The renovation industry is a popular sector. During internet marketing, renovation companies or renovation platforms that have participated in bidding or SEO optimization should understand that the competition is extremely fierce. According to a friend who works as a network administrator in a Shenzhen renovation company, they dare not bid on high-volume keywords because they can't afford it. For example, a click on a term like "Shenzhen restaurant renovation" costs 70-80 yuan, while more popular terms such as: renovation company, renovation design, renovation, Shenzhen renovation company, can be imagined to be even more expensive. When optimizing the website of a renovation company, we optimized keywords like renovation company, renovation, renovation design, Shenzhen renovation company, office renovation, villa renovation, hotel renovation, shop renovation, factory renovation, office building renovation, office design, hotel design, villa design, shop design, factory design, office building design, etc., to the first page. The results are stable, and the website's domain authority increased from 1 to 4.