Journalist 
Yes, you can add a site to IE mode in Microsoft Edge. If you’re dealing with legacy intranets or old web apps that only work well in Internet Explorer, IE mode in Edge is your bridge. This guide walks you through the exact steps to add a site to IE mode, how to set up the Enterprise Mode Site List for mass deployment, and how a VPN can fit into this workflow—so you stay secure while you test and use those older sites. If you’re looking to protect your browsing while you set this up, consider NordVPN with 77% off plus 3 months free:
In this post you’ll find:
- A practical step-by-step to add a site to IE mode
- How EMSL Enterprise Mode Site List works and why IT teams use it
- Manual testing steps for single-site scenarios
- VPN pairings and best practices for Edge IE mode
- Security and policy considerations to keep you protected
- A thorough FAQ to answer common questions
Body
What is Internet Explorer mode in Edge and why it matters for legacy sites
Internet Explorer mode IE mode in Edge is a compatibility layer designed to let you run legacy web apps and intranet sites that were built for Internet Explorer, while still using the modern Edge browser. Microsoft released IE mode to help organizations transition away from IE 11 while preserving access to essential internal tools. The key idea is simple: you get the compatibility you need without sacrificing security and performance advantages of a modern browser.
- IE mode uses the old rendering engine for specific sites while you’re in Edge, making legacy pages render more accurately.
- It’s especially useful for internal web apps, legacy banking tools, healthcare portals, and custom corporate dashboards that haven’t been modernized yet.
- Microsoft supports IE mode through a combination of Site Lists, Group Policy, and Microsoft Edge configuration that allows managed deployments across devices.
As of 2025, IE mode remains a supported bridge for enterprises that still rely on older websites, with ongoing updates to improve security and compatibility. For remote workers and smaller teams, IE mode can be turned on per-site or managed via EMSL so IT can enforce consistent behavior across all devices.
Prerequisites to add a site to IE mode
Before you can add sites to IE mode, you’ll want to confirm a few prerequisites:
- Windows 10 or Windows 11 device with the latest Edge update. IE mode relies on Edge’s built-in capabilities, and Microsoft updates this regularly for security and compatibility.
- An Enterprise Mode Site List EMSL or a testing method to direct Edge when to switch a site into IE mode.
- Administrative privileges to configure Group Policy, Microsoft Endpoint Manager Intune, or other MDM/MDM-like management tools.
- A basic understanding of your internal web apps and their URLs so you can properly define which sites need IE mode.
If you’re alone at home testing legacy sites, you can still enable IE mode for single sites using Edge’s built-in options once you’ve configured EMSL or at least one site to be recognized by Edge as IE-mode compatible.
How to add a site to IE mode using the Enterprise Mode Site List EMSL
The EMSL is the backbone for deploying IE mode across an organization. Here’s a practical workflow: Edge vpn extension for chrome
- Step 1: Create or update your Enterprise Mode Site List.
- The EMSL is an XML document that enumerates sites and their compatibility settings.
- Each entry includes the site URL and an optional CompatibilityMode value e.g., “IE11” or “Default” depending on your policy.
- Step 2: Host the EMSL on a web server that all Edge clients can reach internal site or public if your network design allows it.
- Step 3: Point Edge devices to the EMSL.
- In Group Policy: Configure the policy to specify the EMSL URL.
- In Intune or another MDM: Supply the EMSL URL in the appropriate configuration profile.
- Step 4: Ensure the EMSL is kept up to date.
- IT teams should add new legacy sites as needed and refresh Edge policy on endpoints.
Practical tip: Use the Enterprise Mode Site List Manager tool to create and validate your EMSL before deploying it across the fleet. This helps prevent misconfigurations that could cause legitimate sites to fail in IE mode or cause unexpected behavior in Edge.
How to enable IE mode for a site manually single-site testing
If you just need to test a single legacy site without deploying EMSL, you can do a manual, local test as long as your environment allows it:
- Open Microsoft Edge and navigate to the site you want to test.
- If IE mode is available for that site and your policies permit it, you’ll see an option to “Reload in Internet Explorer mode” in the Edge menu three-dot menu or a small IE mode icon in the address bar.
- Click the option to reload in Internet Explorer mode. Edge will reload the page using the IE rendering engine, while the rest of your browsing remains in Edge.
