About Purple Shield, protective DNS from Purple
Protective DNS for any WiFi network and for every network you run on Purple Access: family-safe content filtering, a defence layer behind your firewall, and ad blocking that makes the network faster.
- 80,000+
- venues on the Purple platform
- 90
- countries
- 500m
- users
- 500m
- logins a year
- 99.999%
- uptime SLA
Who runs this site
Purple Shield is a Purple product and this is its product site, run by Purple, the cloud WiFi platform behind more than 80,000 venues and 500 million users in 90 countries. Shield runs standalone on any WiFi network and bolts onto Purple Access, which runs open, secure and xPSK networks on one platform; see the Purple Access site for the WiFi it protects. This site covers how protective DNS works, how to set it up, and how it sits behind the security you already run.
Why IT teams trust Shield
Purple has run WiFi in production since 2012, with content filtering, threat protection and analytics across schools, hotels, transport, retail and healthcare. The platform carries 500 million logins a year at a 99.999% uptime SLA, and holds ISO 27001, GDPR, CCPA and Cyber Essentials certification. Shield's filtering meets the Friendly WiFi standard and the bar set by the Internet Watch Foundation. Every claim published here carries a number, a named standard or a named customer behind it.
Editorial policy
Every guide is written for practitioners and reviewed for accuracy before it publishes. We explain where filtering happens and why that placement catches what other layers miss, and we compare Shield with DNSFilter, Cisco Umbrella and legacy filtering appliances head to head. When a reader reports an error, we correct it and note the change.
About Purple
Purple turns WiFi into a secure, seamless utility for physical venues, hardware-agnostic and running on the access points a customer already owns. Customers include McDonald's, Harrods, Premier Inn, Whitbread and AGS Airports. Learn more at purple.ai.
Decide what your WiFi reaches, free for 30 days
Tell us which networks you run and who is on them. We map a policy to each one: guests, staff, students, residents and paid tiers. Then point one network at Shield and see what it stops for 30 days, before you pay anything. Running change control? We plan a pilot on one SSID with your team instead. No hardware, no agents on devices.
- We map your networksA Purple expert maps your networks, your venues and the people on each, and answers your questions on bypass, outages, data handling and integrations.
- You get a policy for each oneGuests, staff, students, residents and paid tiers, each with the policy it needs.
- You prove it, then get your tailored quote30 days free on one network, or a pilot on one SSID planned with your team, then Shield priced standalone or as an add-on to your Access plan.
Your policy map
Tell us your networks. We map a policy to each one.
A Purple expert comes back with a policy for every SSID you run, from the team that has run content filtering on WiFi since 2012 and runs WiFi for 80,000+ venues in 90 countries.