SEO Glossary Terms Beginning with “0-9”

SEO Glossary terms, Abbreviations, Acronyms, Initialisms for terms related to – 0-9 like 301, 302, 404 code, 500, etc

301 Moved Permanently

The code “301” is can be defined as “moved permanently”. Using the 301 code, you can redirect the webpage, web folder, or complete website to a new location without losing your search engine link popularity. It is the most common and search engine-friendly method for moving one page to another location. How fast the search engines implement your instruction depends upon the frequency of search engine crawlers to your site and the authority of your domain. If you move a website from one domain to another, it is the best way to use 301 redirect transfer of pages from the old website to the new website.

302 Found

The code “302” can be defined as a page “found” but temporarily located or residence at a different URI. Some search engines are uncomfortable with this code, and sometimes, it is hijacked.  The redirect checker tool can be used to find a page’s 301 and 302 redirection status.

200 OK

It can be defined as a request that has been “successful” various methods can be used to get the response, like GET, HEAD, POST, and TRACE. The HTTP 200 OK success status response code indicates that the request has succeeded. A 200 response is cacheable by default. The client has asked the server for documents. The server has responded to the client and delivered the documents. Everything is fine. If the document’s status is 200, search engine crawlers like Googlebot will surely crawl the page.

404 Not Found

The HTTP 404 Not Found response or error status code indicates that the request you sent for a document was not found. Simply the page you are looking at on the website is not there and returns 404 Error or page not found.  Links leading to a 404 status document are known as dead links, broken links, or error links. The most common reason for the 404 error is that you removed the pages and have not used the redirect code. Another reason can be that you changed the slug of the URL or path of the URL and the server document status goes 404.  Link checker can help you in finding 404 pages on your website.

List of Server Codes

200 OK
201 Created
202 Accepted
203 Non-Authoritative Information
204 No Content
205 Reset Content
206 Partial Content
300 Multiple Choices
301 Moved Permanently
302 Found
303 See Other
304 Not Modified
307 Temporary Redirect
308 Permanent Redirect
400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Acceptable
407 Proxy Authentication Required
408 Request Timeout
409 Conflict
410 Gone
411 Length Required
412 Precondition Failed
413 Payload Too Large
414 URI Too Long
415 Unsupported Media Type
416 Range Not Satisfiable
417 Expectation Failed
418 I’m a teapot
422 Unprocessable Entity
425 Too Early
426 Upgrade Required
428 Precondition Required
429 Too Many Requests
431 Request Header Fields Too Large
451 Unavailable For Legal Reasons
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported
506 Variant Also Negotiates
507 Insufficient Storage
508 Loop Detected
510 Not Extended
511 Network Authentication Require

Various Response Status

Informational responses
Successful responses
Redirection messages
Client error responses
Server error responses