Why is the internet down today? What usually goes wrong when the web breaks

Why is the internet down today? What usually goes wrong when the web breaks

You wake up, reach for your phone to check the headlines or your email, and nothing loads. The spinning wheel of death greets you. It’s frustrating. It’s annoying. Most of all, it feels personal, even though it almost never is. If you're wondering why is the internet down today, you aren't alone, and honestly, the answer is usually buried in a mess of fiber optic cables, server racks, or a line of bad code.

The internet feels like this invisible, magic cloud. It isn't. It’s a physical, fragile grid of wires and massive data centers that occasionally just... stop working. Sometimes it’s a localized issue with your router. Other times, it’s a global catastrophe because a technician in Virginia made a typo.

The usual suspects: DNS and CDN failures

Most of the time when people ask why is the internet down today, they don’t mean the whole internet is gone. They mean the big stuff—Amazon, Netflix, Reddit—is unreachable. This usually points to a failure at the "backbone" level.

Think about Cloudflare or Akamai. These are Content Delivery Networks (CDNs). They sit between you and the website you want to visit. If Cloudflare has a "bad day," half the internet goes dark. We saw this back in 2022 when a massive chunk of the web vanished because of a network configuration change. It wasn't a hack. It was just a mistake. These companies are the structural pillars of the modern web, and when one pillar cracks, everyone feels it.

Then there’s DNS. This is the internet's phonebook. It translates a name like "https://www.google.com/search?q=google.com" into an IP address that computers understand. If the DNS provider—like AWS Route 53 or Google Public DNS—hits a snag, your computer won't know where to go. The site is still there, but you don't have the map to find it.

The physical world vs. the digital one

We forget about the literal cables.

Subsea cables run across the floor of the Atlantic and Pacific oceans. They’re about the thickness of a garden hose. Sometimes, a literal shark bites one. More often, an anchor from a cargo ship drags across the seabed and snaps a line. When a major cable near the Red Sea or the English Channel gets severed, entire regions experience massive slowdowns or total blackouts.

Land-based fiber isn't much safer. "Backhoe fade" is a real industry term. It’s what happens when a construction crew accidentally digs up a primary fiber optic line. One scoop of dirt can take out high-speed access for an entire city. If you’re seeing a localized outage, check for orange cones down the street.

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BGP: The internet's fragile routing system

Border Gateway Protocol (BGP) is basically the postal service of the internet. It tells data packets which path to take to reach their destination. BGP is famously "trust-based," which is a terrifying way to run a global network.

In 2021, Facebook (Meta) famously "disappeared" from the internet for hours. They didn't just have a glitch; they effectively deleted the map that told the rest of the world where their servers were located. Because their internal systems also relied on that same network, their employees couldn't even badge into the buildings to fix the servers. It was a digital lockout. When BGP routes are misconfigured, it's like a city's GPS suddenly deciding that every road leads to a dead end.

How to tell if it's just you

Before you call your ISP and wait on hold for forty minutes, do some quick detective work.

  1. Check DownDetector. This is the gold standard. If you see a massive spike in reports for your provider or a specific site, the problem is definitely not on your end.
  2. The "Rule of Three." Try three different apps. If Instagram is down but YouTube works, your internet is fine—Meta is just having a moment.
  3. Toggle the Wi-Fi. It’s a cliché for a reason. Routers get "tired." They run out of memory or get stuck in a loop. Power cycling—unplugging it for 30 seconds—clears the cache and forces a new handshake with your ISP.

Is it a cyberattack?

People love to jump to "we’re being hacked." While Distributed Denial of Service (DDoS) attacks happen constantly, they rarely take down the entire internet. They usually target one specific company. If a major bank or a gaming network like PlayStation is down, a DDoS is a possibility. But a total "internet is down" scenario is almost always a boring technical error or physical damage.

Actionable steps for when the web goes dark

If the internet is down today and you’re stuck in the dark, here is how you actually handle it:

  • Switch to cellular data. If your home fiber is out, your phone’s 5G might still be humming. This helps you confirm if the outage is local to your ISP.
  • Check your ISP’s "Status" page. Most providers like Comcast (Xfinity), AT&T, or Spectrum have a map that shows local outages. You can usually access this via your phone's data.
  • Clear your DNS cache. On Windows, open Command Prompt and type ipconfig /flushdns. Sometimes your computer is just holding onto an old, broken "map" of the web.
  • Check the hardware. Look at your modem. If the "Online" or "Sync" light is blinking red or orange instead of solid green/white, the signal isn't reaching your house. That’s a hardware or line issue that only your ISP can fix.

The internet isn't a single thing. It’s a messy, overlapping collection of private networks. When it breaks, it’s usually because the complexity finally caught up with us. Most outages are resolved within two to four hours as engineers scramble to roll back updates or reroute traffic around a broken cable. Patience is usually the only real fix.