- You can switch back by choosing “Exit Internet Explorer mode” from the Edge menu.
Note: For enterprise environments, this manual option is typically controlled via EMSL and Group Policy, so not every site will necessarily offer the IE mode toggle unless it’s configured for you.
VPN considerations when using Edge IE mode
A VPN can be a valuable companion when you’re accessing legacy intranet sites or internal portals from outside the corporate network. Here’s how to think about it:
- Why use a VPN with IE mode? Many legacy apps live inside the corporate network. A VPN lets you securely tunnel back to that network, preserving access to internal resources while you’re offsite.
- Split tunneling vs. full tunneling: If you only need to reach specific internal sites, split tunneling can keep other traffic off the VPN to improve performance. If you’re working with sensitive data or need full network access, a full-tunnel VPN setup is safer.
- VPN quality matters: You want a provider with good speed, reliable connections, and strong encryption. For personal use, VPNs like NordVPN are well-known options. for business use, your organization should deploy an enterprise-grade solution that integrates with your identity provider and device management.
- IPv6/dns considerations: Ensure the VPN you pick handles DNS leakage well and supports IPv6 if your internal apps rely on it.
- Compliance and policy: Some enterprises require that VPNs be configured through MDM or IT policy. Always align VPN usage with your company’s security policies when accessing IE mode-enabled sites.
If you’re testing IE mode at home or doing a personal project, a reputable consumer VPN can still help protect your traffic while you experiment. For corporate environments, rely on your IT-approved VPN and EMSL workflow to keep access controlled and auditable. How to disable vpn in microsoft edge
Edge settings and security with IE mode
Security is a big deal when you’re dealing with legacy sites. Here are practical practices:
- Keep Edge up to date: Microsoft pushes security fixes and IE mode improvements through Edge updates.
- Use EMSL to control which sites load in IE mode: Don’t enable IE mode for everything—limit it to known legacy sites to reduce risk.
- Disable IE mode when you’re not using it: If a site doesn’t require IE mode, keep it out of the list to minimize security exposure.
- Monitor and audit access: Use your MDM/Directory service to log which sites are loaded in IE mode and when. This helps you spot unusual access patterns and potential policy evasion.
- Consider a reputable VPN for sensitive legacy sites: When you route legacy site traffic through a VPN, you get added encryption for data-in-transit and can reduce exposure on public networks.
In short, treat IE mode like a controlled compatibility layer: enabled only where needed, kept up to date, and governed by policy.
Practical tips for IT teams deploying IE mode with VPNs
- Start with a pilot group: Roll out EMSL to a small IT or pilot user group first, then expand.
- Document all sites in EMSL: A clean, documented list reduces confusion and makes compliance audits easier.
- Align VPN policies with EMSL usage: If legacy sites require a VPN, make that a standard part of the user flow.
- Test performance under load: Legacy apps may be heavier on CPU or rely on older rendering teams. test both in-office and remote scenarios.
- Plan for deprecation: IE mode is a bridge. plan your migration path to modern apps and ensure EMSL entries are pruned as sites are modernized.
Troubleshooting common problems
- IE mode not appearing for a site: Check EMSL enrollment and policy provisioning on the endpoint. Clear policies if needed and re-check.
- Site not rendering correctly in IE mode: Verify that the site URL is correctly listed in EMSL with the right compatibility mode. Some older intranet apps require additional headers or authentication flows.
- VPN connection drops when loading an IE-mode site: Ensure the VPN client is set to auto-connect and that DNS resolution is not leaking. Consider splitting traffic appropriately.
- Policy not applying to a device: Confirm group policy or MDM configuration is deployed to the device and that Edge is using the policy center you configured.
- Edge shows legacy prompts or mixed content warnings: Ensure the site uses HTTPS with valid certificates. Mixed content can cause browsers to block resources in IE mode.
- EMSL updates not propagating: Check the EMSL URL accessibility from endpoints and verify firewall rules allow fetching the latest list.
Data and statistics you can use to inform your decision
- Edge remains the corporate browser of choice for many organizations needing IE compatibility, with continued emphasis on security updates and enterprise features.
- IE mode is designed as a transitional solution. the number of legacy sites on EMSL tends to be modest but essential for business-critical tools.
