PerimeterX on new websites

1. PerimeterX appeared on about 830 new sites in the last 30 days.^[1]
2. Eight in ten new PerimeterX sites also use Beehiiv.
3. It is unusually common among content launches: 28%, against 6.6% across new sites.

The line is the 7-day average share of new sites that use PerimeterX, 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 PerimeterX itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	HSTS	47.5%	87.5%
2	–	Cloudflare Bot Management	13.7%	25.2%
3	–	Google reCAPTCHA	1.9%	3.5%
4	▲1	Anubis	0.1%	0.2%
5	▼2	DDoS-Guard	0.1%	0.2%
…
7	–	PerimeterX	0.1%	0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Security tool. PerimeterX is typically used alongside HSTS rather than instead of it. All 398 in Security

Tool	Sites with both	vs all new sites	Bar
Birdie	1,499	1895x
Stytch	1,564	1880x
Beehiiv	2,453	1771x
Remix	1,607	1471x
PrismJS	1,598	429x

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

493 of the 3,020 sites using PerimeterX are product launches we list individually. The other 2,527 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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.

Site	Found	Also detected
PlatformMath – Skool, Kajabi, Whop, Stan, Teachable fee calculator (2026) platformmath.com · Finance	Oct 18
GetSeenFootball | Every College Camp, Showcase, Combine & 7v7 in One Place getseenfootball.com	Oct 17
Ranked Agents — Tier list of AI agents & automation tools rankedagents.dev · Directory	Oct 17
Stoploss Sage: Trading Discipline Coach & Journal on Telegram stoplosssage.com · Finance	Oct 17
Home | Batchwatch batchwatch.io	Oct 17
Misconfig Monday: Weekly Patch Priorities for Small IT Teams misconfigmonday.beehiiv.com · Developer Tools	Oct 17
Launch Index launchindex.ai	Oct 17
Look At The Stars — Stargazing & 3D Space App lookatthestars.app	Oct 17
PlanDiff - AI coding tool pricing and limits, compared plandiff.dev · Developer Tools	Oct 17
Checkride Radar | FAA checkride examiner map, fees and wait times checkrideradar.com	Oct 17
InspectorRekt Pro: Case closed before you get rekt. inspectorrekt.com	Oct 17
Raw2ROI — Raw cards in. ROI out. raw2roi.com · United States	Oct 17

Showing the most recent 12 of 493.

The StackScope API serves all 3,020 sites using PerimeterX, 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. 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.
5. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.