Replacing DNS Filtering: Why an On-Device SWG Is the Architectural Upgrade

The short answer

If you're replacing a traditional DNS filtering tool like Cisco Umbrella, DNSFilter, or WebTitan, don't just swap one resolver for another. The real upgrade is architectural: move from filtering domain names at a resolver to inspecting full web sessions on the device.

dope.security is an on-device secure web gateway (SWG). It performs URL filtering and SSL inspection locally on Mac and Windows endpoints, which gives you three things DNS filtering structurally can't:

• Depth: policy on the full URL, the file, and the signed-in account, not just the domain
• Reach: the same enforcement on every network, with no resolver to point at and no roaming client
• Directness: full inspection without backhauling traffic to a cloud proxy data center

DNS filtering was built for a network perimeter. dope.security is built for the device, which is where the perimeter lives now.

Why DNS filtering hits an architectural ceiling

DNS filtering isn't a bad product category. It's a limited one, and the limits come from where it sits.

A DNS filter makes its decision at the moment a device resolves a name. That's before any encrypted connection is opened, so the filter never sees the path, the payload, or the user's account. No amount of better threat intelligence fixes that, because the information simply isn't there at the DNS layer. (Beyond DNS filtering: why URL, TLS, and DLP belong at the endpoint.)

The practical result for IT teams:

1. Coarse decisions. One verdict per domain. Shared platforms like Google Drive, OneDrive, and ChatGPT are allow-all or block-all.
2. No data protection. DNS never sees content, so it can't power DLP.
3. No tenant control. It can't tell your corporate Microsoft 365 or ChatGPT tenant from a personal account.
4. Easy to route around. Encrypted DNS (DoH) in browsers and apps can send lookups to resolvers your filter doesn't control. (More on the encrypted DNS bypass.)
5. Getting harder over time. Privacy features like Encrypted Client Hello keep shrinking what network-level tools can observe. (The ECH blind spot for DNS filtering.)

The upgrade path most vendors offer, and why it's a detour

Most DNS filtering vendors answer those gaps the same way: buy a higher tier that adds a cloud SWG. Your traffic then gets backhauled through the vendor's data center so it can be decrypted and inspected there.

That closes the visibility gap, but it introduces new problems:

• Latency for every request, especially for remote and traveling users far from a point of presence
• Data center dependency, so their outage becomes your outage
• Third-party decryption, where your traffic is opened in infrastructure you don't control
• More plumbing, like roaming clients, tunnels, or PAC files, on top of what you already manage

You end up paying more to add a stopover. (SSL decryption in 2026: where it happens decides what it costs.)

The on-device architecture: full inspection, no stopover

dope.security takes a different path. The secure web gateway runs on the endpoint. URL filtering, SSL inspection, and Cloud App Control all happen locally, then traffic flies direct to the internet.

The on-device model is the only one that gives you full-session visibility without putting a data center in the path.

What you gain by replacing DNS filtering with dope.security

Page-level URL filtering instead of domain-level guessing

Allow, warn, or block across 80+ categories, with custom categories and per-group overrides. Because dope.security sees the full URL, you can allow a domain and still block the risky page on it. (What is URL filtering?)

SSL inspection that never leaves the laptop

dope.security's on-device SSL proxy decrypts and inspects traffic locally. Your data isn't sent to a third-party data center to be opened, which is better for privacy and data residency. (On-device vs. cloud SSL inspection and privacy.)

Tenant-level control for SaaS and AI

Cloud Application Control lets you keep corporate ChatGPT, Claude, Google, and Microsoft 365 open while blocking personal accounts. DNS can't do this, because it never sees the account.

Data protection that reads the content

Dopamine DLP classifies uploads to the web and to AI tools by meaning (PII, PCI, PHI, and intellectual property) without regex rules or policy configuration.

One agent, one console, instant policy

No resolver to point, no roaming client to license. Policy changes push to every device instantly, and SSL inspection, URL filtering, Cloud App Control, anti-malware, and Shadow IT discovery all live in dope.console.

How to replace your DNS filter in five steps

1. Start a free production trial with Google or Microsoft SSO. No payment method required.
2. Map your DNS categories and block lists to dope.console categories and custom categories, now enforced at the URL level.
3. Add what DNS couldn't do: Cloud App Control for corporate AI and SaaS tenants, plus SSL bypasses for apps that use certificate pinning.
4. Deploy the agent through your MDM (Intune, Jamf) to a pilot group, then expand in waves. (Intune and Jamf MDM playbook.)
5. Retire the DNS filter: remove roaming clients and point network and device DNS back to your standard resolvers.

Real teams move fast. One Cisco Umbrella customer migrated 2,000 machines in two days, and Outreach Health secured 99% of devices in one week. For a vendor-specific walkthrough, see how to replace Cisco Umbrella or replacing WebTitan.

FAQ

Why is an on-device SWG better than DNS filtering?

DNS filtering only sees the domain name at lookup time. An on-device SWG inspects the full HTTPS session on the endpoint, so it can filter by URL, inspect files and content, and tell corporate accounts from personal ones, without routing traffic through a data center.

Isn't a cloud SWG upgrade from my DNS vendor the same thing?

It closes the visibility gap, but it does it by backhauling your traffic to the vendor's data center for decryption. That adds latency and a dependency on their infrastructure. dope.security inspects on the device, so traffic goes direct.

Do I still need DNS filtering if I have dope.security?

For web security, no. dope.security's URL filtering, SSL inspection, and anti-malware run on the full session, which covers what a DNS filter did and adds visibility it couldn't provide.

Does dope.security work off-network without a roaming client?

Yes. The same lightweight agent enforces policy on the device everywhere, on-network or off, and keeps enforcing cached policies if the device goes offline.

Which DNS filtering tools can dope.security replace?

dope.security is commonly evaluated as a replacement for DNS-layer tools like Cisco Umbrella and DNSFilter, as well as web filters like WebTitan.

Make the architectural upgrade

Stop filtering names and start inspecting sessions, without adding a stopover. Sign in with your Google or Microsoft corporate account and you'll be running dope.swg in minutes, full SSL inspection included.

Start your free trial or book a 20-minute demo.