About Seawall
We make the internet quieter
Seawall is a DNS ad blocker and private DNS provider. It stops ads, trackers and scam sites before they reach your phone, computer, TV or router, and there’s no app to install.
Who Seawall is for
One service, three ways to use it.

For you
Ads, trackers and phishing blocked on all your devices. Allow any site whenever you need it, or pause protection in one tap.
Plans and pricing
For families
A profile for each child with age presets, schedules and safe search. A family-safe DNS with nothing on the phone for your child to uninstall.
Parental controls
For offices
One setting on the office router covers every device, and laptops keep the office rules outside the office. Weekly reports for each office.
Seawall for business
What is DNS filtering?
Before a device opens a site, it asks a DNS server for the site’s address. That happens for every page, image and ad. Seawall is a DNS server with a filter.
Your device asks
Your phone needs news.example and, inside the page, ads.example. It asks Seawall for both addresses.
Seawall checks the lists
Each name is checked against lists of ads, trackers, malware and scams, and against your own rules.
Only wanted sites load
news.example gets its address and opens. ads.example gets none, so the ad never loads, in the browser or in apps.
On your router, Seawall works as a network-wide ad blocker: every device on the Wi-Fi is covered, including the TV and the game console.
Check your connection with the ad blocker testSee it in action on the home page
What we stand for
The rules we follow when we build Seawall.
Privacy-focused DNS
The query log is off by default, and only you can turn it on. We don’t sell data and we don’t show ads.
Data stays in the EU
Your account, and your query log if you turn it on, are stored in the EU, in Germany. We follow the GDPR.
No app needed
Seawall uses settings your devices already have: Private DNS, a profile, DNS over HTTPS or your router.
You’re in charge
Allow a site, pause protection or change a rule at any time. Even a lock you set yourself, like No gambling, is yours to remove.
Encrypted lookups
DNS over HTTPS, DNS over TLS and DNS over QUIC, so your network can’t read or change your lookups.
Clear pricing
7 days free with no card, cancel anytime, and a 30-day money-back guarantee on yearly plans.

What is a seawall?
A seawall is a wall built along the shore to protect the land from waves. Storms break against it, and the water behind it stays calm.
That’s the idea behind Seawall: the noise of ads, trackers and scam pages stops at the wall, and your devices stay quiet behind it. Our logo shows the same thing: a wave that settles into a calm line.
Who makes Seawall
Seawall is made by SnaiDerz, LLC, a company registered in Delaware, USA. One or two sentences about the team, in your words.
- Company detailsLegal name, address and registration
- Press and partnersInterviews, comments and partnerships
- SupportHelp with setup, blocked sites and billing
текст о команде — словами папы, как на главной; фото команды не ставим, люди только стилизованные