DDoS protection services for businesses
A DDoS attack does not need to penetrate a system or steal data to cause serious damage. By generating enough malicious traffic or requests, attackers can saturate network bandwidth, overload firewalls, slow down websites, or make APIs unavailable to legitimate users.
DDoS protection services help businesses detect abnormal traffic, mitigate malicious requests, and maintain service availability. A suitable protection architecture may combine multiple layers such as upstream DDoS mitigation, CDN, WAF, firewall, rate limiting, bot management, and API protection instead of relying on a single device.
For organizations whose websites, applications, or APIs directly serve customers, DDoS protection is therefore not only a cybersecurity issue but also a matter of uptime and business continuity.
Why should businesses proactively protect against DDoS attacks?
The scale of DDoS attacks is increasing rapidly, but their speed is equally concerning.
According to the Cloudflare DDoS Threat Report H1 2026, published on August 11, 2026, Cloudflare mitigated 935 network-layer DDoS attacks exceeding 1 Tbps during the first half of 2026. In Q2 alone, there were 805 such attacks, representing a 519% increase compared with Q1. At the same time, 90.6% of the network-layer DDoS attacks observed by Cloudflare ended in less than 10 minutes. These figures reflect activity on Cloudflare’s network and do not represent the entire Internet, but they demonstrate how quickly attacks can unfold and why fully manual response processes may not react fast enough.
At the application layer, Akamai’s Apps, APIs, and DDoS 2026 report recorded a 104% increase in Layer 7 DDoS attacks between 2023 and 2025. This shows that DDoS is no longer simply a question of “who has more bandwidth.” Attacks can directly target websites, APIs, and application processing resources.
Businesses can also refer to IPSIP’s analysis of DDoS attack trends in the first half of 2026. The analysis highlights the growth of DNS Flood, CLDAP Flood, and very short-duration DDoS attacks.
What do DDoS protection services protect?
The goal of DDoS protection is not simply to block as much traffic as possible. If protection policies are too aggressive, legitimate customers may also be denied access.
The more important objective is to filter or limit malicious traffic while maintaining access for legitimate users.
Depending on the organization’s architecture, assets that may require protection include:
Corporate websites and e-commerce websites.
Customer-facing web applications.
APIs connecting mobile applications or business partners.
DNS and other Internet-facing services.
Public IP addresses, servers, and systems hosted in data centers.
Cloud and hybrid cloud infrastructure.
Transaction portals, payment systems, and other services requiring high availability.
Businesses should also distinguish between different DDoS layers because each type of attack can create a different bottleneck.
DDoS Type | Typical Target | Potential Impact | Protection Layers to Consider |
Volumetric | Internet bandwidth | Saturates network links | Upstream mitigation, scrubbing, CDN |
Protocol / Network | Router, firewall, network stack | Exhausts connection or device resources | Network mitigation, filtering |
Application Layer | Website, API, application | Exhausts CPU, memory, connections, or database resources | WAF, rate limiting, bot/API protection |
For this reason, evaluating a DDoS solution based only on a metric such as “how many Gbps it can handle” is not sufficient.
How do DDoS protection services work?
A typical DDoS protection model includes several stages, from anomaly detection to mitigation and post-incident optimization.
1. Traffic monitoring
The system monitors metrics such as bandwidth, packet rate, request rate, connection volume, traffic sources, and the endpoints being accessed.
2. Anomaly detection
Current traffic is compared with established baselines or known attack indicators to identify abnormal behavior.
This step is important because a sudden traffic spike does not necessarily mean a DDoS attack. A flash sale, marketing campaign, or online event can also create a legitimate surge in traffic.
3. Traffic classification
The system needs to distinguish legitimate users from bots, malicious requests, or traffic flows exhibiting attack characteristics.
4. Mitigation activation
Depending on the attack vector, malicious traffic may be filtered or mitigated at the upstream provider, CDN, scrubbing infrastructure, WAF, firewall, or application protection layer.
5. Monitoring during the attack
A DDoS campaign may change its attack vector over time. Once the initial technique is mitigated, attackers may shift from the network layer to the website or API.
6. Post-incident analysis
Network logs, firewall logs, WAF logs, DNS data, and application telemetry should be reviewed to identify bottlenecks and improve protection policies.
An IPSIP case study on DDoS incident response and mitigation shows that effective DDoS defense requires a combination of capacity planning, traffic analysis, web/API protection, security monitoring, and an Incident Response process rather than simply “blocking IP addresses.”
IPSIP provides DDoS protection services for businesses
IPSIP Vietnam provides DDoS protection services for businesses, helping protect websites, applications, APIs, and other Internet-facing systems from disruption caused by distributed denial-of-service attacks.
Instead of applying the same configuration to every organization, a DDoS protection strategy should be designed around the actual infrastructure: which systems need protection, what normal traffic looks like, current bandwidth capacity, existing firewall/WAF/CDN layers, and where bottlenecks are likely to appear during an attack.
IPSIP’s DDoS protection service can be structured around the following areas:
Assessment of assets and infrastructure requiring protection
IPSIP works with the internal IT team to identify websites, APIs, public IP addresses, DNS services, and other critical Internet-facing systems, while reviewing the areas most likely to become overloaded.
