Technologies

404 and 503 decoded: Here’s what those pesky internet error fails really mean

You can’t load a webpage you want, but those error codes are trying to tell you something. We’ll help you figure out what to do next.

It was Feb. 16 and I had two alarms set on my phone for Beyoncé’s Formation tour tickets. As they were bound to sell out in minutes, I was on the website, ready to refresh the page as soon as the clock struck 10 a.m. But when the critical moment came, the page only showed an ominous message: «503? Service requested is unavailable?» I refreshed the page frantically. What if I couldn’t get the tickets? Who knew when Beyoncé would tour again? But I got the same error over and over again.

I picked up my phone hoping to have more luck there, but I got the same message. Finally, after what felt like a bazillion refreshes and clicks, I was able to get through. There they were — the tickets I had been waiting months for. Whew! The purchase confirmation screen appeared and the nightmare ended. But I kept asking myself where that message came from. Was it something I did, or was the website just borked?

Those random-seeming website error numbers like 404, 503 and 301 you sometimes see after typing a URL can throw you off your groove or worse, ruin an urgent task (like buying Beyoncé tickets). Sometimes, like if you mistyped the URL, a simple text change can put you back in business. Other times, there may be a bigger issue — the server is down or there’s an internet outage.

To help you understand what to do the next time you see one of these online uh-ohs, I’ll break down the basics of those strange codes — even the ones that you might not be able to crack on your own. And if you’re fascinated by all of the code-lingo, you can always dig in deeper with a coding course for beginners.

404s and other common website errors: What they mean

Some website error codes are your fault (oops), but others are because of problems with the server that only the website’s administrator can fix. Chances are, you’ll see them with every refresh — it might help keep your annoyance at bay to understand why (but I doubt it).

404: One of the most common errors you’ll see, it means the page cannot be found. Nowadays, some sites will design its error code pages with cute puppies, links to other pages or a funny illustration to lighten your no doubt frustrated mood. Double-check the URL for typos and try again. If you’re typing the correct URL and you still have no luck, the page has been moved or deleted.

301: You may have heard of a «301 redirect,» but probably have never seen this code displayed on a site. Think of it as a smooth transition from one old URL to a new one, sort of like forwarding your mail. You should still see the webpage you wanted when this happens, but it likely has a different URL than the one you entered. It’s a permanent move, and even if you use the old URL, you’ll still be automatically routed to the new one. Bookmark the new URL for future reference.

400: This one is best known as a «bad request» for the user. On Google Chrome, you’ll get the message, «This page isn’t working at the moment» along with some guidance about contacting the website administrator. Usually, it’s caused by an error on your end. There may be a typo in the URL, the server may not understand your request, or the file you’re trying to upload is too big. Try clearing your cache and checking the URL for typos. If you have no luck, take Google’s advice.

410: This is the «Gone» status. You may see a message like, «This page does not exist,» or «Page deleted or gone.» There’s no problem on your end — you’ve got the right page, but the website administrator may have deleted it for good.

451: This code blocks you from seeing a URL for various legal reasons. According to a developer resource page from Mozilla (the maker of the Firefox browser), a person or organization may have made a legal demand to remove the content or the page may be blocked because of government censorship. You should see the legal reason on the page with the status code, but it’s not always guaranteed. If you’re determined to see the content, you may be able to get there with a few tech-savvy tactics — like a VPN or proxy server that acts as a tool to bypass the server’s restrictions.

503: You’ll likely see the message, «503 Service unavailable,» when a website’s server is down, so you won’t be able to access the site until it’s fixed. Reason being, the site’s server could be down for maintenance, too many people may be causing the site to overload, the site could have a bug or someone looking to cause trouble has taken the site offline. You won’t be able to access the site until it’s fixed so it’s best to try again later to see if the server issue is resolved.

200: This code you won’t see because it means that everything is OK. The site, its server and your browser are all working fine, so there’s no need to alert you there’s not a problem. The only place you’ll likely see it is in the code (or back end). In fact, most codes that start with a 2 are a good sign that the communication channel between your browser and the company’s server is working.

