Open Redirect URL Parameter Checker
Fast, accurate and free online open redirect url parameter checker tool running directly in your browser.
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Open redirects and URL parameters tester
This tool tests URL parameters (e.g. next, url, redirect) for potential open redirects and unsafe cross-domain redirects. It sends a series of HTTP requests with various payloads (external URLs, //host, etc.) and parses the Location header. The results are heuristic - use only to audit your own websites or where you have formal consent.
Analysis scope
Based on the tests performed, no clear open redirects were detected. Please note that this is a quick heuristic test and does not replace a full pentest.
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Related tools
Other tools you may find usefulOpen Redirect URL Parameter Checker online - quick test of redirection parameters
Open Redirect URL Parameter Checker is a simple online tool that helps you check in a few steps how your website or API responds to parameters such asredirect, url, next, gotoorreturn, so you can quickly assess the risk of open redirect vulnerabilities without manually entering addresses and checking headers in developer tools.
What does Open Redirect URL Parameter Checker
The tool takes the URL you provide, analyzes its query parameters and optional additional parameters, and then automatically executes a series of controlled tests, during which it replaces the values of suspicious parameters with safe test payloads to check whether the application does not allow uncontrolled redirects to external domains.
During the scan, Open Redirect URL Parameter Checker monitors HTTP statuses, theLocationheader, the final address after redirection and whether the target domain is different from the one with which the request was started, so in one report you see not only a list of tested parameters, but also a short summary of which of them may require the attention of the security team.
- Automatic detection of parameters in the URL and from an additional list entered manually.
- Testing parameters with prepared open redirect payloads, without interfering with the logic of the application itself.
- Marking suspicious parameters by risk level so that you immediately know what to focus on.
- Displaying the final address, response code and basic hosting information of the target resource.
What does scanning redirect parameters look like
After running the test, the tool downloads a page from the given address, looks for parameters in the query string and, if you want, adds typical names used in the implementation of login, password reset or return to the previous page, and then generates a series of controlled queries in which it replaces only the values of the indicated parameters with test addresses, avoiding aggressive actions and focusing on how the application processes redirects.
Thanks to this, you can clearly see in the report which parameters are ignored, which lead to internal redirects, and where there are potential open redirects, i.e. situations in which the user may be redirected to another domain, which in some scenarios can be combined with phishing or impersonating a trusted website.
Why open redirect vulnerability is dangerous
The open redirect vulnerability is where an application accepts an external URL as a parameter and performs the redirect without sufficient validation, which means that a user can be redirected to a foreign site with full trust in the original domain because they clicked on a link to the correct site, such as a login page, password reset, or return after a successful login.
In practice, attackers often combine open redirect with phishing campaigns, taking advantage of trust in the brand that is in the first part of the address, therefore quick detection and limitation of vulnerabilities of this type is important both for the website's reputation and for the safety of users who may unknowingly provide their login details on a fake website.
Fast open redirect test without configuration
You don't need to install any add-ons, manually generate long URLs or analyze network headers, because Open Redirect URL Parameter Checker does it for you and shows a clear table with parameters, test payloads and the final address to which the redirection was made.
Improved visibility of URL parameter behavior
The tool allows you to easily distinguish parameters that are safely ignored or restricted to internal paths from those that accept full external addresses, making it easier to decide whether additional security measures such as domain whitelisting, path validation, or address signing are necessary.
Support for developers and security teams
Thanks to a clear report, developers can immediately see which parameters are responsible for redirections and how they are used, and those responsible for security have a quick starting point for further manual tests and building user protection policies against abuse.
How to use Open Redirect URL Parameter Checker step by step
The interface is designed so that you can enter an address, run an open redirect scan and understand the results without delving into the documentation, while still having the option to refine the parameter list and response timeout if you are working with larger applications or slower backends.
- Enter the full URL of the page or endpoint you want to test, for example the address of the login page with a return parameter or a link from a transactional email containing redirection parameters.
- Optionally, set a response timeout to match site performance and avoid waiting too long for results for slower applications.
- Leave the option to automatically add popular open redirect parameters enabled or add your own in the additional parameters field if you know what names your application uses.
- Click the run scan button and the tool will send a series of test queries and build a report containing a summary, a list of suspicious parameters and a detailed table of all tests performed.
- Based on the report, decide whether a given parameter requires improving the logic, limiting it to internal paths, introducing a whitelist of domains or completely disabling externally controlled redirection.
What types of open redirect parameters does the
tool detect? The scanner focuses on both classic parameters likeredirect, url, next, return, continue, as well as complex parameters that resemble URLs or fragments paths, and you can additionally provide your own parameter names if your application uses non-standard markings.
Typical examples of redirect parameters
- Parameters that indicate a redirect by name, for example
redirect,redir,return,next,gotoorback. - Parameters containing the full URL, for example
url=https://example.comortarget=https://yourdomain.pl. - Parameters with fragments of paths that the application glues to the base address, which may be safe, but requires checking whether it is not possible to "exit" from them main domain.
Examples of situations in which it is worth performing the test
- Links from password reset, registration or login confirmation emails, which, when clicked, return to a specific page.
- Addresses of login pages to administration panels, which redirect the user to the previous location after logging in.
- Payment systems, partner integrations and SSO applications, which often involve redirections between different domains.
What you will find in the report after scanning
The Open Redirect URL Parameter Checker report is built in such a way that you can see the most important information about the examined address at a glance, and only then go into detail if you want to carefully analyze the behavior of individual parameters or a set of test payloads.
Technical Summary
- The domain and protocol the address you are examining is using, giving you a quick idea of whether you are using HTTPS.
- Number of parameters tested in the scan, including automatically detected and manually specified parameters.
- Information about how many potential high-level issues were detected during testing.
Suspicious Parameters and Test Table
- List of the most suspicious parameters along with a brief description of the risks that may be associated with them.
- A table of all tests performed, showing the parameter name, payload used, response status, final address and whether the redirect led outside the domain.
- Access raw HTTP headers in a separate section, useful for those who like to analyze the full server response.
Safe use of open redirect checker
Open Redirect URL Parameter Checker is a defensive tool designed for administrators, developers and people responsible for security who want to make sure that their websites do not provide an easy-to-use open redirect mechanism, at the same time the tool is not intended to attack other people's websites or bypass security measures.
Remember that responsible security testing means working only in environments to which you have formal permissions, so treat this open redirect checker as a quick audit of your own applications, not as a tool for mass Internet scanning.
Frequently asked questions about Open Redirect URL Parameter Checker
Can I test any URLs found on the web
Technically, you can enter most publicly available addresses, but in line with good security and testing ethics practices, we recommend using the tool only for your own applications, test environments and websites where the owner has expressly agreed to perform such tests.
Which means that the parameter has been marked as potentially dangerous
This means that during testing, at least one of the open redirect payloads led to a redirect outside the base domain or to behavior that could be exploited in a phishing scenario, but a full risk assessment should always take into account the context of the application, additional security measures, and how users actually use the link.
Does a positive scan result mean that my application is 100% safe
No, like other automatic scanners, Open Redirect URL Parameter Checker does not replace a full security audit, but it helps to quickly detect problems with redirect parameters that are visible at first glance and should be corrected before they are noticed and exploited by third parties.
Check redirection parameters on your website
Enter the website address, add parameters, run a scan and see if your application safely handles redirection before someone else does.