[P2] Audit: SoftwareApplication structured data is missing or incomplete on tool pages

[baixiangcpp]

Imported from the byteflow.tools deep audit on 2026-06-22.

Problem: tool pages are ideal candidates for structured data, but SoftwareApplication/WebApplication schema is not consistently visible or complete. Tool pages should communicate that each tool is browser-based, free, privacy-first, and usable without signup.

Affected page type:

• Tool pages

Reproduction steps:

1. Open representative tool pages.
2. Inspect JSON-LD in page source.
3. Validate with a structured data validator.
4. Check for SoftwareApplication/WebApplication, FAQPage, BreadcrumbList, and Article/HowTo where appropriate.

Expected behavior: each tool page should have valid structured data that matches visible page content.

Actual behavior: structured data support appears incomplete and not tool-specific enough.

Impact: weaker eligibility for rich results, unclear tool entity signals, and reduced AEO/LLM discoverability.

Proposed fix:

• Add SoftwareApplication or WebApplication schema per tool.
• Include name, description, applicationCategory, operatingSystem: Browser, offers price 0, URL, privacy policy, and featureList.
• Add BreadcrumbList and FAQPage where visible FAQ exists.
• Validate schema in CI.

Acceptance criteria:

• Major tool pages pass schema validation.
• Schema matches visible content.
• Required properties are present.
• No duplicate or conflicting JSON-LD blocks are emitted.

[baixiangcpp]

Closed as completed by the canonical BF audit backlog work. This older non-BF audit issue duplicates work now merged through PRs #209-#219, with the BF issues closed and guard/test coverage in place. The remaining non-duplicate follow-up is #7, which stays open because the upstream Next/PostCSS advisory is not fixed yet.