Zero trust network access software: AI search visibility ranking (2026)
How AI search engines rank zero trust network access software by visibility and citations. 20 brands measured monthly across Google AI Mode: which brands the AI names in answers, which domains it cites as sources, and how the leaders compare. Security platforms used to replace traditional VPNs with identity-aware, least-privilege access to applications and internal resources. Composite score: 70% visibility (% of AI answers naming the brand) + 30% citation rate (% citing the brand's domain). Full methodology →
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When evaluating Zero trust network access software, AI engines consistently highlight Zscaler as the leading solution, with a visibility percentage of 75.0. Also frequently mentioned are Twingate and Cloudflare One, but Zscaler commands a significant lead. If you're seeking a standout brand in this category, Zscaler often tops the list as the most referenced choice across various AI models.
The current rankings are influenced by citations from multiple sources such as guideflow.com and blog.openvpn.net, with input from platforms like YouTube and Reddit as well. These sources typically serve as aggregators or review sites, providing broad insights that often shape how AI engines determine the prominence and relevance of each brand on the market.
For buyers exploring this list, recent reviews and third-party validation play a crucial role. As AI engines tend to value these elements highly when determining brand authority, considering how often specific brands appear in up-to-date, authoritative sources can provide meaningful context. This emphasizes the importance of dynamic, reputable content in the buying decision process.
At a glance
What we observed in this category
Zscaler leads the zero trust network access software category with a visibility score of 75.0%, more than 12 percentage points above the second-ranked brand Twingate at 62.5%, and far above the category average of 11.9%. That gap is material because it reflects how consistently Google AI Mode surfaces Zscaler across queries, not just occasionally. Twingate rose from rank 6 to rank 2 with a visibility delta of 50 points, matching Zscaler's own period-on-period gain, which signals the mid-tier is compressing even as the leader holds its position.
The sharpest divergence between visibility and citation sits with OpenVPN Access Server, which holds 0.0% visibility yet records a 100.0% citation rate, the highest in the category. This means the AI cites OpenVPN content as a source but does not name it as a recommended brand in responses. Cloudflare One shows the inverse pattern to a lesser degree, with 25.0% visibility but 50.0% citations, while Twingate at 62.5% visibility carries only 12.5% citations, suggesting it is named often but not backed by cited sources at a matching rate.
Google AI Mode is the dominant engine for every brand in the top 10, with no outlier engine appearing anywhere in the data set. The top cited sources include guideflow.com, blog.openvpn.net, reddit.com, g2.com, and cloudflare.com, pointing to a mix of tutorial content, community forums, review platforms, and vendor-owned domains. The presence of youtube.com and reddit.com in the cited source list suggests the AI is drawing on informal, user-generated content alongside structured review data when forming answers in this category.
Movers & shakers since last refresh
Biggest visibility risers
-
Zscaler 25% → 75% · rank #1 → #1+50pp
-
Twingate 12% → 62% · rank #6 → #2+50pp
-
Cloudflare One 12% → 25% · rank #3 → #3+12pp
The ranking
| # | Brand | Visibility | Citation | Top engine |
|---|---|---|---|---|
| 1 |
zscaler.com
|
75% | 50% | Google AI Mode |
Zscaler sits at 75.0% visibility and 50.0% citation rate, both well above category averages of 11.9% and 16.2%, making it the clear dual leader in this audit. |
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| 2 |
twingate.com
|
62% | 12% | Google AI Mode |
Twingate jumped from rank 6 to rank 2 with a 50-point visibility gain, but its 12.5% citation rate reveals a significant gap between how often it is named versus sourced. |
||||
| 3 |
cloudflare.com
|
25% | 50% | Google AI Mode |
Cloudflare One holds 25.0% visibility yet matches Zscaler's 50.0% citation rate, indicating its content is trusted as a source more than its brand frequency in responses suggests. |
||||
| 4 |
openvpn.net
|
0% | 100% | Google AI Mode |
OpenVPN Access Server records 0.0% visibility but a category-high 100.0% citation rate, meaning the AI uses its content as a reference without surfacing it as a recommended product. |
