The type of store refers to the intelligence of advertisements (I don't know if there is such a classification, I define it according to the advertisements I contact), which is divided into four types.

First, targeted placement, where a fixed advertisement is placed in a fixed advertising space on a web page, is all about how to refresh.

Second, random placement, you only need to have advertising materials, throw them into various websites like flowers, bid if you meet the requirements, and display the advertisements if you win. You can see all kinds of messy advertisements on a web page.

Thirdly, I am responsible for accurate orientation, establishing a database according to user portraits and website classification, and adjusting various settings in real time to ensure the advertising effect. You search for credit cards, I'll give you credit cards, you search for cars and I'll give you advertisements for all kinds of cars.

Fourth, smart delivery is most closely related to user portraits. As long as you can get cookie or shopping records like Taobao, you can classify users and push more accurate advertisements according to each algorithm. Even when you search for pregnancy, I will provide you with one-stop services for pregnancy products, maternity hospitals, baby products and preschool education.

Advertisers won't get your information. We just need to know what the request for advertising space on the web page you are browsing is, browser, network environment, terminal type and IP area. But if you don't like it, block the advertisement. All advertisements can be blocked except those written in the page code.

It is made of biscuits. Didn't 3 15 make a lot of noise some time ago? Note: Cookies here mainly refer to third-party cookies.

Briefly talk about the principle:

First of all, when you search for something in tb, tb will leave a cookie for your browser, which is "mark it" in layman's terms.

Then you visit a small website with advertisements for tuberculosis and link directly from tuberculosis.

When you load a web page, you need to load an advertisement. Tb's server can get the cookie it left on your browser. After judging, it is you. You just searched your mobile phone two days ago. So I posted a mobile phone advertisement for you.

This should not be illegal. Privacy. .

It doesn't matter, after all, I personally think that accurate delivery is better than the kind of advertisement that will add chaos to you.

Disable third-party cookie or use stealth mode, but stealth mode has many disadvantages.

Do people in China have privacy?

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