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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 7.3
    FortiGuard DNS Filtering Service vs CrowdSec
  2. 2
    Wazuh Free plan apiLinuxMacself-hostedWeb $571/mo7.1
    FortiGuard DNS Filtering Service vs Wazuh
  3. 3
    OSSEC Free plan LinuxMacself-hostedWin $5/mo7.0
    FortiGuard DNS Filtering Service vs OSSEC
  4. 4
    Suricata Free plan LinuxMacWin Free7.0
    FortiGuard DNS Filtering Service vs Suricata
  5. 5
    pfSense Free plan Linuxself-hostedWeb 6.9
    FortiGuard DNS Filtering Service vs pfSense
  6. 6
    SELKS Free plan Linuxself-hostedWebWin Free6.9
    FortiGuard DNS Filtering Service vs SELKS
  7. 7
    Zscaler Private Access AndroidiOSLinuxMacWeb 6.9
    FortiGuard DNS Filtering Service vs Zscaler Private Access
  8. 8
    Arista NG Firewall Free plan Web $22.50/mo6.8
    FortiGuard DNS Filtering Service vs Arista NG Firewall
  9. 9
    IPFire Free plan Linuxself-hostedWeb Free6.8
    FortiGuard DNS Filtering Service vs IPFire
  10. 10
    OPNsense Free plan apiself-hostedWeb 6.8
    FortiGuard DNS Filtering Service vs OPNsense
  11. 11
    Snort Free plan Linuxself-hosted $2.50/mo6.7
    FortiGuard DNS Filtering Service vs Snort
  12. 12
    Trellix Data Loss Prevention apiMacself-hostedWebWin 6.7
    FortiGuard DNS Filtering Service vs Trellix Data Loss Prevention
  13. 13
    scanlogd Free plan Linuxself-hosted Free6.6
    FortiGuard DNS Filtering Service vs scanlogd
  14. 14
    WatchGuard FireCloud Free trial AndroidapiiOSMacself-hosted $8.15/mo6.5
    FortiGuard DNS Filtering Service vs WatchGuard FireCloud
  15. 15
    Check Point DDoS Protector Linuxself-hostedWeb 6.4
    FortiGuard DNS Filtering Service vs Check Point DDoS Protector
  16. 16
    Atomic OSSEC Free trial LinuxMacself-hostedWebWin 6.3
    FortiGuard DNS Filtering Service vs Atomic OSSEC
  17. 17
    Securepoint RC1000R G6 AndroidiOSWebWin 6.3
    FortiGuard DNS Filtering Service vs Securepoint RC1000R G6
  18. 18
    Huawei HiSecEngine USG6800G Web 6.2
    FortiGuard DNS Filtering Service vs Huawei HiSecEngine USG6800G
  19. 19
    Stormshield Management Center Free trial apiLinuxself-hostedWeb 6.2
    FortiGuard DNS Filtering Service vs Stormshield Management Center
  20. 20
    Forcepoint ZTNA Macself-hostedWebWin 6.1
    FortiGuard DNS Filtering Service vs Forcepoint ZTNA

FortiGuard DNS Filtering Service alternatives compared

#AppScoreFree planFromRuns on
1CrowdSec7.3Free planAPI, Browser, Linux, Mac, self-hosted, Web, Windows
2Wazuh7.1Free plan$571/moAPI, Linux, Mac, self-hosted, Web, Windows
3OSSEC7.0Free plan$5/moLinux, Mac, self-hosted, Windows
4Suricata7.0Free planFreeLinux, Mac, Windows
5pfSense6.9Free planLinux, self-hosted, Web
6SELKS6.9Free planFreeLinux, self-hosted, Web, Windows
7Zscaler Private Access6.9Android, iOS, Linux, Mac, Web, Windows
8Arista NG Firewall6.8Free plan$22.50/moWeb
9IPFire6.8Free planFreeLinux, self-hosted, Web
10OPNsense6.8Free planAPI, self-hosted, Web
11Snort6.7Free plan$2.50/moLinux, self-hosted
12Trellix Data Loss Prevention6.7API, Mac, self-hosted, Web, Windows
13scanlogd6.6Free planFreeLinux, self-hosted
14WatchGuard FireCloud6.5No$8.15/moAndroid, API, iOS, Mac, self-hosted, Web, Windows
15Check Point DDoS Protector6.4Linux, self-hosted, Web
16Atomic OSSEC6.3NoLinux, Mac, self-hosted, Web, Windows
17Securepoint RC1000R G66.3Android, iOS, Web, Windows
18Huawei HiSecEngine USG6800G6.2Web
19Stormshield Management Center6.2API, Linux, self-hosted, Web
20Forcepoint ZTNA6.1Mac, self-hosted, Web, Windows
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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 7.3 out of 10. The others here: Wazuh, OSSEC, Suricata 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 on what each maker publishes: documentation depth, a free tier and the platforms it runs on.