Development of an appropriate DDoS protection strategy
Depending on the system type and risk profile, the architecture may combine DDoS mitigation with CDN, firewall, WAF, rate limiting, API protection, or other security controls.
Integration with the organization’s existing infrastructure
If a business already uses firewalls, cloud services, or CDN platforms, deployment does not necessarily require replacing the entire infrastructure. The objective is to determine which existing protection layers can be retained and which gaps still need to be addressed.
Monitoring and coordinated incident response
IPSIP has the capability to monitor infrastructure and cybersecurity through NOC/SOC operations and can coordinate with the organization’s internal IT team depending on operational requirements.
Post-attack review and optimization
After an incident, traffic patterns, request rates, targeted endpoints, and relevant logs should be analyzed to improve protection measures for future attacks.
The goal of the service is not to promise that a system will “never be affected by DDoS,” but to build appropriate detection, mitigation, and coordinated response capabilities based on the importance of the service and the organization’s actual architecture.
Is a firewall enough to stop DDoS attacks?
Not in every situation.
A firewall or Next-Generation Firewall is an important component of a cybersecurity architecture, but a firewall is not the same as a complete Anti-DDoS solution.
For example, if an organization has a 1 Gbps Internet connection while a volumetric DDoS attack generates traffic well above that capacity, the Internet link may become saturated before the traffic even reaches the firewall.
In that situation, adding more firewall rules inside the network does not solve the upstream bottleneck.
For volumetric DDoS attacks, businesses may therefore require mitigation at the ISP, cloud, CDN, or scrubbing infrastructure layer before malicious traffic reaches the internal environment.
Firewalls are still necessary for network traffic control, policy enforcement, and coordination with other security layers. Businesses that require continuous firewall management and optimization can refer to IPSIP’s Managed Firewall 24/7 service. IPSIP positions Managed Firewall as a service focused on management, monitoring, policy optimization, and alert handling rather than simply deploying firewall hardware.
7 criteria for choosing a DDoS protection service
When evaluating a DDoS protection service, businesses should clarify at least seven key areas.
1. Which layers are protected? Does the solution protect Layer 3/4, Layer 7, or both?
2. Which assets are included in scope? Which websites, APIs, DNS services, public IP addresses, and other systems are protected?
3. How is malicious traffic detected and mitigated? Businesses should understand the actual detection and mitigation mechanism rather than evaluating only the product name.
4. Where are volumetric attacks mitigated? If attack traffic exceeds the organization’s available bandwidth, mitigation must occur before the bottleneck.
5. How are existing systems integrated? Firewall, WAF, CDN, cloud infrastructure, and API gateways should operate as part of a coordinated architecture.
6. What is the escalation process during an incident? Who receives alerts? Who adjusts policies? When should the ISP or cloud provider become involved?
7. Is there post-incident reporting and optimization? DDoS mitigation should not end when traffic returns to normal. Businesses need to understand the attack vector, weaknesses identified, and recommended next steps.
SLAs should also be evaluated based on the actual scope of commitments rather than marketing claims such as “automatic DDoS protection” or “very high capacity.”
When should businesses deploy DDoS protection services?
Businesses should consider DDoS protection when the availability of Internet-facing services has a direct impact on operations or revenue.
Typical situations include:
Websites or applications directly generate revenue.
APIs serve customers or connect business partners.
Transaction or payment portals require high availability.
The organization operates multiple Internet-facing services.
There are SLA commitments to customers.
The business has previously experienced DDoS attacks or abnormal traffic.
The internal IT team cannot continuously monitor and handle network incidents.
Existing bandwidth or firewall capacity is clearly limited during large traffic spikes.
The cost of downtime is significantly higher than the cost of preventive protection.
Businesses can also review solutions for reducing downtime risks to assess DDoS within the broader context of Business Continuity.
A key consideration is that businesses should not wait until a website is already offline before evaluating DDoS protection. With attacks that may last only a few minutes, organizations may not have enough time to contact providers, change routing, or deploy a new protection architecture after the attack has already begun.
Conclusion
DDoS protection services help businesses improve the availability of websites, applications, and APIs against malicious traffic that can overload bandwidth, network devices, or application resources.
An effective strategy should not rely on a single security tool. Organizations should consider upstream mitigation, CDN, firewall, WAF, API protection, monitoring capabilities, and Incident Response processes as part of a coordinated architecture.
IPSIP Vietnam provides DDoS protection services for businesses, supporting organizations in assessing their current environment, developing an appropriate protection strategy, and coordinating with internal IT teams during deployment, monitoring, and incident response.
If your business operates critical websites, APIs, or Internet-facing systems, the first step should be to identify the assets that require protection, understand the limitations of the existing infrastructure, and define DDoS scenarios that could disrupt operations.
Organizations looking to assess or deploy a suitable solution can contact IPSIP Vietnam to discuss their project and develop an approach aligned with their architecture, risk profile, and operational requirements.
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References
Cloudflare - DDoS Threat Report H1 2026, công bố ngày 11/8/2026.
Akamai - Apps, APIs, and DDoS 2026 / State of the Internet Security Report.
IPSIP Việt Nam - Tấn công DDoS tăng mạnh, 935 đợt vượt ngưỡng 1 Tbps trong nửa đầu năm 2026.
IPSIP Việt Nam - Case study về quy trình ứng phó và xử lý sự cố tấn công DDoS.
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