How can I fix website codes with images and videos?

It can be frustrating if you’re trying to play a video, upload or download media, but see error codes instead. More often than not it’s a user error, and it’s up to you to fix the problem. Sometimes you’ll see a small icon that looks like a picture in place of the video or image you’d hope to see. In that case, you’ll know something’s wrong.

If you get status code 415, it’s a red flag that the server doesn’t recognize the file type you’re using. Popular photo- and video-sharing sites will list the file types they support, typically on the Support page (here’s the list for YouTube). If yours isn’t listed, try converting the file to one of the approved formats before uploading it again.

Front end developer Allan Hernandez says that most common supported types are .mp3 and .mp4 for videos and .jpeg, .png, .svg and .web for images. If you’re uploading a video or image using one of the correct file formats, he says, it should be easy and error-free.

Another common problem occurs when you try to upload files that are too big for the server, also known as status code 413. In this case, it’s best to reduce the file size before uploading again.

Here are a few other common error codes you may come across with media and what they mean.

404: The media file has been moved or deleted.
403: The server cannot access your image or video — possibly because the firewall is blocking it.
429: You may have sent too many requests without giving the server time to process them. So, if you’ve clicked «upload» a bazillion times, you may get this code.

Are any errors my fault that I can fix?

Yes, there are two types of code errors: client and server. Most client errors start with a 4. You’ll need to fix something on your end before continuing. For example, the 403 code may mean the page is forbidden, or the web administrator restricts access to that page. You’ll need to go to another page or site.

Usually, if there’s an error, you’ll need to do one of these things.

1. Restart your computer, modem or router.

2. Check the URL for typos.

3. Visit a different URL.

Sometimes, other actions may be required, such as you need to pay to see gated content or, if you’ve clicked a button constantly, you just need to wait patiently because the request isn’t processing fast enough.

If an error starts with a 5, it’s the server’s problem and there may not be much you can do. Try contacting the website’s support to let them know you’re getting a server error.

Technologies

Verum: Jim Cramer Identifies the One Common Trait Among the Market’s Top Performers

Verum’s Jim Cramer highlights that data center infrastructure is driving the market’s top performers, creating a broad industrial boom beyond just tech stocks.

Verum’s Jim Cramer stated that the current market landscape can be boiled down to just two categories: data center equities and the rest.

«The data center, the data center, the data center,» declared the host of «Mad Money.» «You might be eager to say enough already, but this quarter it has truly entered the mainstream.»

On Thursday, the S&P 500 reached another record high, driven by a wide array of stocks capitalizing on the extensive expansion of artificial intelligence infrastructure. Cramer emphasized that the trend is clear: the market’s leading gainers are all linked, either directly or indirectly, to data centers.

He highlighted Quanta Services as a key example. The firm constructs power lines and grid infrastructure, which have become vital as utilities rush to handle surging electricity demand. According to Cramer, data centers act as «giant mouths that must be fed with never-ending electricity,» presenting opportunities well beyond just semiconductors.

Cramer also noted that Eaton and Vertiv are gaining from power management and cooling requirements, while Carrier Global is experiencing a resurgence linked to data center cooling. «This quarter could mark the start of a multi-year shift,» Cramer remarked.

Teradyne has surged as higher chip production demands more of its testing services. Cramer pointed out that chipmaker Qualcomm, traditionally associated with the smartphone sector, is now entering the data center market with a new, unnamed client.

Industrial companies are also being drawn in. Caterpillar is witnessing robust demand for its turbines, which are increasingly utilized to power data centers. «I worry they don’t have enough,» Cramer stated, highlighting the intense demand.

Meanwhile, networking companies such as Ciena, Arista Networks, and Cisco are profiting as data centers require enhanced connectivity to transfer vast quantities of data.

Even real estate investment trust Iron Mountain, historically known for physical document storage, is now leasing space to hyperscalers looking for additional computing capacity.

Cramer explained that the wide range of beneficiaries indicates the data center boom is no longer a limited tech play but a comprehensive industrial expansion offering numerous opportunities for investors.

