# CoArena Landing Page Growth Score | YC S26 | Lazyweb

Lazyweb publishes a public search API over its indexed pages; the guide is at https://www.lazyweb.com/agent-access.

Source: https://www.lazyweb.com/yc-s26/coarena
Source observed: 2026-10-08T03:14:56.576Z
Last checked: 2026-10-17T09:21:45.669+00:00
Indexed: 2026-10-08T05:40:55.359+00:00

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# CoArena Landing Page Growth Score

We assess the landing page at [http://coarena.ai/](http://coarena.ai/) in our YC S26 Growth Score report. The report identifies **Trust** as the weakest category.

## Overall score and ranking

- **Growth score:** 67/100
- **Updated:** Sep 20, 2026
- **Weakest category:** Trust, scored 48

### How CoArena ranks

1. [Design Arena — 70](https://www.lazyweb.com/growth-score/site/designarena.ai)
2. CoArena — 67
3. [Chatbot Arena (LMArena) — 66](https://www.lazyweb.com/growth-score/site/lmarena.ai)
4. [WebDev Arena — 62](https://www.lazyweb.com/growth-score/site/web.lmarena.ai)

[Fix Trust](https://www.lazyweb.com/plans/checkout?plan=individual&source=growth_score_feature_build_fixes)

## Category scores

- [Trust — 48](https://www.lazyweb.com/yc-s26/coarena#gs-trust)
- [Value props — 58](https://www.lazyweb.com/yc-s26/coarena#gs-value_props)
- [Information hierarchy — 72](https://www.lazyweb.com/yc-s26/coarena#gs-information_hierarchy)
- [CTA — 78](https://www.lazyweb.com/yc-s26/coarena#gs-cta)
- [Mobile web — 78](https://www.lazyweb.com/yc-s26/coarena#gs-mobile_web)

## Score over time

The report lists these past reports:

1. **Sep 20, 2026 — 67:** Live; overall +1, mobile web +8, value props −5.
2. [Aug 15, 2026 — 66](https://www.lazyweb.com/growth-score/history/2026-08-15): first tracked report; strongest Information hierarchy 76, weakest Trust 44.

## Trust — 48, Poor

Trust measures proof that the product is real, competent, and safe to try.

![CoArena trust comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/coarena.ai.jpg?v=2026-09-20T07%3A04%3A05.005%2B00%3A00)

The comparison identifies these trust signals:

| Product | Trust read |
| --- | --- |
| CoArena | “Backed by Y Combinator” badge above the headline |
| Chatbot Arena (LMArena) | Live “Ask anything…” prompt box with Battle/Auto mode controls showing real product UI |
| WebDev Arena | Implicit context may benefit from pre-existing familiarity among its target audience. |
| Design Arena | “6.6M+ users” count beneath the headline |

### Trust ranking

1. [Design Arena — 62](https://www.lazyweb.com/growth-score/site/designarena.ai)
2. [Chatbot Arena (LMArena) — 52](https://www.lazyweb.com/growth-score/site/lmarena.ai)
3. CoArena — 48
4. [WebDev Arena — 42](https://www.lazyweb.com/growth-score/site/web.lmarena.ai)

[Build proof section](https://www.lazyweb.com/backlog?site=coarena.ai#opt-trust-signals) to choose proof signals and receive copy and placement for a stronger trust section.

## Value props — 58, Fair

This section evaluates whether the title, subtitle, and hero sell the product’s true value. The headline is described as underselling the product. The page uses the promise **“Watch two computer-use agents work on your fact-check.”**

### Working

- Literal, product-specific verb: “Watch two agents.”
- The placeholder prompt is a vivid concrete example.
- A rotating task word shows breadth of use cases.

### Could improve

- No subhead explains why two agents compete.
- There are zero numbers or proof points in the fold.
- The desktop rotator truncates mid-word: “data pu.”

### Value-proposition ranking

1. CoArena — 58
2. [Design Arena — 56](https://www.lazyweb.com/growth-score/site/designarena.ai)
3. [Chatbot Arena (LMArena) — 44](https://www.lazyweb.com/growth-score/site/lmarena.ai)
4. [WebDev Arena — 42](https://www.lazyweb.com/growth-score/site/web.lmarena.ai)

## Information hierarchy — 72, Fair

![Information hierarchy annotations on the desktop capture](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/coarena.ai.jpg?v=2026-09-20T07%3A04%3A05.005%2B00%3A00)

1. **Animated rotating headline word:** The cycling word (“data pu…” caught mid-transition) can make the core promise unreadable and momentarily garbled.
2. **Header navigation:** Leaderboard, Benchmarks, Blog, and Sign in provide four exits before the visitor reaches the Send prompt.
3. **Send button:** Its small footprint in the composer corner makes it read as a form control rather than the primary action.
4. **Terms consent line:** Two underlined legal links sit directly below the CTA, adding exits and legal friction at the decision point.

[View layout plan](https://www.lazyweb.com/backlog?site=coarena.ai#opt-information-hierarchy) to turn these callouts into a sequenced page plan.

## CTA — 78, Fair

![CoArena CTA comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/coarena.ai.jpg?v=2026-09-20T07%3A04%3A05.005%2B00%3A00)

### Problems

- “Send” promises no payoff.
- The placeholder runs 20 words.
- There is no free/no-signup reassurance.

### CTA ranking

1. [Chatbot Arena (LMArena) — 82](https://www.lazyweb.com/growth-score/site/lmarena.ai)
2. [WebDev Arena — 82](https://www.lazyweb.com/growth-score/site/web.lmarena.ai)
3. [Design Arena — 82](https://www.lazyweb.com/growth-score/site/designarena.ai)
4. CoArena — 78

[Rewrite this CTA](https://www.lazyweb.com/backlog?site=coarena.ai#opt-cta-writing) to generate primary and secondary options grounded in CoArena’s offer and visitor objections.

## Mobile web — 78, Fair

![Mobile web annotations on the mobile capture](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/coarena.ai-mobile.jpg?v=2026-09-20T07%3A04%3A05.005%2B00%3A00)

1. **Uncollapsed navigation row:** Leaderboard, Benchmarks, and Sign in are crammed across the top instead of using a hamburger; Blog is silently dropped.
2. **Three-line legal disclaimer:** The dense Terms/Privacy paragraph sits directly below Send and adds visual noise around the primary action.

[View mobile fixes](https://www.lazyweb.com/backlog?site=coarena.ai#opt-mobile-web) to convert these findings into a prioritized implementation checklist.

## Competitors

The report infers competitors from product, audience, and value proposition:

1. [Design Arena — designarena.ai — 70](https://www.lazyweb.com/growth-score/site/designarena.ai)
2. CoArena — 67
3. [Chatbot Arena (LMArena) — lmarena.ai — 66](https://www.lazyweb.com/growth-score/site/lmarena.ai)
4. [WebDev Arena — web.lmarena.ai — 62](https://www.lazyweb.com/growth-score/site/web.lmarena.ai)

[← Back to YC S26](https://www.lazyweb.com/yc-s26)

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