Top 10 Application Delivery Controllers (ADC)
Explore the leading Application Delivery Controllers with key features including load balancing, application performance optimization, and security features for networks, servers, and web applications.
Written by
Joel Witts
Technical Review by
Laura Iannini
Quick Summary
For enterprises managing endpoints completely, Radware Alteon Application Delivery And Security load balancing handles traffic spikes reliably across hybrid cloud and on-premise deployments.
If you need specialized capabilities, A10 Thunder Application Delivery Controller AXAPI enables direct CI/CD pipeline integration for automated infrastructure management.
For teams deploying across multiple platforms, AWS Elastic Load Balancing automatic scaling handles traffic spikes without manual capacity planning.
Application delivery controllers became infrastructure table stakes when workloads split across cloud and on-premises. Load balancing alone doesn’t cut it anymore. Teams need traffic management that handles SSL offloading, content routing, application layer protection, and disaster recovery all from one console.
The real problem isn’t finding an ADC. It’s finding one that matches your performance requirements, integrates with your specific infrastructure, and won’t bloat your operational overhead. Some solutions compete on simplicity for mid-market teams without dedicated load balancing engineers. Others target enterprises with complex requirements and pricing to match. Still others embrace open-source flexibility for teams with strong infrastructure expertise. Get the fit wrong, and you’re either overpaying for features you don’t use or dealing with performance bottlenecks that slow application delivery.
We evaluated 10 application delivery controllers, evaluating each for traffic handling performance, SSL/TLS capabilities, policy configuration usability, DDoS protection, and deployment flexibility. We reviewed customer feedback and deployment patterns to validate vendor claims against operational reality. What we found: the gap between marketing claims and actual performance under load can be significant. Several platforms that look comparable in specs behave very differently once you’re routing production traffic.
This guide gives you the testing insights and decision framework to choose an ADC that handles your traffic without creating operational headaches or unexpected costs.
Our Recommendations
Your ideal platform depends on whether you need a unified solution or specialized focus.
- Best For Unified Management: Radware Alteon Application Delivery And Security load balancing handles traffic spikes reliably across hybrid cloud and on-premise deployments.
- Best For Specialized Needs: A10 Thunder Application Delivery Controller AXAPI enables direct CI/CD pipeline integration for automated infrastructure management.
- Best For Platform Diversity: AWS Elastic Load Balancing automatic scaling handles traffic spikes without manual capacity planning.
- Best For Enterprise Scale: Microsoft Azure Application Gateway integrated WAF protects against SQL injection and XSSwithout separate tooling.
- Best For Targeted Use Cases: Barracuda Load Balancer ADC web interface enables faster configuration than cli-dependent competitors.
Radware Alteon is an application delivery controller (ADC) built for enterprises managing traffic across hybrid environments. It combines load balancing, SSL offloading, and application security in a single platform. If you need unified traffic management with built-in DDoS protection, this targets that use case directly.
Traffic Management That Scales Under Pressure
We found the load balancing capabilities handle traffic spikes without drama. The platform distributes workloads across cloud, virtual, and on-premise deployments from one management interface. SSL offloading shifts encryption overhead away from your application servers, which translates to real performance gains.
The analytics provide clear visibility into traffic patterns. We saw this as particularly useful for troubleshooting bottlenecks before they escalate. Built-in DDoS and application layer protections add security without bolting on separate tools.
What Long-Term Users Report
Customers consistently praise the core reliability. One user ran the platform for ten years with positive results. The GUI and CLI interfaces get high marks for clarity once you learn them.
The tradeoffs emerge at scale. Users flag advanced configurations as tricky, especially for teams without deep networking experience. Some customers mention software bugs requiring patches and upgrade processes that take longer than expected. Support quality varies: some report fast, knowledgeable responses while others wait longer on complex issues.
Right Fit for Network-Savvy Teams
We think Alteon works best for enterprises with dedicated network engineering staff. The learning curve is real, but the payoff is a stable, flexible ADC. If your team lacks load balancer experience, budget extra time for onboarding. The Global Elastic Licensing model helps control costs as your capacity needs shift.
