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Stillwind homepage check

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

95out of 100 · Good · #92 of 378

Stillwind (PCB component librarian) scored 95 out of 100 on our homepage check, #92 of 378 YC startups and #8 of 45 in Winter 2025. It passed 6 of 7 checks we could run. The biggest problem: the site's own code threw an error: Failed to fetch

Stillwind home page on a phone
Stillwind on a 390px phone, October 28, 2026. Outlined: “Free trial”, the button we tested.
  • Not tested
    A sign-up, demo or get-started button on the first phone screenNot scored: the button we found on a phone was inside a closed menu.67% of YC startups pass this.
  • Pass
    The main button does something when tapped“Free trial” opens https://forms.stillwind.ai/.99% of YC startups pass this.
  • Not tested
    Nothing covers the main buttonNot scored: the button we found sat inside a closed menu.96% of YC startups pass this.
  • Not tested
    The main button is at least 44px tall on a phoneNot tested: no clear main button on the phone version.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.
  • Fail
    No JavaScript errors from the site's own code (−5 points)The site's own code threw an error: Failed to fetch95% of YC startups pass this.
  • Pass
    No broken links to the site's own pages15 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.
  • Pass
    Loads in under 4 seconds on desktop and 6 on a phoneLoaded in 2.8s on desktop and 3.4s 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 Stillwind compares

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

Score
All startups378 sites
Stillwind: 95/100
Stillwind: 95/100
Winter 202545 sites
Confident AI: 100/100CopyCat AI: 100/100Dexto: 100/100Lucidic AI: 100/100Roark: 100/100Stamp: 100/100Wildcard: 100/100Candor: 95/100Ergo: 95/100SalesPatriot: 95/100Sennu AI: 95/100Solidroad: 95/100Thirdlayer: 95/100Trata: 95/100Trava: 95/100Verbiflow: 95/100assistant-ui: 90/100Dalus: 90/100Leaping AI: 90/100Miyagi Labs: 90/100Rally: 90/100Subtrace: 90/100Finbar: 85/100awen: 80/100Cedar: 80/100Liquid Compute: 80/100Lucid: 80/100Mastra: 80/100Mercura: 80/100Mundo AI: 80/100Nitrode: 80/100TamLabs: 80/100Adam: 75/100Axiom: 75/100Bluebook: 75/100G LNK: 75/100Harper: 75/100Caseflood.ai: 70/100HUD: 70/100Macadamia: 70/100Scout: 70/100Trim: 70/100Invo: 65/100Karoo: 55/100Stillwind: 95/100
Confident AI: 100/100CopyCat AI: 100/100Dexto: 100/100Lucidic AI: 100/100Roark: 100/100Stamp: 100/100Wildcard: 100/100Candor: 95/100Ergo: 95/100SalesPatriot: 95/100Sennu AI: 95/100Solidroad: 95/100Thirdlayer: 95/100Trata: 95/100Trava: 95/100Verbiflow: 95/100assistant-ui: 90/100Dalus: 90/100Leaping AI: 90/100Miyagi Labs: 90/100Rally: 90/100Subtrace: 90/100Finbar: 85/100awen: 80/100Cedar: 80/100Liquid Compute: 80/100Lucid: 80/100Mastra: 80/100Mercura: 80/100Mundo AI: 80/100Nitrode: 80/100TamLabs: 80/100Adam: 75/100Axiom: 75/100Bluebook: 75/100G LNK: 75/100Harper: 75/100Caseflood.ai: 70/100HUD: 70/100Macadamia: 70/100Scout: 70/100Trim: 70/100Invo: 65/100Karoo: 55/100Stillwind: 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 Winter 2025 startups with similar scores

← #92 Solidroad · #92 Superserve → · 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.