Internal links are links that connect other pages within the same domain. It is a core structural element of SEO that helps crawlers navigate your site, distributes link authority (link juice) between pages, and guides visitors to explore related content.
External links are links to other domains and increase trust in content by providing official documents or original sources. It is not something to be avoided unconditionally, and the quality and context of the connection target are important. Whether to use the nofollow attribute is determined depending on the purpose of the link.
A backlink points from another website to yours. It can provide a discovery or reference path, but link counts and third-party scores do not determine Google rankings by themselves.
Link juice is an SEO metaphor for value associated with links, not a published Google measurement. It is inaccurate to describe a fixed quantity flowing through every link or nofollow as an absolute barrier.
Domain authority is an informal concept that describes the degree to which a specific domain is trusted by search engines. It is not an official Google indicator, and SEO tools provide their own scores. Backlink quality and content trust are major influencing factors.
Topic authority is the degree to which a site or brand provides extensive and reliable information in a specific topic area. It is formed by building the scope and depth of the topic through hub pages, cluster content, and internal linking structures.
Duplicate content is identical or very similar material available at multiple URLs. Ordinary technical duplication does not automatically mean a penalty; clarify the preferred URL and the purpose of each version.
Thin content is content that does not provide any real value to readers, including lack of new information or satisfying search intent, regardless of character count. Google may derank or de-index thin content.
Keyword stuffing is the act of unnaturally repeating or listing specific keywords within a page to increase search rankings. This can be counterproductive because current search engines look at context and quality rather than word repetition.
A search snippet is a summary area, including descriptive text and URL, that appears below the title in search results. It is automatically generated from the meta description or body text, and is key information that helps users judge the page content before clicking.
A featured snippet is a format that summarizes the answer to a question in a box at the top of the search results. It appears as a paragraph, list, or table and is also called 'position 0'. A content structure with a question-type H2 and a clear answer in the first sentence is advantageous.
A site link is an element that displays major subpages as additional links below the homepage in brand name search results. It cannot be specified directly, and is influenced by clear navigation, unique page titles, and an internal link structure to important pages.
Zero-click search describes searching without an onward visit to an external site. Research definitions vary, and stable impressions with fewer clicks do not by themselves prove the cause or a brand-trust benefit.
Digital discoverability refers to the extent to which customers can find and compare brands and information across search, maps, AI answers, shopping and content platforms.
Content SEO is the process of planning, creating, and managing information that suits the user's search purpose, so that people who find it through search can get the necessary answers and basis for decision.
On-page SEO is the process of organizing the title, body, heading, image description, and links of each individual page to improve the understanding of the topic and value of the page by people and search engines.
Entity SEO is the task of organizing the information and relationships of distinct objects such as companies, people, and products to help search systems avoid confusion about what they are referring to.
SEO performance measurement is the process of separately recording search exposure and visits, on-site behavior and business results, and interpreting the contributions and limitations of search improvement.
E-commerce SEO is the process of improving content and technical structure so that a online store’s products, categories, and purchase information can be discovered and understood through search.