- Does ERR_NAME_NOT_RESOLVED mean my computer has a virus?
- No. This is a DNS lookup failure — Chrome could not translate a domain name into an IP address. It is not a symptom of malware or a security breach.
- Why does this happen on some sites but not others?
- If only one site fails, that domain's own DNS records may be misconfigured or the domain may no longer exist. If every site fails, your local DNS server or network is the more likely cause.
- Will flushing my DNS cache delete anything important?
- No. Running ipconfig /flushdns only clears temporary DNS lookup records. It does not affect your files, passwords, browser history, or settings.
- Is switching to Google or Cloudflare DNS safe?
- Yes, both are widely used public DNS services. Switching only changes which server resolves domain names for you — it does not expose your device to additional risk.
- Why does the site load on mobile data but not on Wi-Fi?
- This confirms the problem is with your Wi-Fi network's DNS configuration, not the website. Restarting your router or changing its DNS settings usually resolves it.