Iframe Tester
Test if Any Website Can Be Embedded in an Iframe
Quickly test if any website can be embedded in an iframe. Our free online tool checks X-Frame-Options headers, Content Security Policy (CSP), and other iframe embedding restrictions. Essential for developers, web designers, and anyone working with embedded content. Get instant results with detailed error information.
Try Iframe Tester Live
Test how any website looks when embedded in an iframe. Enter a URL and preview it instantly with different viewport sizes.
Iframe Preview
No Website Loaded
Enter a URL above and click "Load Website" to preview
Enter URL
Type or paste any website URL
Choose Viewport
Select desktop, tablet, or mobile view
Test Iframe
See how the site looks embedded
Powerful Iframe Testing
Everything you need to test iframe embedding compatibility in one place
How It Works
Get started with iframe testing in just four simple steps
Enter URL
Type or paste the website URL you want to test for iframe compatibility.
Choose Viewport
Select your preferred viewport size: desktop, tablet, or mobile.
Run Test
Click to analyze iframe embedding compatibility and security policies.
View Results
Get comprehensive results with technical details and recommendations.
Additional Features
Everything you need for comprehensive iframe testing
Real-time Testing
Instant results without waiting
Cross-browser Support
Works across all modern browsers
Detailed Reports
Comprehensive security analysis
Responsive Preview
Test multiple screen sizes
Trusted by Developers
Thousands of developers rely on our iframe tester for quick and accurate compatibility analysis
Sites Tested
Websites analyzed for iframe compatibility
Detection Rate
Accurate security policy identification
Test Speed
Average iframe compatibility analysis time
Viewport Sizes
Different screen dimensions supported
Perfect for developers and teams
From web development to security testing, iframe compatibility made simple
Frequently Asked Questions
Everything you need to know about Iframe Tester
What is an Iframe Tester and how does it work?
An Iframe Tester is a web tool that checks whether a website can be embedded in an iframe. It tests for X-Frame-Options headers, Content Security Policy (CSP) restrictions, and other security policies that may prevent iframe embedding. Simply enter a URL and get instant results.
Test multiple viewport sizes to ensure your iframe content displays properly across different devices.
Is the Iframe Tester free to use?
Yes! Our Iframe Tester is completely free to use with no registration required. You can test unlimited websites and get detailed information about their iframe embedding compatibility without any cost.
What is X-Frame-Options and why does it matter?
X-Frame-Options is an HTTP response header that indicates whether a browser should allow a page to be displayed in an iframe. Values like "DENY" or "SAMEORIGIN" prevent embedding, while "ALLOWALL" or no header typically allows it. This is crucial for web security and integration.
Do I need technical knowledge to use the Iframe Tester?
Not at all! Our Iframe Tester is designed to be user-friendly for everyone. Simply paste a URL, select a viewport size, and click test. The tool provides clear, easy-to-understand results about whether the site can be embedded and why.
What viewport sizes can I test?
Our tool supports multiple viewport sizes including desktop (1200x800), tablet (768x1024), and mobile (375x667) views. This helps you understand how the embedded content will appear across different devices and screen sizes.
Why might a website block iframe embedding?
Websites block iframe embedding for security reasons to prevent clickjacking attacks, maintain brand control, ensure proper user experience, or comply with legal requirements. Common blocking methods include X-Frame-Options headers and Content Security Policy directives.
Still have questions?
Can't find the answer you're looking for? Our support team is ready to assist you with any questions about Iframe Tester.