Questions about the display area of the webpage: For example, Sina Real Estate will directly enter the Qingdao page after opening. Is it an IP problem or a setup problem?

Are judged by ip. Every website has an ip library, and the region is judged according to the ip.

If more than one website appears, the information in its ip library may be incorrect. It's quite possible. Someone may have changed your ip to Shandong, and then it was crawled by ip libraries of several websites. So many websites are generally wrong, which is normal. Misjudged your ip to Shandong.

Some websites provide cookie caching function, which means that after you have been there once, he can judge your destination by the cookies stored in your computer.

Some websites can modify the region. For example, if you modify this time, he may modify his ip library, but it is more likely to be recorded on your computer through cookies. The last choice will be defaulted when accessing by computer.

It is also possible that the real estate network and the weather use different ip libraries.