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Marketing automation & CRM
Customer.io usage in the UK
Customer.io runs on <0.1% of UK websites in our sample (1 of 11,322). Market share by country, top sites using it and technologies it is paired with.
<0.1%
Share in United Kingdom
1 / 11,322
<0.1%
Among local business websites
1 / 20,305
16
frequent companions
Google Tag Manager
By market
- United Kingdom<0.1%1
- Global<0.1%19
- Netherlands<0.1%2
- Italy0%0
- Spain0%0
- Japan0%0
- Latin America0%0
Trend
Often used with
- Google Tag ManagerTag managers68%×1.8
- WordPressCMS42%×2.4
- Google FontsWeb fonts37%
- CloudflareCDN37%
- jQueryJavaScript libraries37%
- IntercomLive chat & support32%×45.6
- Yoast SEOCMS32%×3.6
- Meta PixelAdvertising & pixels26%×5.5
- core-jsJavaScript libraries26%×2.4
- jQuery MigrateJavaScript libraries26%×2.7
Top sites using Customer.io
| Tranco | Site | Also uses | Hosting |
|---|---|---|---|
| 955,143 | heinztohome.co.uk | AstroAwinCloudflareDidomiGoogle FontsGoogle Tag Manager | Fastly |
Our crawler: 11,322 sites · United Kingdom · updated 13 Nov 2026 · Methodology
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