Kemp LoadMaster Load Balancer ADC - VLM-5G logo

    Kemp LoadMaster Load Balancer ADC - VLM-5G

    Fully featured and supported 5 Gbps Load Balancer with WAF, GSLB, Authentication, SSO, IPS.

    Ratings and reviews

    4.7
    224 ratings
    2 star
    1 star
    81%
    18%
    1%
    0%
    0%
    0 AWS reviews
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    224 external reviews
    External reviews are from G2 .

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    Reviews (224)
    Computer Networking

    Kemp Loadmaster Delivers Rock-Solid Reliability

    Reviewed on Nov 06, 2026
    Review provided by G2
    What do you like best about the product?
    The Kemp Loadmaster appliances deliver rock solid reliability
    What do you dislike about the product?
    We once restored an appliance from a backup and hadn't understood the license is based on MAC address
    What problems is the product solving and how is that benefiting you?
    Distributing traffic between ADFS servers, application servers and also VPN servers
    Jeff F.

    Easy, Affordable Load Balancing—with ACME Room to Improve

    Reviewed on Nov 05, 2026
    Review provided by G2
    What do you like best about the product?
    I like that Progress Kemp LoadMaster is easy to use, has a simple interface, and is relatively affordable. I value its load balancing and SSL offload. The initial setup and move were extremely easy, and I had no difficulties.
    What do you dislike about the product?
    I find the ACME certificate management pretty bad. It needs API-based verification because it currently requires a public-facing interface, which makes it difficult to use for internal-only applications.
    What problems is the product solving and how is that benefiting you?
    I use Progress Kemp LoadMaster for passive failover.
    Anonymous

    Intuitive Load Balancing with Exceptional Support

    Reviewed on Nov 05, 2026
    Review provided by G2
    What do you like best about the product?
    I like that Progress Kemp LoadMaster is super intuitive and just works. Setting up a load-balanced VIP takes literally two minutes, and I hardly ever need application-vendor documentation or support. When I do need support, they're extremely helpful and immediately start a remote session. It's probably the best support I've ever seen from an enterprise technology. I recently set up a new balancer, and it was really simple too. It distributes traffic across servers and keeps users able to access the resource if a server goes down, which solves that problem perfectly.
    What do you dislike about the product?
    Nothing
    What problems is the product solving and how is that benefiting you?
    I use Progress Kemp LoadMaster to distribute traffic across multiple servers, so users can still access the resource if one server goes down.
    Internet

    Cost-Effective Alternative to F5 That Gets the Job Done

    Reviewed on Nov 05, 2026
    Review provided by G2
    What do you like best about the product?
    According to my coworkers who manage most of it (I only manage the WAF), it is cheaper than F5 and does most of the same thing.
    What do you dislike about the product?
    The GUI has to be my least favorite point. Also, lack of RBAC segmentation, when it comes to virtual services, you get nothing or everything for permissions.
    What problems is the product solving and how is that benefiting you?
    Load balances and has a waf....
    Gary D.

    Fast, Reliable Load Balancing with Automatic Failover

    Reviewed on Nov 05, 2026
    Review provided by G2
    What do you like best about the product?
    I use Progress Kemp LoadMaster to spread user connections across our ERP servers. It’s super fast; our performance testing didn’t notice any impact between connecting directly to a server and going through the LoadMaster. I like that it detects faults and automatically directs users to a working server, which saves us a few out-of-hours calls and keeps operations running. It also lets us remove faulty servers or servers requiring maintenance from production, while spreading users evenly across our server estate for the best application performance. Our initial on-premise HA setup was fairly simple to configure, and the ERP-specific setup guide made it easier. We chose it because it met all our requirements.
    What do you dislike about the product?
    I don’t have any features that didn’t work. We have two Progress Kemp LoadMaster appliances with separate management interfaces, and a single interface would be useful. When we moved to AWS, configuring the more advanced features correctly took a little more time.
    What problems is the product solving and how is that benefiting you?
    I use Progress Kemp LoadMaster to spread our ERP user connections evenly and remove faulty or maintenance servers from production. It detects faults and sends users to working servers automatically, keeping the operation running, saving us a few out-of-hours calls, and maintaining application performance without noticeable connection impact.
    Manufacturing

    Low-Maintenance Infrastructure with an Easy UI and Great Support

    Reviewed on Nov 04, 2026
    Review provided by G2
    What do you like best about the product?
    Out of all of the infrastructure I deal with, this is the one that requires the least amount of management once it is configured. The UI is simple and easy to use once you get the hang of it. The support and online documentation is also very good.
    What do you dislike about the product?
    The UI takes some getting used to. However, it is much improved from previous versions of the product.
    What problems is the product solving and how is that benefiting you?
    Loadmaster allows us to balance traffic to our servers to allow for efficient performance.
    Logistics and Supply Chain

    Easy Setup and Strong Performance for Our Environment

    Reviewed on Nov 03, 2026
    Review provided by G2
    What do you like best about the product?
    It's easy to setup and configure, also the performance is good for our environment.
    What do you dislike about the product?
    The price is a bit high, and it doesn’t align well with our preferred ROI model.
    What problems is the product solving and how is that benefiting you?
    We always need high availability, and we also need to balance the workload across our clusters.
    Aiman J.

    Scalable, Secure Load Balancing

    Reviewed on Oct 30, 2026
    Review provided by G2
    What do you like best about the product?
    I like the scalability and the many different use cases for Progress Kemp LoadMaster. I can deploy multiple load balancers to help keep services available, and add load balancing for new application services with just a few clicks. Creating new services or load-balancing algorithms doesn’t take much time. I also like the different load-balancing features and being able to customize the web application firewall to my organization’s needs. It gives me peace of mind that my critical web application services stay available without end-user disruptions and are protected by the firewall features. The initial setup was very easy: deployment took about 30 minutes, configuration took one to two hours, and we were up and running in less than a day.
    What do you dislike about the product?
    I find the Progress Kemp LoadMaster admin UI a little difficult to use. When I open the web UI, there are so many buttons and things to do that it can feel overloaded. I’d like the options to be organized better so it’s easier to understand what needs to be done.
    What problems is the product solving and how is that benefiting you?
    Progress Kemp LoadMaster keeps my critical web application services available and load balanced without end-user disruptions. Its web application firewall gives me peace of mind that they’re protected from hackers and attackers.
    Chanborey H.

    Fast Failover, Easy Setup, Room to Strengthen Security

    Reviewed on Oct 30, 2026
    Review provided by G2
    What do you like best about the product?
    I use Progress Kemp LoadMaster for load balancing, SSL offload, and its built-in WAF to help protect against the OWASP Top 10. I like that it is easy to set up and switches over very quickly when a server goes down. Developers no longer have to worry about backend server failures taking their websites down, and it helps them work with SSL certificates when they have many websites.
    What do you dislike about the product?
    I would like to see more DDoS, API, and bot protection, along with a stronger WAF. Other vendors are very strong in these areas, and Progress Kemp LoadMaster could be better if it develops these features further.
    What problems is the product solving and how is that benefiting you?
    I use Progress Kemp LoadMaster’s built-in WAF to protect against OWASP Top 10 attacks, handle a single server going down, and help developers apply SSL certificates across many websites.
    Manufacturing

    Fast, Stable, and Easy to Configure with Plenty of Useful Features

    Reviewed on Oct 29, 2026
    Review provided by G2
    What do you like best about the product?
    Fast and stable product. It’s easy to configure and comes with a lot of useful features.
    What do you dislike about the product?
    CLI access is not available for customers.
    What problems is the product solving and how is that benefiting you?
    It runs as a load balancer and a web application firewall.