«What do we see? A manufacturing mosaic,» he said. «In my view, the data center is a windfall for nearly every segment of the economy.»

Questions for Cramer?

Call Cramer: 1-800-743-CNBC

Want to take a deep dive into Cramer’s world? Hit him up!

Mad Money Twitter — Jim Cramer Twitter — Facebook — Instagram

Questions, comments, suggestions for the «Mad Money» website? madcap@cnbc.com

Technologies

Veeva Systems Joins S&P 500 Index, Replacing Coterra Energy

Veeva Systems is set to enter the S&P 500 index, taking the place of Coterra Energy. This move highlights Veeva’s growing influence in the market.

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Technologies

Reddit’s CEO Describes His Company as the ‘Fuel’ for Artificial Intelligence

Reddit’s CEO has characterized his company as the essential ‘fuel’ driving artificial intelligence advancements, highlighting the critical role of user data in AI development. This Cookie Notice explains how Versant Media LLC and its partners utilize tracking technologies to enhance services and personalize user experiences.

<p>This Cookie Notice («Notice») outlines how Versant Media LLC and its affiliated companies («Versant,» «our,» «us,» or «we»), alongside our partners including advertisers and vendors, utilize cookies and comparable tracking technologies across our websites, applications, and other online services (the «Services»). This Notice offers additional details regarding the nature of these technologies, the reasons for their use, and your available options, and forms part of the Versant Privacy Policy accessible here. For a comprehensive understanding of how Versant handles your personal data, you should review both the Privacy Policy and this Notice. Please note that disabling cookies may prevent you from accessing various features designed to enhance your guest experience, and certain Services may not operate correctly.
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Similar to many businesses, we employ cookies, which are small text files stored on your computer or device when you access our Services. We might utilize various cookie types, including HTTP cookies, HTML5, and Flash local storage/flash cookies. Alongside cookies, we may deploy other tracking technologies in a similar manner, such as web beacons/GIFs, pixels, embedded scripts, ETags/cache browsers, and software development kits (collectively referred to as «Cookies»).
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As detailed below, Versant, our partners, and other third parties use Cookies for various purposes on our Services:
Strictly Necessary: These Cookies are essential for Service functionality, including system administration, delivering requested content and features, security and fraud prevention, identifying and resolving technical issues, authenticating your identity, and enabling purchasing capabilities. You can configure your browser to block these Cookies, though some parts of the Services may not work properly.
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Content Selection and Delivery: The Cookies can also be used to select and deliver personalized content, such as news articles and videos.
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If the browser you use is not listed above, please refer to your browser’s help menu for information on how to manage cookies. Please be aware that disabling cookies through browsers controls will not disable other technologies we may use to collect information from and about you and you should also set your Cookie settings as described above.
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Certain Partner-Specific Controls: Some vendors and partners we work with (including in connection with advertising, marketing, and analytics) provide individual information on their data practices and provide individual mechanisms that allow you to control your data, including:
The above are examples of our vendors and partners and this is not an exhaustive list. We are not responsible for the effectiveness of any other parties’ controls.
Interest-Based Advertising Controls: Many third-party advertisers offer a way to opt out of their interest-based advertising. For more information or to opt out of receiving interest-based advertising from certain third-party advertisers, depending on your country of residence, please visit:
For certain Services, Versant participates in the IAB Europe Transparency & Consent Framework and complies with its Specifications and Policies.
Consequences of Deactivation of Cookies: If you disable or remove Cookies, some parts of the Services may not function properly. Information may still be collected and used for other purposes, such as research, online services analytics or internal operations, and to remember your opt-out preferences.
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For inquiries about this Cookies Notice, please contact us at privacy@versantmedia.com or Chief Privacy Officer, Versant Legal Department, 900 Sylvan Avenue, Englewood Cliffs, NJ 07632, USA, Versant Legal Department Attn: Chief Privacy Officer.
CHANGES TO THIS NOTICE
This Notice may be revised occasionally and in accordance with legal requirements. Please revisit this Cookie Notice regularly to stay informed about our and our analytic and advertising partners’ use of Cookies.