AIRANKS — The Authoritative Rankings for AI Web Content

AIRANKS measures AI visibility: we ask AI models real product and service questions, capture the complete answers as immutable observations, and publish what they contain — which brands were mentioned, which domains were cited, and which exact pages were linked. Every domain gets an AIR score from 1–10 (a decile of visibility in the active dataset; 0 means insufficient data), with the methodology in the open.

AIR

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The Question

← all rankings / dataset COBALT

Best vpn for iphone

NordVPN takes the top spot in 100.0% of resamples. Of 10 ranked brands, only 5 hold a position we'd call firm.

0
answers sampled
0
brands named
1,000
bootstrap resamples

Who AI Cites For This Question

25 cited pages · bars vs the leader

The best VPNs for iPhone – top choices for iOS based on expert testing | TechRadarwww.techradar.comtechradar.com/vpn/the-best-vpn-for…ne?utm=airanks.net187
The 4 Best iPhone VPNs of 2026 - RTINGS.comwww.rtings.comrtings.com/vpn/reviews/best/iphone?utm=airanks.net112
Download VPN for iPhone and iPad | Proton VPNprotonvpn.comprotonvpn.com/download-ios?utm=airanks.net92
Free VPN for iPhone or iPad with no data limits | Proton VPNprotonvpn.comprotonvpn.com/free-vpn/ios?utm=airanks.net67
Download a VPN app for iOS (iPhone and iPad) | NordVPNnordvpn.comnordvpn.com/download/ios/?utm=airanks.net47
Best VPN for iPhones in 2026: NordVPN, Surfshark, & More | Security.orgwww.security.orgsecurity.org/vpn/best/iphone/?utm=airanks.net47
‎Proton VPN: Fast & Secure App - App Storeapps.apple.comapps.apple.com/us/app/proton-vpn-f…85?utm=airanks.net41
Best VPNs for iPhones in 2026, tested by a tech editor | The Independentwww.the-independent.comthe-independent.com/extras/indybes…ml?utm=airanks.net33

The Ranking, With Its Uncertainty

NordVPN locked NordVPN — ci 1.00–1.00 · n=364 · 100.0% of resamples held this rank · named in 99% of answers
ProtonVPN locked ProtonVPN — ci 0.89–0.89 · n=364 · 100.0% of resamples held this rank · named in 100% of answers
Surfshark locked Surfshark — ci 0.78–0.78 · n=364 · 100.0% of resamples held this rank · named in 91% of answers
Mullvad locked Mullvad — ci 0.56–0.67 · n=364 · 96.4% of resamples held this rank · named in 67% of answers
ExpressVPN locked ExpressVPN — ci 0.56–0.67 · n=364 · 96.4% of resamples held this rank · named in 59% of answers
Windscribe contested Windscribe — ci 0.11–0.44 · n=364 · 59.1% of resamples held this rank · named in 2% of answers
Private Internet Access contested Private Internet Access — ci 0.11–0.44 · n=364 · 46.2% of resamples held this rank · named in 1% of answers
IVPN gathering IVPN — gathering data, n=364. No bootstrap interval yet.
PrivadoVPN gathering PrivadoVPN — gathering data, n=364. No bootstrap interval yet.
TunnelBear gathering TunnelBear — gathering data, n=364. No bootstrap interval yet.

The Incomparability Lattice

what the intervals separate, not what the list claims

An edge means one brand's interval sits strictly above another's — zero overlap. No edge between two brands is not a gap in the drawing, it is the finding: their intervals overlap, and the bootstrap cannot tell them apart. Brands on the same rung are incomparable, not tied — the ranking above orders them anyway because a list has to print a total order; this diagram is the honest version.

NordVPN

1.00–1.00

ProtonVPN

0.89–0.89

Surfshark

0.78–0.78

Mullvad

0.56–0.67

ExpressVPN

0.56–0.67

Windscribe

0.11–0.44

Private Internet Access

0.11–0.44