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If you own a website or an independent blog, or your work is somewhat related to the Internet, then you must have a certain understanding of SEO (search engine optimization). This article will list 20 of the most commonly used terms and concepts in the SEO field. If you plan to be familiar with and understand them, please continue reading. Of course, if you already know everything, you can just use it as cram school, or you can just ignore this article.
1. Search Engine Marketing (SEM)
Search Engine Marketing (SEM) is called Search Engine Marketing in English, which means the marketing of services and products through search engines. Search engine marketing is mainly divided into two types: search engine optimization (SEO) and pay-per-click (PPC, Pay-Per-Click). Search engine optimization (SEO) refers to optimizing websites and pages and having them appear in search results pages, while pay-per-click (PPC) refers to buying search engine clicks to bring users to your website. (Usually) these clicks come from "sponsored links" in search results pages.
2. Backlink
Backlink, also known as "backlink", "inbound link" and "simple link", refers to a hyperlink from other websites to your website. The reason why backlinks are extremely important to SEO is that they directly affect the page rank (PageRank) of a web page and the ranking of this page in search results.
3. PageRank
Page Rank (PageRank) is an algorithm rule used by Google to evaluate the importance of a page relative to other pages. The most basic meaning of this algorithm rule is that if page A has a link pointing to page B, it can be regarded as a trust or recommendation from page A to page B. Therefore, if a page has more backlinks and the higher the weighting is based on the value of these links, the search engine will judge that such a page is more important and the page rank (PageRank) will be higher.
4. Linkbait (Linkbait)
Linkbait, as the name suggests, is a piece of content on a website or blog that exists to attract as many backlinks as possible (the purpose is to increase the PR value of the website). Usually, the content used as bait is text content, but it can also be a video, a picture, a quiz or other popular content. The most classic example of bait content is "Top 10", because such content can easily become popular on some social networking sites and become a hot topic.
5. Link farm or link farm
Link factory or link farm refers to the method by which many websites (usually a large number) form a workshop-like group to improve the page ranking of each website of the group through mutual links. . In the early days, this method was useful, but now it has become a shameless means of cheating (and potentially punishable).
6. Anchor text
Anchor text in backlinks refers to clickable text on a page, and the keywords in it are of great help to search engine optimization (SEO), because Google will combine these keywords with your content Relate.
7. Link attribute-NoFollow
Nofollow is a link attribute used by webmasters to tell search engines that they are not voting for the website that the link points to. This link may also be content created by the website users themselves (such as a link in a blog comment), or it may be a link from a paid transaction (such as an advertisement or sponsored link). When Google recognizes the NoFollow attribute of these backlinks, it basically does not take the contribution of these links into account in the page ranking and search result ranking algorithms.
8. Link Sculpting
Link Sculpting refers to the website administrator setting the attributes of backlinks to other websites on the website. For example, the administrator adds the Nofollow attribute to the link, which allows the administrator to decide to use his website to improve the page ranking of a specific website, or not to help improve the page ranking of a specific website. However, this approach has little effect now, because Google has decided to use its own algorithm to determine how to handle the Nofollow attribute of the link.
9. Page Title (Title Tag)
Page title (Title Tag), as the name implies, refers to the title of a page, which is also the most important reference in Google search algorithm. Ideally, your page title should be unique and include as many keywords from the page content as possible. When you browse the web, you can see the title of a web page from the top of the browser.
10. Meta Tags
Meta tags, like page titles, are mainly used to provide search engines with more information about the content of your page. The meta tag is located at the head of the HTML code and is invisible to visitors with long eyes.
11. Search Algorithm
Google's search algorithm is designed to find the most relevant websites and pages for each search request. This algorithm takes into account more than 200 factors (Google claims), including page rank, title, meta tags, website content, and the age of the domain name.
12. Search results page (SERP)
The full English name of Search Results Page (SERP) is Search Engine Results Page. Basically, this is the page you usually see after typing keywords in Google and pressing Enter. The amount of traffic your site gets from this page depends on your site's rank in the search results.
13. Sandbox
In addition to the index of all websites, Google also has a separate index sandbox, which contains newly discovered and included websites. When your website exists in this sandbox, it will not appear in general search results. Only when Google confirms that your website is legal will it be removed from the sandbox and entered into all websites. index.
14. Keyword Density
How to determine the keyword density of a specific page? You just divide the number of times a keyword is used by the total number of words on the page. Keyword density used to be a very important factor in SEO because early search algorithms valued it, but times have changed.
15. Keyword Stuffing
Because early search algorithms placed great emphasis on keyword density, webmasters used artificial keyword stacking techniques to cheat and deceive search engines. This technique is called keyword stuffing, but it is no longer useful, and you may be penalized for it.
16. Cloaking
Cloaking refers to using code to allow robots and real people to see different content on the same page. The purpose is to improve the page ranking through keywords, but the real purpose is to promote and sell various unrelated products or services. Of course, this is also a means of cheating, and it is very likely that you will be punished or even excluded by search engines.
17. Web Crawler
Web crawler or web spider (Web Crawler), also referred to as crawler or spider for short, represents search engines to browse the Internet with the purpose of discovering new links and pages. This is the first step in indexing.
18. Duplicate Content
Duplicate Content is also called "duplicate content". It usually refers to a page that references a large section of substantive content within or outside the site, or that is exactly the same or extremely similar. This is something a website should try to avoid. happens, otherwise it's easy to get your site penalized.
19. Canonical URL
Canonical URL refers to a link to a web page that must comply with specifications and standards.
20. Robot Protocol (Robots.txt)
The robot protocol (Robots.txt) is nothing more than a TXT text file that exists under the root directory of your domain name. Its function is to tell crawlers and spiders the directory structure information of the website and restrict their access to specific folders and content, or shut them out completely