Why 404?

daveso

why isn't the error page 702, or 42? Or <strong>ERROR - PAGE NOT FOUND</strong>

Daywalker Designs

https://www.w3.org/Protocols/HTTP/HTRESP.html and https://www.w3.org/Protocols/

Why they chose that specific number range for error codes isn't something I know the answer to.

daveso

  some of that geek stuff.  

xyer0

Don't know either, but you can also go here to see the promos. And by clicking on the cart icon that shows up on the individual product pages, you will be taken to the appropriate daz3d.com promo page.

Chohole

The HTTP 404, 404 Not Found and 404 (pronounced "four oh four") error message is a Hypertext Transfer Protocol (HTTP) standard response code, in computer network communications, to indicate that the client was able to communicate with a given server, but the server could not find what was requested.

The website hosting server will typically generate a "404 Not Found" web page when a user attempts to follow a broken or dead link; hence the 404 error is one of the most recognizable errors encountered on the World Wide Web.

When communicating via HTTP, a server is required to respond to a request, such as a web browser request for a web page, with a numeric response code and an optional, mandatory, or disallowed (based upon the status code) message. In the code 404, the first digit indicates a client error, such as a mistyped Uniform Resource Locator (URL). The following two digits indicate the specific error encountered. HTTP's use of three-digit codes is similar to the use of such codes in earlier protocols such as FTP and NNTP.

At the HTTP level, a 404 response code is followed by a human-readable "reason phrase". The HTTP specification suggests the phrase "Not Found"[1] and many web servers by default issue an HTML page that includes both the 404 code and the "Not Found" phrase.

A 404 error is often returned when pages have been moved or deleted. In the first case, it is better to employ URL mapping or URL redirection by returning a 301 Moved Permanently response, which can be configured in most server configuration files, or through URL rewriting; in the second case, a 410 Gone should be returned. Because these two options require special server configuration, most websites do not make use of them.

404 errors should not be confused with DNS errors, which appear when the given URL refers to a server name that does not exist. A 404 error indicates that the server itself was found, but that the server was not able to retrieve the requested page.

There is more and it must be accurate info as it came from wikipedia  

daveso

Chohole said:

The HTTP 404, 404 Not Found and 404 (pronounced "four oh four") error message is a Hypertext Transfer Protocol (HTTP) standard response code, in computer network communications, to indicate that the client was able to communicate with a given server, but the server could not find what was requested.

The website hosting server will typically generate a "404 Not Found" web page when a user attempts to follow a broken or dead link; hence the 404 error is one of the most recognizable errors encountered on the World Wide Web.

When communicating via HTTP, a server is required to respond to a request, such as a web browser request for a web page, with a numeric response code and an optional, mandatory, or disallowed (based upon the status code) message. In the code 404, the first digit indicates a client error, such as a mistyped Uniform Resource Locator (URL). The following two digits indicate the specific error encountered. HTTP's use of three-digit codes is similar to the use of such codes in earlier protocols such as FTP and NNTP.

At the HTTP level, a 404 response code is followed by a human-readable "reason phrase". The HTTP specification suggests the phrase "Not Found"[1] and many web servers by default issue an HTML page that includes both the 404 code and the "Not Found" phrase.

A 404 error is often returned when pages have been moved or deleted. In the first case, it is better to employ URL mapping or URL redirection by returning a 301 Moved Permanently response, which can be configured in most server configuration files, or through URL rewriting; in the second case, a 410 Gone should be returned. Because these two options require special server configuration, most websites do not make use of them.

404 errors should not be confused with DNS errors, which appear when the given URL refers to a server name that does not exist. A 404 error indicates that the server itself was found, but that the server was not able to retrieve the requested page.

There is more and it must be accurate info as it came from wikipedia  

thanks   it is obvious I do not communicate in http.  sounds like a train or something, four-o- four. 404 to Tulsa, ALL ABOARD 

Ati

daveso said:

Chohole said:

The HTTP 404, 404 Not Found and 404 (pronounced "four oh four") error message is a Hypertext Transfer Protocol (HTTP) standard response code, in computer network communications, to indicate that the client was able to communicate with a given server, but the server could not find what was requested.

The website hosting server will typically generate a "404 Not Found" web page when a user attempts to follow a broken or dead link; hence the 404 error is one of the most recognizable errors encountered on the World Wide Web.

When communicating via HTTP, a server is required to respond to a request, such as a web browser request for a web page, with a numeric response code and an optional, mandatory, or disallowed (based upon the status code) message. In the code 404, the first digit indicates a client error, such as a mistyped Uniform Resource Locator (URL). The following two digits indicate the specific error encountered. HTTP's use of three-digit codes is similar to the use of such codes in earlier protocols such as FTP and NNTP.

At the HTTP level, a 404 response code is followed by a human-readable "reason phrase". The HTTP specification suggests the phrase "Not Found"[1] and many web servers by default issue an HTML page that includes both the 404 code and the "Not Found" phrase.

