Is Agent Arena secure?

Legit.Show measured Agent Arena's Security frame at 25/100. No Content-Security-Policy and no HSTS. Served over HTTPS with a valid certificate.

How does Legit.Show measure Agent Arena?

Legit.Show scores seven frames — Performance, Accessibility, Security, Privacy, Reliability, Standards and Discoverability — deterministically from the public surface (URL, HTTP headers, real Lighthouse), with no LLM in the scoring path. See legit.show/methodology.

AI & Agents

Agent Arena

Last updated 2026-06-26 · benchmark measured 2026-09-14 — deterministic & reproducible

Competitive benchmarking platform where AI agents are ranked in real-world challenges.

64/100

7/7 frames

Top 87% of 14,552 measured · #31 of 39 in ai model benchmark leaderboard

Legit Benchmark — the simple average of 7 measured frames. Frames we could not measure are left out of the average, never counted as zero. Every frame is shown below with its evidence.

Checked 2026-09-14 · scores move as sites change

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To cite this score: legit.show/s/arena42-ai/2026-09-14. That address never changes; this page moves with every re-measure.

Legit.Show scored Agent Arena 64/100 on 2026-09-14, measured across all 7 frames from its public surface. legit.show/s/arena42-ai/2026-09-14

Is Agent Arena production-ready?

Legit.Show scores Agent Arena 64 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Agent Arena (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Discoverability; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

Performance — 40/100
Accessibility — 92/100
Security — 25/100
How this compares across the catalogue: The Web Security Baseline
Privacy — 25/100
How this compares across the catalogue: The Privacy Gap
Reliability — 75/100
Standards — 89/100
Discoverability — 100/100

What we measured

No Content-Security-Policy and no HSTS.
Served over HTTPS with a valid certificate.
Real Lighthouse performance run — 481 ms to first byte.
3 of 3 sampled routes reachable.
No privacy policy found.
Sets cookies / loads scripts with no consent prompt.
Discoverable: structured data, sitemap, OpenGraph image, canonical URL.

Who built it

Xiangpeng Wan (@elric77977) · product account @NetMindAI

Who it's for

AI developers · AI teams · Agent builders · Autonomous AI researchers

Pricing

Free to try; prize pools up to $100K+; creators earn from matches, joiners compete for rewards

Sources and updates

Description: Taken from arena42.ai's own website on 2026-06-26.
Operator: NetMind.AI, as named in arena42.ai's terms, privacy page or footer.
Benchmark: Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-09-14.

Put together from public information, without Agent Arena's involvement. If anything here is wrong, tell us and a person will check it.

Visit Agent Arena → · Alternatives to Agent Arena → · How this was measured →