Internet / ScoutRoo journal
Most people never change their DNS server — should you?
DNS is the system that turns a website address you type, like a name, into the numeric address your device actually needs to connect. Your provider assigns you a default DNS server automatically, and for most people it works fine without ever being touched. Switching to a public resolver like Cloudflare's 1.1.1.1 or Google's 8.8.8.8 can sometimes help with speed or privacy, and lets you add filtering — but it won't fix a slow internet plan or a weak Wi-Fi signal.
The essentials
- DNS works like a phone book: it translates website names into the numeric addresses computers use to find each other.
- Your provider assigns a default DNS server automatically, and public alternatives like Cloudflare (1.1.1.1) and Google (8.8.8.8) are free to use instead.
- Switching DNS can sometimes speed up the step of looking up a site and can enable privacy or content-filtering features, but it has no effect on your overall internet speed.
- You can change DNS on a single device or once for your whole home through your router's settings.
What DNS actually does
Every website and online service lives at a numeric address, similar to a street address, called an IP address. People don't memorize strings of numbers, so the Domain Name System (DNS) acts as the internet's phone book, matching the name you type or tap into the numeric address your device needs to actually connect.
This lookup happens every time you visit a new site, usually in a fraction of a second and without you noticing. A DNS server is simply the computer that holds or forwards that phone book and answers the lookup request.
Your provider's default vs public resolvers
When you connect to the internet, your provider automatically assigns a DNS server for you to use, and this is what the vast majority of people use without ever thinking about it. It works, but it isn't the only option.
Public DNS resolvers are free alternatives run by other companies. Cloudflare operates one at the address 1.1.1.1, which the company describes as built for speed and privacy (Cloudflare, checked October 2026). Google operates one at 8.8.8.8, its long-running public DNS service (Google, checked October 2026). Both are widely used, free, and simple to set up on a router or individual device.
Switching from your provider's default to one of these doesn't change who provides your internet connection or your plan's speed — it only changes which server answers the 'what address is this site at' question.
The real, modest benefits of switching
The clearest potential benefit is the speed of the lookup step itself. Some public resolvers are tuned to answer very quickly and have servers in many locations worldwide, which can shave a small amount of time off the moment just before a page starts loading. In practice, the difference is often too small to notice, since most providers' own DNS servers are also fast.
Privacy is another reason people switch. Some public DNS providers publish clear policies about not selling browsing data drawn from DNS queries, which may differ from what your provider's own policy allows — it's worth reading the specific privacy policy of whichever resolver you consider, since practices vary.
Content filtering is a practical, tangible benefit for some households. Certain public DNS services offer versions built to block known malicious sites or adult content at the network level, which can add a layer of filtering across every device on a home network without installing anything on each one individually.
- Faster lookups: a modest, sometimes unnoticeable speed benefit for the 'finding the address' step only.
- Privacy policy differences: compare the resolver's published policy to your provider's.
- Built-in filtering: some public DNS options offer family-safe or malware-blocking versions.
How to change your DNS server
You can change DNS in two general places: on an individual device, or once on your router so it applies to every device in your home.
On a single device, look in your network or Wi-Fi settings for an option labeled DNS, and enter the numeric addresses for the resolver you want to use instead of leaving it on automatic. This only affects that one device.
On your router, log into its settings page (often through a web browser at an address printed on the router itself) and look for a DNS or WAN settings section. Entering the new DNS addresses there applies the change to every device that connects to that router, which is the more convenient option for a whole household.
What changing DNS won't fix
DNS affects how quickly your device finds the address of a site, not how fast data moves once it's connected. It has no effect on your plan's download or upload speed, your Wi-Fi signal strength, video streaming quality, or gaming latency during actual gameplay.
If your internet feels slow overall, pages load slowly once they start, or streaming buffers, the cause is almost certainly your plan speed, your Wi-Fi coverage, or network congestion — not your DNS server. Changing DNS is a small, optional adjustment, not a general fix for a sluggish connection.
Good to know
Common questions
Is it safe to change my DNS server?
Yes, using a well-known public resolver like Cloudflare's or Google's is generally safe and easy to reverse by switching back to automatic settings.
Will changing DNS make my internet faster overall?
It can slightly speed up the moment a device looks up a website's address, but it won't change your plan's actual download or upload speed.
Do I need to change DNS on every device in my house?
No. Changing it once in your router's settings applies it to every device that connects through that router, which is simpler than doing each device individually.
Can DNS filtering replace parental control software?
It can block access to categories of sites at the network level, which is useful, but check the specific resolver's filtering service for what it covers, since it may not replace device-level parental controls for app or screen-time limits.
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