Exclaimer on new websites

1. Exclaimer appeared on 12 new sites in the last 30 days.^[1]
2. Almost all new Exclaimer sites also use Microsoft 365.

The line is the 7-day average share of new sites that use Exclaimer, day by day for the last 90 days and weekly before that (left of the dashed line). The shaded areas were measured against a different set of sites, so the line can step there without Exclaimer itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Google Workspace	5.7%	19.9%
2	–	Hostinger Email	4.8%	16.6%
3	–	GoDaddy Email	2.3%	7.9%
4	–	Microsoft 365	2.0%	6.9%
5	▲1	IONOS Email	1.7%	5.9%
…
438	▼17	Exclaimer	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Email Hosting tool. Among September launches it ranked #476 in Email Hosting, down from #459 in August. All 4854 in Email Hosting

Tool	Sites with both	vs all new sites	Bar
Microsoft 365	61	49x
Google Tag Manager	37	5.0x
Google Analytics	32	4.9x
jQuery	37	4.2x

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

13 of the 63 sites using Exclaimer are product launches we list individually. The other 50 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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.

• Roof Cleaning Companies windowhero.com
• House Washing Charleston windowhero.com
• Greensboro Window Washers windowhero.com
• Northern Tampa Florida windowhero.com
• Homestead Experts homesteadexperts.com
• Checkmarx Next Generation SAST checkmarx.com

Site	Found	Also detected
Roof Cleaning Companies windowhero.com · United States	Oct 19
House Washing Charleston windowhero.com · United States	Sep 5
Greensboro Window Washers windowhero.com · United States	Sep 5
Northern Tampa Florida windowhero.com · United States	Sep 5
Sigigo | Evidence Infrastructure for the AI Era sigigo.com · Developer Tools	Sep 2
KAMEO — AI Infrastructure for Real-World Engineering kameolab.com	Aug 18
Clundra — Run software. Not infrastructure. clundra.com · Developer Tools	Aug 14
Homestead Experts homesteadexperts.com	Jul 30
Checkmarx Next Generation SAST checkmarx.com · Developer Tools · United States	Jun 16
Lumos AI by NetMonkeys netmonkeys.co.uk · United Kingdom	Jun 11
Unio Digital unio.digital	May 18
Net AI netai.tech · AI	Apr 28

Showing the most recent 12 of 13.

The StackScope API serves all 63 sites using Exclaimer, filterable and exportable, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well, so the share is measured against a much larger set of sites. For one continuous measure, view launch platforms only.
3. 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.
4. 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. We count a country only where it is stated plainly enough to be sure: a governing-law clause or company registration number on a legal page, a phone country code, or a country domain ending. Sites that publish none are not counted at all.