Here are answers to the most common questions people ask when a website won’t load, shows an error, or behaves strangely.
Need to check if a website is actually down? Use our uptime checker.
It could be caused by server issues, DNS problems, browser cache, network blocks, or outages. Try switching to mobile data or using our uptime checker to see if the site is down globally.
Use IsThisSiteDown.org to test global uptime. If multiple regions fail, the site is likely down.
Slow loading is usually caused by server overload, large images, heavy scripts, poor hosting, or network congestion.
Mobile networks use different DNS and routing paths. If a site loads on mobile but not Wi‑Fi, your home network may be blocking or misrouting it.
DNS errors happen when your device can’t find the website’s IP address. Switching to Cloudflare (1.1.1.1) or Google DNS (8.8.8.8) often fixes it.
A 404 means the page doesn’t exist — but the website itself is usually online.
A 500 error means the server encountered a problem it couldn’t handle. It’s usually temporary.
Session timeouts, cookie issues, VPN conflicts, or server resets can cause unexpected logouts.
A DDoS attack floods a website with fake traffic, making it slow or unreachable.
This error means your connection was interrupted. Restart your router, disable VPNs, or clear your browser cache.
Switch DNS providers, restart your router, or flush your DNS cache.
Try mobile data or a VPN. If the site loads elsewhere, your ISP may be blocking or misrouting it.
Visit the Help Center for all uptime, DNS, network, and error troubleshooting articles.