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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.

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Technologies

See Ya, Siri: Why Apple Might Make Third-Party Voice Assistants Available in Europe

When given the choice, iPhone owners might opt for alternatives given the delayed rollout of Siri’s AI revamp.

Apple is reportedly working on changes to the iPhone’s operating system that will make it possible to choose an alternative voice assistant to Siri.

The ability to switch from Siri to another voice assistant, potentially powered by third-party companies including OpenAI, Google or Meta, could be a reality in the near future, but only for iPhone owners in Europe, Bloomberg reports. Apple didn’t respond to a request for comment.

Apple is preparing the changes to Siri in anticipation of the European Union demanding the company allow European users a choice of voice assistants, according to Bloomberg. It would be similar to the policy shift Apple has already made in allowing rival app stores onto the iPhone, which was sparked by Europe’s Digital Markets Act.

Apple has faced many regulatory hurdles with the EU in recent years, largely in the form of challenges to its proprietary technology and walled-garden ecosystem, which provide Apple device owners with high levels of consistency, privacy and security, but often make it difficult for smaller companies to compete.

These regulatory challenges often leave Apple with little choice but to make significant changes to the way its tech works. Some of these changes — such as switching from Lightning connectors to the universal standard of USB-C — affect Apple device owners globally. Others affect only those who live within the EU.

Siri’s AI troubles

Siri has been available on iPhones since 2011 and has spawned many copycats. But the advent of generative AI over the last few years has brought about a number of chatbots, most notably OpenAI’s ChatGPT, that rival and surpass Siri’s capabilities, to the point where Apple is now seen as lagging behind competitors.

Apple announced an AI revamp of Siri last year at WWDC, its June developer conference, but the company delayed its rollout. Apple Intelligence-powered Siri is still nowhere to be seen, and may not even make an appearance at this year’s WWDC, per Bloomberg.

In light of this, it may be possible that European iPhone owners, when given the option, choose an alternative voice assistant. Unless Apple’s hand is forced, there’s currently no indication that people elsewhere will be given the same choice.

But Thomas Husson, VP and principal analyst at Forrester, doesn’t believe the AI overhaul of Siri is Apple’s main challenge.

«Is Siri’s revamp well overdue? Yes. Does Apple give the impression that they have an AI issue? Yes. It is too late for them? I don’t think so,» he said. Instead, Husson said what’s really at stake for the company is its ability to invent a user interface adapted to the AI era and create an ecosystem with companies and developers that will allow for new experiences within existing apps.

«Meeting the EU regulations and especially the DMA makes things more complex,» he added, but that’s the case for any digital platform operating in Europe.

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Technologies

I’ve Been Tracking Tariff Price Impacts Every Day: Here’s the Latest News

CNET’s tariff impact tracker is keeping tabs on price moves for several popular products, and while things seem steady, problems could be coming this summer.

President Donald Trump’s tariff policies could be leading to a rough summer for a lot of US consumers, as Walmart, the largest grocery store chain in the country, has become the latest company, and perhaps the most impactful, to warn of impending price hikes due to the administration’s import taxes. The company said that these increases are «inevitable» due to the circumstances.

«We will do our best to keep our prices as low as possible,» CEO Doug McMillon said during an earnings call for the country’s largest grocery chain. «But given the magnitude of the tariffs, even at the reduced levels announced this week, we aren’t able to absorb all the pressure given the reality of narrow retail margins.»

This prompted a heated response from the president, who said in a post to Truth Social that the chain should eat the costs of the tariffs instead of passing them onto consumers, a tactic that’s not likely to gain much ground with most businesses, even Goliaths like Walmart. The administration previously lashed out at Amazon over reports that they were considering a plan to show consumers what portion of their purchase prices were caused by tariffs, calling the idea a «hostile and political act.» The Trump White House has by and large been extremely combative over the notion that companies might admit that the president’s tariffs have caused price inflations, which as I’ve explained in the past on CNET, is absolutely the case.

In this article, I’ve been tracking the daily effect of Trump’s tariffs on the prices of 11 popular products you might want or need to buy, whether it be a new phone, laptop or your daily coffee. So far, we’ve seen notable price hikes for the flagship Xbox game console, while everything else has either remained steady aside from occasional fluctuations that might not be tariff-related. That sort of consistency is far from certain, however, especially with new reports emerging that Apple might be looking to make iPhones more expensive this year.

Below, you can check out a chart with the average price of the 11 included items over the course of 2025. This will help give you a sense of the overall price changes and fluctuations going on. Further down, you’ll be able to check out charts for each individual product being tracked.

