Reference
Recognised Search Engine Domains
When a visitor arrives on your site from one of these domains (without paid UTM parameters), they’re categorised as Organic Search.
This list is maintained by SourceTag and updated regularly. You can extend it per site by adding extra domains to the Organic Search channel in your channel settings.
Google (50+ country variants)
google.com, google.co.nz, google.co.uk, google.com.au, google.ca, google.de, google.fr, google.es, google.it, google.nl, google.co.in, google.co.jp, google.com.br, google.pl, google.com.mx, google.com.ar, google.co.za, google.com.sg, google.co.id, google.co.th, google.com.ph, google.com.vn, google.com.tr, google.co.kr, google.com.eg, google.com.ng, google.se, google.no, google.dk, google.fi, google.be, google.at, google.ch, google.pt, google.ie, google.cl, google.com.co, google.com.pe, google.ro, google.cz, google.hu, google.gr, google.com.ua, google.sk, google.bg, google.hr, google.rs, google.lt, google.lv, google.ee, google.si, google.is
Microsoft Bing
bing.com, www.bing.com
Yahoo
yahoo.com, yahoo.co.jp, search.yahoo.com
DuckDuckGo
duckduckgo.com
Yandex
yandex.ru, yandex.com, yandex.by, yandex.kz, yandex.ua
Baidu
baidu.com, www.baidu.com
Privacy-focused engines
ecosia.org, startpage.com, search.brave.com, qwant.com, swisscows.com, mojeek.com, you.com, neeva.com, searx.me, metager.org
Regional engines
naver.com (South Korea), seznam.cz (Czech Republic), sogou.com (China), so.com (China / 360 Search), ask.com, aol.com, search.aol.com, rambler.ru (Russia), mail.ru (Russia), virgilio.it (Italy), sapo.pt (Portugal), daum.net (South Korea), onet.pl (Poland), wp.pl (Poland), terra.com.br (Brazil), biglobe.ne.jp (Japan), goo.ne.jp (Japan), coccoc.com (Vietnam)
AI search engines
chatgpt.com (ChatGPT), claude.ai (Claude), gemini.google.com (Gemini), copilot.microsoft.com (Copilot), meta.ai (Meta AI), kagi.com (Kagi), andisearch.com (Andi), arc.net (Arc Search), perplexity.ai (Perplexity), phind.com (Phind)
Note: The www. variants of all domains are handled automatically. SourceTag strips www. from referrer domains before matching, so www.google.com and google.com both match.
Missing a search engine? You can add extra domains to your Organic Search channel via the channel settings in your SourceTag dashboard. Or let us know and we’ll add it to the default list.