Strengths
- Load balancing handles traffic spikes reliably across hybrid cloud and on-premise deployments
- Unified management console controls traffic and security policies from one interface
- SSL offloading delivers measurable performance improvements for application servers
- Flexible licensing model adapts to shifting capacity without overpaying
Cautions
- Some users report that steep learning curve for advanced configurations requires experienced network staff
- According to customer feedback, Firmware upgrades and patching processes take more time than competitors
A10 Thunder Application Delivery Controller
A10 Thunder ADC is an L4-7 load balancer built for organizations running applications across hybrid and multi-cloud environments. It bundles traffic management, acceleration, and security into one platform. The target spans startups to large enterprises and service providers needing multi-tenant capabilities.
DevOps-Ready Load Balancing
We found the AXAPI integration stands out for teams running CI/CD pipelines. You can automate server patching and configuration changes without manual intervention. The aFleX scripting engine gives your team flexibility to customize traffic handling for specific application needs.
Acceleration features hit the expected marks: SSL offloading, TCP connection multiplexing, RAM caching, and GZIP compression. We saw the SSL offload as particularly strong for reducing backend server load. DDoS protection comes standard across all appliances rather than as an add-on.
What Customers Are Saying
Customers report exceptional uptime. One user ran Thunder ADC for six years without a single failure. Others describe deployment as uncomplicated with high performance and no glitches. The consensus points to a mature, stable product that handles production workloads without drama.
The feedback skews overwhelmingly positive, which makes identifying weaknesses harder.
When Thunder ADC Makes Sense
We think this fits organizations prioritizing API-driven automation and long-term stability. If your team already runs CI/CD workflows, the AXAPI integration accelerates adoption. Smaller shops should evaluate whether the feature set exceeds their actual requirements before committing.
Strengths
- AXAPI enables direct CI/CD pipeline integration for automated infrastructure management
- Six-plus years of reported uptime from long-term users signals production reliability
- DDoS protection included as standard across all appliance models
- aFleX scripting allows custom traffic handling without vendor dependency
Cautions
- Some customer reviews note that feature density may exceed requirements for smaller or simpler environments
- Limited critical feedback makes independent weakness assessment difficult
AWS Elastic Load Balancing
AWS Elastic Load Balancing distributes traffic across EC2 instances, containers, and IP addresses within the AWS ecosystem. It targets teams already invested in AWS who need managed load balancing without infrastructure overhead. The platform supports four load balancer types: Application, Network, Gateway, and Classic.
Native AWS Integration Done Right
We found the automatic scaling removes significant operational burden. Traffic spikes trigger capacity increases without manual intervention. Health checks route requests only to healthy targets, and graceful draining handles instance removal cleanly during deployments.
The Application Load Balancer supports path-based and host-based routing, letting multiple services share a single endpoint. This works particularly well for microservice architectures running in ECS or EKS. SSL/TLS termination integrates directly with AWS Certificate Manager, centralizing certificate handling. CloudWatch monitoring provides real-time visibility into performance and target health.
Operational Friction Points
Customers flag configuration complexity as a recurring theme. Setting up listeners, target groups, and health checks requires careful attention. Advanced routing rules often push teams toward CLI or CloudFormation rather than the console UI.
Cost visibility frustrates users managing unpredictable traffic. The pricing model splits charges across usage hours, data processed, and LCU consumption. High-traffic scenarios can generate unexpected bills. Troubleshooting connection issues proves difficult because logs lack clarity for diagnosing problems quickly.
Best for AWS-Native Environments
We think ELB fits teams running production workloads entirely within AWS. The managed service tradeoffs make sense when you prioritize operational simplicity over granular control. If your architecture spans multiple clouds, evaluate whether AWS lock-in aligns with your strategy.
Strengths
- Automatic scaling handles traffic spikes without manual capacity planning
- Path and host-based routing consolidates multiple services behind one endpoint
- Native CloudWatch integration delivers real-time health and performance visibility
- Managed service eliminates load balancer infrastructure maintenance entirely
Cautions
- Based on customer reviews, Pricing model lacks transparency for high-traffic or unpredictable workloads
- Users find that advanced routing configuration often requires CLI or CloudFormation over console
Microsoft Azure Application Gateway
Azure Application Gateway delivers Layer 7 load balancing as a managed service for organizations running web applications in Azure. It targets teams needing application-aware traffic routing with integrated security. The 99.95% uptime SLA for multi-instance deployments backs the availability promise.
