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Subtrace homepage check

Checked October 28, 2026 · Winter 2025 · subtrace.dev

90out of 100 · Good · #192 of 378

Subtrace (Zero code network tracer) scored 90 out of 100 on our homepage check, #192 of 378 YC startups and #18 of 45 in Winter 2025. It passed 8 of 10 checks. The biggest problem: "Try for free" is 20px tall on mobile (under 44px is easy to miss).

Subtrace home page on a phone
Subtrace on a 390px phone, October 28, 2026. Outlined: “Try for free”, the button we tested.
  • Pass
    A sign-up, demo or get-started button on the first phone screen“Try for free” is on the first screen.67% of YC startups pass this.
  • Pass
    The main button does something when tapped“Try for free” opens https://subtrace.dev/login.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)"Try for free" is 20px 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 pages18 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 2.3s on desktop and 3.1s on a phone.75% of YC startups pass this.
  • Fail
    Images and files load (−5 points)Https://subtrace.dev/api/GetSelf returns 401.92% of YC startups pass this.

How Subtrace compares

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

Score
All startups378 sites
Subtrace: 90/100
Subtrace: 90/100
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: 95/100Stillwind: 95/100Thirdlayer: 95/100Trata: 95/100Trava: 95/100Verbiflow: 95/100assistant-ui: 90/100Dalus: 90/100Leaping AI: 90/100Miyagi Labs: 90/100Rally: 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: 55/100Subtrace: 90/100
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: 95/100Stillwind: 95/100Thirdlayer: 95/100Trata: 95/100Trava: 95/100Verbiflow: 95/100assistant-ui: 90/100Dalus: 90/100Leaping AI: 90/100Miyagi Labs: 90/100Rally: 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: 55/100Subtrace: 90/100

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

← #192 Spine · #192 Wideframe → · 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.