Luquan SEO training: Several status codes that you should know about SEO learning

For SEO specialists, learning to analyze website logs is a necessary skill. Do you know the various status codes of Spider? Using the status code to understand the current status of your website will play a vital role in your website optimization.

Several status codes that you should know about when studying SEO

1. Status codes starting with 2:

200 OK; the request was completed.

201 OK; immediately following a POST command.

202 OK; accepted for processing, but processing is not yet complete.

203 OK; Partial Information - The information returned is only partial.

204 OK; No Response — The request was received, but there is no information to send back.

This type of status code indicates that the website access is normal. If the website server status code is all 200 codes, it means that the website content optimization is relatively OK. This is the optimal status code performance.

Status codes starting with 2 or 3:

301 Moved — The requested data has a new location and the change is permanent.

302 Found — The requested data temporarily has a different URI.

303 See Other - The response to the request can be found under another URI and should be retrieved using the GET method.

304 Not Modified — The document was not modified as expected.

305 Use Proxy - The requested resource must be accessed through the proxy provided in the Location field.

306 Unused — No longer used; this code is reserved for future use.

This type of status code basically indicates that there is a jump in this page. The most noteworthy and familiar one should be the 301 status code. Simply put, this is a permanent redirection. Generally, webmasters will use this jump function in terms of preferred domains. It is also worth pointing out that since many black hat personnel like to cheat by using jumps, from the perspective of search engine friendliness, it is better to have fewer jumps in web page recommendations.

Status codes starting with 3 or 4:

400 Bad Request — There was a syntax problem in the request, or the request could not be fulfilled.

401 Unauthorized — The client is not authorized to access the data.

402 Payment Required — Indicates that the billing system is active.

403 Forbidden — Access is not required even if authorized.

404 Not Found — The server could not find the given resource; the document does not exist.

406 Not Acceptable - The resource identified by this request can only generate response entities whose content is characterized as "Not Acceptable" according to the "Accept" headers sent in this request.

407 Proxy-Authorization-Request - The client must first authenticate itself with the proxy.

410 The requested page does not exist (permanent);

415 UnsupportedMediaType - The server is refusing to service the request because the format of the request entity is not supported.

This type of code is the most disadvantageous one. It basically reflects that the spider cannot access the website normally, especially when there are many pages on the site that return 404. In this case, you must be very careful, as the website may be devalued at any time. The webmaster should find these pages in time, and either block or delete them. If necessary, it is best to submit the 404 page to the search engine in time.

Status codes starting with 4 or 5:

500 Internal Error — The server could not complete the request due to an unexpected condition.

501 Not Implemented — The server does not support the requested tool.

502 Bad Gateway — The server received an invalid response from an upstream server.

503 Service Unavailable — The server is unable to process the request due to a temporary overload or maintenance.

This type of code reflects that there is a problem with the website's server. The spider cannot enter the server at all. This kind of harm is also very serious. It is very likely that the website will be downgraded immediately after being encountered by the spider. At this time, the webmaster should take a closer look at whether there is a problem with his server. The best way is to contact your website service provider directly.

Chongqing SEO has introduced several status codes that you need to know about SEO learning. For SEO, you may wish to go to Baidu's related SEO learning forum, read more questions from others, understand other people's problems, and see whether you can solve them. If you can't solve them, see how others answer. This is a relatively fast way to learn SEO, which can quickly allow you to master more intrinsic knowledge points in the SEO field.