Title Apply "_" and "|" Probe into application of search engine

Today tried to search the "SEO guess", a title "Application" _ and "|" Search Engine application to explore the article attracted my attention. The author uses several pictures to illustrate the phenomena he observes. And, I have different views on the phenomena I have observed. Here is my seo thinking.

To refer to the original text off point:

"Google is the English search engine started, on the"-"is a combination of fixed words (Zhongshan SEO: The first half of the sentence I did not think too much, I feel the second half of the problem is obvious), and the" | " is clearly treated as a spacer symbol. First take the word of gold as the focus, and then the word for beauty is secondary, and then give almost the same search results. ”

i have not yet searched myself to verify the results, and I suspect this conclusion may be problematic. In logic the symbol "|" be logical OR mean.

For example, "Apple | Banana" is a search for apples or bananas. And this, I am in Baidu Search technique guide inside also got the proof.

Quote Baidu Search Tips:

2. Parallel search

Use "A | B "to search for" or include the keyword A, or include the keyword "B" page.

For example: you want to query "picture" or "photo" related materials, no need to divide two times query, as long as the input [picture | photo] Search can be. Baidu will provide with "|" Sites and materials related to any keyword.

I found two questions:

1. Google to "|" is clearly treated as a spacer symbol.

2. First take the word of gold as the focus, and then the word for beauty is secondary.

And the two ideas I understand are:

1. "|" For logic or relationship, two keywords are equivalent. does not exist which keyword key, which keyword is minor.

2. The search results are much more gold, not because the keyword gold is written in the logical or symbolic "|" Front. As mentioned above, they are of equal relevance. The difference in the results of a search is judged by the heat of the search.

[Note: I'm just talking about Google, and the experiment is a testament to Google's performance. ]

Experiment Step one: The following from http://www.aliyun.com/zixun/aggregation/9464.html ">google search" webmaster | Qiang "Results to illustrate my two points.

Results：

1. The first page is almost entirely related to the "webmaster" search results. The second page finally has a search result for "Qiang".

Analysis: Because the word "stationmaster" is more hot than the word "Qiang". Search engines think users will need more "webmaster" related results.

Experiment Step two: To further illustrate my point of view 1 of the "logic or notation on both sides of the keyword is the same relationship", now search "Qiang | webmaster"

Results：

Same as the search results above. This shows that the logical symbol "-" on both sides of the keyword is in the same relationship. There is no "-" front is the key keyword. The search results are determined by the heat.

Experiment step three: To further explain the difference in the results of the search is determined by the search heat, search "webmaster | Andy Lau"

Results: Most of them are related to the "Andy Lau" search records. We all know that "Andy Lau" is a very hot keyword, the heat is higher than "webmaster" the word.

There is another case where it is not easy to jump to conclusions: search results when there is a large correlation between the logic or the keywords on both sides.

Finally, the original "title Application" _ "and" | " The conclusion of the search engine application is that to avoid the use of "|" in the title of the article and other symbols. This special character "|" entered in the Search engine input box is a kind of logic operation symbol, has the logic operation function. and search engine spider in crawl webpage file to encounter "|" , it is treated as a special symbol or as a special string.