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Nessie homepage check

Checked October 28, 2026 · Fall 2025 · nessielabs.com

95out of 100 · Good · #92 of 378

Nessie (The shared context layer for recursive companies) scored 95 out of 100 on our homepage check, #92 of 378 YC startups and #11 of 39 in Fall 2025. It passed 9 of 10 checks. The biggest problem: loaded in 19.1s on desktop and 15.9s on a phone.

Nessie home page on a phone
Nessie on a 390px phone, October 28, 2026. Outlined: “Book a demo”, the button we tested.
  • Pass
    A sign-up, demo or get-started button on the first phone screen“Book a demo” is on the first screen.67% of YC startups pass this.
  • Pass
    The main button does something when tapped“Book a Demo” opens https://cal.com/team/nessie/nessie-demo.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 phone44px 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 pages80 internal links checked.97% of YC startups pass this.
  • Pass
    Everything that looks clickable respondsClickable things on 3 pages responded.90% of YC startups pass this.
  • Fail
    Loads in under 4 seconds on desktop and 6 on a phone (−5 points)Loaded in 19.1s on desktop and 15.9s 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 Nessie compares

Nessie is the outlined dot. The top row is all 378 YC startups we checked; the bottom row is Fall 2025.

Score
All startups378 sites
Nessie: 95/100
Nessie: 95/100

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

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Other Fall 2025 startups with similar scores

← #92 NebuSec · #92 Nimbic AI → · 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.