Every category where a model named Nagios for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant	Since September 2026
Network monitoring and management	Network and edge	4%	7 of 78	44%	32	criticized challenger
Infrastructure monitoring	IT operations and endpoint	0%	72 of 79	38%	21	criticized challenger	=heldSince September 2026: 0% → 0%, ±0 points. Inside the 11-point floor: within noise. Read over the models both editions asked.

Movement

This is the first edition on this tier, so no move can be computed for Nagios yet. From the next edition this section shows, per buyer segment and per category, whether its share moved by more than the measured noise floor.

By model

How each model treated Nagios across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.

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Model	First choice	Alternative	Mention	Negative	Labels
Claude Haiku 4.5	0	1	2	2	5
GPT-5.4 mini	0	1	1	0	2
Gemini 3.5 Flash	0	0	0	3	3
Perplexity Sonar	0	2	0	2	4
Grok 4.20	1	0	4	2	7
Mistral Small	1	1	2	1	5
DeepSeek V4 Flash	0	0	3	3	6
Llama 4 Maverick	0	1	0	0	1
Qwen 3.7 Flash	0	0	0	3	3
Kimi K2	0	2	0	3	5
GLM 4.7 FlashX	0	1	3	0	4
MiniMax M2.5	0	1	1	1	3
GPT-6 Luna	0	0	0	1	1
Muse Glimmer 30B	0	1	2	1	4

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct12 labelsNone

Paraphrase3 labelsNone

Comparative35 labelsNone

Budget-constrained30 labels3

Scale-constrained13 labelsNone

Negative66 labelsNone

First choiceAlternativeMentionNegative159 labels in all, every segment counted; 3 of the 3 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“often an open-source option like Zabbix or Nagios Core, as they provide robust features at zero licensing cost” Grok 4.20 · Network monitoring · budget prompt · first choice

“For most small businesses, Zabbix and Nagios Core are the top free choices” Mistral Small · Network monitoring · budget prompt · first choice

“Nagios Xi - a broad network and infrastructure monitoring tool with sensor-level control, suitable for mid-market IT teams.” Llama 4 Maverick · Network monitoring · direct prompt · alternative

“Best for enterprise server and network monitoring... but it requires significant configuration and technical expertise.” Mistral Small · Network monitoring · comparative prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Legacy "Static" Tools (Avoid for Modern/Cloud-Native Environments)* Examples: Nagios Core, Cacti, Munin, Zenoss.” Gemini 3.5 Flash · Infra monitoring · negative prompt · hard negative

“Avoid or plan to migrate from: - Nagios for modern/cloud-native environments” Kimi K2 · Infra monitoring · negative prompt · hard negative

“Nagios: Steer clear if you're not a highly technical user.” Grok 4.20 · Network monitoring · negative prompt · hard negative

“Avoid outright: Nagios (unless legacy-bound)” DeepSeek V4 Flash · Infra monitoring · negative prompt · hard negative

Named alongside

The products named in the same answers as Nagios, over the 156 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Nagios was named but was not.

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ProductSame answerTook the first choice insteadHead to head

Zabbix136 of 15618Compare →

Paessler PRTG Network Monitor69 of 15623Compare →

Dynatrace60 of 1566Not among the top eight

Datadog55 of 1569Not among the top eight

New Relic48 of 1561Not among the top eight

ManageEngine OpManager45 of 1566Compare →

Datadog Network Monitoring44 of 1563Compare →

Prometheus39 of 1564Not among the top eight

SolarWinds Network Performance Monitor37 of 15612Not among the top eight

Auvik32 of 1561Compare →

A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Nagios. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 138 of the 156 answers that named Nagios and are not a share of its labels.

Domains cited

netdata.cloud51

motadata.com44

guideflow.com43

comparitech.com42

datamation.com42

g2.com39

uptrace.dev37

ir.com36

pandorafms.com36

learn.g2.com34

404 of the 404 domain citations in answers naming Nagios came from somebody else's page.

Pages cited

datamation.com/networks/network-monitoring-software42

guideflow.com/blog/network-monitoring-tools39

pandorafms.com/blog/network-monitoring-tools35

ir.com/guides/network-monitoring-tools32

motadata.com/blog/best-it-infrastructure-monitoring-tools32

netdata.cloud/resources/best-network-monitoring-tools27

instatus.com/blog/small-business-network-monitoring-software22

middleware.io/blog/infrastructure-monitoring-tools22

Pages are listed as the models cited them.

