Every category where a model named Zeek 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 detection and response	Security operations	2%	12 of 102	0%	7	under 10 labels · led by ManageEngine NetFlow Analyzer at 21%
OT and IoT security	Security operations	0%	30 of 107	0%	2	under 10 labels · led by Microsoft Defender for IoT at 21%

Movement

This is the first edition on this tier, so no move can be computed for Zeek 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 Zeek 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	Labels
Claude Haiku 4.5	0	0	0	0
GPT-5.4 mini	0	0	0	0
Gemini 3.5 Flash	0	0	0	0
Perplexity Sonar	0	0	0	0
Grok 4.1 Fast	0	1	0	1
Mistral Small	0	0	0	0
DeepSeek V4 Flash	0	1	0	1
Llama 4 Maverick	0	1	0	1
Qwen 3.7 Flash	0	1	0	1
Kimi K2	1	0	0	1
GLM 4.7 FlashX	0	1	1	2
MiniMax M2.5	0	1	0	1
GPT-6 Luna	0	0	0	0
Muse Glimmer 30B	0	1	0	1

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

Direct1 labelNone

Paraphrase2 labelsNone

Comparative1 labelNone

Budget-constrained14 labels2

Scale-constrained1 labelNone

Negative6 labelsNone

First choiceAlternativeMentionNegative25 labels in all, every segment counted; 2 of the 2 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.

“$0 (DIY) | Suricata or Zeek” Kimi K2 · NDR · budget prompt · first choice

“Zeek - a free, open-source platform that provides network security monitoring and threat detection.” Llama 4 Maverick · NDR · budget prompt · alternative

“open-source stacks such as Zeek and Suricata for detection + a SIEM/ELK stack for correlation” Muse Glimmer 30B · NDR · budget prompt · alternative

“Lightweight, open‑source network traffic analyzer. | No built‑in visualization or alerting” GLM 4.7 FlashX · NDR · budget 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.

No model argued against it.

Named alongside

The products named in the same answers as Zeek, over the 25 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Zeek was named but was not.

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ProductSame answerTook the first choice insteadHead to head

Suricata20 of 251Not among the top eight

Security Onion12 of 259Not among the top eight

Darktrace12 of 250Not among the top eight

Vectra AI11 of 251Not among the top eight

Corelight Open NDR9 of 251Not among the top eight

ExtraHop RevealX7 of 250Not among the top eight

ManageEngine NetFlow Analyzer5 of 253Not among the top eight

Dragos Platform4 of 250Not among the top eight

Rapid7 InsightIDR4 of 250Not among the top eight

Claroty xDome3 of 250Not among the top eight

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 Zeek. 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 22 of the 25 answers that named Zeek and are not a share of its labels.

Domains cited

comparitech.com14

g2.com14

dupple.com12

us.fitgap.com11

cybersecuritynews.com9

sourceforge.net9

myhospitalnow.com8

slashdot.org8

peerspot.com6

cotocus.com5

No domain is on file for Zeek, so its own site is not marked.

Pages cited

comparitech.com/net-admin/network-detection-response-software12

dupple.com/blog/network-security-monitoring-tools12

cybersecuritynews.com/best-ndr-solutions8

us.fitgap.com/search/network-detection-and-response-ndr-software/small-business8

g2.com/categories/network-detection-and-response-ndr/small-business6

myhospitalnow.com/blog/top-10-network-detection-response-ndr-features-pros-cons-comparison6

cotocus.com/blog/top-10-network-detection-and-response-ndr-tools-in-2025-features-pros-con4

cyberpress.org/ndr-tools-by-use-case4

Pages are listed as the models cited them.

Search and answers

Where Zeek stands in Google search beside where it stands in the models' answers.

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In search

Google, US estimates

Searches for its name, Google: 3,600 a month (“zeek”)
AI search demand for its name, est.: 1,042 a month
Its own site: No site of its own on file, so no site figures

In answers

This edition

Share of first choices

rank 12 of 102 in NDR

Segment leader

21%

ManageEngine NetFlow Analyzer

First choices: 2 across its categories
Named in: 25 answers
Its own site cited: No site on file to match

Search figures are US estimates from DataForSEO, read October 5, 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.

Names read as Zeek

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

Zeek (formerly Bro) 3

Follow Zeek

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.

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 Zeek'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 Zeek, 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 Zeek by email, built from the raw record of the edition. It shows:

where Zeek 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 Zeek, 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.