Sites using CloudFilter
Hosted email anti-spam and anti-malware filtering for ISPs and email hosts.
Get told when a new site ships with CloudFilter.
Stackdar watches every launch we detect and sends you the ones using CloudFilter, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work86 sites
77 found by StackScope, 9 via launch platforms
- StackScope Wider Web 70
- StackScope Discovery (Indie) 7
- Product Hunt 9
CloudFilter has been detected on 86 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Hare Krishna Bakery, today.
It's most commonly paired with Google Analytics, Google Tag Manager, and Google Search Console. By product type, the launches using it are most often E-commerce (28%), Health (19%), and Developer Tools (13%).
What kind of products ship with CloudFilter
32 launches
Domain endings using CloudFilter
86 sites
- .com 59.30%
- .in 18.60%
- .org 6.98%
- .io 3.49%
- .uk 3.49%
- .net 2.33%
- .app 1.16%
- .co 1.16%
Share of new sites using CloudFilter
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
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
|
0.23% | 53.53% | |
| #2 |
MailSpamProtection
|
0.22% | 52.10% | |
| #3 |
AntiSpamCloud
|
0.09% | 19.96% | |
| #4 | Premium SMTP | 0.02% | 4.33% | |
| #5 |
Proofpoint Essentials
|
0.02% | 3.51% | |
| … | ||||
| #11 | CloudFilter Current page | <0.01% | 0.73% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Email Security tool. All 144 in Email Security →
Often used with
| Tool | Launches |
|---|---|
Google Analytics
|
6 |
Google Tag Manager
|
6 |
Google Search Console
|
4 |
Cloudflare
|
4 |
Cloudflare DNS
|
3 |
Tools most often detected on the same launches as CloudFilter.
Recent launches we can show
16 of the 86 sites using CloudFilter are product launches we list individually. The other 70 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Hare Krishna Bakery
visheshkitchen
UGC Plus Agency — Gifted UGC Creator Collabs, Matched For You
Marketing
TeamSignup — volunteer scheduling that fills itself
ScoreCardAI — AI Diagnostics & Mock Tests for Civil AE/JE
Education
banksac.com — Compare bank accounts, honestly
Finance
BioMotion — athlete intelligence
Health
Alert91
Developer Tools
RoutePe Auto
TenderHut — Search every Indian government tender in one place
CornerSite — Find your piece of land
Babvip Associates
Showing the most recent 12 of 16.
The StackScope API serves all 86 sites using CloudFilter, filterable and exportable, from £15 a month.