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HAProxy Technologies vs Caddy Web Server

HAProxy Technologies lands on Depends, and Caddy Web Server lands on Worth it.

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HAProxy Technologies versus Caddy Web Server
CompareHAProxy TechnologiesCaddy Web Server
VerdictDependsWorth it
Best forHigh-traffic web apps and APIsSelf-hosters and homelabs
Who it's not forSimple sites behind one serverSuper high-traffic platforms (scale questioned by users)
PrivacyActively patched; several DoS CVEs in 2025-2026; HAProxy 3.2.5 passed a French national security audit cleanly.⁷HTTPS-secure by default, but multiple CVEs published 2022-2026; one finding disputed; third-party plugins add risk.
Support qualityOnly 11 Gartner reviews; weak support signalCommunity-only; maintainership bottleneck reported
Public sentimentCommunity sentiment favors HAProxy's speed and reliability, though formal review volume is small and most debate happens in forums comparing it to rivals.²Reddit users overwhelmingly praise Caddy's simplicity and automatic HTTPS as an nginx/apache replacement for self-hosting.
Biggest gotchaCommunity Edition users patch CVEs themselves; missing an upgrade window means exposure⁶Plugins extend attack surface: Trail of Bits found 10 flaws in one SSO plugin

Pick HAProxy Technologies when

  • High-traffic web apps and APIs
  • Kubernetes ingress at scale
  • Teams wanting LB + WAF in one platform
  • Enterprises with dedicated ops staff

When HAProxy Technologies is not a fit

  • Simple sites behind one server
  • Teams with nobody who reads config files
  • Buyers wanting GUI-first, point-and-click setup
  • Anyone needing transparent published pricing

Pick Caddy Web Server when

  • Self-hosters and homelabs
  • Small-to-medium websites
  • Reverse proxy with auto-HTTPS
  • Solo devs tired of nginx config

When Caddy Web Server is not a fit

  • Super high-traffic platforms (scale questioned by users)
  • Enterprises needing vendor SLAs or support contracts
  • Teams with deep nginx investment (switching cost, no payoff)
  • Buyers wanting a managed or hosted service

Sources

  1. HAProxy Leads G2 Summer 2026 Load Balancing Rankingslinkedin.com
    news
  2. Browse HAProxy Technologies Reviews . Gartnergartner.com
    review
  3. HAProxy G2 Reviews (2026) Load Balancing Softwarehaproxy.com
    review
  4. HAProxy Enterprise WAF Review (2026) . WAFPlanetwafplanet.com
    review
  5. ELI5 Nginx, HAProxy, Caddy, Traefik . Redditreddit.com
    review
  6. CVE-2026-26080: HAProxy varint DoS Vulnerability . SentinelOnesentinelone.com
    security
  7. CVE-2025-11230: HAProxy mjson DoS . official advisoryhaproxy.com
    security
  8. HAProxy Technologies . official sitehaproxy.com
    official
  9. How PayPal Hyperscaled Kubernetes Routing with HAProxyyoutube.com
    news
  10. HAProxy Ranked #3 Web Hosting Software in G2 2026 Awardsdesertsun.com
    news
  11. Caddy . official sitecaddyserver.com
    official
  12. caddyserver/caddy on GitHubgithub.com
    official
  13. Sponsor the Caddy Projectcaddyserver.com
    official
  14. Caddy offers TLS, HTTPS in one dependency-free Go server . Ars Technicaarstechnica.com
    news
  15. Caddy maintainership bottleneck . BigGo Financefinance.biggo.com
    news
  16. Has anyone tried Caddy? . Linux Communitylinuxcommunity.io
    review