# Plan cross-browser and cross-device compatibility testing

A prioritized browser and device test matrix, tooling choices, and checklist so your site or app works for your real users.

- Topic: Software Development
- Framework: Few-Shot
- Level: Standard
- Tags: Data & Analytics, Plan, Fill-in Template
- Source: https://www.thinkwithprompt.com/prompts/plan-cross-browser-and-cross-device-compatibility-testing

## Prompt

```text
Help me plan compatibility testing for my website or app across browsers, operating systems, and devices.

**Product:** [website / web app / hybrid or native mobile app, tech stack]
**Who uses it:** [ANALYTICS SPLIT by browser, OS, device, screen size - or "unknown"]
**Must-support list (if any):** [contract or policy requirements]
**Team and budget:** [testers, automation experience, tool budget]
**Release cadence:** [e.g. weekly]
**Known problem areas:** [e.g. "Safari date pickers", "older Android WebView", "small screens"]

Give me:
1. A support policy: tiers (Fully supported / Functional / Not supported) with criteria, based on my analytics or, if I have none, sensible defaults marked [CONFIRM WITH ANALYTICS].
2. A test matrix table: Browser/OS/device | Tier | Manual or automated | Frequency (every release / monthly).
3. What to test: layout and responsiveness, forms and input types, fonts, media, JavaScript and CSS feature support, touch vs. mouse, accessibility with built-in screen readers, performance on low-end devices, and app store OS-version requirements for native apps.
4. Tooling options: local browsers and emulators, cloud device labs, and automated end-to-end frameworks that run across engines, with trade-offs rather than one forced pick.
5. Prevention: feature detection, progressive enhancement, browserslist/polyfill config, and linting for unsupported features.
6. A bug report template for compatibility issues (environment, steps, screenshot, expected vs. actual).
7. A pre-release smoke-test checklist that takes under 30 minutes.
```

## What to fill in

- website / web app / hybrid or native mobile app, tech stack
- contract or policy requirements
- testers, automation experience, tool budget
- e.g. weekly
- CONFIRM WITH ANALYTICS

Free to copy and use. From ThinkWithPrompt (https://www.thinkwithprompt.com/), a library of 2,663 curated AI prompts.