Classic tool
SSR Checker
Compare the no-JavaScript version and the JavaScript-enabled version of a URL side by side to inspect the initial HTML.
Use this SSR Checker to inspect a public URL and compare what arrives in the initial HTML with what only appears after scripts run. It works well for SEO audits, technical debugging, QA, editorial review and pages that mix SSR, hydration and client-side behavior.
The tool fetches the page server-side, measures signals such as title, meta description, canonical, H1, visible source text, JSON-LD and script volume, then returns a practical score-based diagnosis. The focus stays on what visitors, monitors and crawlers receive in the first HTML response.
The comparison is now more direct: one panel shows the no-JavaScript version and the other tries to load the JavaScript-enabled version inside a sandbox. That makes it easier to spot empty app shells, content that disappears without hydration and interactions that only exist when scripts can run.
Use clear inputs to get a more useful result.
How to use SSR Checker
Open the tool, fill in the fields with the data you already have and generate the result step by step. If you want to compare scenarios, change one field at a time so it is easier to understand the impact of each value.
When SSR Checker is useful
The goal here is simple: Compare the no-JavaScript version and the JavaScript-enabled version of a URL side by side to inspect the initial HTML. It works well for quick checks, planning, study and review before you move to a final decision or document.
What to review before using the result
Check units, labels, numbers, timing and any context that can change the meaning of the output. If the result will be used in a quote, technical task, published page or report, finish with a manual review.
Frequently asked questions
What should I prepare before using the tool?
Keep the key values, labels and units ready before filling in the fields. Cleaner inputs make the final result easier to review and compare.
Can I test different scenarios on the same page?
Yes. The safest approach is to change one field at a time, compare the outputs and note which value actually changes the final answer.
Is the result ready to use without checking it?
It is better to treat it as support. Review the output once more before using it in a quote, document, spreadsheet, technical task or published page.