Analysis on the reasons of the most complete Web site's right to fall

In the era of the rapid development of the internet age and the prospect of expensive bidding costs to make most enterprises miserable and low-cost investment in the professional-seo was born, the number of practitioners is also increasing every year, but the internet's spam is also more and more, so the search engine in order to better cater to the user experience also frequently launched the algorithm adjustment. During this period, of course, there are many sites have been down the right to even be k off, as for what reason, there are many from the professional friends can not completely find the root cause of the problem, the following author to the personal years of experience for everyone to share, I hope to help you restore the site rankings.

Go straight to the point:

I. Space issues

Because the speed of the space access is not stable, sometimes slow to open the situation, because this is the right of the case column is also a lot of. Therefore, I suggest that I do not want to do the site before the cheap and buy a cheap space, but to choose a secure and fast domestic space. Want to know their site in the last update if there is not open the case to look at the space log, here I sorted out the search engine common crawl return code.

1XX (temporary response) represents a temporary response and requires the requestor to continue to perform the operation's status code.

100 (continued) The requester should continue to make the request. The server returns this code indicating that the first part of the request has been received and is waiting for the remainder.

101 (switching protocol) The requestor has asked the server to switch protocols, and the server has confirmed and is ready to switch.

2XX (Success) indicates that the requested status code was successfully processed.

200 (successful) the server has successfully processed the request. Typically, this indicates that the server has provided the requested Web page.

201 (created) The request was successful and the server created a new resource.

202 (accepted) the server has accepted the request but has not yet processed it.

203 (non-authoritative information) the server has successfully processed the request, but the returned information may be from another source.

204 (no content) the server successfully processed the request but did not return any content.

205 (reset content) the server successfully processed the request but did not return any content.

206 (partial content) the server successfully processed a partial GET request.

3xx (redirect) indicates that the request needs further action to complete. Typically, these status codes are used for redirection.

300 (multiple choices) for a request, the server can perform a variety of operations. The server can select an action based on the requester (user agent) or provide an action list for the requester to choose from.

301 (permanently moved) The requested page has been permanently moved to the new location. When the server returns this response (a response to a GET or head request), the requestor is automatically transferred to the new location.

302 (Temporary mobile) The server is currently responding to requests from Web pages in different locations, but the requester should continue to use the original location for subsequent requests.

303 (View other locations) The server returns this code when the requester should use a separate GET request to retrieve the response for a different location.

304 (not modified) The requested page has not been modified since the last request. When the server returns this response, the content of the Web page is not returned.

305 (using a proxy) the requester can only use the proxy to access the requested Web page. If the server returns this response, it also indicates that the requester should use the proxy.

307 (temporary redirection) The server is currently responding to requests from Web pages in different locations, but the requester should continue to use the original location for subsequent requests.

4xx (Request error) These status codes indicate a possible error in the request and hinder the processing of the server.

400 (Error request) The server does not understand the syntax of the request.

401 (not authorized) request authentication. The server may return this response for Web pages that need to log on.

403 (Prohibited) the server refused the request. 404 (Not found) the server could not find the requested Web page.

405 (method Disabled) Disables the method specified in the request.

406 (not accepted) cannot use the requested content attribute to respond to the requested Web page.

407 (proxy authorization required) This status code is similar to 401 (not authorized), but the specified requester should authorize the use of the agent. 408 (Request timed out) timeout occurs when the server waits for a request.

409 (conflicting) the server encountered a conflict while completing the request. The server must contain information about the conflict in the response.

410 (Deleted) If the requested resource has been permanently deleted, the server returns this response.

411 (requires a valid length) the server does not accept requests that do not contain a valid content Length header field.

412 (Prerequisites not met) the server did not meet one of the prerequisites that the requester set in the request.

413 (Request entity too Large) the server was unable to process the request because the request entity was too large to handle the server.

414 (The requested URI is too long) The requested URI (usually the URL) is too long for the server to process.

415 (Unsupported media type) The requested format is not supported by the requested page.

416 (Request range does not meet the requirements) if the page cannot provide the requested scope, the server returns this status code.

417 (expectations not met) the server did not meet the requirements for the "expected" Request header field.

5XX (server error) These status codes indicate that the server encountered an internal error while trying to process the request. These errors may be errors on the server itself, not the request.

500 (server internal error) the server encountered an error and could not complete the request.

501 (not yet implemented) the server does not have the capability to complete the request. For example, this code may be returned when the server does not recognize the request method.

502 (Error Gateway) The server received an invalid response from the upstream server as a gateway or proxy.

503 (Service Unavailable) the server is not currently available (due to overloading or downtime maintenance). Usually, this is only a temporary state.

504 (Gateway Timeout) The server acts as a gateway or proxy, but does not receive requests from upstream servers in a timely manner.

505 (HTTP version is not supported) the server does not support the HTTP protocol version used in the request.

Second, the friendship chain station point or the same space other site down right

1, Friendship link site was dropped right immediately delete this site in exchange for a high degree of industry-related web site connection

2, the same space other sites to reduce the right to replace the independent space

Third, the contents of the station

Low originality, long time no update, more for collection or pseudo original content, enhance content quality and update

Four, code too much affect the speed of Web page opening

Use Baidu Webmaster tools to the station too miscellaneous code to delete

V. Web site is mirrored

At present, there are many Web site code does not carry out an absolute address way to deal with, competitors often like to use this point to mirror their own site is down right.

Six, the first page is shielded

This phenomenon is mainly aimed at Baidu, the solution directly to the main head of the server to modify the index to other pages or the first page of the file name repair changes.

Vii. over-optimized

Some friends of the site to optimize this degree is not very good, can use the means are used, the result is not only bad rankings, but counterproductive, the specific degree of how to grasp, not a certain number, can only say that they have to go through a lot of practice and operation area to sum up some laws or skills.

Eight, recent changes in the station three major labels

Recently changed the title of the first page, keywords and descriptions or often changes.

Nine, the page keyword heap to withdraw density too high

This phenomenon is easily mistaken for the search engine cheating, but often some seor do not pay attention to, often appear throughout the page everywhere to do the keyword, in fact, the current user experience today we want to do the layout of the key words naturally, do not go to heap Beecher.

Ten, the site was Hung horse

This phenomenon is also very common, so we have to constantly pay attention to their own site snapshots, home page source code and the inclusion of changes to prevent in the first.

Xi. the chain or the inclusion of a sudden sharp drop

The chain suddenly reduced a lot mainly because of your site's external quality is not high, search engine in the update adjustment when the connection to your connections into the garbage and deleted, so in the future we do outside the chain to be used for some high correlation connection. Outside the chain practice please refer to the author's last article, "The most complete chain of resources in the history of the search method."

Included in the decline of your content is low quality recommendations in the content of original more than a little effort.

12. Manual Intervention

This phenomenon is generally only for certain political words or super hot words, ordinary small stations are interfered with very little unless you are lucky to have a special back.

13, update the error caused the site to be down right

This phenomenon can only go to Baidu complaints, if your site is really no big problem will soon be resolved. Original author Yiu Xiaowei does not mention copyright cut your penis: