Acceptance‑Test‑First Landing Pages: Make Every Feature Page a QA Spec

Traditional handoffs bury behavior in separate PRDs, Figma files and test tickets. That disconnect is the reason contractors deliver late or ask for clarifying rounds: the living behavior lives in engineers’ heads, not on the page. When you make the public feature page the canonical spec and express its claims as acceptance tests, design and development work from the same machine‑readable truth.

Embedding tests and structured data (JSON‑LD) on the feature page aligns marketing copy, SEO facts and QA checks. Search engines and integrations still get canonical product facts from JSON‑LD, while contractors get concrete, failing tests they can run locally or in CI to confirm implementation matches copy.

Start with the single-sentence feature promise your page must deliver (the headline). Break that promise into 3–5 user‑facing acceptance criteria expressed as behaviour statements: what the user sees, what controls exist, and what the measurable result is. Convert each criterion into a Playwright‑style test snippet so it’s precise and executable.

Next, extract factual elements for structured data: product name, supported platforms, price or trial availability, and a concise description — these go into JSON‑LD (SoftwareApplication or Product). Finally, update mockups and annotations so every interactive state referenced in tests has a corresponding artboard or component‑state in your design files.

Below are short, idiomatic Playwright test patterns you can paste into a repo. They’re deliberately page‑level and readable: each test mirrors a sentence of your landing copy. Replace selectors and URLs with your real values and commit them alongside the marketing branch so contractors can run them as they build.

Keep tests at the acceptance level — one assertion per visible claim — and avoid coupling to internal implementation. That keeps tests stable across refactors and makes the landing page a durable QA spec.

Use schema.org types that match the feature: often SoftwareApplication or Product. Include the minimal set of factual properties your contractors must implement and validate: name, description, offers (if pricing is claimed), softwareHelp or feature list, and mainEntityOfPage. Keep the JSON‑LD near the top of the page head so it’s discoverable to crawlers and easy for engineers to extract into a CMS field.

Authoring JSON‑LD alongside tests closes the loop: tests can assert the JSON‑LD contains the expected values (for example, price or availability), so copy, structured data and UI behavior stay in lockstep.

Send this checklist with the marketing branch or PR that contains the landing copy. It sets expectations and makes the first contractor pass much closer to final: 1) Playwright acceptance tests (runnable), 2) JSON‑LD snippet in the head, 3) annotated mockups for each interactive state referenced by tests, 4) a mapping table of test IDs → CSS selectors or data-test attributes, and 5) known edge cases with example data.

Include instructions to run tests locally and in CI, and a preconfigured test script (npm/yarn) that installs Playwright and runs the specific feature tests. That prevents mismatch between local environments and CI and dramatically cuts clarification threads.