The recent tariff agreement with China, much-hyped by the White House, did significantly cut tariff rates against the US’s biggest trading partner. The new 30% rate is only temporary, however, and still historically high. It just looks more reasonable next to the ludicrous 145% rate that was previously in place. As those negotiations move along, companies continue to warn of impending price hikes in order to deal with the new tariffs, including Sony, which could potentially mean a price hike for its ever-popular PlayStation 5 consoles.

We’ll be updating this article regularly as prices change. It’s all in the name of helping you make sense of things, so be sure to check back every so often. For more, check out CNET’s guide to whether you should wait to make big purchases or buy them now and get expert tips about how to prepare for a recession.

Methodology

We’re checking prices daily and will update the article and the relevant charts right away to reflect any changes. The following charts show a single bullet point for each month, with the most recent one labeled «Now» and showing the current price. For the past months, we’ve gone with what was the most common price for each item in the given month. 

In most cases, the price stats used in these graphs were pulled from Amazon using the historical price tracker tool Keepa. For the iPhones, the prices come from Apple’s official materials and are based on the 128-gigabyte base model of the latest offering for each year: the iPhone 14, iPhone 15 and iPhone 16. For the Xbox Series X, the prices were sourced from Best Buy using the tool PriceTracker. If any of these products happen to be on sale at a given time, we’ll be sure to let you know and explain how those price drops differ from longer-term pricing trends that tariffs can cause.

The 11 products we’re tracking

Mostly what we’re tracking in this article are electronic devices and digital items that CNET covers in depth, like iPhones and affordable 4K TVs — along with a typical bag of coffee, a more humble product that isn’t produced in the US to any significant degree. 

The products featured were chosen for a few reasons: Some of them are popular and/or affordable representatives for major consumer tech categories, like smartphones, TVs and game consoles. Others are meant to represent things that consumers might buy more frequently, like printer ink or coffee beans. Some products were chosen over others because they are likely more susceptible to tariffs. Some of these products have been reviewed by CNET or have been featured in some of our best lists.

Below, we’ll get into more about each individual product.

iPhone 16

The iPhone is the most popular smartphone brand in the US, so this was a clear priority for price tracking. The iPhone has also emerged as a major focal point for conversations about tariffs, given its popularity and its susceptibility to import taxes because of its overseas production, largely in China. Trump has reportedly been fixated on the idea that the iPhone can and should be manufactured in the US, an idea that experts have dismissed as a fantasy. Estimates have also suggested that a US-made iPhone would cost as much as $3,500.

Apple has made several moves this year to protect its prices in the US as much as possible, like flying in bulk shipments of product ahead of the tariffs taking effect and working to move production for the American market from China to India, where tariff rates are less severe. This latter move provoked a response from Trump, given his noted fixation on the iPhone, saying on Thursday that he «had a little problem» with Tim Cook over the move, claiming without evidence that the Apple CEO pledged to bring more manufacturing to the US. Cook and others close to the company for years say that the supply chains for its products are too complex to move manufacturing entirely to the US.

Duracell AA batteries

A lot of the tech products in your home might boast a rechargeable energy source but individual batteries are still an everyday essential and I can tell you from experience that as soon as you forget about them, you’ll be needing to restock. The Duracell AAs we’re tracking are some of the bestselling batteries on Amazon.

Samsung DU7200 TV

Alongside smartphones, televisions are some of the most popular tech products out there, even if they’re an infrequent purchase. This particular product is a popular entry-level 4K TV and was CNET’s pick for best overall budget TV for 2025. Unlike a lot of tech products that have key supply lines in China, Samsung is a South Korean company, so it might have some measure of tariff resistance. In recent days, this model has fluctuated from $400, where its been for most of the year so far, and $470, where it sits today. These fluctuations don’t seem to be influenced by tariffs, at least for the time being.

Xbox Series X

Video game software and hardware are a market segment expected to be hit hard by the Trump tariffs. Microsoft’s Xbox is the first console brand to see price hikes — the company cited «market conditions» along with the rising cost of development. Most notably, this included an increase in the price of the flagship Xbox Series X, up from $500 to $600. Numerous Xbox accessories were also affected, and the company also said that «certain» games will eventually see a price hike from $70 to $80.

Initially, we were tracking the price of the much more popular Nintendo Switch as a representative of the gaming market. Nintendo has not yet hiked the price of its handheld-console hybrid and stressed that the $450 price tag of the upcoming Switch 2 has not yet been inflated because of tariffs. Sony, meanwhile, has so far only increased prices on its PlayStation hardware in markets outside the US.

