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Check generated HTML before website deployment

Check one generated HTML snapshot before deployment. Replace the sample HTML with your own page; the preset maximum charge is $0.01005 at current rates. Get JSON findings with source-line evidence for metadata and JSON-LD syntax. URLs are labels, never fetched. The sample intentionally contains a JSON-LD trailing comma.

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HTML SEO & JSON-LD Syntax Checker — PageProof
HTML SEO & JSON-LD Syntax Checker — PageProofcoolish_indium/pageproof-preflight
Page ID
Supplied URL
Errors
Warnings
+2 fields
Text
Number
Boolean
List
Object

Input

HTML pages to inspect(required)
Page ID:landing
Page URL(required):https://example.com/landing
HTML snapshot(required):<!doctype html> <html lang="en"><head> <title>Landing page</title> <meta name="description" content="A generated landing page snapshot."> <link rel="canonical" href="https://example.com/landing"> <script type="application/ld+json">{"@type":"Organization",}</script> </head><body><h1>Landing page</h1></body></html>

Output fields

Page ID
Supplied URL
Errors
Warnings
Information
Document title

How it works

Sign up on Apify or log in

The HTML SEO & JSON-LD Syntax Checker — PageProof Actor is ready to run with the inputs already set for "Check generated HTML before website deployment". Sign up or log in and you'll land in Apify Console with a copy of this exact task.

Start the "Check generated HTML before website deployment" task

The HTML SEO & JSON-LD Syntax Checker — PageProof Actor will start running based on the input automatically. You can also change all the input fields, like HTML pages to inspect, to match your specific use case.

Receive the "Check generated HTML before website deployment" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as page id, supplied url, errors, and more.

Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Check generated HTML before website deployment" task via API.

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Integrate "Check generated HTML before website deployment" into your workflow

Connect "Check generated HTML before website deployment" with 100+ integrations, or run it via API or MCP.

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