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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.

Technologies

Meta Confirms Testing of Premium Instagram, Facebook and WhatsApp Subscriptions

The company says it’s testing paywalled premium sharing and AI features.

People using Instagram, Facebook and WhatsApp may soon need to decide whether they want to pay extra for additional features beyond the free versions they’ve been using.

Meta confirmed that it’s planning to roll out and test premium subscription tiers for its three most popular services, which, according to the company, would unlock «special features and more control over how they share and connect,» according to a TechCrunch report detailing the changes.


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A representative for Meta did not elaborate on subscription plans, but confirmed to CNET that TechCrunch’s story is accurate.

According to the report, this would differ from the Meta Verified badge offering aimed at businesses and internet content creators. Meta Verified starts at $15 and includes enhanced support options and protections against impersonation.

Instead, the new subscriptions that Facebook, Instagram and WhatsApp users can expect will offer a broader Premium experience, but it’s unclear so far which specific features will be included. According to TechCrunch, AI will be a part of that mix with potential paywalls or extra access to AI image generators or AI agents as part of its plans. What bundles and subscriptions are offered could change based on customer feedback, Meta told TechCrunch.

Subscriptions for once-free social media services are now common, with LinkedIn, X (formerly Twitter) and Snapchat all giving people the option to pay more for extra features.

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Technologies

I Avoided Using a Sports Watch Until I Tested This One by Garmin

Garmin Venu 4 Review: It’s the best-looking sports watch I’ve tested, with all the fitness metrics you need to level up your training, for a price.

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Headshot of Vanessa Hand Orellana
Vanessa Hand Orellana Lead Writer
Vanessa is a lead writer at CNET, reviewing and writing about the latest smartwatches and fitness trackers. She joined the brand first as an on-camera reporter for CNET’s Spanish-language site, then moved on to the English side to host and produce some of CNET’s videos and YouTube series. When she’s not testing out smartwatches or dropping phones, you can catch her on a hike or trail run with her family.
Expertise Consumer Technology, Smart Home, Family, Apps, Wearables
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Garmin Venu 4

Pros

  • Week-long battery life in smartwatch mode
  • Polished circular design
  • Advanced fitness and recovery metrics

Cons

  • $100 more than previous generation
  • Software can feel sluggish
  • UI is not as intuitive as other smart watches

Until the Garmin Venu 4 landed on my wrist, I mostly shied away from using dedicated sports watches from brands like Garmin or Polar as my daily driver. Part of that was imposter syndrome; I’m a fitness enthusiast, not a full-blown athlete (yet). But mostly, I wasn’t willing to accept the trade-offs that came with them: clunky software, limited smart features and designs that felt more like gym gear than something I’d want to wear all day.

The Venu 4 isn’t the only good-looking sports watch on the market, but it’s the first one that’s come close to convincing me to go all-in. It’s well-rounded (literally and figuratively) and packed with fitness features that don’t feel condescending to an athlete wannabe like me.

The line between sports watches and traditional smartwatches seems to get blurrier each year. Both Apple and Samsung now have rugged Ultra smartwatch lines, and sports watches are starting to look (and act) more like traditional smartwatches.  

The Venu 4 feels like Garmin’s strongest attempt yet to bridge these two worlds. It goes all out on fitness features with advanced insights like training readiness and suggested workouts typically reserved for the top-tier Fēnix models, but has a design and a price that are approachable for people who live somewhere between casual fitness enthusiast and aspiring athlete. 

The $550 price (for both 41mm and 45mm models) is $100 more than its predecessor, and upgrading from the Venu 3 makes sense only if you plan to use the data it provides. If you’re someone who mostly just wants the occasional workout tracking, then the Venu 4 will be overkill. 

I may not be a full convert (yet), but after weeks of living with it day and night with the Venu 4, I get the Garmin obsession, and I can see how a sports watch could help me level up my fitness journey when I’m ready. 

Venu 4 fitness: Garmin’s core strength

The Venu 4 supports what feels like every workout imaginable, from running and cycling to rowing, HIIT, and even golf course mapping. It supports multi-band GPS, which I found provided more accurate location tracking, even on trail runs without my phone. Heart rate tracking stayed impressively close to my Polar chest strap after the initial jump from resting to higher-intensity sprint.

