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• Cybersecurity Glossary

What is a Secure Web Gateway (SWG)?

A Secure Web Gateway (SWG) is a cybersecurity solution that sits between users and the internet, inspecting web traffic to enforce security policies and block threats before they reach the network. Acting as a checkpoint, it applies URL filtering, anti malware inspection and Application control, allowing or denying access to websites, applications and downloads based on policy and reputation. Delivered from the cloud, the SWG is a core component of SASE, letting distributed users and branches connect directly and safely to the internet. This page explains how an SWG works, how it differs from a firewall, its role in SASE, and how Teldat delivers these capabilities through be.Safe Pro.

1Secure Web Gateway defined2How a Secure Web Gateway works3Core features and capabilities4SWG versus firewall and NGFW5The role of SWG in SASE6Common use cases7Key benefits of a cloud SWG8Secure Web Gateway with Teldat9Frequently asked questions – FAQ’s

Secure Web Gateway (SWG) defined

A Secure Web Gateway (SWG) is a security solution that acts as a checkpoint between an organization’s users and the internet. Every web request, visiting a site, using a web application, downloading a file, passes through the gateway, which inspects it and decides whether to allow or block it according to security policies. In effect, it is a virtual security guard for all web access.

Its purpose is to protect users and the network from web borne threats while giving the organization control over how the internet is used. It does this by filtering URLs against reputation and category databases, scanning content and downloads for malware, and controlling which web applications are permitted. Connections are granted or denied based on the security reputation of the destination and on the policies the organization defines, and the data exchanged can be analyzed to stop threats before they arrive.

Modern secure web gateways are delivered from the cloud rather than as an on premise appliance, which lets distributed users and branch offices connect directly and safely to the internet without routing everything through a central data center. This cloud model makes the SWG a core building block of SASE, and it is how Teldat delivers web security through be.Safe Pro, its cloud security service.

How a Secure Web Gateway (SWG) works?

An SWG works by intercepting web traffic and inspecting it in real time before allowing it to continue. The process follows a consistent set of steps, whether traffic comes from an office, a branch or a remote worker.

1
Traffic is Redirected to the gateway
Users and branch offices connect to the SWG through a secure tunnel, such as IPsec, or through an agent on mobile devices. All outbound web requests are routed to the gateway first, so nothing reaches the internet without passing inspection, regardless of where the user is located.
2
Requests are Inspected against policy
The gateway checks each request against URL and reputation databases, security policies and threat intelligence. It evaluates the category and reputation of the destination and the type of content requested, deciding in real time whether the request is safe and permitted or should be stopped.
3
Content is Scanned for threats
For permitted requests, the gateway scans the content and any downloads for malware, phishing and other threats, often decrypting SSL traffic to inspect what would otherwise be hidden. Machine learning and threat analytics assess sites and files for risk, catching dangers that simple blocklists would miss.
4
Safe traffic is Allowed, threats blocked
Clean, policy compliant traffic is forwarded to its destination and back to the user, while requests that violate policy or match a threat are blocked. All of this is enforced from a central point, so the same protection applies consistently to every user and site.

Core features and capabilities

A Secure Web Gateway brings together several security functions in one place. These are the core capabilities that define an SWG, and the ones Teldat includes in be.Safe Pro.

1
URL Filtering
The gateway checks every destination against category and reputation databases, allowing or blocking access to websites according to policy. This keeps users away from malicious, inappropriate or non compliant sites, and lets the organization enforce acceptable use consistently across all locations.
2
Anti Malware inspection
Content and downloads are scanned to detect and block malware, phishing, spyware, crypto mining and ransomware before they reach the user. Backed by large threat databases and analytics, this inspection defends against threats that evolve daily, well beyond what static rules alone could stop.
3
Application Control
Beyond whole websites, the gateway can allow, restrict or block specific web and cloud applications. This gives granular control over tools such as SaaS platforms, so an organization can permit sanctioned applications while limiting risky or unsanctioned ones, protecting data and productivity alike.
4
Because most web traffic is now encrypted, the gateway can decrypt and inspect SSL traffic to reveal threats hidden inside. Without this, malware and data leaks could pass unseen; with it, the SWG maintains visibility over encrypted connections while re encrypting legitimate traffic on its way through.
5
Centralized Policy and reporting
All of these controls are defined and enforced from a single management console, giving one consistent policy across every user and site plus central visibility of web activity. This unified control is what makes an SWG practical to operate at scale across a distributed organization.

SWG vs firewall and NGFW

A common question is how a Secure Web Gateway relates to a firewall. They operate at different levels and are complementary rather than interchangeable. The table sets out the distinction.

