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ExternalDNS

Free#12 of 25 in DNS Management Software

ExternalDNS: A focused, open-source controller for automating DNS records from Kubernetes resources. Ranked #12 of 25 in DNS Management Software by our editors (7.7/10); pricing: Free plan; best for kubernetes teams automating DNS records.

7.7/10Editor score

Visit ExternalDNS

ExternalDNS7.7 Visit ExternalDNS

At a glance

Editor score
7.7 / 10
Pricing
Free plan
Best for
Kubernetes teams automating DNS records
Free plan
Yes
Paid from
Free
Facts checked
20 Sep 2026

Where it wins
- Open-source and free to run in self-hosted Linux environments
- Supports AWS Route 53, Cloudflare, Google Cloud DNS, and other providers
- Includes filtering, dry runs, ownership registries, webhooks, and metrics
Where it doesn't
- Requires Kubernetes and self-hosted operation
- DNS provider charges are separate
- Does not provide RBAC or audit logs

Our verdict on ExternalDNS

ExternalDNS is an open-source Kubernetes controller for creating and updating DNS records from Services, Ingresses, Gateway API routes, and custom resources. It is designed for Kubernetes teams that want DNS changes to follow application resources rather than managing records separately. ExternalDNS is not a DNS server or a hosted DNS management service; it connects Kubernetes to supported DNS providers and applies configured record-management policies.

The integration scope is a central strength. Provider adapters support AWS Route 53, AWS Cloud Map, Azure DNS, Cloudflare, CoreDNS, DNSimple, Google Cloud DNS, GoDaddy, Linode DNS, NS1, Oracle Cloud Infrastructure DNS, OVHcloud, PowerDNS, Pi-hole, and RFC2136. Teams can discover records from Kubernetes resources and custom resources, restrict management to selected domains, and use create-only, upsert-only, or sync policies. Additional provider integrations can connect through an HTTP webhook interface, while Prometheus metrics are exposed through a metrics endpoint.

Operational controls make ExternalDNS useful where record ownership and change visibility matter. Dry-run mode lets teams preview DNS changes, and TXT, CRD, DynamoDB, and other registries can track ownership. The free, open-source model avoids a product subscription, although connected DNS providers may charge separately. Its scope is specialized: teams looking for a hosted DNS console, general-purpose DNS administration, RBAC, or audit logs should choose another tool. ExternalDNS is the stronger fit for Kubernetes-centric automation, while organizations needing broader administrative governance should look elsewhere.

Your product? Our editors can test ExternalDNS in depth and publish a review, labelled as paid · from $149/mo →

ExternalDNS pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on kubernetes-sigs.github.io

ExternalDNS fact sheet

Free plan	Yes
Paid from	Free
Authoritative zones	Not verified
Records per zone	Not verified
DNSSEC management	Not verified
DNS management API	Yes
Role-based access	No
Audit logs	No
Traffic steering	Not verified
Deployment	Self-hosted
Platforms	Linux
Support	Community, Docs
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Integrations	16 integrations: AWS Route 53, AWS Cloud Map, Azure DNS, Cloudflare, CoreDNS, DNSimple … See all →
Pricing	Free plan
Website	kubernetes-sigs.github.io
Facts checked	20 Sep 2026

ExternalDNS integrations

ExternalDNS lists 16 integrations on its own site.

AWS Route 53
AWS Cloud Map
Azure DNS
Cloudflare
CoreDNS
DNSimple
Google Cloud DNS
GoDaddy
Linode DNS
NS1
Oracle Cloud Infrastructure DNS
OVHcloud
PowerDNS
Pi-hole
RFC2136
Scaleway DNS

See all ExternalDNS integrations →

Alternatives to ExternalDNS

See all ExternalDNS alternatives →

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Featured on iTechGuides

ExternalDNS is listed in our DNS Management Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update