Garmin’s strength isn’t just the sheer volume of data it collects, but how it helps you understand how those metrics impact your training. On the Venu 4, you get heart rate, breathing rate, blood oxygen, stress, ECG, skin temperature changes, HRV, and advanced sleep and menstrual cycle tracking.

On their own, these metrics can feel overwhelming or even meaningless. What Garmin does especially well is connect the dots through features like Body Battery, Training Readiness, Load and other recovery insights that translate raw data into a clearer picture of how prepared your body is for activity. And because you’re not constantly taking it off to charge, Garmin can build a more complete picture of your health and recovery that becomes more accurate over time.

I found waking up to a low Body Battery score when I felt off was both depressing and validating: no, I probably can’t just «shake this one off,» and yes, I should probably take a rest day (or two) before getting back to that New Year’s resolution. 

The watch also highlights when you’re theoretically at your best to work out, even if real life doesn’t always cooperate. There’s no greater irony than seeing I’m in «peak» training readiness while rocking my toddler to sleep, or hustling to get a story in on time. That’s ultimately my biggest barrier to fully crossing over into the Garmin ecosystem. I’m not always in a position to follow the advice that makes these metrics most valuable.

Garmin Connect Plus subscribers ($7 per month) get access to personalized coaching plans and daily suggested workouts that adapt based on their sleep, recovery and activity history. I tried a running plan to prep for a 10K, but by day three, I’d gone rogue and settled back into my tired, but realistic, workout routine. Learning new routines takes time, and at this stage of life, 20-minute workouts squeezed between everything else will have to suffice.

Venu 4 battery life: Amazing for a smartwatch, but meh for a Garmin

The Venu 4’s shiny new upgrades (brighter display and improved GPS tracking over the Venu 3) come at a slight cost to battery life: You get 12 days on the Venu 4 versus 14 on the Venu 3. But I think it’s well worth it when you factor in everything else it has. 

I averaged about 10 days of battery life per charge for the smaller 41mm Venu 4 that I tested. But that’s in smartwatch mode, which disables the always-on display. If, like me, you prefer the always-on display, battery life drops. I got roughly four days on a charge (slightly less on long hiking days when the GPS was running). It’s not quite multiweek endurance like Garmin’s Enduro or Instinct lines. But even at the lower end, the Venu 4 is still far better than most Apple and Samsung watches.

I’ve never worn a smartwatch this long without taking it off for a charge, which turns out can be both a good and a bad thing. On the plus side, it made sleep tracking more consistent, which is key to unlocking Garmin’s best features like Body Battery, HRV (heart rate variability) and recovery insights. Wearing the watch for so long is also important for identifying long-term health trends and detecting early signs of illness.

The flip side of wearing it nonstop was skin irritation. After about five straight days, the skin directly under the watch became red and itchy. I tried to power through it, which only made things worse. A perfect storm of winter weather, a suppressed immune system, and the polymer backing on the underside of the watch likely didn’t help matters. After taking a week off, cleaning it more regularly, and giving my skin the occasional break, the issue hasn’t returned. And if you have sensitive skin like me, it’s probably worth building in a little breathing room.

Venu 4 design: Not your average sports watch 

The Venu 4 is hands down one of the best-looking watches I’ve tested (Note: I didn’t say sports watches). It even earned its fair share of compliments from friends who didn’t know it was a sports watch. The Venu 4 comes in two sizes, 41mm and 45mm, both with a 1.4-inch AMOLED screen and a stainless steel case in lunar gold, slate, or silver finishes. It’s covered in Gorilla Glass 3 and has a fiber-reinforced polymer back.

The bezels are larger than those on an Apple Watch Series 11, and the usable screen area feels smaller than expected. The Venu 4’s display is bright and legible even in direct sunlight. You might not find it as responsive to touch if you’re coming from an LTPO OLED or Super AMOLED display with a higher refresh rate, like those on Apple or Samsung watches. Which is why the physical button navigation is so important. 

Garmin slimmed the design down to two physical buttons (the Venu 3 had 3). One button brings up navigation, while the other handles quick settings. Long-pressing the bottom button activates other actions, like the flashlight, but until muscle memory kicks in, it’s easy to forget which one does what. 

The built-in LED flashlight is a standout feature. It’s an actual light embedded in the side of the watch, not a screen-based workaround like found on other smartwatches. It’s surprisingly powerful and incredibly useful, whether you’re doing an ultramarathon or, in my case, checking on a sleeping kid without turning on any lights.

