HAProxy
Depends
Confidence: Medium
A buy for engineering teams running serious traffic who are comfortable with config files and patching.
Comparison
HAProxy and RELIANOID both land on Depends.
A buy for engineering teams running serious traffic who are comfortable with config files and patching.
Buy if you run serious infrastructure and want an open-source ADC with enterprise support without F5/Citrix pricing.
| Compare | HAProxy | RELIANOID |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | High-traffic web infrastructure | Infra teams replacing F5 BIG-IP on a budget |
| Who it's not for | Non-technical teams wanting a dashboard | Small teams with one app . use your cloud provider's load balancer |
| Privacy | Mature, actively patched open-source project; several CVEs disclosed 2023-2024, including one critical (CVSS 9.1, patched).⁸ | Vendor actively publishes advisories and an end-of-life plan; two kernel-related flaws surfaced in 2026 sources. |
| Support quality | No support evidence in reviewed sources | Paid support tiers exist; quality unverified by reviews |
| Public sentiment | Comparisons and guides consistently describe HAProxy as fast, stable and highly configurable, but aimed at hands-on operators rather than beginners.⁴ | Reviews are scarce but uniformly glowing . 5.0 on G2 and SourceForge, with an AWS Marketplace reviewer citing strong performance.11 |
| Biggest gotcha | Multiple HTTP request-smuggling CVEs disclosed 2023-2024; patch promptly⁹ | Enterprise pricing is not public; you must request an evaluation through sales. |