UserProof / YC homepage check / Rindler
Rindler homepage check
Checked October 28, 2026 · Summer 2026 · maxxwell.dev
Rindler (The IDE for Tokenmaxxers) scored 100 out of 100 on our homepage check, #1 of 378 YC startups and #1 of 46 in Summer 2026. It passed 10 of 10 checks.

- PassA sign-up, demo or get-started button on the first phone screen“Download v0.1.199” is on the first screen.67% of YC startups pass this.
- PassThe main button does something when tapped“Download v0.1.199” opens https://maxxwell.dev/#download.99% of YC startups pass this.
- PassNothing covers the main buttonNothing sits on top of it.96% of YC startups pass this.
- PassThe main button is at least 44px tall on a phone42px tall on a phone.65% of YC startups pass this.
- PassThe page fits a phone screenNo sideways scrolling on a 390px-wide phone.100% of YC startups pass this.
- PassNo JavaScript errors from the site's own codeNone seen while loading and tapping the main button.95% of YC startups pass this.
- PassNo broken links to the site's own pages2 internal links checked.97% of YC startups pass this.
- PassEverything that looks clickable respondsClickable things on 2 pages responded.90% of YC startups pass this.
- PassLoads in under 4 seconds on desktop and 6 on a phoneLoaded in 1.7s on desktop and 2.5s on a phone.75% of YC startups pass this.
- PassImages and files loadEverything we requested from the site loaded.92% of YC startups pass this.
How Rindler compares
Rindler is the outlined dot. The top row is all 378 YC startups we checked; the bottom row is Summer 2026.
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.
Get the next report
We run this check every month on new YC companies. One email when the next report is out, nothing else.
Other Summer 2026 startups with similar scores
- Billow AI Labs · 100/100
- CueBench · 100/100
- Daqstra · 100/100
- Dream · 100/100
- HyperProbe · 100/100
- Lamb Labs · 100/100
← #1 Relling · #1 Risely 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.