Troubleshooting
Test a blocked site
Find out where the block is. These checks only look; nothing on your device changes.
Mac
- Try the site on another connection, like your phone’s hotspot.
- Ask your network for the site’s address.
dig +short example.com - Ask a public resolver (Cloudflare) for the same thing.
dig +short example.com @1.1.1.1 - See what comes back when you connect.
curl -sI https://example.com - Check this Mac’s hosts file. Any line here overrides DNS.
grep -i example.com /etc/hosts - Check System Settings → Screen Time → Content & Privacy. If it’s on, it can filter websites.
Windows
- Try the site on another connection, like your phone’s hotspot.
- Ask your network for the site’s address.
Resolve-DnsName example.com - Ask a public resolver (Cloudflare) for the same thing.
Resolve-DnsName example.com -Server 1.1.1.1 - See what comes back when you connect.
curl.exe -sI https://example.com - Check this PC’s hosts file. Any line here overrides DNS.
Select-String -SimpleMatch -Pattern 'example.com' -Path $env:windir\System32\drivers\etc\hosts - Signed in with a child account? Microsoft Family Safety can filter sites in Edge.
Linux
- Try the site on another connection, like your phone’s hotspot.
- Ask your system resolver for the site’s address.
getent hosts example.com - Ask a public resolver (Cloudflare). Needs dig (dnsutils or bind-utils).
dig +short example.com @1.1.1.1 - See what comes back when you connect.
curl -sI https://example.com - Check the hosts file. Any line here overrides DNS.
grep -i example.com /etc/hosts
iPhone & iPad
- Open Control Centre, turn off Wi-Fi and try the site on mobile data. Then try the other way round.
- Settings → Screen Time → Content & Privacy Restrictions → App Store, Media, Web & Games → Web Content. Unrestricted means the device isn’t filtering.
- Settings → General → VPN & Device Management. A VPN or profile from a filtering or security app can block sites.
- Safari says this network isn’t compatible with Private Relay? That network is filtering traffic.
Android
- Swipe down, turn off Wi-Fi and try the site on mobile data. Then try the other way round.
- Settings → Network & internet → Private DNS (Samsung: Connections → More connection settings). A hostname with family or filter in it is a filter.
- Settings → Network & internet → VPN. A VPN or security app can block sites.
- Settings → Google → Parental controls. If the phone is supervised with Family Link, its filters apply.
What the results mean
- Works on mobile data, not on Wi-Fi
- It’s your home network. Check your router, then your broadband provider.
- Works on Wi-Fi, not on mobile data
- It’s your mobile network’s filter. Find your carrier under Mobile.
- Your network returns nothing, 0.0.0.0 or 127.0.0.1
- But 1.1.1.1 returns an address? Your network’s DNS is blocking the site. Different addresses on their own are normal for big sites.
- The connection redirects to your provider, or shows a certificate error
- Something on the network is stepping in. That’s usually a provider filter or a court-ordered block.
- It fails everywhere
- Check the device settings above. If they’re clear, the site may be down.