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Topological homepage check

Checked October 28, 2026 · Summer 2025 · topological.com

75out of 100 · Fair · #322 of 378

Topological (Physics-based foundation models for CAD optimization) scored 75 out of 100 on our homepage check, #322 of 378 YC startups and #38 of 47 in Summer 2025. It passed 8 of 10 checks. The biggest problem: “Book a meeting with us >” is 1,444px down the page on a phone, below the first screen.

Topological home page on a phone
Topological on a 390px phone, October 28, 2026. Outlined: “Book a meeting with us >”, the button we tested.
  • Fail
    A sign-up, demo or get-started button on the first phone screen (−20 points)“Book a meeting with us >” is 1,444px down the page on a phone, below the first screen.67% of YC startups pass this.
  • Pass
    The main button does something when tapped“Book a meeting with us >” opens https://calendly.com/topological.99% of YC startups pass this.
  • Pass
    Nothing covers the main buttonNothing sits on top of it.96% of YC startups pass this.
  • Fail
    The main button is at least 44px tall on a phone (−5 points)"Book a meeting with us >" is 21px tall on mobile (under 44px is easy to miss).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 pages0 internal links checked.97% of YC startups pass this.
  • Pass
    Everything that looks clickable respondsClickable things on 1 page responded.90% of YC startups pass this.
  • Pass
    Loads in under 4 seconds on desktop and 6 on a phoneLoaded in 1.1s on desktop and 1.0s 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 Topological compares

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

Score
All startups378 sites
Topological: 75/100
Topological: 75/100
Summer 202547 sites
Altur: 100/100BootLoop: 100/100Cyberdesk: 100/100Freya: 100/100Kestroll: 100/100Nixo: 100/100Pingo: 100/100ProcIndex: 100/100Relling: 100/100Risely AI: 100/100Synthetic Society: 100/100The Prompting Company: 100/100truthsystems: 100/100Bitrig: 95/100Cactus Compute: 95/100F2: 95/100KERNEL: 95/100Lanesurf: 95/100Paloma: 95/100RealRoots: 95/100Sapien: 95/100Vulcan Technologies: 95/100burnt: 90/100Frizzle: 90/100Omnara: 90/100Preseen: 90/100Rebulk: 90/100Embedder: 85/100args: 80/100Blue: 80/100Dedalus Labs: 80/100Finto: 80/100Lotas: 80/100Motives: 80/100Panels: 80/100Proliferate: 80/100Veritus: 80/100AgentMail: 75/100Floot: 75/100Juxta: 75/100Lark: 75/100Monarcha: 75/100TraceRoot.AI: 75/100Notte: 70/100Pangolin: 70/100Solva: 70/100Topological: 75/100
Altur: 100/100BootLoop: 100/100Cyberdesk: 100/100Freya: 100/100Kestroll: 100/100Nixo: 100/100Pingo: 100/100ProcIndex: 100/100Relling: 100/100Risely AI: 100/100Synthetic Society: 100/100The Prompting Company: 100/100truthsystems: 100/100Bitrig: 95/100Cactus Compute: 95/100F2: 95/100KERNEL: 95/100Lanesurf: 95/100Paloma: 95/100RealRoots: 95/100Sapien: 95/100Vulcan Technologies: 95/100burnt: 90/100Frizzle: 90/100Omnara: 90/100Preseen: 90/100Rebulk: 90/100Embedder: 85/100args: 80/100Blue: 80/100Dedalus Labs: 80/100Finto: 80/100Lotas: 80/100Motives: 80/100Panels: 80/100Proliferate: 80/100Veritus: 80/100AgentMail: 75/100Floot: 75/100Juxta: 75/100Lark: 75/100Monarcha: 75/100TraceRoot.AI: 75/100Notte: 70/100Pangolin: 70/100Solva: 70/100Topological: 75/100

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 Summer 2025 startups with similar scores

← #322 Tilion · #322 TraceRoot.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.