DomeYC F25 landing page report.
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Score over time

80706050403020The Tie (Prediction Markets Data) 60 on Sep 22 (Live)Polymarket CLOB API (Polymarket Developers) 72 on Apr 6 (Wayback)Polymarket CLOB API (Polymarket Developers) 68 on Apr 21 (Wayback)Polymarket CLOB API (Polymarket Developers) 68 on May 4 (Wayback)Polymarket CLOB API (Polymarket Developers) 69 on Jun 23 (Wayback)Polymarket CLOB API (Polymarket Developers) 68 on Sep 22 (Live)Kalshi API 60 on Sep 20 (Live)PredictIt API (via Predictit data) 28 on Jun 16 (Wayback)PredictIt API (via Predictit data) 30 on Aug 25 (Wayback)PredictIt API (via Predictit data) 60 on Sep 22 (Live)Dome 71 on Apr 19 (Wayback)Dome 73 on May 20 (Wayback)Dome 73 on Jun 19 (Wayback)Dome 70 on Aug 27 (Wayback)Dome 72 on Sep 22 (Live)Apr 19May 20Jun 19Aug 27Sep 22
Past reportsShow past reportsHide past reports
  1. Sep 22, 202672LiveOverall +2 · CTA +8 · Value props −6Viewing
  2. Aug 27, 202670Overall −3 · CTA −8 · Information hierarchy −6View →
  3. Jun 19, 202673CTA +4 · Mobile web −4View →
  4. May 20, 202673Overall +2 · CTA +4 · Mobile web +4View →
  5. Apr 19, 202671First tracked report — strongest Information hierarchy 78, weakest Trust 58View →

Trust

58Fair

Proof that the product is real, competent, and safe to try.

Dome
Kalshi API
The Tie (Prediction Markets Data)
PredictIt API (via Predictit data)
Trust read
Dome"F25 Y Combinator" badge above the headline
The Tie (Prediction Markets Data)"Trusted by Hundreds of Institutions and Digital Asset Firms" logo strip with Near, Nexo, Polkadot, Republic, Reserve
Polymarket CLOB API (Polymarket Developers)Tabbed live code sample (TypeScript/Python/API) showing @polymarket client usage
Kalshi APILive market card showing "$11,050,553 vol" with a real-time price chart for WAS Commanders vs DAL Cowboys
PredictIt API (via Predictit data)Live market chart "Will crypto regulation be enacted in 2026?" with real-time price history and 192-market listing

Value props

62Fair

Title, subtitle, hero — do they sell the product's true value?

Dome’s headline sellsAPIs for Prediction MarketsSupport for Polymarket Kalshi and more. Read the docs.

Working

  • Instantly clear category and audience
  • Names Polymarket and Kalshi by brand
  • YC badge adds credibility signal

Could improve

  • No concrete data types or outcomes named
  • Zero numbers (endpoints, latency, markets)
  • No code sample or product demo in fold

Information hierarchy

72Fair

Does the design help or inhibit what the page is trying to say?

Information hierarchy annotations on the desktop capture1234
  1. Announcement banner links — The 'Read more in our blog' link sits directly above the hero and pulls first-glance attention off the page before the CTA is seen.
  2. Oversized three-line headline — 'APIs for Prediction Markets' fills nearly half the fold, pushing the 'Sign Up for Free' CTA to the bottom edge of the scan path.
  3. Inline docs link — The 'docs' text link sits immediately above the primary CTA and offers an exit one line before the ask.
  4. Nav exit cluster — Blog, Docs, Contact, Join Discord and Log In present five same-weight exits before the visitor reaches the hero.

Mobile web

82Strong

The phone experience as a first-class citizen.

Mobile web annotations on the mobile capture1
  1. Two-line news banner — The 'Big news!' strip wraps awkwardly across two lines with no dismiss, taking a chunk of the fold before the hero.

CTA

84Strong

Copy, size, verb, cost-feel — does the primary CTA earn the click?

Dome

Problems

  • 'Sign Up' sells the form, not value
  • four words, past single fixation
  • no header echo of APIs/markets