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Petrarch homepage check

Checked October 28, 2026 · Summer 2026 · petrarch.co

80out of 100 · Fair · #250 of 378

Petrarch (Advancing model capabilities for critical infrastructure) scored 80 out of 100 on our homepage check, #250 of 378 YC startups and #31 of 46 in Summer 2026. It passed 8 of 10 checks. The biggest problem: “Request access” is covered by a cookie banner on a phone, so the first tap hits the banner instead.

Petrarch home page on a phone
Petrarch on a 390px phone, October 28, 2026. Outlined: “Request access”, the button we tested.
  • Pass
    A sign-up, demo or get-started button on the first phone screen“Request access” is on the first screen.67% of YC startups pass this.
  • Pass
    The main button does something when tapped“Request access” opens https://petrarch.co/contact.99% of YC startups pass this.
  • Fail
    Nothing covers the main button (−15 points)“Request access” is covered by a cookie banner on a phone, so the first tap hits the banner instead.96% of YC startups pass this.
  • Pass
    The main button is at least 44px tall on a phone48px tall on a phone.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 2.5s on desktop and 1.9s on a phone.75% of YC startups pass this.
  • Fail
    Images and files load (−5 points)Https://petrarch.co/contact returns 503.92% of YC startups pass this.

How Petrarch compares

Petrarch is the outlined dot. The top row is all 378 YC startups we checked; the bottom row is Summer 2026.

Score
All startups378 sites
Petrarch: 80/100
Petrarch: 80/100
Summer 202646 sites
Billow AI Labs: 100/100CueBench: 100/100Daqstra: 100/100Dream: 100/100HyperProbe: 100/100Lamb Labs: 100/100Moonshot: 100/100Orchestra: 100/100Palisade: 100/100Poth Labs: 100/100Rindler: 100/100Sidekick: 100/100Studio: 100/100Audun: 95/100Context.dev: 95/100Decawork: 95/100Dialogus: 95/100Glen: 95/100Hoplite: 95/100Magma: 95/100Marble: 95/100NebuSec: 95/100Snowstone: 95/100Tarifflo Inc.: 95/100Tokenless: 95/100Verdict Machine: 95/100Ekpa: 90/100Grocalo: 90/100Egoist Machines: 85/100TryNearby: 85/100Axelrod: 80/100Datoric: 80/100Litmus: 80/100Nex: 80/100Olam Labs: 80/100Palisade: 80/100Prodigy Research: 80/100Standard Machines: 80/100Tenor: 80/100Agentcard: 75/100DeepReach Inc.: 75/100Florin: 75/100Ooak Data: 75/100Waybill: 75/100Click: 70/100Petrarch: 80/100
Billow AI Labs: 100/100CueBench: 100/100Daqstra: 100/100Dream: 100/100HyperProbe: 100/100Lamb Labs: 100/100Moonshot: 100/100Orchestra: 100/100Palisade: 100/100Poth Labs: 100/100Rindler: 100/100Sidekick: 100/100Studio: 100/100Audun: 95/100Context.dev: 95/100Decawork: 95/100Dialogus: 95/100Glen: 95/100Hoplite: 95/100Magma: 95/100Marble: 95/100NebuSec: 95/100Snowstone: 95/100Tarifflo Inc.: 95/100Tokenless: 95/100Verdict Machine: 95/100Ekpa: 90/100Grocalo: 90/100Egoist Machines: 85/100TryNearby: 85/100Axelrod: 80/100Datoric: 80/100Litmus: 80/100Nex: 80/100Olam Labs: 80/100Palisade: 80/100Prodigy Research: 80/100Standard Machines: 80/100Tenor: 80/100Agentcard: 75/100DeepReach Inc.: 75/100Florin: 75/100Ooak Data: 75/100Waybill: 75/100Click: 70/100Petrarch: 80/100

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 2026 startups with similar scores

← #250 Paper Instruments · #250 Prodigy Research → · 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.