Seznam on new websites

1. Seznam appeared on about 43 new sites in the last 30 days.^[1]
2. Nine in ten new Seznam sites also use Google Tag Manager.

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

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Facebook Pixel	3.4%	47.1%
2	–	Google Ads	2.7%	37.2%
3	–	Google AdSense	1.3%	17.8%
4	–	TikTok Pixel	0.8%	10.6%
5	–	Pinterest	0.6%	8.1%
…
83	▼27	Seznam	<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 #99 in Advertising, down from #72 in August. All 1272 in Advertising

Tool	Sites with both	vs all new sites	Bar
Facebook Pixel	72	19x
Google Ads	43	14x
Google Analytics	105	9.1x
Google Tag Manager	109	8.3x
jQuery	73	4.6x

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

11 of the 112 sites using Seznam are product launches we list individually. The other 101 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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.

• Stavbid stavbid.cz
• Senior Care Finder CZ domovseniori.cz
• VIN Vehicle Check provereni-vin.cz
• Insolvenční rejstřík — vyhledávání podle IČO zdarma isironline.cz
• Tabidoo tabidoo.cloud
• Salesbot salesbot.cz

Site	Found	Also detected
Stavbid stavbid.cz · Czechia	Oct 17
Rozhledny v Česku: mapa a plánovač cesty narozhlednu.cz · Czechia	Oct 6
Senior Care Finder CZ domovseniori.cz · Czechia	Oct 6
VIN Vehicle Check provereni-vin.cz · Czechia	Oct 3
Insolvenční rejstřík — vyhledávání podle IČO zdarma isironline.cz · Czechia	Sep 25
Grimoiry · Every command is a spell. grim.grimoiry.com · Developer Tools · Czechia	Sep 20
Tabidoo tabidoo.cloud · Productivity · France	Aug 31
analytiko.cz — Data místo emocí. Investice s AI. analytiko.online · AI · Czechia	Aug 29
Salesbot salesbot.cz · AI · Czechia	Aug 26
Veritra — veřejné zakázky na jednom místě veritra.io · Developer Tools · Czechia	Aug 24
Sporťáci – Najdi parťáky na sport ve svém okolí sportaci.app · Czechia	Aug 2

The StackScope API serves all 112 sites using Seznam, 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.