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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11In-test accessibility automation runs a scan as part of a test; out-of-test automation analyzes data captured by tests after their code has finished. The difference is where the scan runs and how findings connect to test results—not whether the application is accessible. Both approaches only inspect states exercised by the test journeys, and neither replaces manual evaluation or application-specific assertions.
How in-test accessibility checks work
An in-test scan is invoked from test code or otherwise runs during test execution. With Cypress, for example, a team can use the community cypress-axe integration to run an axe-core scan at a chosen point in a test.
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The test author chooses when to scan and which pages or interaction states to reach. A scan after initial page load will not automatically cover a dialog, validation error, or later workflow state; the test must reach that state and run a check there. Findings are connected to the test workflow, and teams can decide how to handle them alongside test results.
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This model can fit an existing test setup and gives developers control over scan placement. Its operational cost depends on how many scans run, how often they run, and the environment. Cypress’s vendor-authored article also identifies execution time, flakiness, noisy results, and tester training as possible considerations when adding checks; these are not universal or quantified outcomes. See Cypress’s explanation of its approach.
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How out-of-test accessibility checks work
In Cypress’s out-of-test example, accessibility checks do not run inside the Cypress test. Cypress Cloud processes Test Replay data captured from recorded tests, runs axe-core rules and Cypress custom logic, and presents the results separately. Cypress describes reports by page or component, HTML and CSS snapshots, comparisons between runs, and connections to test runs and branches. These are Cypress product capabilities, not independent performance findings; see its Cypress Accessibility product page.
Because analysis happens after test execution, the service can process states visited by recorded journeys without requiring explicit accessibility commands in those tests. But it cannot inspect states those journeys never reached. A recorded test that stops before opening a menu cannot provide evidence about the menu’s accessibility.
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Cypress says its service does not add accessibility scan time to functional test runs. That is a vendor claim about its own workflow, which depends on Cypress Cloud recordings; it should not be read as a general guarantee about every out-of-test system.
Side-by-side comparison
| Decision point | In-test checks | Out-of-test processing |
|---|---|---|
| When scanning happens | During test execution, when the test invokes or triggers a scan. | Separately, using data captured during test execution. |
| Who selects states | Test authors choose where to run scans; coverage depends on test design. | Recorded journeys contribute the states the service can analyze; coverage still depends on what tests visited. |
| Test-code integration | Requires an integration or scan command in the test workflow, such as cypress-axe. | Cypress says its service requires no accessibility assertions in the tests for its scanning workflow. |
| Feedback and context | Results are associated with the check or test workflow. | Cypress describes page/component reports, snapshots, and comparisons between reports. |
| Runtime and operations | Scans add work to the test path; the effect depends on scan frequency, suite size, and environment. | Cypress says processing does not add scan time to functional test runs; this is a vendor statement about its service. |
| Portability and dependencies | A community plugin can run within Cypress tests. | Cypress Accessibility depends on Cypress Cloud recordings and is a separately purchased service. |
| What automation cannot replace | Manual evaluation and application-specific assertions. | Manual evaluation and application-specific assertions. |
What determines coverage in either model?
Coverage follows the states the automated workflow actually reaches. For useful coverage, tests need to exercise relevant interfaces and interactions—not just load a page—and checks need to run on the resulting states. Consider whether your suite reaches states such as:
- Open menus, dialogs, and other overlays.
- Form errors and other validation feedback.
- Authenticated or role-specific views that are part of the tested workflow.
- Loading, empty, and completed states that the test is intended to cover.
This is about the reach of the tests, not a special advantage of either architecture. Out-of-test processing can analyze recorded states without adding scan commands to each test, but it cannot infer every state a user could reach.
Why scans are not an accessibility verdict
Automated scanners find violations of encoded rules; they do not establish that an interface is fully accessible. Cypress’s documentation puts the limitation plainly: “No scan can prove that an interface is fully accessible, so plan to cover the gaps with manual testing and explicit assertions of your own.” Cypress documentation also distinguishes general scans from assertions for expectations specific to an application—for example, whether a particular control has the accessible name its users need.
Use automated findings as one source of evidence. Add manual evaluation and targeted assertions for behavior and expectations that generic rules cannot determine. The W3C’s ACT Rules Format 1.0 Working Draft (2017) discusses documenting rule interpretation to support consistency; it does not prescribe an in-test or out-of-test architecture.
How to choose an approach
- Choose in-test scans when you want scan placement in test code and findings close to the checks that produced them.
- Consider out-of-test processing when a separate reporting workflow suits your team and you use a platform that captures the test data it needs. For Cypress Accessibility specifically, account for the Cypress Cloud recording dependency and separate purchase.
- For either model, review which interaction states tests reach, how findings will be triaged, and where manual checks and application-specific assertions fit.
These models are not mutually exclusive by definition. A team can use in-test checks for targeted feedback and a separate reporting workflow where its tools support it. The decision should follow the desired feedback loop and platform dependencies, not an assumption that one model proves conformance.
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ScreenshotNeo is a website screenshot API and MCP server, not an accessibility scanner. It can provide screenshots of pages for visual review alongside an accessibility-testing workflow. A single GET request returns an image or PDF; for example:
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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSee the ScreenshotNeo documentation for request options. Cookie banners, popups, and chat widgets are removed before the shot; bot checks, blank pages, and failed loads are never billed. An MCP server lets AI agents take screenshots. The free plan includes 1,000 screenshots a month with no card, and paid plans start at $5 for 3,000. Learn about ScreenshotNeo or sign up free for 1,000 screenshots a month, with no card.
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