Nagios XI vs Datadog Infrastructure

Name: Datadog Infrastructure
Brand: Datadog Infrastructure
Availability: OnlineOnly

Network Monitoring pricing comparison · 2026

Nagios XI pricing ranges from $0–$19995/month, while Datadog Infrastructure ranges from $0–$23/month. Datadog Infrastructure is typically 100% more affordable, though your actual cost depends on tier and team size.

Network Monitoring

Nagios XI

$0–$19995

/month

1 plan · Free tier

Full pricing breakdown →

Network Monitoring

Datadog Infrastructure

$0–$23

/month

3 plans · Free tier

Full pricing breakdown →

Nagios XI and Datadog Infrastructure both operate in the network monitoring category. This page compares their list pricing.

Plan-by-Plan Pricing

Plan	Nagios XI	Datadog Infrastructure
Standard	Free /month	Free /month
Pro	—	$18 /month
Enterprise	—	Custom

Hidden Costs

Beyond the sticker price — what catches buyers off guard.

Nagios XI 2 hidden costs

medium

Linux Administrator Required for Master Node $50,000-$80,000

low

Feature Restrictions in Standard Edition Varies by edition

See all Nagios XI hidden costs →

Datadog Infrastructure 5 hidden costs

high

Custom Metrics Overage Charges $0.05/metric

critical

Unpredictable Billing from Multiple SKUs 50-300% of expected costs

medium

New Feature Pricing During Contract Term 10-30% of contract value

high

Log Ingestion and Retention Costs $1.70/million log lines

critical

APM and Tracing Costs 20-100% of infrastructure costs

See all Datadog Infrastructure hidden costs →

Try Nagios XI Free

Try Datadog Infrastructure Free