Your landing page’s weakest score is Mobile web.
How Cesium ranks
Mobile web
56FairThe phone experience as a first-class citizen.
1234- Collapsed mobile header — The desktop "SIGN UP FREE" CTA was dropped in the collapse, leaving zero primary action in the entire mobile fold.
- Accessibility bubble — Floats directly over the Google logo, truncating it to "oogle" and undermining the trust row.
- Shield badge overlay — Overlaps the "Cesium at SIGGRAPH 2026" card heading, clipping the first character of both lines.
- Empty search pill — A blank white input sits beside a separate search icon, looking like a broken duplicate control in the header.
CTA
62FairCopy, size, verb, cost-feel — does the primary CTA earn the click?



Problems
- no CTA in hero, nav-corner only
- no CTA visible on mobile fold
- small footprint vs headline
- 'sign up' signals a form, not value
Information hierarchy
63FairDoes the design help or inhibit what the page is trying to say?

What works
What to improve
Value props
63FairTitle, subtitle, hero — do they sell the product's true value?
The Platform for 3D Geospatial
Cesium is the open platform for software applications designed to unleash the power of 3D data.
Working
Could improve
Trust
78FairProof that the product is real, competent, and safe to try.

How Cesium compares
Trust read
