Sites using CloudFilter
Hosted email anti-spam and anti-malware filtering for ISPs and email hosts.
Found via: Product Hunt 5 · StackScope Discovery (Indie) 1 · StackScope Wider Web 3
Figures on this page reflect launches found via StackScope Discovery only. The "Found via" counts above always show every source. Reset
CloudFilter has been detected on a single launch we've crawled, TenderHut — Search every Indian government tender in one place, on July 13, 2026.
It's most commonly paired with Cloudflare, Cloudflare DNS, and Cloudflare Web Analytics.
Share of new launches using CloudFilter
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
How StackScope detects technologies
⋮ Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount.
Email Security leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 |
DNSSmartHost
|
0.04% | 28.57% | |
| #2 |
MailSpamProtection
|
0.04% | 25.71% | |
| #3 |
AntiSpamCloud
|
0.03% | 20.00% | |
| #4 |
Proofpoint Essentials
|
0.02% | 11.43% | |
| #5 | SpamExperts | 0.01% | 8.57% | |
| … | ||||
| #11 | CloudFilter Current page | <0.01% | 2.86% | |
Percentages show adoption among launches found via StackScope Discovery: the share of all such launches, and of those using any Email Security tool. All 14 in Email Security →
Often used with
| Tool | Launches |
|---|---|
Cloudflare
|
1 |
Cloudflare DNS
|
1 |
Cloudflare Web Analytics
|
1 |
Google Sign-In
|
1 |
Google Search Console
|
1 |
Tools most often detected on the same launches as CloudFilter.
