ScreenshotMachine’s API delay parameter is a fixed pre-capture timer, not a documented “wait until the page is ready” condition. The API documentation lists a 200 ms default and supported values up to 10,000 ms. Its browser-based generator is a separate interface: it presents delay in seconds and states a two-second default. Choose the API value based on the page and inspect the result; no single delay is documented to work for every dynamic page.
What ScreenshotMachine’s delay does
The API guide describes delay as how long the capture engine waits before creating the screenshot. In practical terms, it adds a timer before capture. It does not document a guarantee that JavaScript, images, animations, or other asynchronous page activity have finished.
The documented API default is 200 milliseconds. The values below are ScreenshotMachine’s published parameter choices, not independently measured performance results. The documentation pages reviewed state no publication date; the values were accessed October 3, 2026.
API delay values and defaults
| Interface or setting | Documented value | What to know |
|---|---|---|
| ScreenshotMachine API default | 200 ms | Applies to the API guide’s delay parameter. |
| Accepted API values | 0, 200, 400, 600, 800, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000 ms | Use one of the listed values; the documented maximum is 10,000 ms. |
| Online generator default | 2 seconds | The generator describes its delay control in seconds. This is not the API default. |
The different defaults belong to different interfaces, so do not convert the generator’s two-second default into a claim about API behavior. See ScreenshotMachine’s API options documentation and online generator for the vendor’s descriptions.
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How long should you wait for dynamic content?
Start with the API default if you are making API requests. If the captured page visibly lacks content that appears later in a normal visit, try a longer supported value and compare the result for that particular page. A longer timer gives delayed content more time to appear, but ScreenshotMachine does not publish a universal wait duration or say that a given setting guarantees readiness for any framework or site.
For long full-page captures
ScreenshotMachine says to consider a delay of 2,000 ms or more for some full-page captures because long pages may include additional images or animations. Treat that as a vendor example to consider, not a required setting or a promise that all content will load.
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For ordinary viewport captures
The documentation does not prescribe a separate universal value for viewport screenshots. Begin with the API default, then adjust only when the output for the specific page shows that important content arrives too late.
Use click, hide, and selector for different jobs
ScreenshotMachine also documents options that affect interaction or capture scope. They can help shape what gets captured, but the documentation does not say they guarantee that dynamic content is ready.
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clicktriggers a page element before capture, which can be useful when a control must be activated to reveal content.hideremoves matching elements from the capture, useful when an overlay or other unwanted element should not appear.selectorcaptures a single DOM element rather than the whole page.
These options address a different problem from waiting: clicking can trigger an interaction, hiding can omit an element, and selecting can narrow the capture. A fixed delay remains only a timer.
A practical tuning workflow
- Make a baseline API capture. If you have not set
delay, the API documentation gives 200 ms as the default. - Check the returned image or PDF. Identify the specific missing or incomplete content rather than assuming every element needs more time.
- Increase the timer using a documented value. For example, move from 200 ms to 1000 ms, then to 2000 ms if needed. For some long full-page captures, ScreenshotMachine specifically suggests considering 2000 ms or more.
- Compare captures for the target page. Keep the smallest delay that produces the content you need; the documentation does not establish a universally optimal value.
- Use interaction or scope options only when they match the problem. Try
clickto trigger a control,hideto omit an element, orselectorto capture a particular element.
Common problems and fixes
- The API rejects a delay value: verify that it is one of the documented API values and expressed in milliseconds, not an arbitrary number or the generator’s seconds-based format.
- Dynamic content is still missing: a fixed wait does not certify that the page is ready. Try a longer supported timer and inspect the page’s result; no framework-specific readiness behavior is documented.
- A full-page capture misses later images or animations: ScreenshotMachine advises considering 2,000 ms or more for some long pages. Test that setting against the particular page rather than treating it as a universal rule.
- A click or selector does not solve the timing issue: those options control interaction or capture scope, not a documented wait-for-element or wait-for-event condition.
- The generator and API seem to disagree: they show different interface defaults—two seconds in the generator and 200 ms in the API guide. Apply the default for the interface you are using.
Or skip the browser setup
If you need a screenshot API with explicit wait controls, ScreenshotNeo offers waits for a selector, a delay, or network idle, alongside a one-request capture. For example, this cURL request saves a WebP screenshot of Stripe:
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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 API documentation for request options. ScreenshotNeo removes cookie banners, newsletter popups, and chat widgets before the shot; bot checks, blank pages, and failed loads are never billed. Its MCP server lets AI agents take screenshots. The Free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000.
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Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Frequently Asked Questions
Does ScreenshotMachine delay wait until JavaScript finishes?
No such readiness guarantee is documented. The API describes a fixed wait before capture.
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What is the ScreenshotMachine API delay maximum?
The documented maximum is 10,000 milliseconds.
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