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Best FortiGuard DNS Filtering Service Alternatives in 2026

Updated

20 apps from intrusion detection and prevention software ranked against FortiGuard DNS Filtering Service on the same published basis.

  1. 1
    CrowdSec Free plan apiextensionLinuxMacself-hosted 6.6
    FortiGuard DNS Filtering Service vs CrowdSec
  2. 2
    Wazuh Free plan apiLinuxMacself-hostedWeb $571/mo6.6
    FortiGuard DNS Filtering Service vs Wazuh
  3. 3
    OSSEC Free plan LinuxMacself-hostedWin $5/mo6.5
    FortiGuard DNS Filtering Service vs OSSEC
  4. 4
    SELKS Free plan Linuxself-hostedWebWin Free6.5
    FortiGuard DNS Filtering Service vs SELKS
  5. 5
    Suricata Free plan LinuxMacWin Free6.5
    FortiGuard DNS Filtering Service vs Suricata
  6. 6
    Arista NG Firewall Free plan Web $22.50/mo6.4
    FortiGuard DNS Filtering Service vs Arista NG Firewall
  7. 7
    IPFire Free plan Linuxself-hostedWeb Free6.4
    FortiGuard DNS Filtering Service vs IPFire
  8. 8
    OPNsense Free plan apiself-hostedWeb 6.4
    FortiGuard DNS Filtering Service vs OPNsense
  9. 9
    pfSense Free plan Linuxself-hostedWeb 6.4
    FortiGuard DNS Filtering Service vs pfSense
  10. 10
    scanlogd Free plan Linuxself-hosted Free6.3
    FortiGuard DNS Filtering Service vs scanlogd
  11. 11
    Snort Free plan Linuxself-hosted $2.50/mo6.3
    FortiGuard DNS Filtering Service vs Snort
  12. 12
    Trellix Data Loss Prevention apiMacself-hostedWebWin 5.6
    FortiGuard DNS Filtering Service vs Trellix Data Loss Prevention
  13. 13
    Check Point DDoS Protector Linuxself-hostedWeb 5.5
    FortiGuard DNS Filtering Service vs Check Point DDoS Protector
  14. 14
    Forcepoint Next Generation Firewall AndroidapiLinuxMacself-hosted 5.5
    FortiGuard DNS Filtering Service vs Forcepoint Next Generation Firewall
  15. 15
    Huawei HiSecEngine USG6800G Web 5.4
    FortiGuard DNS Filtering Service vs Huawei HiSecEngine USG6800G
  16. 16
    Stormshield Management Center Free trial apiLinuxself-hostedWeb 5.4
    FortiGuard DNS Filtering Service vs Stormshield Management Center
  17. 17
    Zscaler Private Access AndroidiOSLinuxMacWeb 5.4
    FortiGuard DNS Filtering Service vs Zscaler Private Access
  18. 19
    Hillstone Security Management apiself-hosted 5.3
    FortiGuard DNS Filtering Service vs Hillstone Security Management
  19. 20
    WatchGuard FireCloud Free trial AndroidapiiOSMacself-hosted $8.15/mo5.3
    FortiGuard DNS Filtering Service vs WatchGuard FireCloud
  20. 21
    Zyxel Intrusion Prevention System 5.3
    FortiGuard DNS Filtering Service vs Zyxel Intrusion Prevention System

FortiGuard DNS Filtering Service alternatives compared

#AppScoreFree planFromRuns on
1CrowdSec6.6Free planAPI, Browser, Linux, Mac, self-hosted, Web, Windows
2Wazuh6.6Free plan$571/moAPI, Linux, Mac, self-hosted, Web, Windows
3OSSEC6.5Free plan$5/moLinux, Mac, self-hosted, Windows
4SELKS6.5Free planFreeLinux, self-hosted, Web, Windows
5Suricata6.5Free planFreeLinux, Mac, Windows
6Arista NG Firewall6.4Free plan$22.50/moWeb
7IPFire6.4Free planFreeLinux, self-hosted, Web
8OPNsense6.4Free planAPI, self-hosted, Web
9pfSense6.4Free planLinux, self-hosted, Web
10scanlogd6.3Free planFreeLinux, self-hosted
11Snort6.3Free plan$2.50/moLinux, self-hosted
12Trellix Data Loss Prevention5.6API, Mac, self-hosted, Web, Windows
13Check Point DDoS Protector5.5Linux, self-hosted, Web
14Forcepoint Next Generation Firewall5.5Android, API, Linux, Mac, self-hosted, Windows
15Huawei HiSecEngine USG6800G5.4Web
16Stormshield Management Center5.4API, Linux, self-hosted, Web
17Zscaler Private Access5.4Android, iOS, Linux, Mac, Web, Windows
19Hillstone Security Management5.3API, self-hosted
20WatchGuard FireCloud5.3No$8.15/moAndroid, API, iOS, Mac, self-hosted, Web, Windows
21Zyxel Intrusion Prevention System5.3
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Questions about FortiGuard DNS Filtering Service alternatives

What is the best alternative to FortiGuard DNS Filtering Service?

CrowdSec, number 1 in intrusion detection and prevention software with a score of 6.6 out of 10. The others here: Wazuh, OSSEC, SELKS and 16 more.

What is the best free alternative to FortiGuard DNS Filtering Service?

CrowdSec is the best-ranked alternative with a free plan. 11 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.