Prevent Error 404
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How To Fix 404 Error Page
to Avoid Them By Haig Sakouyan May 01, 2002 Picture this: you want to go 404 error page html shopping so you look for a store in the yellow pages and find the address. Once you get to where the store google 404 error is supposed to be located you discover it's not there anymore. When that happens on the Internet it's called a 404. Considering all the time and effort that you've put into finding this store, I imagine you'd be
Custom 404 Page
pretty upset. I most certainly would. Would you try to find out where the store had moved to? Probably not. That's exactly what happens when a page on your Website comes up as a 404. The potential customer who clicked the inbound link will simply go to another site with a little click of the mouse. What Causes a 404? For those of you who don't know what a 404 is, it's an error that's
500 Error
displayed when a user requests a Web page that's no longer available on the server. This often happens when sites change layout and or page information -- but 404s are by no means unavoidable! In fact, I think it's a safe bet to say that this would never happen if Webmasters and site owners always double-checked their work. Unfortunately, however, too many sites seem to slip through the net. Then, a potential customer performs a keyword search for something that has to do with that business, and the results list includes a page from the site that's recently been taken down -- the page no longer exists. But, as the search engine hasn't sent another spider to the site since the page was removed, it thinks the page is still available, and serves the link in the search results. Guess what happens when the user clicks on the link? They're taken to a 404 page. Online, this is like saying "Hey thanks for trying but we don't want you here." Accordingly, the user will usually just go back to the search engine and click on the listing of one of your competitors. And just like that you've lost a potential customer. A True Story 404 errors caused a real problem for a client of mine who run an online stock site that p
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Http Error 404. The Requested Resource Is Not Found.
with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack 404 file or directory not found Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Check if file exists but prevent 404 error in console from showing https://www.sitepoint.com/errors-5-ways-avoid-them/ up up vote 61 down vote favorite 6 Is it possible to check to see if a file/page exists via JavaScript but prevent the 404 Error from showing up in the console? javascript share|improve this question edited Aug 12 '11 at 4:27 Aziz Shaikh 11.6k73954 asked Aug 12 '11 at 4:01 Muers 1,37411524 Why do you care if the 404 error appears in the console? Developers (and http://stackoverflow.com/questions/7035466/check-if-file-exists-but-prevent-404-error-in-console-from-showing-up other tech savvy types) are the only ones who will ever open the console. –Matt Ball Aug 12 '11 at 4:11 9 Because when scanning the console for errors while debugging, it would be great if these specific 404 errors (that are expected) were muted. –Muers Aug 12 '11 at 4:13 2 At least in Chrome, there does not seem to be a way to suppress these errors in the console. –Matt Ball Aug 12 '11 at 4:33 4 You will have to make a server side script that takes a filename as a parameter and checks if it exists. Then load that script with AJAX –Paulpro Aug 12 '11 at 4:47 1 There are specific cases where it would be gr8 to check on client side if file exists on server. For example when writing unit testing framework, it would be good to check if specified file (module) with tests exists on server before loading, without throwing error. And polluting console is ugly, and in this case undesired. –yoosiba May 7 '12 at 14:51 | show 2 more comments 1 Answer 1 active oldest votes up vote 35 down vote accepted Seems like the answer is: No. Can't avoid ge
In Sign Up Recommendations PageSpeed Avoid a character set in the meta tag Avoid bad requests Avoid CSS @import Avoid CSS expressions (deprecated) Avoid document.write Avoid Flash on mobile webpages (deprecated) Avoid landing page redirects https://gtmetrix.com/avoid-http-404-not-found-error.html Avoid Plugins Combine external CSS (deprecated) Combine external JavaScript (deprecated) Combine images using CSS sprites Defer loading of JavaScript (deprecated) Defer parsing of JavaScript Enable gzip compression Enable Keep-Alive Improve server response time Inline small CSS Inline small JavaScript Leverage browser caching Leverage proxy caching (deprecated) Make landing page redirects cacheable (deprecated) Minify CSS Minify HTML Minify JavaScript Minimize cookie size (deprecated) Minimize DNS lookups (deprecated) Minimize redirects Minimize 404 error request size Optimize images Optimize the order of styles and scripts Parallelize downloads across hostnames (deprecated) Prefer asynchronous resources Put CSS in the document head Remove query strings from static resources Remove unused CSS Serve resources from a consistent URL Serve scaled images Serve static content from a cookieless domain Specify a cache validator Specify a character set early Specify a Vary: Accept-Encoding header Specify a viewport for mobile 404 error page browsers Specify image dimensions Use an application cache Use efficient CSS selectors YSlow Add Expires headers Avoid AlphaImageLoader filter Avoid CSS expressions Avoid empty src or href Avoid HTTP 404 (Not Found) error Avoid URL redirects Compress components with gzip Configure entity tags (ETags) Do not scale images in HTML Make AJAX cacheable Make favicon small and cacheable Make fewer HTTP requests Make JavaScript and CSS external Minify JavaScript and CSS Put CSS at the top Put JavaScript at bottom Reduce cookie size Reduce DNS lookups Reduce the number of DOM elements Remove duplicate JavaScript and CSS Use a Content Delivery Network (CDN) Use cookie-free domains Use GET for AJAX requests YSlow: Avoid HTTP 404 (Not Found) error Overview Fixup any 404 errors to avoid your users fetching content that does not exist. Read More How does your site score on this recommendation? Analyze Details from Yahoo! Making an HTTP request and receiving a 404 (Not Found) error is expensive and degrades the user experience. Particularly bad is when the link to an external JavaScript is wrong and the result is a 404. First, this download will block parallel downloads. Next the browser may try to parse the 404 response body as if it we