Venu 4 watch basics: Functional, but not seamless

On paper, the Venu 4 checks most of the smartwatch boxes. It has notifications, mobile payments via Garmin Pay, music storage, voice assistant access (via your phone) and supports calls from your wrist. Android phone owners get the added perk of responding to texts from the watch; iPhone owners are out of luck.

In my testing, this is where Garmin still lags behind true smartwatches. Everything works, but it’s not seamless; simple actions often take more steps than they should, and Garmin’s app ecosystem remains limited. Even changing your watch face requires an additional phone app (Garmin IQ). The upside is cross-platform compatibility, and aside from the ability to respond to texts, the experience is consistent across iOS and Android.

Venu 4 accessibility features

Garmin has also added more accessibility options in the Venu 4. There are spoken watch faces that read out time and health data, hourly audio alerts, and multiple color filters for people with color blindness.

Venu 4: Final thoughts 

I’m still a practical generalist in the throes of working motherhood, but the Garmin Venu 4 is the closest I’ve been to going full sports watch. If I were ready to make fitness a true priority, the Venu 4 would be my gateway Garmin watch. 

It’s a solid pick for anyone looking to cross over into the sports watch world for the first time, and it’s one of Garmin’s most well-rounded options. The Venu 4 has enough battery to get you through the week, training insights that feel genuinely helpful rather than overwhelming, and a design that’s polished enough to pass for date-night-ready.

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Technologies

Marathon: Release Date, Open Preview Weekend and More

Bungie’s extraction shooter has a new release date, and it’s coming soon.

Marathon is the next game from Bungie, the acclaimed studio behind the Halo and Destiny franchises. The developer’s new game was originally set to come out last September, but the lukewarm reception it received from players who tried out the game’s alpha test led Bungie to delay the release to give it some fine-tuning.

It appears Bungie is ready to try again, as it confirmed that Marathon will be released this March. The company revealed the new release date on Jan. 19, when the pre-order trailer for the game was uploaded to YouTube


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When does Marathon come out? 

Marathon will be released on March 5 for PC, PS5 and Xbox Series X|S consoles and will cost $40.

Will there be a Marathon playtest? 

Yes. The official Marathon X account posted on Jan. 19 that there will be an open preview weekend before the game’s launch. 

What is Marathon? 

Marathon is an action first-person shooter series developed by Bungie, first released in 1994 for the Apple Macintosh. It and the following two games of the original Marathon trilogy are science fiction mysteries set in the 28th century, when humans travel across space in starships. One of them, the UESC Marathon, is attacked by aliens until only a lone security guard, the player, is left to fight them off. Players discover that the ship’s artificial intelligence, called Durandal, has gone sentient and evil, and even called aliens to attack the ship. The following games have players uncovering the mysteries behind Durandal and other ancient AIs that have been manipulating alien races. 

The series was Bungie’s first hit, and it was innovative in its time for revealing story segments through computer terminals, where you could read messages from the different AI running the ship, as well as crew diaries. 

In this new version of Marathon, players will visit Tau Ceti IV, the planet that humans from the UESC Marathon settled. The year is 2893, and something has caused many of the colonists to disappear. Survivors have formed different groups to savage what they can from the colony. The people doing the savaging are known as «Runners,» who are humans trained in combat and who use cybernetic modifications to survive on the planet. Players will create their own Runner to get loot and learn what happened to the colony as they fight off aliens as well as other Runners. 

What is an extraction shooter? 

An exaction shooter is a type of online multiplayer game where the focus isn’t just about killing enemies or other players. Instead, the objective revolves around scavenging loot and completing missions. 

To make things exciting, players can only extract loot at designated locations in the game world. And to complicate things even further, the start of the extraction process will include some signal that alerts both enemies and players within the vicinity. This means you’ll have to defend yourself for a short period of time from what could be waves of computer-controlled enemies or human players who may or may not try to steal your loot. 

Some of the most popular extraction shooters out right now are Arc Raiders, Escape from Tarkov and Helldivers 2.

How is Marathon related to Halo? 

Marathon was Bungie’s first hit series, but it was Halo that made the developer a household name. While the two game franchises do not have any firm narrative connections, there have always been subtle references to the Marathon games in Halo. Bungie has said that Halo is more of a spiritual successor to Marathon, but there are fan theories connecting Marathon, Halo and even Bungie’s other major franchise, Destiny. 

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