Start with the live form
Enter a domain, URL, IP, email, or record and get a focused result without setup.
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Web Data
Domain Intelligence
DNS & Infrastructure
Security & Trust
Identity & Verification
Monitoring & Automation
JavaScript SEO checker
Enter a page URL to compare its raw HTML with the JavaScript-rendered version and find the SEO signals that crawlers without JavaScript would miss.
Results
Interactive intelligence tool
Run the check, then ship the workflow
Use the browser tool for a fast answer, then move the same logic into scripts, monitoring, or product flows when it becomes repeatable.
Review decision-ready signals
Outputs highlight statuses, risks, records, and next actions instead of raw provider noise.
Automate the workflow that works
Use the request and response examples to turn a one-off check into an API call or recipe.
Used by people at these companies
What this tool helps you decide
Each page is shaped around a practical operational question, not just a raw lookup.
See the current DNS, registration, security, pricing, or reputation evidence.
Compare the result with related checks so the next move is easier to trust.
Copy examples, open linked tools, or move into API documentation when you need scale.
Trust signals before you integrate
Transparent docs, authenticated requests, and visible reliability details make it easier to evaluate DomScan before you ship.
Service status
API artifacts
OpenAPI, Swagger, Postman, CLI, SDK, and MCP links are one click away.
API keys
Protected access
Authenticated endpoints use API keys with clear credit costs before you call them.
Free allowance
Sign up for free
Start with 10,000 monthly credits and upgrade only when usage grows.
Active
Example request
Start from the curl and HTTP samples, then map the parameters into your application code.
Key Features
Two versions, one report
The page is read raw and rendered in parallel and the same SEO signals are extracted from both.
Impact ranking
Every difference is labelled with a high, medium or low impact so you know what to fix first.
AI crawler readiness
Many AI crawlers read only raw HTML. See how much of your page they can actually read.
Example request
GET /v1/onpage/render-diff?url=example.comBuilt on the same API
The browser experience previews DomScan's structured endpoints, so teams can validate a use case before writing code.
Frequently asked questions
What does high JavaScript dependence mean?
A key signal such as the title, canonical, robots directive, H1 or main content only exists or changes after JavaScript runs.
How do I fix JavaScript SEO issues?
Render critical content, meta tags and links on the server, or pre-render pages, so they are present in the raw HTML.
Why is the check slower than other tools?
The page is loaded twice, once in an isolated browser that runs its JavaScript, which takes a few extra seconds.