Layer 7 Routing With Built-In Protection
We found the URL-based and cookie-based routing provides precise control over traffic distribution. Path routing directs requests to different backend pools based on URL structure, which works well for microservice architectures. Session affinity keeps users connected to the same backend server when needed.
The integrated Web Application Firewall protects against common threats like SQL injection and cross-site scripting (XSS) without deploying separate infrastructure. SSL termination offloads encryption overhead from backend servers. Integration with Azure Monitor and Security Center centralizes health reporting and alerting across your environment.
Where Complexity Creeps In
Customers consistently flag the learning curve as steep. Configuration requires understanding multiple interconnected features, and the portal UI can feel cluttered when managing resources. Some users find the dashboard navigation confusing compared to competing platforms.
Pricing unpredictability frustrates teams at scale. Costs climb as you add WAF capabilities and handle more traffic. The gateway supports HTTP/HTTPS only, which limits use cases requiring other protocols. Scaling under heavy load can lag behind other Azure load balancing options.
Microsoft Shops Get the Most Value
We think Application Gateway fits teams already committed to Azure who need Layer 7 intelligence and WAF in one package. If your applications require non-HTTP protocols, look elsewhere. The usage-based pricing with no upfront commitment lowers initial risk.
Strengths
- Integrated WAF protects against SQL injection and XSS without separate tooling
- URL and cookie-based routing enables precise traffic control for microservices
- Native Azure Monitor integration centralizes health visibility and alerting
- Usage-based pricing eliminates upfront costs and termination fees
Cautions
- Customers report configuration complexity demands significant learning investment for new users
- Users find that costs escalate unpredictably as WAF usage and traffic volumes increase
Barracuda Load Balancer ADC
Barracuda Load Balancer ADC targets organizations wanting straightforward load balancing without enterprise-tier complexity or pricing. It ships in hardware, virtual, and cloud form factors with Layer 4 and Layer 7 capabilities. The platform bundles SSL offloading, application acceleration, and web security into a single package.
Simplicity as the Core Value
We found the web-based interface refreshingly straightforward. Configuration feels intuitive compared to competitors that require deep networking expertise. Built-in alerts notify you when services go down, catching issues before users complain. The documentation supports quick deployment without extensive hand-holding.
SSL offloading shifts encryption work from your servers, freeing resources for application logic. Acceleration features like caching, compression, and TCP pooling improve delivery speed. The Global Server Load Balancing module handles multi-site redundancy for disaster recovery scenarios. We saw strong value for teams managing Microsoft application environments specifically.
Trade-Offs for the Price Point
Customers praise the lower cost compared to alternatives. The platform runs stable with no memory leakage reported over extended deployments. The user-friendly approach makes onboarding faster for smaller teams.
The upgrade process frustrates users running multiple versions behind. You must apply patches sequentially rather than jumping to the latest release. Support quality varies depending on who answers. Some users report quick resolution while others experience communication challenges. The feature set intentionally skips some advanced capabilities found in premium products.
Right-Sized for Mid-Market Teams
We think Barracuda fits organizations prioritizing ease of use over bleeding-edge features. If your team lacks dedicated load balancer specialists, the learning curve advantage matters. Larger enterprises needing deep packet inspection or advanced integrations should evaluate alternatives.
Strengths
- Web interface enables faster configuration than CLI-dependent competitors
- Lower price point than enterprise alternatives without sacrificing core functionality
- Stable operation with no memory leakage reported in long-term deployments
- Built-in service alerts catch availability issues proactively
Cautions
- Some users mention that sequential patch upgrades required when multiple versions behind current release
- Customers report support quality inconsistent depending on engineer assigned to your case
F5 BIG-IP Local Traffic Manager
F5 BIG-IP LTM is the enterprise benchmark for application delivery controllers. It manages traffic across cloud, virtual, and physical infrastructure with static and dynamic load balancing. Large organizations with complex application environments represent the primary audience.
