Independent DNS filter testing
Does your family DNS actually block anything?
Most parental-control DNS providers advertise a blocklist and leave it at that. This tool queries real adult-content, gambling and malware domains through the resolver of your choice and shows you, domain by domain, what got through.
50 free tests per day · No account required · Results in seconds
What the test actually measures
Three independent checks, reported separately so a good score in one can't hide a failure in another.
Content blocking
Query real adult-content, gambling and malware domains through any resolver and see exactly which ones come back blocked, allowed, or NXDOMAIN.
Safe search enforcement
Check whether a resolver actually rewrites Google, YouTube, Bing, DuckDuckGo, Yandex and Brave to their forced-safe-search endpoints — the step most providers quietly skip.
Side-by-side scoring
Compare several resolvers in one run and get per-category blocking rates, so you can see where a provider is strong and where it has gaps.
Ten providers preloaded
Or paste any resolver IP — including your router, your ISP, or a self-hosted Pi-hole — and test that instead.
Cloudflare for Families
1.1.1.3
Malware + adult content
OpenDNS FamilyShield
208.67.222.123
Preset category blocking
CleanBrowsing Family
185.228.168.168
Adult content + safe search
AdGuard Family
94.140.14.15
Ads, trackers + adult content
How it works
Pick resolvers and categories
Choose from ten preset providers or paste any resolver IP, then select which domain categories to test.
We resolve from our servers
Each domain is queried through each resolver and classified by the answer it returns — sinkhole IP, NXDOMAIN, or a genuine address.
Read the breakdown
Get a per-provider blocking rate, a safe-search verdict per search engine, and the raw DNS answer behind every result.
Why bother testing at all?
Because “family DNS” is a marketing category, not a standard. Two providers with near-identical claims can differ by 25 percentage points on the same domain list, and a resolver that blocks adult sites well may not enforce safe search at all — which means search results stay wide open.
A filter you never verified is a filter you're only assuming works.
- Confirm filtering is actually active on your network
- Spot safe-search gaps that let searches through
- Compare providers before you commit
- Detect DNS hijacking or a misconfigured router
- Verify a provider still works after a change
- Re-check periodically as blocklists drift