AirPods Pro 2

The latest iteration of Apple’s wildly popular true-wireless earbuds are here to represent the headphone market. Much to the chagrin of the audiophiles out there, a quick look at sales charts on Amazon shows you just how much the brand dominates all headphone sales. The AirPods Pro 2 have hovered steadily around $200 on Amazon in 2025, but were on sale for $169 the first few days of May before jumping back up.

HP 962 CMY printer ink

This HP printer ink includes cyan, magenta and yellow all in one product and recently saw its price jump from around $72 — where it stayed for most of 2025 — to $80, which is around its highest price over the last five years. We will be keeping tabs to see if this is a long-term change or a brief uptick.

This product replaced Overture PLA Filament for 3D printers in this piece, but we’re still tracking that item.

Anker 10,000-mAh, 30-watt power bank

Anker’s accessories are perennially popular in the tech space and the company has already announced that some of its products will get more expensive as a direct result of tariffs. This specific product has also been featured in some of CNET’s lists of the best portable chargers. While the price has remained steady throughout the year, it is currently on sale for $16 on Amazon, but only for Prime members.

Bose TV speaker

Soundbars have become important purchases, given the often iffy quality of the speakers built into TVs. While not the biggest or the best offering in the space, the Bose TV Speaker is one of the more affordable soundbar options out there, especially hailing from a brand as popular as Bose.

Oral-B Pro 1000 electric toothbrush

They might be a lot more expensive than their traditional counterparts, but electric toothbrushes remain a popular choice for consumers because of how well they get the job done. I know my dentist won’t let up on how much I need one. This particular Oral-B offering was CNET’s overall choice for the best electric toothbrush for 2025.

Lenovo IdeaPad Flex 5i Chromebook

Lenovo is notable among the big laptop manufacturers for being a Chinese company making its products especially susceptible to Trump’s tariffs.

Starbucks Ground Coffee (28-ounce bag)

Coffee is included in this tracker because of its ubiquity —I’m certainly drinking too much of it these days —and because it’s uniquely susceptible to Trump’s tariff agenda. Famously, coffee beans can only be grown within a certain distance from Earth’s equator, a tropical span largely outside the US and known as the «Coffee Belt.» 

Hawaii is the only part of the US that can produce coffee beans, with data from USAFacts showing that 11.5 million pounds were harvested there in the 2022-23 season — little more than a drop in the mug, as the US consumed 282 times that amount of coffee during that period. Making matters worse, Hawaiian coffee production has declined in the past few years.

All that to say: Americans get almost all of their coffee from overseas, making it one of the most likely products to see price hikes from tariffs.

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Technologies

Preorder a Samsung Galaxy S25 Edge With Free Storage Upgrade and $50 Amazon Gift Card

This new ultra-thin phone can be yours with 512GB of storage for the price of the 256GB model.

The Samsung Galaxy S25 Edge is the latest addition to the existing Galaxy S25 lineup, and its main claim to fame is its impossibly thin design. It’s a solid addition, and it’ll officially go on sale on May 30. You can preorder it right now, and if you do it soon, you can pick up the new Galaxy S25 Edge with a free double-storage upgrade and a $50 Amazon gift card thrown in for good measure. The result is a Samsung Galaxy S25 deal that saves you a total of $170 off your order.

This deal is available across three different colors so make sure to pick the one you like best before ordering. You’ll get the 512GB model rather than the entry-level 256GB model with that gift card included all for $1,100.

The first thing you’ll notice about the Galaxy S25 Edge is its thickness. Or rather, it’s thinness. It comes in at just 5.8mm thick at its edge which is less than the 7.2mm Galaxy S25 and the Galaxy S25 Plus at 7.3mm. Despite the design change compared to the rest of the lineup, this model maintains the same IP68 dust and water resistance using a Corning Gorilla Glass Ceramic 2 display paired with a Gorilla Glass Victus 2 rear panel.

Hey, did you know? CNET Deals texts are free, easy and save you money.

Up front, you’ll find a 6.7-inch display with a 120Hz refresh rate while the familiar 200-megapixel main camera is joined by a 12-megapixel ultrawide shooter. You’ll also find a 12-megapixel selfie camera hiding towards the top of the display. Other features of note include an under-display fingerprint sensor for biometric authentication, 12GB of RAM, and the fast Qualcomm Snapdragon 8 Elite chip.

SMARTPHONE DEALS OF THE WEEK

Deals are selected by the CNET Group commerce team, and may be unrelated to this article.

Why this deal matters

Super-thin phones are set to be a real trend for 2025, with Apple expected to launch the iPhone 17 Air later this year. But with this deal, you can get in on the act right now, all while saving some cash. And if you’re in the Android ecosystem, then this is the thin phone to check out, and soon.

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