Enterprise-Grade Traffic Management
We found the GUI surprisingly accessible for a product this capable. Creating nodes and pools takes hours to learn, not days. The platform handles VIP creation, SSL termination, persistence, and rate shaping through a consistent interface. iRules provide scripting flexibility when standard configurations fall short.
SSL performance stands out as industry-leading with full visibility into inbound and outbound traffic. ScaleN technology supports elastic, multi-tenant deployments across data centers and hybrid environments. We saw the advanced routing capabilities as particularly valuable for organizations with complex network topologies requiring deep interoperability.
Built for the Long Haul
Hardware stability gets consistent praise. Users report running F5 appliances for years without failures. The security features protecting backend applications earn strong marks from network teams managing sensitive workloads.
The price tag reflects the enterprise positioning. Customers note F5 costs more than alternatives. Frequent software and patch releases create operational burden for teams managing strict uptime SLAs. Writing proxy rule policies requires expertise, and some features remain hidden until you activate specific licenses.
When F5 Makes Sense
We think BIG-IP LTM fits organizations where application delivery is mission-critical and budget supports premium tooling. Smaller shops or those with simpler requirements may find the capability exceeds their needs. The stability and feature depth justify the investment for the right environment.
Strengths
- Hardware stability delivers years of operation without failures in production environments
- GUI makes node and pool creation accessible despite enterprise-level capabilities
- iRules scripting enables custom traffic handling beyond standard configurations
- SSL performance and visibility lead the ADC market
Cautions
- Customers note premium pricing positions this above budget-conscious alternatives
- Users report that frequent patch releases burden operations teams managing strict uptime requirements
HAProxy One
HAProxy One consolidates load balancing, CDN, bot management, DDoS protection, and WAF into a unified platform. It targets teams running high-traffic applications who want to reduce point solution sprawl. The platform spans open-source roots through enterprise-grade hardware appliances.
Performance Under Pressure
We found HAProxy handles massive traffic volumes with minimal latency. The platform processes high-volume data transfer efficiently during both sustained load and sudden spikes. L4 and L7 load balancing covers most deployment scenarios, with advanced algorithms providing granular traffic distribution control.
Security capabilities run deep: WAF protection against Layer 7 attacks, rate limiting, and SSL termination. The Real-time Dashboard delivers cluster-wide observability. For Kubernetes environments, the Enterprise Ingress Controller monitors infrastructure changes and routes traffic to healthy pods automatically.
What Customers Are Saying
Customers consistently praise stability and speed. Long-term users report rock-solid reliability even under heavy load. The active community provides responsive support, and enterprise customers highlight quick, helpful assistance from the vendor.
Configuration complexity surfaces as the main barrier.
Open-Source Roots, Enterprise Reach
We think HAProxy fits teams with strong infrastructure expertise who prioritize performance over simplicity. If your team can invest in learning the configuration model, the payoff is exceptional throughput and flexibility. Organizations wanting turnkey deployment should evaluate the Enterprise edition or alternatives.
Strengths
- Handles extremely high traffic volumes with minimal latency under sustained load
- Flexible configuration supports advanced load-balancing algorithms and custom routing
- Active community and responsive enterprise support accelerate problem resolution
- Consolidates load balancing, WAF, and DDoS protection in one platform
Cautions
- Based on customer feedback, Configuration syntax requires significant learning investment for new users
- Users report that no built-in GUI in open-source version forces manual config file management
Kemp LoadMaster
Kemp LoadMaster is an application delivery controller built for organizations needing enterprise capabilities without enterprise pricing. It deploys across hardware, virtual, and cloud environments with consistent feature parity. Small to mid-sized organizations and budget-conscious enterprises represent the sweet spot.
Enterprise Features at Mid-Market Pricing
We found the feature density impressive for the price point. Layer 4 and Layer 7 load balancing, SSL offloading, content switching, and GSLB cover most deployment scenarios. The built-in WAF provides OWASP Top 10 protection without additional licensing. Security certifications including Common Criteria and FIPS 140-2 satisfy compliance requirements in regulated industries.
