UserProof / YC homepage check / Sazabi
Sazabi homepage check
Checked October 28, 2026 · Spring 2026 · sazabi.com
Sazabi (The AI-native observability platform for fast-moving engineering teams) scored 90 out of 100 on our homepage check, #192 of 378 YC startups and #33 of 54 in Spring 2026. It passed 8 of 10 checks. The biggest problem: the site's own code threw an error: Minified React error #418; visit https://react.dev/errors/418?args[]=HTML&args[]= for the full message or use the non-minified dev environme

- PassA sign-up, demo or get-started button on the first phone screen“GET STARTED” is on the first screen.67% of YC startups pass this.
- PassThe main button does something when tapped“GET STARTED” opens https://app.sazabi.com/sign-up.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 phone44px 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.
- FailNo JavaScript errors from the site's own code (−5 points)The site's own code threw an error: Minified React error #418; visit https://react.dev/errors/418?args[]=HTML&args[]= for the full message or use the non-minified dev environme95% of YC startups pass this.
- PassNo broken links to the site's own pages17 internal links checked.97% of YC startups pass this.
- PassEverything that looks clickable respondsClickable things on 3 pages responded.90% of YC startups pass this.
- FailLoads in under 4 seconds on desktop and 6 on a phone (−5 points)Loaded in 8.6s on desktop and 3.8s 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 Sazabi compares
Sazabi is the outlined dot. The top row is all 378 YC startups we checked; the bottom row is Spring 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.
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Other Spring 2026 startups with similar scores
← #192 Replicas · #192 Semble → · 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.