META_DESCRIPTION: Websites not loading? Find out why you can't access certain sites and follow step-by-step fixes for DNS, browser, network, and firewall problems on any device. For a related guide, see Two-Factor Authentication Stopped Working on a New Phone? How to Recover Access.
You type a URL and get an error, a blank page, or a spinner that never ends. The site might be down, or something on your end could be blocking it. This article covers the most common reasons you cannot reach specific websites and the practical steps to fix them on Windows, Mac, iPhone, Android, or any browser.
Quick checks before you troubleshoot
Before changing settings, rule out the obvious:
- Is the site down for everyone? Visit a status-checking service or ask a friend on a different network.
- Can you reach other websites? If yes, the problem is likely specific to that domain or your DNS.
- Does it fail on mobile data but work on Wi-Fi, or vice versa? That points to a network or firewall issue.
- Did the site work yesterday? Sudden failures often mean a temporary outage or a changed local setting.
Common causes
Most access problems fall into a few categories:
- DNS failure. Your computer cannot translate the website name to an IP address. This often affects one site while others load normally.
- Browser data corruption. Old cached files or cookies conflict with the current site, causing errors or infinite loading.
- Firewall or antivirus. Security software blocks the connection mistakenly, especially for newer or unusual domains.
- VPN or proxy conflicts. Routing through a server changes how the site sees you, and some sites block known VPN IP ranges.
- Local redirect. A hosts file or network policy sends the request somewhere else, or malware alters system settings.
- Network restrictions. Work, school, or public Wi-Fi filters certain domains by category or keyword.
- Regional blocking. The site limits access to specific countries due to licensing or legal requirements.
Step-by-step fixes
1. Verify the site is actually up
Use a down-detector service or try the site from a phone on cellular data. If it is offline everywhere, you can only wait. Check the site's official social accounts for outage announcements.
2. Try another browser or device
If Chrome fails but Safari works, the issue is browser-specific. Clear that browser's cache and cookies, or test in an incognito or private window to rule out extensions. On phones, try switching from Wi-Fi to cellular to see if the network is filtering the domain.
3. Flush your DNS cache
Stale DNS records can prevent your computer from finding the site. The command varies by operating system. On Windows, open Command Prompt and enter the flush command; on macOS and Linux, the process differs. If you are unsure, restarting your router often refreshes DNS automatically for all devices on your network.
4. Temporarily disable VPN or proxy
A misconfigured VPN can block access to specific sites. Turn it off briefly and try the site again. If it loads, re-enable the VPN and try a different server location. Check your browser and system proxy settings to ensure they match your network needs.
5. Check firewall and antivirus
Security suites sometimes overblock. Temporarily disable the web shield or firewall to test—only do this briefly and re-enable it immediately after. If the site then loads, add the site to the antivirus exception list rather than leaving protection off. Be cautious with public Wi-Fi; disabling firewall protections on untrusted networks increases risk.
6. Change your DNS servers
If your ISP's DNS is failing, switching to a public resolver can help. Common options include Cloudflare and Google DNS. This is done in your network or Wi-Fi settings and affects all devices on that connection. It is safe to try and reversible.
7. Check the hosts file (advanced)
On some systems, a manual hosts file entry can redirect a domain. This is rare for ordinary users, but if you recently edited system files, verify the entry is not blocking the site. Editing this file requires administrator privileges and should be done carefully.
Additional troubleshooting
If the site loads on other devices but not yours:
- Restart your computer and router to clear temporary network states.
- Try a different web browser to isolate software conflicts.
- Temporarily switch to mobile data to bypass local network restrictions.
- Check whether the site requires a specific region, login, or subscription.
- Review browser extensions that inject content or block scripts.
On mobile, check whether your carrier or data plan blocks certain categories of sites. Some mobile networks filter adult or gambling content by default.
When to seek further help
Contact your ISP if multiple sites fail across all devices and networks. Contact the website owner if only their domain is affected and status pages confirm it is up. If you suspect malware or a persistent redirect, run a full security scan before entering passwords on the site. For work or school networks, reach out to IT support—policy blocks often require their assistance to lift.
Final guidance
Start with the simplest checks—site status, another browser, and a restart—before changing DNS or editing system files. Most access problems resolve within a few minutes once you identify whether the block is local, network-wide, or on the site's end. If you are unsure about any step, ask someone with technical experience before making system-level changes.