Yes, Google DNS is generally considered safe to use. It is designed with security in mind and offers several features that enhance your online safety.
Understanding Google Public DNS
Google Public DNS is a free Domain Name System (DNS) service provided by Google. It translates domain names (like example.com) into IP addresses that computers use to connect to websites.
Security Features
- DNSSEC Validation: As the provided reference states, "Google Public DNS is a validating, security-aware resolver." This means it actively checks for DNSSEC (DNS Security Extensions) signatures. DNSSEC is a security protocol that helps to ensure that the DNS responses are authentic and haven't been tampered with. It validates responses from DNSSEC signed zones unless the client explicitly requests to disable validation with the CD flag. This helps prevent DNS spoofing attacks where malicious actors redirect users to fake websites.
- Malware and Phishing Protection: While not directly a security feature of DNS itself, Google has systems in place to identify and prevent malicious domain names. Google DNS can help block access to known malicious websites, which reduces the risk of malware and phishing.
- Speed and Reliability: Google's infrastructure is robust and global, offering fast and reliable DNS resolution, which is indirectly related to safety, as slower DNS can sometimes make you vulnerable.
How DNS Works
Here is a brief summary of how DNS works in relation to Google Public DNS:
- Request: When you type a website address into your browser, your computer sends a DNS request to the DNS server specified in your network settings, like Google DNS (8.8.8.8 or 8.8.4.4).
- Resolution: The DNS server looks up the IP address associated with the domain name in its records.
- Response: The DNS server sends the IP address back to your computer.
- Connection: Your computer uses the IP address to connect to the website.
Why Choose Google DNS?
- Security: As noted above, Google DNS includes DNSSEC validation and helps to block known malicious sites.
- Speed: Google's infrastructure offers faster DNS resolution compared to many default ISP DNS servers.
- Reliability: Google's global servers ensure reliable service with minimal downtime.
Things to Keep in Mind
- Privacy: While Google DNS is generally considered safe, using Google services does involve trusting Google with your DNS queries, which are a record of the websites you visit. You may need to review Google's privacy policy and decide if you are comfortable with that.
- Control: Using Google DNS means you're delegating control of your DNS resolution to a third party. While convenient, some users prefer to manage their own DNS.
Conclusion
Google Public DNS is a secure, reliable, and fast DNS service that can enhance your browsing experience. Its support for DNSSEC validation and blocking known malware and phishing sites contribute to a safer online environment.
