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CloudFilter on new websites

Name: CloudFilter adoption on new websites
Creator: StackScope

Hosted email anti-spam and anti-malware filtering for ISPs and email hosts.

#11 of 174 in Email Security First seen: Apr 9, 2026 Last seen: Oct 16, 2026 Most recent launch: WinBackly — Turn Missed Follow-Ups Into Booked Jobs, Oct 14, 2026

154 sites

143 found by StackScope, 11 via launch platforms

StackScope Wider Web 126
StackScope Discovery (Indie) 17
Product Hunt 11

View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web

CloudFilter appeared on about 36 new sites in the last 30 days.

These figures cover websites that went live since April 2026, not the web as a whole.

Stackdar alerts

Get told when a new site ships with CloudFilter.

36 new sites with CloudFilter first seen in the last 30 days.

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 work

Share of new sites using CloudFilter

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026.

0.0%

last 7 days

-0.0pp vs prior week

0.0%

30 days to Oct 16

-0.0pp vs 30 days before

154

sites all time

since Apr 2026

Mar 30, 2026 90 days Oct 16, 2026

The shaded areas were measured against a different set of sites, so the line can step there without CloudFilter itself changing.

Coverage details

Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.

Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.

Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.

The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

What kind of sites use CloudFilter

57 sites with a known type, all time

E-commerce

17.5%

Health

15.8%

Marketing

15.8%

Developer Tools

12.3%

Education

10.5%

Finance

8.8%

Design

5.3%

Productivity

5.3%

Content

3.5%

Hiring & HR

3.5%

Games

1.8%

Domain endings using CloudFilter

154 sites, all time

.com 63.6%
.in 16.9%
.org 5.2%
.uk 2.6%
.io 2.0%
.net 2.0%
.online 2.0%
.app 1.3%
.co 1.3%
.au 0.7%
.company 0.7%

Country

Country likely for 31 of 154 sites (20.1%), all time.

How we know

Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.

India 67.7%
United Kingdom 16.1%
Sri Lanka 6.5%
Australia 3.2%
Italy 3.2%
United States 3.2%

Email Security leaders

		Tool	% of sitesall time	% of categoryall time
#1	–	AntiSpamCloud	0.1%	33.8%
#2	–	Proofpoint Essentials	0.1%	32.3%
#3	–	Premium SMTP	<0.1%	7.8%
#4	–	SpamExperts	<0.1%	4.6%
#5	–	MailSentinel	<0.1%	2.9%
…
#11	▼2	CloudFilter Current page	<0.1%	0.9%

Percentages show all-time adoption across the new sites we track: the share of all of them, and of the sites using any Email Security tool.Among September launches it ranked #11 in Email Security, down from #9 in August. All 174 in Email Security →

Often used with

Tool	Sites	vs all new sites
Register.com	41	6223x
LiteSpeed Web Server	48	4.7x
Font Awesome	43	4.2x
nginx	36	2.4x
jQuery	52	2.4x

Tools that turn up far more often on CloudFilter sites than on new sites in general, and how many times as common each one is there.

Recent launches using CloudFilter

28 of the 154 sites using CloudFilter are product launches we list individually. The other 126 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works

WinBackly — Turn Missed Follow-Ups Into Booked Jobs Oct 14, 2026 · Marketing Also detected