UserProof / YC homepage check / Sennu AI

Sennu AI homepage check

Checked October 28, 2026 · Winter 2025 · sennu.ai

Sennu AI (We turn traditional companies into AI companies) scored 95 out of 100 on our homepage check, #92 of 378 YC startups and #8 of 45 in Winter 2025. It passed 9 of 10 checks. The biggest problem: 1 thing that look clickable do nothing, e.g. “Services”.

• Pass
  A sign-up, demo or get-started button on the first phone screen“Book an AI audit” is on the first screen.67% of YC startups pass this.
• Pass
  The main button does something when tapped“Book an AI audit” opens https://calendly.com/d/cxvd-phq-ryc.99% of YC startups pass this.
• Pass
  Nothing covers the main buttonNothing sits on top of it.96% of YC startups pass this.
• Pass
  The main button is at least 44px tall on a phone53px tall on a phone.65% of YC startups pass this.
• Pass
  The page fits a phone screenNo sideways scrolling on a 390px-wide phone.100% of YC startups pass this.
• Pass
  No JavaScript errors from the site's own codeNone seen while loading and tapping the main button.95% of YC startups pass this.
• Pass
  No broken links to the site's own pages13 internal links checked.97% of YC startups pass this.
• Fail
  Everything that looks clickable responds (−5 points)1 thing that look clickable do nothing, e.g. “Services”.90% of YC startups pass this.
• Pass
  Loads in under 4 seconds on desktop and 6 on a phoneLoaded in 0.9s on desktop and 0.6s on a phone.75% of YC startups pass this.
• Pass
  Images and files loadEverything we requested from the site loaded.92% of YC startups pass this.

How Sennu AI compares

Sennu AI is the outlined dot. The top row is all 378 YC startups we checked; the bottom row is Winter 2025.

Good (90+)Fair (75-89)Needs work (0-74)Each dot is one startup. Tap a dot to see its page.

Is this your startup?

A scan shows what a first visit looks like. Your real visitors show the rest: where they tap, what they skip, where they leave. UserProof records them and gives Claude Code the one fix that costs you the most signups, with the file and line. Free for 3 sites.

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Other Winter 2025 startups with similar scores

• Candor · 95/100
• Ergo · 95/100
• SalesPatriot · 95/100
• Solidroad · 95/100
• Stillwind · 95/100
• Thirdlayer · 95/100

← #92 Sapien · #92 shortkit → · All 378 scores

How we checked

We loaded the home page in Chromium as a 390px phone and a 1366px desktop, found the main button by its words (sign up, book a demo, get started and similar), tapped it once, and checked up to 3 pages for broken links and dead taps. Nothing was submitted. Each failed check costs the points shown. Full method.