Index Exchange on new websites

1. Index Exchange appeared on about 20 new sites in the last 30 days.^[1]
2. Nine in ten new Index Exchange sites also use Magnite.

The line is the 7-day average share of new sites that use Index Exchange, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Facebook Pixel	3.4%	47.2%
2	–	Google Ads	2.7%	37.2%
3	–	Google AdSense	1.3%	17.7%
4	–	TikTok Pixel	0.8%	10.7%
5	–	Pinterest	0.6%	8.1%
…
151	▲44	Index Exchange	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Advertising tool. Among September launches it ranked #125 in Advertising, up from #169 in August. All 1289 in Advertising

Tool	Sites with both	vs all new sites	Bar
Magnite	36	25335x
Criteo	32	6782x
Google Analytics	30	7.1x
Google Tag Manager	30	6.2x

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

1 of the 41 sites using Index Exchange are product launches we list individually. The other 40 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site	Found	Also detected
WorldVision worldvision.in · India	Jun 18

Watches, exports and the API give you all 41 sites using Index Exchange, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. 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.