Dimension Secure Web Gateway Firewall and NGFW
Primary focus Web and cloud traffic content All network traffic across ports and protocols
Level of operation Application and content, web focused Network level, plus application aware in NGFW
Typical controls URL filtering, malware scan, app control Port and protocol rules, IPS, deep inspection
Main question answered Is this website or download safe? Should this connection be allowed at all?
Role in SASE Secures web and cloud access Broad traffic control and threat prevention

Complementary, not competing: an SWG and an NGFW solve different parts of the same problem. The SWG specializes in securing web and cloud access, while the Next Generation Firewall provides broad, application aware control and threat prevention across all traffic. In a SASE architecture they work together, delivered from the cloud, which is exactly how Teldat combines Secure Web Gateway and NGFW capabilities within be.Safe Pro.

The role of SWG in SASE

The Secure Web Gateway does not work in isolation; it is one pillar of SASE, Secure Access Service Edge, which converges networking and security into a single cloud delivered service. Understanding this relationship explains why the SWG is delivered the way it is today.

1
One pillar of the SASE Stack
SASE brings together SD-WAN, Secure Web Gateway, Next Generation Firewall and Zero Trust Network Access as cloud services. Within that stack, the SWG provides the web filtering and threat inspection layer, working alongside the other functions to deliver security and connectivity as one integrated whole.
2
Direct, secure Internet access
Because the SWG lives in the cloud, remote users and branches connect straight to the internet and cloud applications without backhauling traffic to a central data center. This removes the bottlenecks and latency of the old model while keeping full security inspection on every connection.
3
Consistent policy Everywhere
Delivered as part of SASE, the SWG applies the same security policy to every user wherever they are, in the office, at a branch or working remotely. Security is no longer tied to a physical location, which matches how modern, distributed organizations actually operate.
4
Integration with SD-WAN and XDR
The SWG gains power when tied to SD-WAN for optimized routing and to XDR for detection and response. Together they form a coherent ecosystem where connectivity, web security and threat visibility reinforce each other, rather than a set of disconnected point products.

Common Use Cases

Secure web gateways solve real, everyday problems for organizations of many kinds. These are some of the most common scenarios where an SWG proves its value, each supported by Teldat solutions.

1
Securing Branch offices and remote sites
Organizations with dispersed offices, in finance, insurance, retail, healthcare or public administration, let each site connect directly to the internet safely, without routing traffic back to headquarters. The SWG enforces the same protection everywhere, so a growing branch network does not mean growing risk.
2
Protecting Remote and hybrid workers
Employees working from home or on the move connect through the SWG, via an agent or tunnel, and receive the same web protection as if they were in the office. This closes the gap that remote work opens, keeping distributed staff safe without forcing their traffic through a central choke point.
3
Enabling safe SaaS and Cloud adoption
As organizations adopt cloud tools such as Office 365 and other SaaS applications, the SWG monitors and controls this traffic, permitting sanctioned apps while blocking risky ones. It lets businesses embrace cloud productivity without losing visibility or control over how data leaves the organization.
4
Managed security for Carriers and integrators
Carriers and system integrators offer web security as a service to their own customers, especially smaller businesses that need strong protection but lack in house expertise. A multi tenant, cloud based SWG lets them serve many clients from one platform, adding security to their existing connectivity offering.

Key benefits of a cloud SWG

Delivering the Secure Web Gateway from the cloud, rather than as an on premise box, brings advantages that matter for security, cost and operations alike. These are the benefits that make the cloud model the standard today.

1
Scalability and Simple deployment
A cloud SWG scales on demand and deploys almost instantly, with no hardware to install at each site. A pay as you grow model lets organizations expand protection at their own pace, adding users and locations without the delay and cost of provisioning physical appliances.
2
Continuous Updates and low maintenance
The cloud service is kept current automatically, with the latest threat intelligence and features applied without customer effort. There are no patches, restarts or energy costs to manage, so protection stays up to date against evolving threats while operational overhead stays minimal.
3
Lower Latency and better performance
With points of presence close to users, a cloud SWG inspects traffic near where it originates instead of forcing it through a distant data center. This direct path reduces latency and eliminates the congestion of backhauling, giving users fast access to the internet and cloud services.
4
Centralized Control and visibility
A single management console governs the whole network, giving one place to set policy and see web activity across every user and site. This unified visibility and control, needing only a browser, makes it practical to secure a large, distributed organization consistently.

Secure Web Gateway (SWG) with Teldat

Teldat delivers Secure Web Gateway capabilities through be.Safe Pro, its cloud security service within a SASE platform. Combining SWG and Next Generation Firewall functions, be.Safe Pro secures web and cloud access for branches and remote users, integrated with Teldat SD-WAN and operated under European jurisdiction.

