What is a dns server and what does it do​

What is a DNS Server?

Hey there! If you're looking for a good DNS server to speed up your internet, improve security, or just avoid annoying restrictions, you're in the right place. In this blog, I’ll explain everything in simple English so that anyone—whether you're a tech expert or a beginner—can understand.

DNS (Domain Name System) is like the phonebook of the internet. When you type a website name (like google.com), your device doesn’t understand words—it needs an IP address (like *172.217.166.110*). A DNS server translates the website name into an IP address so you can load the site.

Your internet service provider (ISP) gives you a default DNS, but it’s not always the best. A good DNS server can make your internet:

✔ Faster – Load websites quicker

✔ More Secure – Block malware & phishing sites

✔ More Private – Stop your ISP from tracking you

✔ Bypass Restrictions – Access blocked websites

Best Free & Public DNS Servers in 2024

Here are some of the fastest and most reliable DNS servers you can use for free:

1. Google Public DNS

1. Primary DNS: 8.8.8.8
2. Secondary DNS: 8.8.4.4

✅ Pros: Super fast, reliable, good for browsing

❌ Cons: Google logs some data (not fully private)

2. Cloudflare DNS

1. Primary DNS: 1.1.1.1
2. Secondary DNS: 1.0.0.1

✅ Pros: Very fast, privacy-focused, blocks malware

❌ Cons: Some ISPs may throttle speed

3. OpenDNS

1. Primary DNS: 208.67.222.222
2. Secondary DNS: 208.67.220.220

✅ Pros: Strong security, parental controls

❌ Cons: Slightly slower than Google & Cloudflare

4. Quad9 (Best for Security)

1. Primary DNS: 9.9.9.9
2. Secondary DNS: 149.112.112.112

✅ Pros: Blocks malicious sites, good privacy

❌ Cons: Not the fastest for gaming

How to Change Your DNS Server?

Changing DNS is super easy and works on Windows, Mac, Android, iPhone, and even your router.

On Windows 10/11:

1. Press Win + R, type ncpa.cpl, and hit Enter.
2. Right-click your Wi-Fi/Ethernet → Properties.
3. Select IPv4 → Use the following DNS.
4. Enter your preferred DNS (like 1.1.1.1 & 1.0.0.1).
5. Click OK and restart your browser.

On Android:

1. Go to Settings → Wi-Fi.
2. Long-press your network → Modify Network.
3. Change IP settings to Static.
4. Enter DNS (like 8.8.8.8 & 8.8.4.4).
5. Save & reconnect.

On iPhone:

1. Go to Settings → Wi-Fi.
2. Tap the (i) icon next to your network.
3. Scroll to DNS → Configure DNS → Manual.
4. Add servers (like 1.1.1.1).
5. Save & restart Wi-Fi.

On Router (For All Devices at Home)

1. Open router settings (usually 192.168.1.1).
2. Find DNS settings under WAN/LAN.
3. Replace ISP DNS with your choice (like Cloudflare).
4. Save & reboot the router.

Why Should You Change Your DNS?

1. Faster Internet Speeds

Some DNS servers respond faster than your ISP’s default one. For example, Cloudflare (1.1.1.1) is known for ultra-low latency.

2. Better Privacy

Your ISP logs every site you visit if you use their DNS. Switching to Cloudflare or Quad9 reduces tracking.

3. Block Malware & Ads

DNS like Quad9 & AdGuard automatically block harmful websites and annoying ads.

4. Access Blocked Websites

Some DNS servers (like Google DNS) can bypass government or ISP-level blocks.

Which DNS is Best for You?

1. For Speed → Cloudflare (1.1.1.1)
2. For Privacy → Quad9 (9.9.9.9)
3. For Security → OpenDNS
4. For Ad Blocking → AdGuard DNS

Final Thoughts

A good DNS server can make a big difference in your internet experience. If you want speed, go with Cloudflare. If you care about privacy, try Quad9. And if you hate ads, AdGuard DNS is a great pick.

Changing DNS is free, easy, and takes less than 2 minutes. So why not give it a try? Let me know in the comments which DNS you’re using!

🚀 Pro Tip: Test your DNS speed with tools like DNS Benchmark or Namebench to find the fastest one for your location.

Hope this helps! Happy browsing!