LiquidPurple - Strategic Website Management

Glossary of Terms

We have compiled this list of terms and definitions to help you better understand the terminology used within the web development community.

SEO Glossary

There are 12 entries in this glossary.
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Definition List Items

Definition List Items are pairs of terms and their descriptions grouped together in a structured way. When built correctly, assistive tools can clearly communicate which description belongs to which term. Well-formed definition lists make content clearer for both people and search engines.
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Synonyms - Definition List, DT/DD Pairs, Description List

Deprecated HTML Tags

Deprecated HTML Tags are older elements that modern web standards no longer recommend. While browsers may still display them, they can cause maintenance headaches, accessibility gaps, and inconsistent behavior over time. Replacing them with current HTML and CSS improves quality and reduces technical debt.
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Synonyms - Obsolete Tags, Old HTML Elements

Deprecation Warnings

Deprecation Warnings flag features or coding patterns that are scheduled for removal in future browser updates. Ignoring them increases the risk of things breaking during upgrades. Fixing deprecation warnings early keeps your site stable, secure, and ready for the future.
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Synonyms - Deprecated Features, Browser Warnings

Document Title

Document Title checks that the HTML page contains a non-empty <title> element. The title is the first thing screen readers announce when the page loads and is the primary clickable text shown in search engine results pages.
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Synonyms - Page Title, Title Tag, Title Element

Document Type

Document Type declaration tells the browser which version of HTML your page uses. Getting it right ensures browsers render your page in standards mode instead of falling back to quirky legacy behavior. It is a small detail that prevents big layout and compatibility headaches.
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Synonyms - DOCTYPE, HTML Declaration

Dofollow Link

A Dofollow Link is a regular hyperlink that passes ranking authority from the source page to the destination. Unlike nofollow links, dofollow links tell search engines to count the link as an endorsement. Most standard links are dofollow by default unless you specifically mark them otherwise.
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Synonyms - Standard Link, Link Equity

DOM Size

DOM Size is the total number of elements on a page and how deeply they are nested. Very large or complex pages force the browser to do more work for styling, layout, and scripting, which slows everything down. Keeping your page structure lean improves speed and responsiveness.
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Synonyms - Page Complexity, Node Count, Element Count

Domain Authority

Domain Authority is a score developed by Moz that predicts how likely a website is to rank in search results. Scores range from 1 to 100, with higher numbers meaning stronger ranking potential. It is a useful benchmark for comparing sites, though it is not an official Google metric.
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Synonyms - DA, Site Authority, Domain Authority,

Domain Rating

Domain Rating is a proprietary metric from Ahrefs that measures the strength of a website's overall backlink profile on a scale from 0 to 100. A higher DR indicates a stronger, more authoritative link profile. DR is calculated based on the quantity and quality of external backlinks pointing to the entire domain, making it useful for comparing the relative link authority of different websites.
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Synonyms - DR, DR:

Duplicate Content

Duplicate Content is when the same or very similar text appears on multiple pages within your site or across different websites. Search engines may filter out the duplicates, which can hurt the ranking of your original page. Using canonical tags and unique content helps avoid this problem.
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Synonyms - Copied Content, Content Repetition

Duplicate IDs

Duplicate IDs happen when the same identifier is used on more than one element on a page. Since IDs are supposed to be unique, duplicates can break form labels, accessibility references, and JavaScript behavior. A quick audit can catch these before they cause real usability problems.
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Synonyms - Duplicate ID, ID Conflicts

Duplicated JavaScript

Duplicated JavaScript happens when the same script code gets loaded more than once on a page. This wastes bandwidth, slows down processing, and makes maintenance harder without adding any real value. Removing duplicates is an easy way to improve performance and keep your code clean.
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Synonyms - Duplicate Scripts, Redundant JS

What Does "Liquid Purple" mean?

noun | / LIK-wid PUR-pul /

  1. (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.

  2. (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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