After creating a homepage, there are many things that are usually put off until the last minute. Where and how to write company information is . Sometimes I leave it out because it interferes with the design, and sometimes I just add the phone number and end it. However, this item is regulated by law, and has a greater impact on search and AI exposure than expected. It is organized according to practical standards.

Is it necessary to use the business registration number? If you sell goods or services on the

website, you are required to display them. The Electronic Commerce Act requires mail order sellers to display their name, representative, address, phone number, email, business registration number, and mail order business report number in a place where consumers can easily see them.

If your website only introduces the company, it may not be subject to mail order business reporting. However, even in this case, it is better to write down the business information. The reason will be explained later. Whether

is applied depends on the business type, so if it is unclear, it is best to check with the relevant district office or Fair Trade Commission data.

Where should I use it?

Bottom (footer) of all pages is the default. If you only put it on the introduction page, visitors won't be able to see it unless they go to that page. Most people who come in through search come directly to a specific article or product page, not the introduction page.

If you put it in the footer, the company information will follow no matter which page you go to. It doesn't require any extra work, and usually all you have to do is change one part of the template.

What should I use together?

If you receive personal information through the inquiry form or newsletter A privacy policy is required regardless of whether you sell or not.Should I use

even if it is not sold online?

It may not be mandatory, but it is recommended to use . This is because, regardless of the obligation to display , a homepage without company information has no basis for judgment from the perspective of a first-time visitor.

Especially, if the company homepage and blog domain of are different, the problem will increase with . People who come to the blog through search cannot tell whether this is actually run by a company. At this time, one line of the business registration number changes the decision. What does

have to do with

search?

Search engines and AI use “Who runs this site” for trust judgment. Without company information, there is no material to make that judgment.

There is one important difference here. The statement “This is a trustworthy company” is not a trust signal. Because anyone can use . On the other hand, the business registration number is searched by the National Tax Service. Only verifiable information acts as a trust signal.

It becomes more clear if structured data (machine-readable company information) is included as well. Although it is invisible to the human eye, search engines and AI read this information first.

To summarize, it is like this

It will be easier to judge if you look at it as , which is not an item that harms the design of

, but rather an item that proves that the homepage is actually the company's.