- VPN usage in enterprise environments has shown strong adoption for remote work, with organizations increasingly relying on secure tunnels to access internal apps and intranets.
- Performance considerations: Enabling IE mode introduces an extra rendering layer. expect slight increases in load times for legacy sites, but modern Edge benefits security, speed for modern sites still apply.
Useful tools and resources you’ll likely use:
- Enterprise Mode Site List Manager tool
- Group Policy Editor gpedit.msc
- Microsoft Edge policies reference
- Intune or your MDM for EMSL distribution
- VPN client documentation and enterprise deployment guides
Tools and resources you’ll want handy:
- Microsoft Edge IE mode documentation – https://learn.microsoft.com/en-us/deployedge/edge-ie-mode/ie-mode
- Enterprise Mode Site List Manager – https://www.microsoft.com/en-us/download/details.aspx?id=53013
- Windows Security and VPN integration guidance – https://support.microsoft.com
- IT admin guides for EMSL deployment – https://learn.microsoft.com/en-us/mem/configmgr/core/plan-design/security/ie-mode
- NordVPN for personal testing scenarios – https://nordvpn.com
Frequently Asked Questions J edgar review rotten tomatoes watch streaming with VPNs: access US catalogs securely and choose the best VPNs for movies
Frequently Asked Questions
Can I add any site to IE mode in Edge?
Yes, but typically only sites that your organization has approved via EMSL or per-site testing policies. For enterprise deployments, EMSL is the standard path to ensure consistent behavior across devices.
Do I need EMSL to use IE mode?
Not always. You can test a single site manually, but for ongoing enterprise deployments, EMSL with policy integration is the recommended approach.
How do I create an Enterprise Mode Site List?
You use the EMSL Manager tool to create and validate the XML list, then publish it to a web server. Edge devices fetch the list according to policy settings.
How do I test a site in IE mode without EMSL?
Navigate to the site in Edge, then use the “Reload in Internet Explorer mode” option if available. This is typically for testing and not for long-term deployment.
What’s the difference between IE mode and Compatibility View?
IE mode uses the actual Internet Explorer rendering engine inside Edge for compatibility, while Compat View is an older attempt to render IE-like content. IE mode is far more robust for enterprise apps. Edge vpn ios: The Ultimate Guide to Using a VPN on iOS with Edge Browser, Setup, Performance, and Privacy Tips
Can I use a VPN with Edge IE mode?
Yes. A VPN helps secure traffic when accessing intranet applications or legacy sites from outside the corporate network. Use your organization’s approved VPN solution and policies.
Should I enable split tunneling for IE mode traffic?
It depends on your security and performance needs. Split tunneling can improve performance for non-legacy sites, but full tunneling may be required for some internal apps. Consult your IT policy.
How do I know if a site is loaded in IE mode?
Most enterprise setups will show an indicator or keep a log of IE mode usage. You can also configure Edge to display a status icon for IE mode on the page.
What if a site stops working in IE mode after a policy update?
Check EMSL entries for that site, verify the policy is deployed and refreshed on the endpoint, and confirm there are no conflicting group policies. Sometimes a site needs adjustments in compatibility settings.
Is IE mode still supported in 2025 and beyond?
Yes, as part of Edge, IE mode continues to be supported for compatibility with legacy apps while the organization migrates to modern web apps. Microsoft updates and security patches apply. Edge secure network vpn review
What are best practices for securing IE mode traffic?
- Keep Edge updated
- Use EMSL for controlled site exposure
- Incorporate a strong VPN policy for intranet access
- Regularly audit and prune EMSL
- Enforce least-privilege access on legacy sites
How can I migrate away from IE mode in the long term?
Start by modernizing legacy apps, porting to modern web standards, or replacing them with supported alternatives. Use IE mode only for remaining, critical sites and plan a sunset timeline.
Can a home user safely use IE mode in Edge?
Yes for testing purposes, but in a home environment you should still follow basic security hygiene: keep Windows and Edge up to date, use a reputable VPN when accessing any sensitive data, and avoid exposing internal networks to public networks whenever possible.
What’s the best way to document my IE mode deployment?
Maintain an up-to-date EMSL, a changelog of sites added or removed, and a policy map showing which devices have which EMSL version. Include VPN usage notes where applicable.