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Marketing automation & CRM
Customer.io market share on brand websites
Customer.io runs on 0% of brand websites in our sample (0 of 1,277). Market share by country, top sites using it and technologies it is paired with.
0%
Share in UK brands
0 / 1,277
16
frequent companions
Google Tag Manager
By market
- UK brands0%0
- United Kingdom<0.1%1
- Global<0.1%19
Often used with
- Google Tag ManagerTag managers68%×1.8
- WordPressCMS42%×2.4
- jQueryJavaScript libraries37%
- Google FontsWeb fonts37%
- CloudflareCDN37%
- IntercomLive chat & support32%×45.6
- Yoast SEOCMS32%×3.6
- Amazon CloudFrontCDN26%×2.7
- Meta PixelAdvertising & pixels26%×5.5
- core-jsJavaScript libraries26%×2.4
Top sites using Customer.io
Data is still being collected — check back soon.
Our crawler: 1,277 sites · UK brands · updated 13 Nov 2026 · Methodology
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