SEO Terms
There are 12 entries in this glossary.
Unminified CSS Unminified CSS contains whitespace, comments, and formatting that make files larger than they need to be. Minifying CSS strips out these extras and reduces file size, helping pages render faster, especially on slower connections. Minification should be an automatic step in your build process.
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CSS Minification, Stylesheet Optimization |
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Unminified JavaScriptUnminified JavaScript includes extra whitespace, comments, and formatting that increase file size without adding functionality. Serving minified JavaScript reduces download and processing time for visitors. Making minification an automatic part of your build pipeline keeps performance consistent.
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JS Minification, Script Optimization |
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Unsized ImagesUnsized Images are pictures placed on a page without declared width and height, causing the layout to jump around as they load. This contributes to layout shift and a poor visual experience. Always set image dimensions or use CSS aspect ratios to keep the page stable during loading.
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Missing Dimensions, No Width/Height |
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Unused CSS RulesUnused CSS Rules are styles shipped to the browser that never actually apply to anything on the page. They add unnecessary weight, slow down rendering, and make stylesheets harder to maintain. Regularly cleaning out dead CSS keeps your stylesheets lean and your pages fast.
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Dead CSS, Unused Styles |
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Unused JavaScriptUnused JavaScript is code sent to the browser that never runs during a normal visit. It wastes bandwidth, increases processing time, and slows the page down for no benefit. Auditing and removing unused code is one of the most effective ways to improve front-end performance.
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Dead Code, Unused JS, Code Splitting |
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URL CanonicalizationURL Canonicalization is the practice of picking one preferred URL when the same content is accessible at multiple addresses. It tells search engines which version to index, preventing duplicate content confusion. Strong canonicalization keeps your ranking signals focused on the right pages.
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Canonical URL, Preferred URL |
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Use LandmarksUsing Landmarks means organizing your page into clear structural regions like header, navigation, main content, sidebar, and footer. Screen readers use these landmarks to let users jump directly to the section they need. Consistent landmark usage makes your site much easier to navigate.
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ARIA Landmarks, Page Regions |
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Use rel=preconnectPreconnect is a hint you give the browser to start connecting to important external servers before they are actually needed. It reduces connection setup time and can speed up loading for critical resources. Use it sparingly though — too many preconnects can waste resources.
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Preconnect, Early Connection, DNS Prefetch |
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Use rel=preloadRel=preload tells the browser to fetch important resources, like fonts or key scripts, as early as possible in the loading process. Used wisely, it speeds up first render and reduces delays for critical assets. Overusing it can backfire by competing with other important downloads.
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Resource Preloading, Preload Hint |
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Use Text CompressionText compression means shrinking text-based files like HTML, CSS, JavaScript, and JSON before sending them to the browser. Gzip and Brotli are the most common methods, and they can dramatically reduce transfer sizes. Enabling compression is one of the easiest server-side performance wins.
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Gzip, Brotli, File Compression |
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User TimingsUser Timings are custom performance measurements you define to track moments that matter most to your specific product or workflow. They go beyond generic metrics to capture things like how long a checkout flow takes or when a key feature becomes usable. They make performance data more actionable.
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Custom Metrics, Performance Marks |
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Uses Long Cache TTLUses Long Cache TTL checks whether static assets (scripts, stylesheets, images, fonts) are served with a long browser cache lifetime. Short or missing cache headers force repeat visitors to re-download assets they already have, wasting bandwidth and slowing page loads.
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Browser Caching, Cache TTL, Cache-Control Max-Age |
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.