The fully-featured API enables automation without relying solely on the GUI. Active/hot-standby pairs provide resilience, and advanced health checks catch backend issues before users notice. Compression and caching accelerate delivery without touching application code.
Operational Simplicity
Customers consistently describe setup as straightforward. The interface earns praise for usability across teams without dedicated load balancer expertise. Documentation covers application-specific configurations well, reducing guesswork during deployment.
Support responsiveness stands out.
What Customers Are Saying
We think LoadMaster works for organizations wanting capable load balancing without F5-level investment. If your requirements include compliance certifications and WAF protection, the value proposition strengthens. Larger enterprises with complex custom requirements should verify feature depth matches their specific needs before committing.
Strengths
- Budget-friendly pricing delivers enterprise features without enterprise costs
- Built-in WAF and FIPS 140-2 certification satisfy compliance requirements
- API enables automation alongside the user-friendly management interface
- Support team responds immediately with capable technical assistance
Cautions
- According to some user reviews, feature depth may not match premium ADC products for complex custom scenarios
- Users note less brand recognition than market leaders impacts enterprise purchasing decisions
Loadbalancer Cloud ADC
Loadbalancer Cloud ADC targets organizations running hybrid environments across AWS, Azure, and GCP. It bundles Layer 4/7 load balancing with integrated WAF and GSLB in a cloud-native package. IT managers and channel partners needing straightforward ADC functionality without enterprise complexity represent the core audience.
Simplicity That Actually Delivers
We found the interface refreshingly intuitive. Configuration takes hours rather than days, and the documentation supports self-service deployment. Automated SSL certificate chaining with unlimited certificate support removes a common operational headache. Content routing, caching, and Layer 7 switching handle standard application delivery scenarios.
The integrated WAF meets OWASP top 10 compliance requirements without bolting on separate tooling. GSLB enables multi-site resilience for organizations with distributed infrastructure. Customizable health checks and session persistence maintain availability during backend changes. We saw the failover handling as particularly smooth.
Long-Term Reliability
Customers report exceptional stability. One organization ran the platform for seven years with issues addressed promptly whenever they surfaced. Teams consistently describe the experience as “set it and forget it” once initial configuration completes. Multiple users switched from competing ADCs specifically because previous solutions were cumbersome to maintain.
Support quality stands out as a differentiator. Customers describe responses as prompt, knowledgeable, and effective. The sales process gets marks for being low-pressure while remaining responsive.
What Customers Are Saying
We think Loadbalancer Cloud ADC fits organizations prioritizing operational simplicity and responsive support over bleeding-edge features. If your team manages cloud workloads without dedicated load balancer specialists, the learning curve advantage matters. The cost-to-capability ratio works well for mid-market budgets.
Strengths
- Intuitive interface enables faster deployment than competing enterprise ADC products
- Seven-year track record of stability reported by long-term customers
- Support team consistently described as prompt, knowledgeable, and effective
- Integrated WAF and GSLB eliminate need for separate point solutions
Cautions
- Some users have noted that feature set targets practical use cases over advanced customization requirements
- Organizations note that cloud-focused deployment model may not suit teams with on-premise priorities
NetScaler
NetScaler delivers application delivery and security at scale for organizations with demanding performance requirements. The platform handles up to 6.4 Tbps of Layer 7 throughput in cluster configurations. Enterprises running hybrid and multi-cloud workloads with strict latency requirements represent the primary audience.
Performance Architecture That Scales
We found the one-pass architecture delivers on its low-latency promise. Dynamic path selection optimizes application experience across internet routes. The platform combines load balancing, content switching, SSL/TLS offloading, and Kubernetes ingress in one solution. ZTNA capabilities extend Zero Trust to internal and external applications.
Security features run deep: WAF protection, volumetric bot mitigation, DDoS defense, and native SSO authentication. Real-time analytics and integrations with Splunk and Prometheus support troubleshooting workflows. We saw the API and traffic insights as particularly valuable for teams managing complex application environments.
The Cost and Complexity Trade-Off
Customers praise reliability and speed. The platform earns consistent marks for being strong and quick under load. Both GUI and CLI interfaces work well for day-to-day management once teams learn the system.
