By NHI Mgmt Group Editorial TeamPublished 2026-06-17Domain: Governance & RiskSource: DigiCert

TL;DR: Managed DNS can improve website performance, DNS security, and availability for organisations in Bogotá by combining load balancing, CDN integration, DNSSEC, and failover, according to DigiCert. The core governance issue is that DNS has become an availability and integrity control, not just a routing layer, and identity teams should treat it as part of resilience planning.


At a glance

What this is: This is a managed DNS guide for Bogotá enterprises, focused on faster resolution, stronger DNS integrity, and higher uptime.

Why it matters: It matters because DNS reliability and integrity affect customer access, trust, and outage blast radius across NHI, autonomous, and human-facing services.

By the numbers:

👉 Read DigiCert's blog on optimized enterprise DNS for Bogotá businesses


Context

Managed DNS is the control layer that decides how users and services reach an organisation’s internet-facing assets. In practical terms, it can improve speed, integrity, and resilience when traffic must be routed intelligently and DNS answers must remain trustworthy.

For IAM and NHI teams, DNS sits close to the trust boundary for user journeys, service endpoints, and automated integrations. When DNS is slow or tampered with, identity services, application reachability, and customer experience all degrade together, which is why DNS governance belongs in broader resilience planning.

Bogotá is a useful example because the operational problem is not unique to one city: enterprises need DNS that supports performance without weakening security or availability. That makes managed DNS a baseline infrastructure decision, not just a networking preference.


Key questions

Q: How should security teams govern DNS when it supports identity services?

A: Security teams should treat DNS as part of the service access path, not as a separate networking concern. If authentication, API access, or certificate validation depends on name resolution, then DNS integrity, availability, and change control should be included in identity governance, incident response, and recovery testing.

Q: When does DNS become a security control rather than an infrastructure utility?

A: DNS becomes a security control when its answers determine whether users or workloads reach the correct service. At that point, DNSSEC, delegation review, and monitoring for record changes are governance controls because they protect trust in the access path, not just uptime.

Q: What breaks when DNS failover is not tested regularly?

A: If failover is not tested, teams may discover too late that secondary DNS, TTL values, or registrar settings do not switch cleanly during an outage. The result is extended unavailability, failed authentication journeys, and confusion about whether the service or the resolution layer is actually broken.

Q: How do organisations know whether managed DNS is actually improving resilience?

A: They should measure resolution latency, failover success, signed-zone coverage, and the time required to recover from authoritative DNS failure. If those metrics do not improve, the environment may look modern while still leaving customer access exposed to preventable interruptions.


Technical breakdown

How managed DNS improves routing performance

Managed DNS improves resolution performance by answering queries from distributed infrastructure and directing users to the nearest or healthiest endpoint. Load balancing and CDN integration reduce latency by avoiding unnecessary network distance, while smart routing can steer traffic around congestion or degraded nodes. For public-facing services, this is not cosmetic. DNS response quality influences perceived application speed before the application itself even loads. In identity-heavy environments, faster DNS also shortens the time it takes for users, APIs, and workloads to reach authentication or verification services.

Practical implication: place DNS performance under the same availability review you use for customer-facing identity and application services.

DNSSEC and the integrity of DNS answers

DNSSEC adds cryptographic validation to DNS data so resolvers can detect tampering or forged responses. It does not encrypt traffic, but it does protect the integrity and authenticity of DNS records, which matters when users must be sent to the correct endpoint without interception. In threat terms, this reduces exposure to DNS hijacking and unauthorized record modification. For security teams, the important point is that DNS becomes part of trust enforcement, especially where service discovery, login redirects, or workload endpoints depend on accurate resolution.

Practical implication: treat DNSSEC as an integrity control and verify that critical zones are signed and monitored.

Secondary DNS and failover for uninterrupted resolution

Secondary DNS provides alternate authoritative infrastructure so queries still resolve if a primary server fails or a network path breaks. Failover is the mechanism that shifts resolution to a healthy path before outage conditions become user-visible. This is especially relevant in environments where DNS sits upstream of authentication flows, remote access, or API dependencies. If resolution stops, the rest of the security stack often appears broken even when downstream systems are still healthy. Availability is therefore a governance issue, not merely an operations metric.

Practical implication: design failover tests for DNS the same way you test recovery paths for critical identity services.


Threat narrative

Attacker objective: The objective is to control or break name resolution so users cannot reliably reach the intended service.

  1. Entry begins when attackers or failures target DNS resolution, because that layer determines whether users reach legitimate services at all.
  2. Escalation occurs when an attacker can alter DNS answers, hijack records, or disrupt resolution paths, allowing traffic to be redirected or denied.
  3. Impact is service disruption, loss of trust in the endpoint, and potential interception or fraud if users are sent to an unintended destination.

Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.


