# Best WAN Optimization Software - Page 2 *By [Bijou Barry](https://research.g2.com/insights/author/bijou-barry)* WAN Optimization software provides features that allow users to improve the performance of their applications running on the wide area network (WAN). To qualify for inclusion in the category, a product must: - Helps businesses to improve performance of certain businesses applications. - Provide users with a complete view of network traffic. - Accelerate business applications to increase productivity. ## How Many WAN Optimization Software Products Does G2 Track? **Total Products under this Category:** 30 ### Category Stats (May 2026) - **Average Rating**: 4.41/5 - **New Reviews This Quarter**: 1 - **Buyer Segments**: Mid-Market 100% - **Top Trending Product**: Barracuda CloudGen Firewall (+0.01) *Last updated: May 19, 2026* ## How Does G2 Rank WAN Optimization Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 200+ Authentic Reviews - 30+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## Which WAN Optimization Software Is Best for Your Use Case? - **Leader:** [Barracuda CloudGen Firewall](https://www.g2.com/products/barracuda-cloudgen-firewall/reviews) - **Top Trending:** [Barracuda CloudGen Firewall](https://www.g2.com/products/barracuda-cloudgen-firewall/reviews) - **Best Free Software:** [LinkEye](https://www.g2.com/products/linkeye/reviews) ## What Are the Top-Rated WAN Optimization Software Products in 2026? ### 1. [Alkira Network Infrastructure as-a-Service](https://www.g2.com/products/alkira-network-infrastructure-as-a-service/reviews) Alkira is a network infrastructure as a service platform that helps enterprises connect users, sites, data centers, and cloud environments through a unified, cloud-delivered networking solution. Founded by networking industry veterans and headquartered in San Jose, California, Alkira serves mid-to-large enterprises across healthcare, financial services, manufacturing, and technology sectors. The company eliminates the need for physical infrastructure deployment by providing virtual network services that can be designed and deployed within minutes rather than months. The Alkira Platform operates through globally distributed Cloud Exchange Points (CXPs) that function as virtual points of presence, delivering comprehensive networking capabilities across multiple regions. Key features and functionality include: - Point-and-click network design canvas enabling single-click deployment of entire network architectures - Native multi-cloud connectivity supporting AWS, Azure, and Google Cloud environments - Integrated security services marketplace supporting third-party firewalls from Palo Alto Networks, Fortinet, and other vendors - End-to-end network segmentation and microsegmentation capabilities - Real-time visibility, monitoring, and governance across all network connections Alkira addresses critical enterprise networking challenges by providing a consumption-based model that eliminates upfront capital expenditures while reducing total cost of ownership by up to 40%. Organizations achieve 80% faster provisioning times compared to traditional networking approaches, enabling IT teams to respond rapidly to business requirements. The platform simplifies complex networking tasks such as multi-cloud connectivity, business partner integration, security policy enforcement, and zero trust network access implementation, allowing enterprises to focus on core business objectives rather than infrastructure management. Languages Supported: The Alkira Platform interface and documentation are available in English. Value Proposition: Alkira transforms enterprise networking by delivering infrastructure as a service, similar to how cloud providers revolutionized compute and storage. Unlike traditional networking solutions requiring hardware procurement, complex configurations, and lengthy deployment cycles, Alkira provides instant global connectivity through software-defined infrastructure. The platform differentiates itself through its comprehensive approach to networking challenges - customers can address multi-cloud connectivity, security consolidation, global backbone requirements, and partner integration through a single platform. By abstracting network complexity and providing unified management across all environments, Alkira enables enterprises to achieve cloud-like agility for their networks while maintaining enterprise-grade security and compliance requirements. **Average Rating:** 5.0/5.0 **Total Reviews:** 1 **Who Is the Company Behind Alkira Network Infrastructure as-a-Service?** - **Seller:** [Alkira](https://www.g2.com/sellers/alkira) - **Year Founded:** 2018 - **HQ Location:** San Jose, California, United States - **Twitter:** @alkiranet (1,547 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/alkiranet (173 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 100% Enterprise #### What Are Alkira Network Infrastructure as-a-Service's Pros and Cons? **Pros:** - Configuration Ease (1 reviews) - Data Analytics (1 reviews) - Ease of Use (1 reviews) - Easy Setup (1 reviews) - Flexibility (1 reviews) **Cons:** - Lack of Features (1 reviews) - Learning Curve (1 reviews) - Poor Documentation (1 reviews) ### 2. [Haltdos Link Load Balancer](https://www.g2.com/products/haltdos-link-load-balancer/reviews) Haltdos LLB (Link Load Balancer) is designed to manage traffic over multiple Internet Service Providers (ISP) or Wide Area Network (WAN) links. This enables you to subscribe to or provision multiple links, resulting in reduced risk of outages, additional bandwidth for peak events, and potential cost savings if your ISP uses billing tiers based on bandwidth rate or peak/off-peak hours. It roves Internet availability and response times across networks. **Average Rating:** 4.5/5.0 **Total Reviews:** 1 **Who Is the Company Behind Haltdos Link Load Balancer?