Pi-hole review
Free, open-source network blocking for self-hosted administrators.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Pi-hole is free, open-source DNS filtering software for administrators who want to block unwanted domains across a network. It runs on supported Linux distributions, Raspberry Pi OS and Docker, with a web interface, command-line administration and an API. Network-wide blocking covers ads and content, while allowlists, denylists, regular-expression rules and subscribed domain lists give administrators control over filtering behavior. It can also provide DHCP services and pair with a VPN for filtering on cellular devices.
The product’s main strength is the depth of its self-hosted controls. Administrators can organize domains, lists and clients into groups, review DNS query logs, and store long-term statistics in a database. Privacy levels can hide domains, clients or query details in reporting. The web dashboard brings administration and network statistics together, while the interactive API supports statistics and integrations. Docker, VPN use and router DHCP configuration broaden its fit across different network setups, though deployment and ongoing administration remain the buyer’s responsibility.
Pi-hole suits technically capable users who want free network-wide blocking without a conventional paid SaaS plan or device limit. It is a focused DNS filtering tool rather than a broad family safety suite: buyers seeking SafeSearch enforcement or time-based schedules should choose a product built around those controls instead. For self-hosted administrators, its combination of custom filtering, group-based policies, DHCP, privacy settings and reporting offers substantial control. For users who prefer managed setup, hosted administration or a wider set of time and search restrictions, Pi-hole is less suitable.
Pi-hole pros and cons
- Where it wins
- Blocks ads and unwanted domains across an entire network
- Supports custom lists, regex rules, groups and privacy controls
- Includes DNS logs, long-term statistics, DHCP and an API
- Where it doesn't
- Requires self-hosted administration on supported Linux or Docker
- Does not provide broader SafeSearch enforcement
- Lacks time-based filtering schedules
Pi-hole fact sheet, pricing and score →
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