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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 1,359). Market share by country, top sites using it and technologies it is paired with.

0%

Share in UK brands

0 / 1,359

16

frequent companions

Google Tag Manager

By market

UK brands0%0
United Kingdom<0.1%1
Global<0.1%17

Often used with

Google Tag ManagerTag managers65%×1.7
Google FontsWeb fonts47%×1.8
jQueryJavaScript libraries41%
CloudflareCDN41%
IntercomLive chat & support35%×51.4
WordPressCMS35%×2
Meta PixelAdvertising & pixels29%×6.3
ReactWeb frameworks24%×2
core-jsJavaScript libraries24%×2.2
Google Marketing Platform (DV360/CM360)Advertising & pixels24%×3.2

Top sites using Customer.io

Data is still being collected — check back soon.

Our crawler: 1,359 sites · UK brands · updated 23 Oct 2026 · Methodology

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