** - **Seller:** [HaltDos](https://www.g2.com/sellers/haltdos) - **Year Founded:** 2015 - **HQ Location:** Noida, India - **LinkedIn® Page:** https://www.linkedin.com/company/10236952 (38 employees on LinkedIn®) - **Ownership:** Anshul Saxena **Who Uses This Product?** - **Company Size:** 100% Enterprise ### 3. [NetFlow Optimizer](https://www.g2.com/products/netflow-optimizer/reviews) NetFlow Logic makes network telemetry actionable inside the security and IT operations tools you already use — Splunk, Microsoft Sentinel, CrowdStrike, Datadog, and more. Its core product, NetFlow Optimizer™ (NFO), is a software-only processing engine that sits between your network infrastructure and your downstream platforms. NFO ingests raw flow data (NetFlow, IPFIX, sFlow, J-Flow) and cloud flow logs (AWS, Azure, GCP, OCI), then deduplicates, aggregates, and enriches every record before forwarding it — reducing volume by up to 90% while adding user identity, application context, threat intelligence, GeoIP, and hostname resolution to each flow. The result: your SIEM receives network telemetry it can actually use. Named users instead of IP addresses. Application names instead of port numbers. Threat-flagged flows instead of raw connections. And at a volume that doesn't break your ingest budget. What NFO enables: \* Full network visibility inside Splunk and Microsoft Sentinel, with CIM- and ASIM-compliant output that works with existing detection rules and dashboards \* Lateral movement, exfiltration, and C2 beaconing detection from network flow data \* Compliance evidence for CMMC, NIST, and FISMA from user-attributed network records \* Zero-touch device discovery and SNMP monitoring across your entire infrastructure estate Organizations with existing NetFlow infrastructure are typically ingesting enriched data into their SIEM in under an hour. **Who Is the Company Behind NetFlow Optimizer?** - **Seller:** [NetFlow Logic](https://www.g2.com/sellers/netflow-logic) - **Year Founded:** 2011 - **HQ Location:** Atherton, US - **LinkedIn® Page:** https://www.linkedin.com/company/netflow-logic/ (4 employees on LinkedIn®) ### 4. [Riverbed SteelHead Mobile](https://www.g2.com/products/riverbed-steelhead-mobile/reviews) Riverbed SteelHead Mobile is a software solution designed to enhance the performance of applications and data access for remote and mobile workers. By optimizing network traffic, it ensures that users experience faster and more reliable connectivity, regardless of their location. This is particularly beneficial for employees working from home, on the road, or at client sites, as it allows them to access critical business applications with improved speed and efficiency. Key Features and Functionality: - Application Acceleration: SteelHead Mobile accelerates the delivery of business-critical applications, including Microsoft SharePoint, Outlook, and various ERP and CRM systems, by reducing data transfer times and improving responsiveness. - Data Reduction: Utilizing advanced data streamlining techniques, it minimizes the amount of data transmitted over the network, leading to up to 99% data reduction and significantly decreasing bandwidth usage. - Scalability: The solution is capable of scaling to support thousands of concurrent mobile users, making it suitable for organizations of various sizes. - Security: SteelHead Mobile enhances the performance of encrypted applications by optimizing SSL/TLS connections without compromising security protocols. - Visibility and Control: Administrators can manage configuration policies, monitor performance metrics, and generate reports to ensure optimal operation and user experience. Primary Value and User Benefits: SteelHead Mobile addresses the challenges faced by remote and mobile workers who require consistent and efficient access to enterprise applications. By optimizing network performance, it reduces latency and accelerates data transfers, leading to increased productivity and a seamless user experience. Organizations benefit from improved application performance, reduced bandwidth costs, and enhanced security for remote connections, ensuring that employees can work effectively from any location. **Who Is the Company Behind Riverbed SteelHead Mobile?** - **Seller:** [Riverbed Technology](https://www.g2.com/sellers/riverbed-technology) - **Year Founded:** 2002 - **HQ Location:** San Francisco, CA - **Twitter:** @RIVERBED (23,876 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/7796/ (1,590 employees on LinkedIn®) ### 5. [Riverbed SteelHead RS](https://www.g2.com/products/riverbed-steelhead-rs/reviews) Riverbed SteelHead RS is a software solution designed to enhance network resiliency and performance in edge computing environments. It ensures efficient and secure data processing at the network's edge, even during outages or degradations, by maintaining copies of critical data locally and synchronizing them with the data center in near real-time. This approach not only boosts productivity for edge users but also supports business continuity by reducing data loss risks. With integrated Riverbed acceleration technology, SteelHead RS can improve data transfer performance by up to 100 times. Key Features and