(1)site—Limit the search scope to a specific site
When you need to find some special documents, and you already know that the thing you are looking for is in a certain site (especially a highly professional website
), you can use the site syntax reasonably to get twice the result with half the effort. The method used is to add "site:
site domain name " after the query content . For example, "social engineering site: zhixing13.cn", Baidu search engine will display
articles about social engineering found on Zhixing.com . As shown in the figure below.
site: Do not include http:// and / symbols for the domain name followed by site:, in addition, do not include spaces between site: and the site name, otherwise an error will occur.
(2) intitle-limit the search scope to the page title
In general, the title of the webpage is the outline of the entire webpage. Using the intitle grammar can limit the scope of the query to the title of the webpage, which helps to find the required webpage quickly. The way to use is to add "intitle:" to the front of the particularly critical part of the query content. For example, intitle: social engineering.
There should be no spaces between "intitle:" and the following keywords
(3) inurl- a search scope is limited to the URL link
Use inurl syntax to find the web page URL (Chinese name. Uniform resource locator. It is a concise representation of the location and access method of resources available on the Internet) related resource links, and then use another keyword to determine whether there is a certain A specific resource to enable users to find more accurate thematic information. The method used is "inurl:" followed by keywords that need to appear in the URL. For example,
computer inurl:lunwen. Baidu search engine will display papers about computers. The "computer" in this keyword can appear on web pages Anywhere, but the "paper" must appear in the URL of the web page.
(4) Minus sign-a requirement that no specific query term is included in the search results
Use the minus sign syntax to remove web pages that users don’t want to see. For example, [笑傲江湖] itite: novel-TV series. At this time, all Baidu searched were novels about laughter, and there would be no information about TV dramas.
(5) domain-find information related to a--website
To understand the information of a certain website, besides entering www.website.com in the address bar, we can also use domain syntax to find information related to this website on the Baidu search engine. For example, doman:www.Google.com. You can find the website that contains www.Google.com information in the website content.
(6) filetype-limit the format type of the search file
Searching for a keyword's information may search for many types. At this time, the file type to be searched can be restricted through the filetype syntax. The method used is to search for "keyword+filetype:ppt". For example, computer+filetype:ppt. You can only search
for PPT about the computer.
Currently the file types that can be searched are: .pdf, .doc, .xls, .ppt, .rtf
(7) Double quotation marks, book title number and square brackets-exact match, narrow the search scope
Double quotes.
If the entered keywords are very long, after Baidu's analysis, the keywords in the search results may be split
. If you are not satisfied with this situation, you can try to make Baidu not split keywords. We only need to add double quotes to the keywords
to achieve this effect. For example, "China Computer Industry Association". If the double quotation marks are not added, the search results are split
, and the effect is not very good, as shown in the lower left figure. But adding the "China Computer Industry Association" after the double quotation marks, the results obtained
are all in line with the requirements, as shown in the lower right figure.
Brackets.
In the same way, using square brackets can also make Baidu not split keywords and narrow the search scope. For example, [tell a story]. After adding "[]", the keywords will not be split together.
Title number.
The title number is a special query syntax unique to Baidu. In other search engines, the title number of the book will be ignored, while in Baidu
, the title number of the Chinese book can be queried. There are two special functions for the query words with the title number. One is that the title number will appear
in the search results; the other is that the expanded content of the title number will not be split. The title number
is particularly effective in certain situations (such as searching for frequently used movies or novels). Example: "Social Network". If you don't add the title number, in many cases
various social platforms will come out , as shown in the lower left picture. After adding the title number, the search result of "Social Network" is a movie, as
shown in the figure below.
