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OpenBLD
What it is
OpenBLD provides protective DNS intended to block malware, phishing, tracking, and unwanted domains. It supports classic DNS, DNS-over-HTTPS, and DNS-over-TLS. OpenBLD Free can be configured on phones, browsers, desktops, and routers without installing an agent or other software. Its ADA profile adapts filtering for most users; the stricter RIC profile may affect some services. The free plan is presented for personal use, home networks, and small offices, and is billed Free forever. It allows about 100,000 DNS queries per day and limits use to 100 requests per second per IP. OpenBLD Plus is aimed at companies, security teams, and managed service providers. It offers organization-specific policies, centralized analytics, security events, and corporate DNS integrations, with Managed Cloud, Dedicated DNS, or On-Premise deployment. On-Premise keeps DNS traffic, events, and analytics within customer infrastructure. The service says logs may be enabled for troubleshooting, are not shared with third parties or used for advertising, and are anonymized whenever possible. OpenBLD states that it does not cover YouTube and that its DNS has no Service Level Agreement.
For and against
For
- Supports classic DNS, DoH, and DoT
- Free setup requires no agent installation
- Can be configured on phones, browsers, desktops, and routers
- Plus offers organization-specific policies and analytics
- On-Premise keeps DNS data within customer infrastructure
Against
- Public DNS is limited to 100 requests per second per IP
- Some virtual server or cloud requests may be blocked
- Does not cover YouTube
- OpenBLD DNS has no Service Level Agreement
The verdict
OpenBLD offers a free protective DNS option and organizational deployments with additional controls. Consider the public-use limits, YouTube coverage exception, and differing ADA and RIC filtering behavior before choosing it.
Who it suits
OpenBLD Free is aimed at personal use, home networks, and small offices. OpenBLD Plus is designed for companies, security teams, and managed service providers that need organizational policies or deployment controls.
Plans and prices
OpenBLD Free
~100k DNS queries/day · private, home-network and small-office use · no registration
Read 15 Oct 2026 · openbld.net
OpenBLD Plus
Personal or enterprise support · no limits on redundant requests · incident analysis
Read 15 Oct 2026 · openbld.net
OpenBLD Plus enterprise deployments
Custom policies · analytics · integrations · professional support
Read 15 Oct 2026 · openbld.net
On the record
- ADA behavior
- ADA is designed for everyday browsing and allows common Google, Microsoft, Yandex and social-media services.openbld.net · read 15 Oct 2026
- Audience
- OpenBLD Free is presented for personal use, home networks, and small offices; Plus is designed for companies, security teams, and MSP or MSSP providers.openbld.net · read 8 Oct 2026
- Browser extension
- OpenBLD lists an extension for Chrome, Edge, Brave, Vivaldi and Opera, and setup of DNS is required before using it.openbld.net · read 15 Oct 2026
- Chrome extension details
- The Chrome listing shows version 1.1, a 92.02 KiB size and an update date of January 29, 2024.chromewebstore.google.com · read 15 Oct 2026
- Company size
- LinkedIn lists OpenBLD.net as a nonprofit with one employee and headquarters in Almaty, Kazakhstan.kz.linkedin.com · read 15 Oct 2026
- Corporate integrations
- Documented Plus deployment scenarios include Active Directory DNS, internal zones, upstream resolvers, split DNS, VPN users and dnsdist infrastructure.openbld.net · read 15 Oct 2026
- Coverage exception
- OpenBLD states that it does not cover YouTube.openbld.net · read 8 Oct 2026
- Coverage limitation
- The documentation explicitly says OpenBLD does not cover YouTube resources.openbld.net · read 15 Oct 2026
- Data handling
- The service says logs may be enabled for troubleshooting, are not transferred to third parties or used for advertising, and are anonymized where possible.openbld.net · read 15 Oct 2026
- Deployment and data control
- Plus is available as Managed Cloud, Dedicated DNS, or On-Premise; On-Premise lets DNS traffic, events, and analytics remain within customer infrastructure.openbld.net · read 8 Oct 2026
- Deployment choices
- OpenBLD Plus is offered as managed cloud, on-premise or dedicated DNS deployment.openbld.net · read 15 Oct 2026
- Desktop and router use
- OpenBLD can be configured in browsers, operating systems, home or office routers and mobile devices without an agent.openbld.net · read 15 Oct 2026
- Documentation and support
- Documentation covers introduction, setup categories, operating modes, Plus deployments, contacts and a dated technical blog; support is offered through Telegram and email.openbld.net · read 15 Oct 2026
- Filtering modes
- The service offers Adaptive ADA, stricter RIC and OpenBLD Plus modes.openbld.net · read 15 Oct 2026
- Founded year
- The official chronology says the public OpenBLD.net DNS service launched in 2019 after beginning as Open BLD Sys-Admin DNS Service.openbld.net · read 15 Oct 2026
- Independent domain fact
- IPAddress.com records the openbld.net domain registration date as May 2, 2023 and identifies GitHub.com as the server header.ipaddress.com · read 15 Oct 2026
- Independent infrastructure description
- IPAddress.com describes OpenBLD as a free Anycast and GeoDNS DNS service focused on blocking ads, tracking, telemetry and malicious domains.ipaddress.com · read 15 Oct 2026
- Integrations
- Plus integration options may include Active Directory DNS, ClickHouse, VictoriaLogs, Grafana, Prometheus-compatible monitoring, syslog, and SIEM systems.openbld.net · read 8 Oct 2026