A 404 error is often returned when pages have been moved or deleted. In the first case, it is better to employ URL mapping or URL redirection by returning a 301 Moved Permanently response, which can be configured in most server configuration files, or through URL rewriting; in the second case, a 410 Gone should be returned. Because these two options require special server configuration, most websites do not make use of them.

404 errors should not be confused with DNS errors, which appear when the given URL refers to a server name that does not exist. A 404 error indicates that the server itself was found, but that the server was not able to retrieve the requested page.

There is more and it must be accurate info as it came from wikipedia  

thanks   it is obvious I do not communicate in http.  sounds like a train or something, four-o- four. 404 to Tulsa, ALL ABOARD 

This is something that an average person doesn't really need to know (I mean the number), but it somehow became a tradition to include the numeric error code on the error page.

Chohole

Personally I want to know who fed the Gremlins a late night meal, so they changed state and have gone on a rampage, releasing random 404s on the poor unsuspecting forum members.

SimonJM

I read the question more as "ok, it's an error, but why associate the number 404 with the erro of 'page not found'?"

I don't know the actual answer, but I do think I know that HTML/web errors come in 'bunches', grouped in 100s, so codes 100-199 give information', 200-299 are an 'ok' codes (no, I don't know why they picked this range!), etc. 300-399 are to do with page redirections.It just so happesn that erros to do with 'um, what, is that page in my otehr jacket?' fell into the 400 range being 'client errors (presumably a 404 (not found) error is a client error as "you asked for the wrong damned page, you muppet, so there!", 500 are server-based errors, including 'not allowed' (I think).

Daywalker Designs

SimonJM said:

I read the question more as "ok, it's an error, but why associate the number 404 with the erro of 'page not found'?"

I don't know the actual answer, but I do think I know that HTML/web errors come in 'bunches', grouped in 100s, so codes 100-199 give information', 200-299 are an 'ok' codes (no, I don't know why they picked this range!), etc. 300-399 are to do with page redirections.It just so happesn that erros to do with 'um, what, is that page in my otehr jacket?' fell into the 400 range being 'client errors (presumably a 404 (not found) error is a client error as "you asked for the wrong damned page, you muppet, so there!", 500 are server-based errors, including 'not allowed' (I think).

Not exactly. 404 not found means exactly that; the page you requested doesn't exist, so the server can't display it for you. It may be that you mistyped something, or the link you followed has an outdated reference to the previous version of the page (not likely when the pages are brand new, like the last few days).

SimonJM

Daywalker Designs said:

SimonJM said:

I read the question more as "ok, it's an error, but why associate the number 404 with the erro of 'page not found'?"

I don't know the actual answer, but I do think I know that HTML/web errors come in 'bunches', grouped in 100s, so codes 100-199 give information', 200-299 are an 'ok' codes (no, I don't know why they picked this range!), etc. 300-399 are to do with page redirections.It just so happesn that erros to do with 'um, what, is that page in my otehr jacket?' fell into the 400 range being 'client errors (presumably a 404 (not found) error is a client error as "you asked for the wrong damned page, you muppet, so there!", 500 are server-based errors, including 'not allowed' (I think).

Not exactly. 404 not found means exactly that; the page you requested doesn't exist, so the server can't display it for you. It may be that you mistyped something, or the link you followed has an outdated reference to the previous version of the page (not likely when the pages are brand new, like the last few days).

I know, it was said in a spirit of irony - the server not having, for whatever reason, the page you requested IS likely to be a PEBKAC issue more than a pouting, teenage server sulking 

Peter Wade

Further research (i.e. mucking around on Google) turned up two stories. One was that room 404 at Cern was where the first web servers were located. However another page said that this is a myth and there is no room 404 at Cern. I don';t feel like going to Geneva to check this out, they probably wouldn't let me in anyway. Any nuclear physicists here care to comment? 

kyoto kid

...meanwhile at Giants Stadium in San Francisco:

ItsCeo

Because there were too many giggles at the original name '420 Not Found'?

Victor_B

Error 404 means "the page (that you requested) doesn't exists".
I saw it several times on daz3d.com too.
Deсision? For daz3d.com just reload this page (hot key F5).
My explanation: as daz3d.com has big traffic (i think nearly 4.5M visitors per months) they use 3d-party service for caching all pages (except forum I gess). That means that there are several cache servers in the World with copies of daz3d.com site. European visitors see copy from server in Europe (Germany for example), american visitors - from server in New York etc. Sometimes the cache of concrete page is lost on this server (cachetime expires for example) and you see 404 error. And when you click "Reload" a new copy of this page will be created on this cache server and you will see it.

Sorry for my English.
And "Yes", welcome to posercontent.com. It not using any third-party cache service so the site works forever. I gess :)