SEO
There are 146 entries in this glossary.| Term | Definition |
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| Focusable Controls |
Interactive elements must be reachable and operable with the keyboard.
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| Focus Traps |
Ensure keyboard focus can move in and out of dialogs without getting stuck.
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| First Input Delay |  First Input Delay (FID) was a Core Web Vital metric measuring the time from when a user first interacts with a page (i.e., when they click a link, tap a button, or use a custom control) to the time when the browser is actually able to begin processing event handlers in response to that interaction.
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FID, Input Latency |
| First Contentful Paint | First Contentful Paint (FCP) measures the time from when the page starts loading to when any part of the page's content is rendered on the screen. "Content" here refers to text, images (including background images), `
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FCP, Initial Render |
| Favicon |
Provide a favicon so browser tabs and bookmarks show your brand.
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| External Links Use noopener |
External links that open new tabs should include rel="noopener" (and noreferrer) for safety.
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| Efficient Animated Content |
Use video or modern formats for heavy animations to save CPU and battery.
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| Duplicated JavaScript |
Avoid loading the same script multiple times; it wastes bandwidth and can double-run code.
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| Duplicate IDs |
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| Duplicate Content | Duplicate content refers to substantive blocks of content within or across domains that either completely match other content or are appreciably similar. While mostly not malicious, it can cause search engines to filter out redundant results, potentially hurting the rankings of the original page.
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Copied Content, Content Repetition |
| Domain Authority | Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how likely a website is to rank on search engine result pages (SERPs). Scores range from one to 100, with higher scores corresponding to a greater ability to rank.
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DA, Site Authority |
| DOM Size |
Keep the number of DOM nodes reasonable to improve performance and parsing.
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| Dofollow Link | A standard HTML hyperlink that does not have a `rel="nofollow"` attribute. Dofollow links allow search engine crawlers to follow the link to the destination page and, crucially, pass "link equity" (or PageRank) from the source site to the target site.
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Standard Link, Link Equity |
| Document Type |
Declare a document type to trigger standards mode and consistent rendering.
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| Deprecation Warnings |
Browser deprecation warnings flag features that will soon break; update them early.
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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 digital marketing 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 marketing firm dedicated to visual clarity in the age of algorithms.
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