Short answer: Samsung Internet does not have a built-in setting that filters adult sites, so the block has to come from the phone or the network around it. Samsung's developer documentation says the browser does not provide content blocking filters and that separate apps are needed for that. The free options that cover Samsung Internet are a family-filter Private DNS hostname on the phone and, for a child, Samsung's and Google's family controls. Each can be undone by whoever set it, so the end of this guide covers how to add a lock.
Version note: Checked against Samsung and Google pages on 12 Oct 2026. Samsung says Family Link works on One UI 2.0 or later. Samsung Internet menus change between versions, and we could not confirm every label, so check yours.
Samsung's pages describe these protections, none of which block adult content:
A word of caution: some blogs describe a "Block sites" list or a "Safe browsing" toggle in Samsung Internet. We could not find either on a Samsung page, so we do not give steps for them.
Private DNS sends your phone's website lookups through a provider that refuses to resolve adult domains. Because it is a phone setting, it applies to apps and browsers that use the system DNS. We could not find a Samsung page that says whether Samsung Internet has its own separate DNS setting, so test after setting it up.
Samsung's support page gives the path:
Samsung's page does not list the options or hostnames. Two published ones are family.cloudflare-dns.com (Cloudflare) and family-filter-dns.cleanbrowsing.org (CleanBrowsing's Family Filter); CleanBrowsing's Android guide describes the same Samsung route.
Limits: apps or browsers with their own encrypted-DNS setting can bypass the system one, per CleanBrowsing. Some school, work or public networks block encrypted DNS. Filters are not perfect. And it is a settings field, so anyone holding the phone can set it back to Off or Automatic.
Google SafeSearch filters explicit results in Google Search, with Filter, Blur and Off options. Google says it does not affect other search engines or websites. Exact phone menu paths could not be confirmed, so see our SafeSearch guide: https://mamoriblocker.com/guides/how-to-turn-on-safesearch/
Samsung's support page for Family Link on Galaxy gives this path: Settings > Digital Wellbeing and parental controls > Parental controls > Let's do this, then sign in to the child's Google account. That page does not cover web filtering. Google's Family Link has a filter for Chrome only, and Google says other browsers may escape those settings. That matters here, because Samsung Internet is another browser. A parent can block an app in Family Link: select the child, tap Screen time > Time limits > App limits, select the app and switch Allowed to Blocked. Google notes that some apps cannot be blocked because the device needs them, and system apps cannot have app limits. We did not confirm on a Google page whether Samsung Internet can be blocked this way on every phone, so check the list in Family Link. The full steps are in our guide: https://mamoriblocker.com/guides/block-adult-content-kids-android-phone/
Every method above has the same shape: the person who set it is the person who can undo it, and the undo takes seconds. Urges are short and strong, and in that moment "just turn off Private DNS for a minute" feels reasonable. There is no shame in that, because settings menus are built for convenience and not for self-restraint. Two things help: more than one layer, and a delay or a second person between you and the off switch.
Does Samsung Internet have parental controls?
Samsung's pages we checked do not list a web filter inside the browser. Family controls sit in Settings (Digital Wellbeing and parental controls) and the Samsung account.
Do ad blockers block adult sites?
They are made for ads and clutter. We found nothing on Samsung's pages saying they filter adult sites.
Will Private DNS work in Samsung Internet?
It should if the browser uses the phone's DNS, but we could not confirm this on a Samsung page, so test it.
Can I just use Secret mode?
Secret mode only stops history and cookies being kept. It does not block or unblock sites.
Everything above works without any app. Mamori is one more layer, built for adults who want to block adult sites on their own phone, with the lock as the main feature.
Honest limits: Android allows only one VPN at a time, so another VPN or blocker that takes the slot can switch Mamori's filter off. No blocker replaces support from people you trust. For a child's phone, use Family Link as the base layer, since Mamori is built for adults blocking for themselves.
There is a 7-day free trial on the monthly and annual plans, plus a one-time lifetime option. No account, no tracking.
Last checked 12 Oct 2026. This guide is general information, not medical advice.