Cloudflare
cloudflare.com · checked 13 Nov 2026
How it plugs in
—Public API
NoOpen source
YesFree tier
Signal on Email Spam Filtering Software5.8#1 of 11
Pricing
- Free PlanFree
- Pay-as-you-go$7/mo
- Contract PlanOn request
- Free (Cloudflare One)$0 forever · 50 users; community forums + Discord support; up to 24 hours standard log retentionFree
- Free (Network & CDN)$0/month · For personal or hobby projects that aren't business-criticalFree
- Pay-as-you-go (Cloudflare One)$7/user/month · No user limit; chat and ticket support; up to 30 days standard log retention$7/mo
- Pro$20/mo billed annually, or $25/mo billed monthly · For professional websites that aren't business-critical$20/mo
- Business$200/mo billed annually, or $250/mo billed monthly · For small businesses operating online$200/mo
As cloudflare.com lists them, checked 25 Oct 2026.
Near it
All alternatives →- H3Hornetsecurity 365 Total Protection#2 on this board
- SG
SpamTitan Gateway#3 on this board - MDMicrosoft Defender for Office 365#4 on this board
- SESophos Email#5 on this board
- CPCheck Point Harmony Email & Collaboration#6 on this board
- ASAbnormal Security#7 on this board
- DE
Darktrace / EMAIL#8 on this board - MEMimecast Email Security#9 on this board
- TETrellix Email Security#10 on this board
- TVTrend Vision One#11 on this board