search engine submission

Using PHP to record the search engine Routing and user search input keywords, the code is as follows:

call them search engines, there are two main categories:⒈ meta search (meta search Engine). Such search engines generally do not have their own network robots and databases, their search results are by invoking, controlling and o

refer to them as search engines, mainly including: Meta Search Engine ). Such search engines generally do not have their own network robots and databases, their search results are displayed on the same interface in a unified format by calling, controlling, and optimizing t

use the database LIKE, the resources will definitely consume a lot. Would you LIKE to ask how the mature practices are achieved? How do I publish different results to different subscribers? Please give a detailed description of the problem. What are the sources of these news? UGC? Capture? How many of these news? Millions? Tens of millions? Taking capturing information, news, and tens of millions of data records as an example, the data can be divided into the following parts:1. the captu

the news? Million? Million? To crawl information, news, tens of thousands of levels for example, roughly divided into a few parts:1. The captured news will have a classification module for each item labeled after the storage2. In order to access the speed, maintain a label in memory-news unique ID array data structure, you can use Redis can also write a single service3. There will be a table to maintain user and subscription topics4. When the user sends a request to obtain a message, go to

by 1 time times. If a Web page is updated 5 times in a row, the crawl time of the setting is shortened to the original 1/2. Note that efficiency is one of the keys to winning. 4 "What is the depth of the climb?" Look at the situation. If you compare cows, have tens of thousands of servers to do web crawler, I advise you to skip this. If you're like me with only one server doing web crawler, then such a statistic you should know: Page Depth: Number of pages: how important the page is 0:1:: 10

time to reach the deep HTML file. 4. Collect collection policiesSome web pages can be collected through user submission. For example, some commercial websites send an application to search engines for indexing, the collector can directly collect the webpage information of the submitted website and add it to the index database of the search

In the formal study of SEO, you still need to learn how the search engine works, after all, SEO is for the search engine operation, then understand the working principle of the search engine, then encounter some problems, you can

Directory Index is basically a "one-click sale". You do not need to submit your webpage repeatedly for the same category of directories, directory indexes are not allowed. But the search engine is different. Because there are a large number of new web pages joining the competition every day, your leading position is easily replaced by latecomers. In addition, the ranking rules of

Search engine Author: Sand Rain Editor's note: This is a wonderful programming teaching article, not only detailed analysis of the search engine principles, but also provides the author of the use of PHP to compile a search engine