Pricing frustrates customers significantly. Multiple users report license costs more than doubling since 2024, with advanced editions and larger deployments hitting budgets hard. The feature depth creates navigation challenges since capabilities spread across the console without strong search functionality. GSLB in cluster configurations shows buggy behavior. Support quality receives mixed reviews.
Enterprise Scale at Enterprise Cost
We think NetScaler fits organizations where throughput and security requirements justify premium investment. If your budget cannot absorb recent price increases, evaluate alternatives carefully. The capability matches the cost for the right workloads.
Strengths
- One-pass architecture delivers consistently low latency under heavy traffic loads
- Scales to 6.4 Tbps Layer 7 throughput for demanding enterprise workloads
- Integrates WAF, bot protection, and ZTNA without separate point solutions
- Splunk and Prometheus integrations support existing observability workflows
Cautions
- License costs more than doubled since 2024 according to customer reports
- Some users have reported that feature distribution across console makes navigation difficult without search
What To Look For: ADC Evaluation Checklist
When evaluating application delivery controllers, we’ve identified eight critical criteria for selecting the right platform for your traffic patterns.
- Throughput Performance: Can it handle your peak traffic without performance degradation? What’s the Layer 7 throughput in your target configurations? How does performance scale when adding backend servers?
- SSL/TLS Capabilities: Does it offload encryption overhead from backend servers? Does it support modern TLS versions and ciphers? Can you terminate multiple certificates on one VIP?
- Policy Configuration: How intuitive is the policy creation interface? Can you configure complex routing rules without scripting? Is the learning curve manageable for your team?
- Security Features: Does it include DDoS protection or require separate solutions? Is WAF built in or add-on? Can you customize security policies per application?
- Cloud and Hybrid Support: Does it handle hybrid traffic across on-premises and cloud smoothly? What cloud platforms does it integrate with natively? Are there licensing implications for multi-cloud deployments?
- Health Checking and Failover: Can you define sophisticated health checks beyond simple ping? Does it handle graceful connection draining? How quickly does it detect and failover from unhealthy backends?
- Monitoring and Analytics: What visibility does it provide into traffic patterns? Can you export metrics to your existing monitoring tools? Does it support detailed access logging for compliance?
- Total Cost of Ownership: What’s the initial hardware or licensing cost? Are there ongoing support or licensing fees? Will scaling require forklift upgrades or gradual capacity additions?
Weight these criteria based on your deployment. Organizations with sustained high-traffic workloads should prioritize throughput and SSL performance. Teams managing hybrid environments should evaluate cloud integration depth. Budget-conscious teams should model total cost of ownership including maintenance and support.
How We Compared The Best Application Delivery Controllers (ADC)
Expert Insights is an independent editorial team that researches, tests, and reviews cybersecurity and IT solutions. No vendor can pay to influence our review of their products. Our reviews are based solely on product quality. Before testing, we map the full vendor landscape for each category, identifying all active vendors from market leaders to emerging challengers.
We evaluated 10 application delivery controllers covering traffic handling performance, SSL/TLS capabilities, policy configuration usability, DDoS protection, and deployment flexibility. Each platform was tested in documented vendor specifications and real-world customer feedback simulating production conditions, where we assessed setup workflows, policy configuration complexity, and traffic routing under load.
Beyond hands on testing, we conducted extensive market research across the ADC landscape and reviewed customer feedback and interviews to validate vendor claims against operational reality. We spoke with product teams to understand architecture decisions, performance tuning approaches, and known limitations. Our editorial and commercial teams operate independently. No vendor can pay to influence our review of their products.
This guide is updated quarterly. For full details on our evaluation process, visit our How We Test & Review Products.
The Bottom Line
No single ADC works for every organization. Your choice depends on traffic volume, deployment model, and budget.
If application delivery is mission-critical and budget supports premium tooling, F5 BIG-IP LTM delivers proven stability and industry-leading SSL performance. Plan for frequent patch releases and premium pricing.
If you need enterprise capabilities without enterprise costs, Kemp LoadMaster offers straightforward deployment and responsive support. The feature set handles most standard scenarios.
If high-traffic applications demand exceptional throughput, HAProxy One handles massive volumes with minimal latency.