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| 5 |
tailscale.com
|
25% | 38% | Google AI Mode |
Tailscale sits at 25.0% visibility and 37.5% citations, both above the category averages, placing it as a modest but proportionally consistent performer among the top five brands. |
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| 6 |
nordlayer.com
|
25% | 25% | Google AI Mode |
| 7 |
paloaltonetworks.com
|
12% | 12% | Google AI Mode |
| 8 |
perimeter81.com
|
12% | 0% | Google AI Mode |
| 9 |
checkpoint.com
|
0% | 25% | Google AI Mode |
| 10 |
netskope.com
|
0% | 12% | Google AI Mode |
| 11 |
cisco.com
|
0% | 0% | Google AI Mode |
| 12 |
akamai.com
|
0% | 0% | Google AI Mode |
| 13 |
cloud.google.com
|
0% | 0% | Google AI Mode |
| 14 |
appgate.com
|
0% | 0% | Google AI Mode |
| 15 |
ivanti.com
|
0% | 0% | Google AI Mode |
| 16 |
strongdm.com
|
0% | 0% | Google AI Mode |
| 17 |
goteleport.com
|
0% | 0% | Google AI Mode |
| 18 |
catonetworks.com
|
0% | 0% | Google AI Mode |
| 19 |
keepersecurity.com
|
0% | 0% | Google AI Mode |
| 20 |
axis.security
|
0% | 0% | Google AI Mode |
Sources AI engines trust in this category
Across the 8 buyer-intent queries we ran on zero trust network access software, these are the domains Google AI Mode cited most often. If you're not on this list — or if your competitors are — that's a concrete PR / linkbuilding target.
How to read this ranking
Four things worth knowing before you act on the numbers above. These are the same definitions across every industry page — for category-specific observations, see the What we observed section above (where available) and the per-brand insights inline in the ranking.
Visibility = being named
A brand's visibility % is the share of AI answers that mention it by name in the response prose. This is who AI engines actively recommend to the buyer. More on visibility →
Citation rate = being trusted
Citation rate is the share of AI answers that include the brand's domain as a clickable source link. This is what the AI treats as authoritative evidence, different from being named. More on citation rate →
Top engine differs by brand
The "top engine" column shows which AI surface each brand performs best on. Big gaps between a brand's score across engines usually points to specific content or schema gaps. How AI engines pick sources →
Rankings move month to month
AI engines re-crawl and re-rank on shorter cycles than classical search. We re-audit every brand on this list at least every 30 days and refresh this page automatically. How AI search ranking works →
Get your own zero trust network access software brand audited
The brands above were curated from public market-leader lists. Want the same measurement against your own brand — including the queries you appear on, which competitors get named instead, and a prioritised fix list? Run a free preview.
Frequently asked about zero trust network access software AI visibility
Who leads AI visibility in zero trust network access software?
Zscaler leads with 75.0% visibility and a composite score of 67.5, both significantly above the category average visibility of 11.9%. Twingate is the closest competitor at 62.5% visibility, but holds a composite score of only 47.5.
Which brand has the highest citation rate in this category even without visibility?
OpenVPN Access Server records a 100.0% citation rate despite 0.0% visibility, meaning Google AI Mode references its content as a source but does not surface it as a named brand recommendation.
What sources does Google AI Mode cite most for zero trust network access research?
The top cited sources include guideflow.com, blog.openvpn.net, youtube.com, reddit.com, g2.com, and cloudflare.com, spanning tutorial sites, community forums, review platforms, and vendor-owned domains.
Which brand showed the biggest improvement in AI visibility this period?
Both Zscaler and Twingate recorded a visibility delta of 50 points. Twingate's gain was more structurally significant because it also moved four rank positions, from rank 6 to rank 2.
Is there a brand with high visibility but low citation support in this category?
Twingate is the clearest example, with 62.5% visibility but only 12.5% citation rate, suggesting it appears frequently in AI responses without strong backing from cited third-party sources.
Which engine dominates AI visibility across all brands in this category?
Google AI Mode is the top engine for every brand in the top 10 without exception, indicating this category's AI visibility landscape is effectively Google AI Mode only at this point in time.