1
be.Safe Pro Cloud security service
be.Safe Pro is Teldat’s cloud delivered SSE service, providing Secure Web Gateway and NGFW capabilities as part of a SASE platform. Remote users connect through an IPsec tunnel and mobile users through an SSL VPN agent, so every location gets full web security without on premise hardware.
2
Complete Web protection features
The service applies URL filtering, anti malware inspection, application control and SSL scanning, allowing or blocking connections by the reputation of sites and applications or by policy. It analyzes the data exchanged to stop threats before they reach branches or remote users.
3
Backed by Teldat Threat intelligence
be.Safe Pro integrates with the largest threat analysis databases on the internet, powered by Teldat Threat Intelligence and machine learning. This lets it assess sites and files for risk in real time and defend against the phishing, ransomware and other threats that emerge every day.
4
Dedicated Private cloud per customer
Unlike shared services, be.Safe Pro gives each customer a unique private cloud infrastructure with no shared IP addresses and reserved resources. This tailored design enhances privacy, security and reliability while keeping the ease, scalability and low cost of ownership of a cloud service.
5
Integrated Ecosystem and single console
be.Safe Pro is hardware agnostic and forms a cohesive ecosystem with Teldat SD-WAN and be.Safe XDR, managed from one console needing only a browser. With a pay as you grow model, points of presence across five continents and European jurisdiction, it scales security at the customer’s pace.

Why deliver the SWG as part of a platform: a Secure Web Gateway is most effective when it works with the network around it. Because Teldat delivers SWG and NGFW together in be.Safe Pro, integrated with SD-WAN and be.Safe XDR and backed by Teldat Threat Intelligence, organizations get web security, connectivity and threat visibility as one coherent service, scalable, cloud based and under European jurisdiction.

FAQ’s about Secure Web Gateways

❯ What is a Secure Web Gateway in simple terms?

A Secure Web Gateway is a security checkpoint that sits between users and the internet, inspecting all web traffic before it is allowed through. Think of it as a virtual security guard for web access: every request to visit a website, use a web application or download a file passes through it, and the gateway allows or blocks that request based on security policies and the reputation of the destination. It filters out malware, phishing and access to unsafe or non compliant sites, so users can browse and use cloud services while the organization keeps control over what enters the network.

❯ How does a Secure Web Gateway work?

An SWG intercepts web traffic and inspects it in real time before forwarding it. Users or branch offices connect to the gateway, typically through a secure tunnel or an agent, and their outbound web requests are routed through it. The gateway then applies several checks: URL filtering against category and reputation databases, anti malware scanning of content and downloads, application control to allow or restrict specific web apps, and often SSL inspection to examine encrypted traffic. Requests that violate policy or match known threats are blocked, while clean traffic is passed through, all enforced from a central point.

❯ What is the difference between an SWG and a firewall?

A traditional firewall controls traffic based on ports, protocols and IP addresses, deciding what may enter or leave the network at a network level. A Secure Web Gateway operates higher up, focused specifically on web traffic and its content, filtering URLs, scanning downloads and controlling web applications. In practice the two are complementary rather than competing: a Next Generation Firewall adds deep, application aware control across all traffic, while the SWG specializes in securing web and cloud access. In a SASE architecture both are delivered together from the cloud, as Teldat does by combining SWG and NGFW in be.Safe Pro.

❯ How does a Secure Web Gateway fit into SASE?

SASE, Secure Access Service Edge, converges networking and security into a single cloud delivered service, and the Secure Web Gateway is one of its core security functions. Alongside NGFW, Zero Trust Network Access and SD-WAN, the SWG provides the web filtering and threat inspection layer, letting remote users and branches connect directly to the internet and cloud without backhauling traffic to a central data center. This removes bottlenecks and latency while keeping consistent security everywhere, which is why SWG is delivered as part of an integrated SASE platform rather than as an isolated appliance.

❯ Why do organizations need a Secure Web Gateway?

Organizations need an SWG because work has moved to the cloud and the traditional network perimeter has dissolved. Employees use SaaS tools and browse the internet from branches and remote locations, and each connection is a potential entry point for malware, phishing or data loss. Routing all this traffic through a central data center for inspection causes congestion and latency, so a cloud based SWG lets distributed users connect directly and safely instead. It enforces consistent security policy across the whole organization, protects against constantly evolving web threats, and gives central visibility and control over web and cloud usage.

❯ How does Teldat deliver Secure Web Gateway capabilities?

Teldat delivers SWG capabilities through be.Safe Pro, its cloud security service within a SASE platform. be.Safe Pro combines Secure Web Gateway and Next Generation Firewall functions, applying URL filtering, anti malware inspection, application control and SSL scanning, backed by Teldat Threat Intelligence and the largest threat databases. It is hardware agnostic, integrates seamlessly with Teldat SD-WAN and be.Safe XDR, and gives each customer a dedicated private cloud with no shared IP addresses. Managed from a single console with a pay as you grow model and points of presence across five continents, it is operated under European jurisdiction.

Secure your web and cloud access with Teldat and Secure Web Gateway

be.Safe Pro delivers Secure Web Gateway and NGFW capabilities from the cloud, integrated with Teldat SD-WAN and be.Safe XDR, backed by Teldat Threat Intelligence and operated under European jurisdiction.