What is an index?
Index is an English word that has meanings such as heading and index. In the
IT
industry, indexes often organize specific information from a large number of unspecified information, or refer to organized list data.
What is an index in SEO?
Those who work in
SEO
on a daily basis may have heard the term index often. In SEO, an index refers to data stored in the database of
a search engine
such as Google or Yahoo!.
The basic process for getting indexed with SEO is that search engine robots first visit websites and
homepages
. As they roam, they collect the necessary information and bring the collected data back to the search engine. Finally, the process by which the search engine organizes and stores the returned information is called an index.
Once the search engine robots have collected the information and successfully indexed it, your website or homepage will be displayed in the search results. On the other hand, even if the information is collected, if there are any deficiencies or problems, it will not be displayed in search results. In that case, you will need to identify the reason why the search engine did not index it, resolve the cause, and then ask the search engine to collect the information again.
What is index investing?
Another word that includes the word index is index investing. Index investing is a method of investing that allows you to track market price movements in an index.
For example, if the market is volatile, reduce the amount you invest because you are more likely to fall away from the index if the market goes down. On the other hand, if the price movement is not violent, you cannot expect a large return, but aim to increase the investment amount and get a safe return. Investment trusts (investment trust products) designed to track these indexes are called index funds. Representative examples are as follows.
- Tokyo Stock Price Index (TOPIX)
- Nikkei Stock Average (Nikkei 225, Nikkei Average)
- NY Dow (Dow average stock price)
These do not mean that you can only invest in specific products, but you can also create a portfolio by changing the allocation of each product. Index investing is said to be an investment method that is recommended even for beginners because it aims to achieve an index.
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