Understand security issues with Microsoft Edge DevTools
Open the Security panel
The Security panel is the main place in DevTools for inspecting the security of a page.
Non-secure main origins
When the main origin of a page is not secure, the Security Overview says This page is not secure.
This problem occurs when the URL that you visited was requested over HTTP. To make it secure you need to request it over HTTPS. For example, if you look at the URL in your address bar, it probably looks similar to
http://example.com. To make it secure the URL should be
If you already set up HTTPS on your server, all you need to do to fix this problem is configure your server to redirect all HTTP requests to HTTPS.
If you have not set up HTTPS on your server, Let's Encrypt provides a free and relatively-easy way to start the process. Or, you may consider hosting your site on a CDN. Most major CDNs host sites on HTTPS by default now.
Mixed content means that the main origin of a page is secure, but the page requested resources from non-secure origins. Mixed content pages are only partially protected because the HTTP content is accessible to sniffers and vulnerable to man-in-the-middle attacks.
In the previous figure, choose View 1 request in Network panel to open the Network tool and apply the
mixed-content:displayed filter so that the Network Log only shows non-secure resources.
View main origin certificate
From the Security Overview, choose View certificate to quickly inspect the certificate for the main origin.
View origin details
Choose one of the entries in the left-hand nav to view the details of the origin. From the details page you are able to view connection and certificate information. Certificate transparency information is also shown when available.
Getting in touch with the Microsoft Edge DevTools team
Use the following options to discuss the new features and changes in the post, or anything else related to DevTools.
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Portions of this page are modifications based on work created and shared by Google and used according to terms described in the Creative Commons Attribution 4.0 International License.
The original page is found here and is authored by Kayce Basques (Technical Writer, Chrome DevTools & Lighthouse).
This work is licensed under a Creative Commons Attribution 4.0 International License.