If you’re AWS-native, Elastic Load Balancing integrates natively and removes operational overhead. Manage costs carefully with usage-based pricing.
If you’re committed to Azure, Application Gateway bundles Layer 7 routing and WAF.
Read the individual reviews above to dig into performance details, integration capabilities, and the trade-offs that matter for your infrastructure.
FAQs
Everything You Need To Know About Application Delivery Controllers (FAQs)
Application Delivery Controllers (ADC) sit within the data center, between network firewalls and application servers. They perform two main functions: application acceleration and load balancing. Application acceleration covers improving application performance and response. Load balancing ensures an even distribution of network traffic across servers to ensure no single servers are overloaded, ensuing smooth and reliable network performance for end users.
Application delivery controllers have been described as the next generation of load balancers and can be used to ensure user traffic is distributed evenly to ensure smooth application performance. They also provide additional features such as server health monitoring.
Application Delivery Controllers analyze user requests and assign them to servers using algorithms to evenly distribute traffic load. This helps to prevent servers becoming overloaded then crashing, whilst ensuring consistent performance for end users. They work in-real time and in the background. If there are any issues, such as a server crashing, the application delivery controller should automatically send requests to healthy servers.
Application Delivery Controllers are important to manage high-volume server requests. Without ADC in place, when individual servers receive a high volume of traffic, they will become slow, unresponsive, and could crash. ADC helps to share high traffic loads across physical or virtual servers, ensuring high levels of performance.
ADC solutions are used to improve application and website availability, reduce downtime, reduce latency, and improve application performance. They can also be used to enforce additional security layers against threats such as DDoS attacks.
By implementing an Application Delivery Controller, organizations can:
- Improve Application Availability: Application delivery controllers improve application availability by efficiently distributing workloads
- Ensure Consistent Performance: Load balancing ensures high performance globally, improving user experiences
- Accelerate Deployment: ADC can accelerate content delivery and improve performance speed for developer teams and end users
- Improve Security: ADC solutions can facilitate integrations with security tools such as network firewalls DNS Security, intrusion prevention and DDoS to protect web applications
- Improved Network Control: ADC solutions give admins greater control over network applications by facilitating access controls and custom policy enforcement
When considering an application delivery controller solution, Expert Insights recommends choosing a service that includes the following features:
- Server Load Balancing: ADC solutions should provide full server load balancing to improve application performance and prevent downtime
- Application Acceleration: This is a broad set of features that can improve efficiency, optimize applications, and improve delivery and deployment speeds
- Scalability: The platform should be highly scalable and provide policies and use cases for a wide range of applications
- Application Protection: The best solutions will provide strong application protection support with firewall technology or DNS security services
- Integrations: We recommend looking for solutions that provide integrations with key security and network tools, such as authentication solutions
Written By
Joel is the Director of Content and a co-founder at Expert Insights; a rapidly growing media company focussed on covering cybersecurity solutions.
He’s an experienced journalist and editor with 8 years’ experience covering the cybersecurity space. He’s reviewed hundreds of cybersecurity solutions, interviewed hundreds of industry experts and produced dozens of industry reports read by thousands of CISOs and security professionals in topics like IAM, MFA, zero trust, email security, DevSecOps and more.
He also hosts the Expert Insights Podcast and co-writes the weekly newsletter, Decrypted. Joel is driven to share his team’s expertise with cybersecurity leaders to help them create more secure business foundations.
Technical Review
Laura Iannini is a Cybersecurity Analyst at Expert Insights. With deep cybersecurity knowledge and strong research skills, she leads Expert Insights’ product testing team, conducting thorough tests of product features and in-depth industry analysis to ensure that Expert Insights’ product reviews are definitive and insightful.
Laura also carries out wider analysis of vendor landscapes and industry trends to inform Expert Insights’ enterprise cybersecurity buyers’ guides, covering topics such as security awareness training, cloud backup and recovery, email security, and network monitoring. Prior to working at Expert Insights, Laura worked as a Senior Information Security Engineer at Constant Edge, where she tested cybersecurity solutions, carried out product demos, and provided high-quality ongoing technical support.
Laura holds a Bachelor’s degree in Cybersecurity from the University of West Florida.