Functionality: - Peak Performance: Optimizes edge computing performance and data transfer, minimizing network impact. - Security and Integrity: Ensures secure data delivery to the edge, encrypts data both at rest and in transit, and achieves near real-time data synchronization. - Visibility and AI Operations Support: Provides extended performance monitoring and reporting capabilities. - Disaster Recovery Readiness: Reduces data loss with near real-time synchronization between the data center and the edge. Primary Value and User Solutions: SteelHead RS addresses the challenges of edge computing by providing a resilient networking solution that ensures continuous data availability and integrity. It enhances productivity for edge users by maintaining local copies of critical data and synchronizing them with the data center, even during network disruptions. The solution's acceleration technology significantly improves data transfer speeds, supporting efficient operations and business continuity in edge environments. **Who Is the Company Behind Riverbed SteelHead RS?** - **Seller:** [Riverbed Technology](https://www.g2.com/sellers/riverbed-technology) - **Year Founded:** 2002 - **HQ Location:** San Francisco, CA - **Twitter:** @RIVERBED (23,876 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/7796/ (1,590 employees on LinkedIn®) ## What Is WAN Optimization Software? [IT Infrastructure Software](https://www.g2.com/categories/it-infrastructure) --- ## How Do You Choose the Right WAN Optimization Software? ### What You Should Know About WAN Optimization Software ### What is WAN Optimization Software? Wide area network (WAN) optimization software improves network congestion and latency by implementing bandwidth optimization techniques such as compression, caching, data deduplication, and network prioritization. Businesses and customers do not want to wait for their web page to load. WAN optimization, also known as WAN acceleration, can help by reducing the time it takes for information to travel from a company’s data center to its remote locations. Instead of buying new bandwidth, businesses can use WAN optimization software to provide fast internet applications despite increased traffic demand. This helps to ensure that customers do not get frustrated with delays.  Companies may determine which WAN optimization methods they want to use depending on connectivity, hardware locations, legacy application environment, and integration with other network types such as a local area network (LAN). Other times businesses may choose software-defined WAN (SD-WAN) which is a virtual WAN architecture. Regardless of the methods, it should address common issues such as latency, duplication, packet loss, and congestion in certain areas of the network. The end goal is to get faster data retrieval and web application performance for end users by improving network performance in real time. ### What are the Common Features of WAN Optimization Software? The following are some core features within WAN optimization software that can help users to manage their network latency and congestion: **Bandwidth optimization:** WAN optimization software tackles bandwidth latency and congestion by caching (save frequently used contents on local server), data deduplication (send hashes data instead of actual data), protocol optimization (reduce chatty protocol), path optimization (transfer data through a less congested connection such as Multiprotocol Label Switching (MPLS) or SD-WAN), location optimization (based on branch offices), and so on. Other more advanced optimization techniques may require buying hardware or advanced features from vendors.  **Flexible deployment:** WAN optimization solutions need to be easily deployed on major network virtual ware and hardware such as routers, servers, hypervisors, firewalls, and computers with high throughput (gigabytes level). Some solutions are also cloud ready or cloud natives. That means that they can be deployed in infrastructure as a service or platform as a service environment quickly. It should also be deployed in an SD-WAN environment.  **IT control and visibility:** A complete WAN solution should also monitor infrastructure resources since it needs to know resource availability to determine how to optimize the network. With full visibility, IT teams can set up service policies with the WAN optimizer to automatically manage their network based on availability. ### What are the Benefits of WAN Optimization Software? **Application acceleration:** WAN optimization software uses traffic shaping to indirectly accelerate application performance and reduce bandwidth consumption. By revamping existing network connections, the software can increase performance several times for on-premises and cloud applications in hybrid environments. Based on the applications, the WAN optimizer can distinguish which network traffic is critical to the applications and select an optimal routing path for the data transfer. In the end, clients will experience a rapid and secure user experience with WAN optimization appliances. **Cost saving:** This type of software could reduce bandwidth utilization significantly and defers costly network bandwidth upgrades. The percentage of savings varies based on the infrastructure. **Ease of management:** IT staff can designate custom policies and alerts to better manage their network performance. IT projects that heavily rely on WAN and data centers can be managed in a centralized platform. Problems will be resolved faster with high visibility into the application network and centralized dashboard. ### Challenges with WAN Optimization Software Software solutions can come with their own set of challenges.  **Network integration:** Although many WAN optimization vendors will mention that their software will be compatible with major brand software and hardware, there is no guarantee that it will run smoothly in the client’s environments. Modern network structure can be very complicated especially in hybrid environments with legacy systems, which is quite common nowadays. Even if it does run smoothly, there is also the potential problem with scalability for critical applications. Can the software perform load balancing on high throughput requirements to achieve WAN acceleration? Companies need to test the software in their own on-premise and virtualization environment before commitment. **Data regulation:** Companies need to ensure that the WAN performance policies won’t transfer sensitive data into unsecured or unauthorized channels. Selecting a less congested path or protocols may be more efficient and save money, but that doesn’t mean that it is safe. Some WAN optimization software can automatically avoid this situation, but IT teams still need to establish network security rules to make sure that won’t happen or adopt SD-WAN for further customization. **IT team alignment:** Companies should not automatically expect that their current IT team already has the necessary talent to manage WAN. The modern-day network is complicated and many IT personnel are specialized in specific layers of IT stacks. WAN optimization needs both lower layer (network and physical) and higher layer (application and transport) talents. Either different talents from different layers work together or companies need to hire new IT professionals who specialize in multiple layers (TCP acceleration). Otherwise, there will be a conflict of management as to who manages which part of the network from separate teams. This will slow down the time to solve important network issues. ### How to Buy WAN Optimization Software #### Requirements Gathering (RFI/RFP) for WAN Optimization Software The company’s needs when searching for WAN optimization solutions often relate to specific network performance issues. For example, the user may be most interested in improving performance for latency. Buyers should make a ranked list of the WAN optimization features that most directly address the problems they’re trying to solve, then reference G2 reviews to find the right fit. Prioritizing the desired feature set can help narrow down the potential pool of WAN optimizers, allowing teams to then apply further considerations for budget, ease of integration with other systems, security requirements, and more. This holistic approach empowers buyers to move forward with a focused checklist, which can be used in conjunction with G2 scoring to select the best WAN optimization product for the business. #### Compare WAN Optimization Software Products **Create a long list** Buyers should start with a large pool of WAN optimization software vendors. Keeping the desired must-have features in mind, buyers must perform consistent inquiries during demos so they can effectively compare the pros and cons of each software. **Create a short list** It helps to cross-reference the results of initial vendor evaluations with G2 reviews from other buyers, the combination of which will help narrow it down to three to five products. From there, buyers can compare pricing and features to determine the best fit. **Conduct demos** Companies should make sure to demo all of the products that end up on their short list. The basic step of the demo is to start with a basic optimization setup. It’s important to know if the product identifies network latency, specific congested areas, and performance metrics like packet and bandwidth data. It’s also helpful to test the policy configuration and reporting function. It is important that the selected product fully reflects the entire enterprise network ecosystem and topology. #### Selection of WAN Optimization Software **Choose a selection team** Regardless of a company’s size, it’s important to involve the most relevant personnel when beginning the WAN optimization software selection process. Larger companies may include individual team members to fill roles such as system owners, IT professionals, and developers who will be working with the software closely. Smaller companies with fewer employees might overlap roles.  **Negotiation** Many companies offer full network-related platforms that go beyond WAN optimization to include application performance monitoring, cloud infrastructure monitoring, and more. While some companies will not budge on the configurations of their packages, buyers looking to trim costs should try to negotiate down to the specific functions that matter to them to get the best price. For example, a vendor’s pricing page where WAN optimization functionality is only included with a robust all-in-one monitoring package, whereas a sales conversation may prove otherwise.  **Final decision** After this stage, it is important to perform a trial run with a small selection of IT professionals or developers. This will help ensure that the software of choice integrates well with the company’s data centers, an IT administrator’s systems setup, or a developer’s day-to-day work. If the tool is well liked and well utilized, the buyer can take that as a sign that their selection is the right one. If not, reevaluation of the options may be necessary.