# b12 Labs Landing Page Growth Score — YC S25

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-s25/b12-labs
Source observed: 2026-10-03T15:49:05.011Z
Last checked: 2026-10-20T07:56:17.709+00:00
Indexed: 2026-10-03T18:21:08.047+00:00

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# b12 Labs Landing Page Growth Score

We assessed the landing page at [b12-labs.com](https://b12-labs.com/) as part of Lazyweb’s YC S25 Growth Score. The report evaluates how effectively the page communicates b12 Labs’ product and converts visitors.

[← Back to YC S25](https://www.lazyweb.com/yc-s25)

## Overall result

- **Growth score:** **67/100**, updated **September 22, 2026**
- **Weakest category:** **Trust**, scored **48/100** and rated **Poor**
- **Recommended action:** [Fix Trust](https://www.lazyweb.com/plans/checkout?plan=individual&source=growth_score_feature_build_fixes)

### Category scores

| Category | Score | Rating or focus |
| --- | ---: | --- |
| Trust | 48 | Poor; proof that the product is real, competent, and safe to try |
| CTA | 63 | Fair; copy, size, verb, and cost-feel of the primary CTA |
| Value props | 72 | Fair; whether the title, subtitle, and hero sell the product’s value |
| Information hierarchy | 76 | Fair; whether the design supports the page’s message |
| Mobile web | 76 | Fair; the phone experience as a first-class citizen |

## Score over time

1. **September 22, 2026 — 67:** live report; overall **+33**, Value props **+60**, Mobile web **+46**.
2. [April 8, 2026 — 34: first tracked report](https://www.lazyweb.com/growth-score/history/2026-04-08), with strongest CTA **52** and weakest Value props **12**.

## Trust — 48/100, Poor

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

![b12 Labs trust comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/b12-labs.com.jpg?v=2026-09-22T18%3A32%3A55.483%2B00%3A00)

Our visible trust signal is a **“BACKED BY Y COMBINATOR”** badge above the hero headline. In the comparison shown in the report, Chemify has a real photograph of its automated robotic chemistry lab with a video play button. No visible trust signal was identified for Synthace, Iktos, Kebotix, or Arctoris.

### Trust ranking

| Rank | Company | Trust score |
| ---: | --- | ---: |
| 1 | Chemify | 58 |
| 2 | b12 Labs | 48 |
| 3 | Synthace | 44 |
| 4 | Iktos | 44 |
| 5 | Arctoris | 42 |
| 6 | Kebotix | 38 |

[Build proof section](https://www.lazyweb.com/backlog?site=b12-labs.com#opt-trust-signals) — choose proof signals and get copy and placement for a stronger trust section.

## CTA — 63/100, Fair

This category evaluates the primary CTA’s copy, size, verb, and cost-feel.

![b12 Labs and Synthace CTA comparison](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/b12-labs.com.jpg?v=2026-09-22T18%3A32%3A55.483%2B00%3A00)

The report identifies three CTA problems:

- No visual dominance over the secondary CTA.
- The label is generic and names no payoff.
- There is no header echo or specificity.

### CTA ranking

| Rank | Company | CTA score |
| ---: | --- | ---: |
| 1 | Synthace | 72 |
| 2 | b12 Labs | 63 |
| 3 | Arctoris | 62 |
| 4 | Chemify | 58 |
| 5 | Iktos | 58 |
| 6 | Kebotix | 52 |

[Rewrite this CTA](https://www.lazyweb.com/backlog?site=b12-labs.com#opt-cta-writing) — generate primary and secondary CTA options grounded in our offer and visitor objections.

## Value props — 72/100, Fair

The report evaluates whether our title, subtitle, and hero sell the product’s true value.

### Our headline and subhead

**“AI-Powered Chemical Synthesis”**

> “AI that designs, optimizes, and runs chemical reactions. Accelerating pharma R&D from years to months.”

The report says this headline undersells the offer, while identifying the following strengths:

- **“Years to months”** is a vivid outcome.
- The subhead names what the AI actually does.
- The YC badge adds credibility.

The report identifies these opportunities:

- The H1 is a generic category label.
- The hero image is blurry decoration.
- There are no hard numbers or customer proof.

### Value-proposition ranking

| Rank | Company | Value-proposition score |
| ---: | --- | ---: |
| 1 | b12 Labs | 72 |
| 2 | Synthace | 68 |
| 3 | Chemify | 62 |
| 4 | Iktos | 58 |
| 5 | Arctoris | 54 |
| 6 | Kebotix | 38 |

## Information hierarchy — 76/100, Fair

![Information hierarchy annotations on the desktop capture](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/b12-labs.com.jpg?v=2026-09-22T18%3A32%3A55.483%2B00%3A00)

The report highlights four desktop hierarchy issues:

1. **Get Started button:** outlined, low-contrast styling matches **Request a Demo**, so no primary action wins the scan.
2. **Blurred hero illustration:** the lab-glassware render is out of focus and illegible, adding noise instead of communicating the product.
3. **Five-link navigation row:** Planning through Team offers five equal-weight exits before the conversion action.
4. **Duplicate navigation Get Started:** a second same-styled Get Started splits attention with the hero CTA instead of reinforcing it.

[View layout plan](https://www.lazyweb.com/backlog?site=b12-labs.com#opt-information-hierarchy) — turn these callouts into a sequenced page plan: keep, move, merge, or remove.

## Mobile web — 76/100, Fair

The mobile assessment focuses on making the phone experience a first-class citizen.

![Mobile web annotations on the mobile capture](https://zlfyzdmohcskkucuunmk.supabase.co/storage/v1/object/public/sites/growth-score/site/b12-labs.com-mobile.jpg?v=2026-09-22T18%3A32%3A55.483%2B00%3A00)

1. **Side-by-side hero CTAs:** two half-width buttons split the tap target; the primary **Get Started** should be full-bleed and stacked.
2. **Duplicate header CTA:** a second **Get Started** in the navigation competes with the hero button for the same tap.
3. **Faint animation caption:** **“What if discovery was smarter.”** renders in low-contrast gray, reading like a broken or half-loaded element.

[View mobile fixes](https://www.lazyweb.com/backlog?site=b12-labs.com#opt-mobile-web) — convert the mobile findings into a prioritized implementation checklist.

## Competitors

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

| Rank | Company | Website | Growth score |
| ---: | --- | --- | ---: |
| 1 | [Synthace](https://www.lazyweb.com/growth-score/site/synthace.com) | synthace.com | 69 |
| 2 | b12 Labs | b12-labs.com | 67 |
| 3 | [Chemify](https://www.lazyweb.com/growth-score/site/chemify.io) | chemify.io | 67 |
| 4 | [Arctoris](https://www.lazyweb.com/growth-score/site/arctoris.com) | arctoris.com | 58 |
| 5 | [Iktos](https://www.lazyweb.com/growth-score/site/iktos.ai) | iktos.ai | 57 |
| 6 | [Kebotix](https://www.lazyweb.com/growth-score/site/kebotix.com) | kebotix.com | 49 |

## Related Lazyweb actions

- [Growth Score](https://www.lazyweb.com/growth-score)
- [Optimize](https://www.lazyweb.com/optimize)
- [Backlog](https://www.lazyweb.com/backlog)
- [Growth Reports](https://www.lazyweb.com/reports)
- [Experiments](https://www.lazyweb.com/experiments)
- [Flows](https://www.lazyweb.com/flows)
- [Screens](https://www.lazyweb.com/screens)

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