Callab AIYC P26 landing page report.
← Back to YC P26

Your landing page’s weakest score is Trust.

Fix Trust

Score over time

9080706050403020Retell AI 69 on Apr 3 (Wayback)Retell AI 71 on Jul 6 (Wayback)Retell AI 69 on Jul 23 (Wayback)Retell AI 67 on Aug 22 (Wayback)Retell AI 74 on Sep 20 (Live)Bland AI 69 on May 7 (Wayback)Bland AI 76 on May 19 (Wayback)Bland AI 75 on May 30 (Wayback)Bland AI 74 on Jun 22 (Wayback)Bland AI 75 on Jul 23 (Wayback)Bland AI 74 on Aug 23 (Wayback)Bland AI 76 on Sep 20 (Live)Vapi 78 on Sep 20 (Live)PolyAI 71 on Jul 15 (Wayback)PolyAI 70 on Aug 1 (Wayback)PolyAI 69 on Sep 18 (Wayback)PolyAI 70 on Sep 20 (Live)Sierra 61 on May 22 (Wayback)Sierra 63 on Jun 14 (Wayback)Sierra 65 on Jun 29 (Wayback)Sierra 64 on Jul 7 (Wayback)Sierra 63 on Jul 23 (Wayback)Sierra 62 on Aug 21 (Wayback)Sierra 62 on Sep 20 (Live)Callab AI 35 on May 12 (Wayback)Callab AI 66 on Jun 11 (Wayback)Callab AI 67 on Jul 22 (Wayback)Callab AI 66 on Sep 9 (Wayback)Callab AI 65 on Sep 20 (Live)May 12Jun 11Jul 22Sep 9Sep 20
Past reportsShow past reportsHide past reports
  1. Sep 20, 202665LiveOverall −1 · Mobile web −18 · Trust +6Viewing
  2. Sep 9, 202666Overall −1 · CTA −2 · Trust −2View →
  3. Jul 22, 202667Overall +1 · Trust +4 · Information hierarchy −2View →
  4. Jun 11, 202666Overall +31 · Value props +53 · Mobile web +46View →
  5. May 12, 202635First tracked report — strongest CTA 52, weakest Value props 15View →

Trust

52Fair

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

Callab AI
Retell AI
Bland AI
Vapi
PolyAI
Trust read
Callab AI"Backed by Y Combinator" badge above the hero headline
Retell AIG2 4.8-star rating badge above the subheadline
Bland AI"672,759,648 calls resolved to date" counter beneath the Book a call CTA
VapiRing testimonial: "We went from zero to production in two weeks, and 100% of our inbound volume now runs through Vapi" b
PolyAICustomer logo strip (Mattel, Office Depot, Brightree, AdaptHealth, Whitbread)
SierraSierra Agent chat demo resolving "I don't recognize this $95 charge" and booking "Appointment booked"

Mobile web

58Fair

The phone experience as a first-class citizen.

Mobile web annotations on the mobile capture1
  1. Headline wraps awkwardly — "Callab AI's contact center, now agentic." breaks into four lines with uneven ragging, slowing the read of the one value statement.

CTA

68Fair

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

Callab AI
Vapiin-product action
Retell AI
PolyAI

Problems

  • high-commitment sales-call feel
  • instant product demo demoted
  • no payoff beyond a meeting

Value props

68Fair

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

Callab AI’s headline sells#1 AI-voice agents with live human supervisionWorks with your existing PBX, SBC, and contact center infrastructure out of the box. No migration needed.

Working

  • Names real differentiator: human supervision
  • Subhead kills migration objection
  • PBX/SBC nouns speak buyer's language

Could improve

  • Unsubstantiated '#1' claim
  • No numbers or quantified outcome
  • Hero image decorates, shows no product

Information hierarchy

78Fair

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

Information hierarchy annotations on the desktop capture12
  1. Duplicate Book a demo — Nav button repeats the hero CTA at equal dark weight, splitting attention before the headline is read.
  2. Try agent demo button — Styled at near-identical size and shape as the primary CTA, making the fold's one action ambiguous.

Competitors

inferred from product, audience, and value prop