Web filtering for schools, co-ops and libraries
The filter students can't get around.
Games, "unblocked games" mirrors, proxies, VPNs, social media and adult sites, stopped on your school network and on every managed Chromebook. We learn new workarounds every hour, so your IT team doesn't have to.
- Nothing to install on student devices
- Works with Google Admin
- Live in an afternoon
Every trick students trade at lunch.
Most filters block a list of famous sites. Students just find the next mirror. Sheepdog Filter goes after the workarounds themselves.
Games, including "unblocked games"
33,000+ game sites, browser .io games, and the copycat mirror sites students pass around. New mirrors are spotted from real traffic and blocked within the hour.
Proxies and VPNs
Web proxies, VPN apps and "free VPN" sites, matched by name even when misspelled, plus the encrypted-DNS tricks apps use to sneak past a filter.
Social media
TikTok, Instagram, Snapchat, Discord and the rest, blocked for students. Switch any of them back on in one tap.
AI companion apps
Character.AI, Replika and dozens of "AI girlfriend" apps. Homework helpers and ChatGPT are your call, one switch each.
Adult content and gambling
Pornography, casinos and sports betting, always on.
SafeSearch and YouTube Restricted Mode
Forced on Google, Bing and YouTube, so explicit results never show up in a search.
Set up in an afternoon. No servers, no certificates.
Sheepdog Filter works at the internet's "phone book" (DNS), so blocked sites simply never load. Nothing to install on student devices, and nothing to break your learning apps.
Create your school's account
Strict student rules are on from the first minute, with a separate light setting for staff devices.
Point your network at us
Paste one address into your router's or firewall's DNS setting. Every device on campus Wi‑Fi is filtered, including students' own phones.
Push it to every Chromebook
Paste your secure DNS address into Google Admin. Managed Chromebooks stay filtered at school, at home and on a hotspot.
Strict for students. Out of the way for staff.
Everything a school needs, without the weight of an enterprise suite.
- Separate rules for students and staff devices
- Every managed Chromebook filtered on any Wi‑Fi, through Google Admin
- Allow a site for a class in one tap: every lesson tool keeps working
- Schedules, like social media only at lunch, or games off all day
- Reports in plain English: what was blocked, and who keeps trying
- Alerts the same hour someone tries a VPN or proxy
- More than one campus under one account
- A printable CIPA filtering report for your E-Rate files
Built to keep you compliant, every day of the year.
CIPA asks E-Rate schools to filter obscene and harmful content on every computer students use, and to monitor it. Sheepdog Filter does that part, and keeps the record.
Locked on for students
Adult and obscene content can't be switched off for students, and student filtering can't be paused, so your protection measure never quietly lapses. Staff get a separate profile, as CIPA allows.
A dated CIPA filtering report
One click prints how every network and Chromebook group is filtered, with the last 30 days of blocks and a sign-off line. File it with your Form 486 records each funding year.
Monitoring, as CIPA asks
See what students looked up and what was blocked, and get an alert the same hour someone tries a VPN or proxy.
Internet safety policy template
A plain-English policy covering every element CIPA requires, ready for your board's public meeting. Get the template.
Co-ops, microschools and libraries too.
Same filter, same simple setup. Pick what you are when you sign up and we set the right rules.
Homeschool co-ops and microschools
School-strength rules with family-level effort: games, social media, VPNs and adult sites blocked on the Wi‑Fi where you meet, and a free link for every family's home. Co-op guide
Public libraries
Adult content locked on for public Wi‑Fi and computers, as CIPA asks, with games and social media left open for patrons. Allow a site for an adult's research in one tap, and print the CIPA report for your E-Rate files. Library guide
Private and faith-based schools
No district IT department needed. If someone can log in to your router, you can be live this afternoon.
Filtering, not surveillance.
No reading screens
We never see messages, documents, passwords or screens. We only answer "which address is this site at", and refuse the harmful ones.
No certificates
No intercepting encrypted traffic, nothing installed on devices, nothing that breaks Google Classroom or testing apps.
You keep control
Choose how long activity is kept, from 24 hours to two years. Delete everything any time.
Fast and reliable
Runs on Cloudflare's global network, with lookups in a few milliseconds.
Protect students at home too.
Your school gets its own link and QR code for newsletters and parent emails. Parents set up the same protection for their home Wi‑Fi and their kids' phones in five minutes, free.
- Parents see that your school recommended it
- You see how many families joined, never what they do
- A printable "This Wi‑Fi is filtered" sign for your front office
Recommended by Oak Hill Academy
Protect your family's internet, free.
- 1Create a free account
- 2Add your kids and their devices
- 3Games, adult sites and VPN tricks blocked at home too
Questions school IT asks.
Something else? Email hello@sheepdogfilter.com and a real person will answer.
How do students get around most filters, and how do you stop it?
Mostly with "unblocked games" mirror sites, web proxies and VPN apps. We block known ones from community lists, match VPN and proxy names even when misspelled, and check new sites seen on our network every hour, blocking the ones that turn out to be game or proxy mirrors. See how we block unblocked games.
Does it work on school Chromebooks off campus?
Yes. In the Google Admin console you set Chrome's DNS-over-HTTPS to your school's Sheepdog Filter address, and managed Chromebooks are filtered on any Wi‑Fi. Our Google Admin guide walks through it.
Will it break Google Classroom, testing apps or our learning tools?
No. We don't intercept encrypted traffic or install certificates, so apps work normally. If a site you need is ever caught by a category, allow it in one tap.
Can staff devices skip the student rules?
Yes. Staff devices get scam and malware protection only.
Does it help with CIPA?
Yes. CIPA asks E-Rate schools to filter obscene content, child sexual abuse material and content harmful to minors, and to monitor minors' use. Sheepdog Filter blocks those categories, locks them on for students, and prints a dated CIPA filtering report for your records. Your school still adopts its own Internet safety policy and certifies on Form 486; our policy template helps.
We're a homeschool co-op or a library. Is this for us?
Yes. Choose "Co-op or microschool" or "Library" when you sign up. Co-ops get the strict student rules. Libraries get adult content locked on with games and social media left open, plus the CIPA report.
What about students' privacy?
We only see which sites devices look up, never what's on the page. You choose how long that list is kept, and you can delete it any time.
What does it cost?
It's free to start, with every feature included. Email us for school pricing for larger campuses.