improvement(landing): lighthouse performance and accessibility fixes

[waleedlatif1]

Summary

• Replace force-dynamic with ISR (revalidate = 3600) on landing page to reduce TTFB
• Remove priority from below-fold images (collaboration, features) to free bandwidth for LCP
• Add aria-label to icon-only submit button in footer CTA
• Add role="button", keyboard handlers, and ARIA attributes to access control panel toggles
• Increase text contrast ratios across enterprise section to meet WCAG AA
• Add DNS prefetch for analytics domain

Type of Change

• Bug fix
• Performance improvement

Testing

Tested manually

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Mar 30, 2026 5:15am

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PR Summary

Low Risk
Low risk mostly limited to landing-page rendering hints (ISR, image loading) and small accessibility/contrast tweaks; main risk is unintended caching or visual regressions on the marketing site.

Overview
Improves landing-page Lighthouse scores by switching the root page.tsx from force-dynamic rendering to ISR (revalidate = 3600) and removing priority from below-the-fold next/image assets in the Collaboration and Features sections.

Accessibility and readability tweaks include adding ARIA/keyboard support to Access Control toggles (via a shared FeatureToggleItem), adding an aria-label to the footer icon-only submit button, and increasing enterprise-section text contrast.

Minor performance hint: adds dns-prefetch for the OneDollarStats analytics asset domain in layout.tsx.

^{Written by Cursor Bugbot for commit ba2ccdd. Configure here.}

[greptile-apps]

Greptile Summary

This PR improves Lighthouse performance and WCAG accessibility scores for the landing page. Changes include: switching from force-dynamic to ISR (revalidate = 3600) to reduce TTFB, removing priority from two below-fold images to free LCP bandwidth, adding aria-label to the icon-only footer submit button, extracting a shared FeatureToggleItem component with full ARIA attributes and keyboard support, increasing text contrast ratios across the enterprise section, and adding a DNS prefetch hint for the analytics domain.

Key changes:

• page.tsx: force-dynamic → revalidate = 3600 — safe for this route since the page has only static metadata and a fully client-rendered Landing component
• access-control-panel.tsx: the previous thread's refactoring suggestion has been implemented; a shared FeatureToggleItem centralises ARIA and keyboard logic — one leftover redundant key prop remains inside the component body (P2 style)
• Contrast bumps (/30 → /55, /40 → /60, etc.) are applied consistently across access-control-panel, audit-log-preview, and enterprise to meet WCAG AA ratios

Confidence Score: 5/5

Safe to merge — all changes are targeted accessibility and performance improvements with no logic regressions.

The only finding is a P2 style issue (redundant key prop inside the extracted component body). All other changes are straightforward and well-scoped: ISR is safe for this static landing page, priority removals are correct for below-fold images, ARIA improvements are accurate, and contrast changes are consistent. No P0 or P1 issues found.

No files require special attention.

Important Files Changed

Filename	Overview
apps/sim/app/page.tsx	Switches landing page from force-dynamic to ISR with a 1-hour revalidation interval. The page contains only static metadata and renders a fully client-side Landing component, so ISR is safe here.
apps/sim/app/(home)/components/enterprise/components/access-control-panel.tsx	Extracts a shared FeatureToggleItem component with correct ARIA attributes (role='button', aria-pressed, aria-label), keyboard handler, and contrast improvements; one redundant key prop remains inside the component body.
apps/sim/app/(home)/components/enterprise/enterprise.tsx	Bumps multiple color-mix and raw-opacity values throughout the enterprise section (trust strip, marquee tags, paragraph text) from ~30–40% to 55–60%+ to improve text contrast; also increases hover states proportionally.
apps/sim/app/(home)/components/footer/footer-cta.tsx	Adds aria-label='Submit message' to the icon-only submit button, fixing a missing accessible name for screen readers.
apps/sim/app/layout.tsx	Adds a dns-prefetch hint for the analytics asset domain, reducing DNS lookup latency for the deferred analytics script.
apps/sim/app/(home)/components/collaboration/collaboration.tsx	Removes priority from a below-fold collaboration image, correctly freeing bandwidth for the LCP element above the fold.
apps/sim/app/(home)/components/features/features.tsx	Removes priority from the features section image (below-fold), consistent with the collaboration image change.
apps/sim/app/(home)/components/enterprise/components/audit-log-preview.tsx	Increases text opacity on time and separator spans from /30 and /40 to /55 and /60 to improve WCAG AA contrast ratios. No logic changes.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Browser Request - Landing Page] --> B{Cached?}
    B -- Yes, within 1h --> C[Serve Static HTML\nrevalidate=3600]
    B -- No / Stale --> D[Next.js ISR Re-render]
    D --> C
    C --> E[Layout - layout.tsx]
    E --> F[dns-prefetch\nassets.onedollarstats.com]
    E --> G[Landing Component]
    G --> H[Hero - priority images]
    G --> I[Collaboration - no priority]
    G --> J[Features - no priority]
    G --> K[Enterprise Section]
    G --> L[Footer CTA\naria-label on submit]
    K --> M[AuditLogPreview\ncontrast improved]
    K --> N[AccessControlPanel]
    N --> O[FeatureToggleItem\nrole=button / aria-pressed / keyboard handler]

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[waleedlatif1]

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