150 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener'>trScore algorithm: Learn more.</a>Score 8.3 out of 100
Based on 150 reviews and ratings
25 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener'>trScore algorithm: Learn more.</a>Score 8.1 out of 100
Based on 25 reviews and ratings
Attribute Ratings
- Datadog is rated higher in 1 area: Likelihood to Recommend
- Nagios XI is rated higher in 1 area: Support Rating
Likelihood to Recommend

9.0
Datadog
90%
19 Ratings
8.0
Nagios XI
80%
3 Ratings
Usability

10.0
Datadog
100%
1 Rating
Nagios XI
N/A
0 Ratings
Support Rating

8.8
Datadog
88%
10 Ratings
9.0
Nagios XI
90%
3 Ratings
Likelihood to Recommend
Datadog
Datadog is a no-brainer for any environment that relies on multiple servers. Even for one server, it's so much better to use for monitoring and alert capability than anything else I remember looking at before we started using Datadog. Teams can even use it to track their progress of investigating an alert so multiple people aren't unknowingly looking into the same exact issue unnecessarily.

Verified User
Director in Research & Development
Financial Services Company, 1-10 employeesNagios XI
Nagios is best suited in an large organization where it is production 24/7, but in SME (small/medium enterprise) you have to pay a lot to the administrator. Instead use some graphical and easy to use tool like IDERA.
Deputy Manager
Pak Suzuki Motor Company LimitedAutomotive, 1001-5000 employees
Pros
Datadog
- APIs, the ability to interact with the data we pull into data dog is key. We port the information over to Servicenow, so the ability to pull everything into DataDog, then Servicenow, is a key component of our success here at Wayfair.
- Simple Interface - clean, useful, effective. Allows users to use DataDog for one reason, get work done.
- Lightweight agent on hosts
ServiceNow Lead Engineer/Architect
WayfairInformation Technology and Services, 10,001+ employees
Nagios XI
- 3rd party integrations via open API.
- Extremely flexible and configurable long term storage of the very detailed performance information (years of per 1-5 min perf data numbers).
- Small Nagios XI footprint (very efficient MySQL DB and flat files for perf data), making it powerful tool for thousands of checks and hundreds of reports.
- Responsive support, willing to provide resolution outside the box and by various means possible.

Verified User
Professional in Information Technology
Machinery Company, 10,001+ employeesCons
Datadog
- User interface could be improved in some areas, looking for host information and the agent install link takes a bit of time.
- Configuration of the agent is generally done via a config file which is a pro and a con. It would be nice to have some UI to configure various agent options.
- Billing isn't entirely straightforward, they could use more reports to figure out the source of your monthly costs.
Software Architect
SpringAheadInternet, 51-200 employees
Nagios XI
- The mobile interface is newly developed and needs more development. It should provide more options for the audit log and add more detail for the configuration rollback options.
- The scheduled report should be included in standard edition.
- Master Node is configurable on LINUX platform only. We had to hire a Linux administrator
IT Architecture Manager
Edenred MéxicoComputer Software, 501-1000 employees
Pricing Details
Datadog
General
Free Trial
Yes
Free/Freemium Version
—Premium Consulting/Integration Services
—Entry-level set up fee?
Optional
Starting Price
$0 Up to 5 hosts
Datadog Editions & Modules
On-premise Edition
Infrastructure | $15.001 |
---|---|
Log Management | $1.272 |
APM | $31.003 |
- Per Host Per Month
- Per Million Log Events
- Per Host Per Month
SaaS Edition
Free | $01 |
---|---|
Standard | $15/host2 |
Enterprise | Custom3 |
- Up to 5 hosts
- Up to 500 hosts
- 500+ hosts
Additional Pricing Details
—Nagios XI
General
Free Trial
—Free/Freemium Version
—Premium Consulting/Integration Services
—Entry-level set up fee?
No
Starting Price
$1,995 Per Instance
Nagios XI Editions & Modules
Edition
Standard | $19951 |
---|---|
Enterprise | $34951 |
- Per Instance
Additional Pricing Details
—Usability
Datadog
Datadog 10.0
Based on 1 answer
The user interface is quite intuitive with the exception of the network map. As a deployer of software, it is trivial to setup.

Verified User
Engineer in Information Technology
Information Technology & Services Company, 501-1000 employeesNagios XI
No score
No answers yet
No answers on this topic
Support Rating
Datadog
Datadog 8.8
Based on 10 answers
The support team usually gets it right. We did have a rather complicate issue setting up monitoring on a domain controller. However, they are usually responsive and helpful over chat. The downside would be I don’t think they have any phone support. If that is important to you this might not be a good fit.

Verified User
Director in Information Technology
Consumer Goods Company, 51-200 employeesNagios XI
Nagios XI 9.0
Based on 3 answers
Only because I never give out 10s.Nagios support goes above and beyond in helping with issues, workarounds, specific cases and requirements. Tracks customer implementation and history of the most important issues. Can’t complain (except that the team is small and quite probably overworked). Time to resolution could be much improved if only there were more folks to help around.

Verified User
Professional in Information Technology
Machinery Company, 10,001+ employeesAlternatives Considered
Datadog
We are still trying other products, but people still like Datadog. After setting up a dashboard, it's great for monitoring instances on Datadog. Also, the DevOps team had a good time setting up Datadog. It means Datadog was way easier to set up compared to those others.

Verified User
Engineer in Information Technology
Information Technology and Services Company, 201-500 employeesNagios XI
Cost efficiency is the main reason which we opted [for] Nagios as we were previously using IDERA tool with comprehensive database monitoring solutions, but the slow performance we are getting while monitoring the instance of the database.
Deputy Manager
Pak Suzuki Motor Company LimitedAutomotive, 1001-5000 employees
Return on Investment
Datadog
- One of our critical production databases went down a couple of weeks back. Just because we had the Datadog monitoring enabled for that database, Datadog sent the alerts to PagerDuty and we were instantly notified via pager and email alert. We could act right away and bring up the database within a few mins.
- Ability to create custom screenboards have allowed us to track the critical and warning alerts in front of our eyes all the time
Systems Analyst, Engineering
Dreamworks AnimationEntertainment, 1001-5000 employees
Nagios XI
- Reduction of at least 10% of false alarms.
- Increased network traffic by 5%.
IT Architecture Manager
Edenred MéxicoComputer Software, 501-1000 employees