NHI Mgmt Group analysis

Managed DNS is no longer just a performance layer. It is now part of the trust path for customer access, application reachability, and service continuity. Once DNS becomes a control point for routing and verification, the organisation has to govern it like any other high-value identity-adjacent dependency. Practitioners should treat DNS health, DNS integrity, and failover readiness as resilience controls, not optional tuning.

DNS integrity failures create a governance problem before they create a technical outage. If a resolver returns the wrong answer, every downstream control that assumes correct destination selection starts from a false premise. That is why DNSSEC matters in identity-heavy environments: not because it solves every threat, but because it preserves the authenticity of the path to the service. Security teams should view unsigned or weakly monitored DNS zones as trust debt.

Identity programmes should map DNS dependencies into service criticality tiers. When authentication services, workload endpoints, or public portals depend on DNS, the blast radius of a failure is larger than the network team may report. The practical lesson is to include DNS in access path reviews, incident playbooks, and recovery testing. Teams that separate DNS from identity governance miss a core dependency in modern digital trust.

Managed DNS reveals a broader infrastructure truth: availability is part of identity assurance. Users cannot trust an access path they cannot reach, and automated systems cannot authenticate against endpoints they cannot resolve. For practitioners, that means resilience engineering and identity governance now overlap at the DNS layer. The right question is not whether DNS belongs in IAM thinking, but how quickly the programme can absorb it.

From our research:

  • Only 44% of developers are reported to follow security best practices for secrets management, exposing a significant developer behaviour gap, according to The State of Secrets in AppSec.
  • The average estimated time to remediate a leaked secret is 27 days, despite 75% of organisations expressing strong confidence in their secrets management capabilities.
  • For a broader lifecycle lens, see NHI Lifecycle Management Guide for the governance patterns that keep DNS-adjacent identity dependencies under control.

What this signals

DNS resilience is now a programme-level concern, not a networking footnote. If the access path is unstable, identity controls cannot deliver reliable assurance to users or workloads. Teams that own IAM, NHI, and application availability should align on DNS change control, failover testing, and tamper detection as shared operational responsibilities.

Identity blast radius now includes resolution paths. A compromised or misconfigured DNS layer can redirect traffic, interrupt authentication, or undermine confidence in service endpoints. That means security leaders should include DNS in dependency mapping for critical identities and in recovery planning for services that must remain reachable under stress.

The practical signal is simple: if your organisation cannot prove signed-zone coverage, validated failover, and monitored routing for critical services, then availability risk remains underestimated. Resilience work should extend into the trust layer that sits between users, workloads, and the services they need to reach.


For practitioners

  • Map DNS dependencies to identity services Identify which login flows, certificate checks, API endpoints, and workload services depend on DNS resolution so outages are assessed by business impact, not by network scope alone.
  • Validate DNSSEC on critical zones Confirm that public-facing and high-value internal zones are signed, monitored for tampering, and reviewed after every delegation or registrar change.
  • Test DNS failover as part of recovery exercises Include authoritative DNS failure scenarios in resilience drills so teams can confirm that secondary DNS, TTL settings, and route switching behave as expected.
  • Review routing controls for latency-sensitive services Check whether load balancing and CDN placement actually reduce resolution and access delays for users in the regions you serve, especially where authentication and customer portals are involved.

Key takeaways

  • Managed DNS improves more than performance, because it also affects how reliably users and services reach trusted endpoints.
  • DNSSEC and failover are governance controls as much as technical features, because they protect integrity and continuity of the access path.
  • IAM and NHI teams should map DNS dependencies into resilience planning so identity assurance includes reachability, not just authentication.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

NIST CSF 2.0, NIST Zero Trust (SP 800-207) and NIST SP 800-63 set the governance and control requirements practitioners need to meet.

FrameworkControl / ReferenceRelevance
NIST CSF 2.0PR.DS-2DNSSEC and routing integrity support protected data transmission and service trust.
NIST Zero Trust (SP 800-207)PR.AC-4DNS affects whether users and workloads reach the right service endpoint.
NIST SP 800-63Identity journeys depend on reliable resolution of login and verification endpoints.

Ensure resolution reliability for identity endpoints that support federation and authentication.


Key terms

  • Managed DNS: A managed DNS service handles authoritative name resolution on behalf of an organisation. It centralises routing, failover, and security features so the domain can stay reachable and trustworthy without every team operating DNS infrastructure manually.
  • Dnssec: DNSSEC is a set of cryptographic extensions that lets resolvers verify the authenticity of DNS data. It does not hide traffic, but it helps prevent forged or modified records from silently redirecting users or services to the wrong destination.
  • Secondary DNS: Secondary DNS is backup authoritative infrastructure that can continue answering queries when the primary DNS service fails. It is a resilience control that protects continuity of resolution, especially for services where downtime would interrupt authentication or customer access.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity security are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by DigiCert: Optimized Enterprise DNS for Bogotá, Colombia. Read the original.

NHIMG Editorial Note
Published by the NHIMG editorial team on 2026-06-17.
NHI Mgmt Group — the independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org