Search and answers

nagios.com is not in Google's top ten for any of the category's searches. In the answers, Nagios takes 4% of first choices and Auvik takes 26%.

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In search

Google, US estimates

Position for “network monitoring tool”

–

not in the top ten

Position for “network monitoring tools”

–

not in the top ten

Searches for its name, Google: 3,600 a month (“nagios”)
AI search demand for its name, est.: 542 a month
Organic visits to its site: about 3,359 a month
Searches its site ranks for: 1,160 · 122 in the top three
Sites linking to it: 3,748
Paid Google search: No ads found in the estimate; that does not mean it runs none

Ads on GoogleDetailLess

12 ads · 12 text · 3 shown in the last 30 days

First shown November 2024, as Nagios Enterprises LLC, verified. Ads started 2025-10 to 2026-09: 2 in the year, 10 before.

On Google's pages: 1 2 3 4

In answers

This edition

Share of first choices

rank 7 of 78 in network monitoring

Segment leader

26%

Auvik

First choices: 3 across its categories
Named in: 156 answers
Its own site cited: in 138 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

What it publishes

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Addresses on nagios.com

1,773

subdomains included

Content

412

counted in the table below

Documentation

629

Product · Integration

155 · 0

Kind	Pages	Last 90 days	Latest	Categories named
Podcast or video	130	0	2026-05-21
Case study	85	0	2025-05-29	Logs, Infra monitoring
Conference or event	82	7	2026-09-14
Webinar or virtual event	54	2	2026-08-11	Infra monitoring
Blog	44	0	2026-04-28	Infra monitoring, SIEM
Comparison	10	1	2026-07-01
Template or tool	3	undated
Report or ebook	2	undated
Glossary or explainer	2	0	2025-05-29

Most recent

2026-09-14Conference conference or event
2026-08-11Cloud ready getting nagios xi running in aws webinar or virtual event
2026-08-06Nagios world conference 2025 code of the ancients matthew custer nick ziebell conference or event
2026-08-04Nagios world conference 2025 rant at a developer aaron cieslicki conference or event
2026-07-30Nagios world conference 2025 open discussions cory norell conference or event
2026-07-28Nagios world conference 2025 nagios core past present future aaron cieslicki conference or event

Events in person

Last twelve months

September 14, 2026 to September 17, 2026Nagios World Conference 2026Saint Paul · hosted
August 25, 2026Process Isolation AKA Containers in Go with Michael DurenNagios Headquarters, Suite 310, St. Paul, US · hosted

As the event pages on nagios.com state them, read September 28, 2026.

How it is countedHide how it is counted

Every page nagios.com exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read September 29, 2026.

Names read as Nagios

What the judge wrote, as written, with how often. The vendor table decides that these count as Nagios; a claim can dispute any of them.

Nagios Core 14Nagios XI 4Checkmk / Nagios 1Nagios (Core & XI) 1Nagios (Core and XI) 1Nagios (Core/XI) 1Nagios (and Nagios Core) 1Nagios (free Core version) 1Nagios Core / XI 1Nagios Core/XI 1Nagios XI / Nagios Core 1Nagios XI/Core 1Nagios Xi 1

Follow Nagios

An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.

Already following? Everything you follow, with a stop for each.

The company

Nagios is its own company.

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In its own words

Stated by the vendor, not checked

Positioning: Enterprise IT Infrastructure Monitoring Platform
nagios.com
For: businesses and organizations worldwide
nagios.com
Price stated: Perpetual licensing with no recurring subscription fees nagios.com
Starting price: Free nagios.com/pricing-plans
Free plan or trial: Start a free 30-day trial today! nagios.com
Customers named: IBMUniversity of St. ThomasVersiumSunriseWatch CommunicationsE-ServicesASERelyIT
Not stated on the pages read: Integrations, certifications, hosting

What Nagios's own pages state, read September 28, 2026: nagios.com, nagios.com/pricing-plans, nagios.com/products, nagios.com/case-studies. A claimed page can correct any of them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Nagios's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Nagios, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for Nagios by email, built from the raw record of the edition. It shows:

where Nagios is named, by buyer and by framing, and which cells hold its first choices;
the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
its vocabulary against the segment leader's, and the pages the models cited;
who was chosen in the answers that did not name Nagios, and every reason the record gives;
a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
one page of published figures cleared to show a buyer.