clear way in and out.
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Keyboard Trap, Focus Lock |
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Focusable ControlsFocusable Controls means every interactive element on a page can be reached and used with just a keyboard. If a button or link is visible but cannot receive keyboard focus, it is effectively invisible to many users. Reliable focusability is essential for accessible, inclusive design.
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Keyboard Access, Tab Focus |
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Font Awesome A widely-used toolkit that provides vector icons acting as fonts.
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Icon Font, FA |
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Font DisplayFont Display controls how text behaves while custom web fonts are still downloading. Poor settings can leave users staring at invisible text or cause jarring font swaps after the page appears loaded. The right configuration keeps text readable throughout the entire loading process.
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Font Loading, Font Swap, FOUT |
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Font SizeFont Size refers to how large or small your text appears across different devices and screen sizes. Text that is too small frustrates readers and creates accessibility barriers, especially on mobile. A solid font-size strategy ensures your content stays legible and comfortable everywhere.
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Text Size, Readable Text, Typography |
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Forced ReflowForced Reflow (also called layout thrashing) occurs when JavaScript reads a layout property immediately after writing one, forcing the browser to recalculate the entire page layout synchronously. This blocks the main thread and causes visible jank, especially on mobile devices.
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Layout Thrashing, Synchronous Layout, Layout Recalculation |
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Four-Word KeywordsFour-Word Keywords are longer, more specific search phrases that usually reflect clear user intent. They tend to be less competitive than shorter terms and attract more qualified visitors. Including natural four-word phrases helps your content match what people are actually searching for.
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Long-Tail Phrases, 4-Word Keywords |
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FrontendThe public-facing area of the website visible to visitors.
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Public View |
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functions.phpA PHP file within a theme that acts like a plugin, adding features and functionality unique to that theme.
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Theme Functions, Theme Logic |
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Geolocation on StartGeolocation on Start is the bad practice of asking for a visitor's location the moment a page loads, before they have any reason to share it. Premature permission prompts annoy users and get denied more often. Ask for location only when someone takes an action that actually needs it.
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Location Prompt, GPS Permission |
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Global Check-inA maintenance tool used to unlock items that are currently "checked out" or locked by a user.
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Unlock, Release Locks |
What Does "Liquid Purple" mean?
noun | / LIK-wid PUR-pul /
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(biochemistry) Also known as visual purple or rhodopsin — a light-sensitive receptor protein found in the rods of the retina. It enables vision in dim light by transforming invisible darkness into visible form. Derived from the Greek rhódon (rose) and ópsis (sight), its name reflects its delicate pink hue and vital role in perception.
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(modern usage) Liquid Purple — a website management agency specializing in uncovering unseen opportunities and illuminating brands hidden in the digital dark. Much like its biological namesake, Liquid Purple transforms faint signals into clear visibility — revealing what others overlook and bringing businesses into the light.
Origin: From the scientific term rhodopsin, discovered by Franz Christian Boll in 1876; adopted metaphorically by a web development firm dedicated to visual clarity in the age of algorithms.