Websites using Customer.io
Create personalized journeys across all channels with Customer.io's customer engagement platform.
Customer.io is currently installed on 4,143 websites.
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Customer.io Usage Over Time
Total websites with Customer.io installed, measured weekly.
| Week | Installs |
|---|---|
| 2025-06-14 | 663 |
| 2025-06-21 | 1,006 |
| 2025-06-28 | 1,331 |
| 2025-07-05 | 1,654 |
| 2025-07-12 | 1,989 |
| 2025-07-19 | 2,396 |
| 2025-07-26 | 2,680 |
| 2025-08-02 | 3,001 |
| 2025-08-09 | 3,280 |
| 2025-08-16 | 3,313 |
| 2025-08-23 | 3,341 |
| 2025-08-30 | 3,364 |
| 2025-09-06 | 3,414 |
| 2025-09-13 | 3,454 |
| 2025-09-20 | 3,477 |
| 2025-09-27 | 3,518 |
| 2025-10-04 | 3,537 |
| 2025-10-11 | 3,562 |
| 2025-10-18 | 3,589 |
| 2025-10-25 | 3,617 |
| 2025-11-01 | 3,672 |
| 2025-11-08 | 3,720 |
| 2025-11-15 | 3,757 |
| 2025-11-22 | 3,789 |
| 2025-11-29 | 3,823 |
| 2025-12-06 | 3,852 |
| 2025-12-13 | 4,017 |
| 2025-12-20 | 4,143 |
| 2025-12-27 | 4,175 |
| 2026-01-03 | 4,193 |
| 2026-01-10 | 4,210 |
| 2026-01-17 | 4,239 |
| 2026-01-24 | 4,262 |
| 2026-01-31 | 4,286 |
| 2026-02-07 | 4,164 |
| 2026-02-14 | 4,182 |
| 2026-02-21 | 3,852 |
| 2026-02-28 | 3,717 |
| 2026-03-07 | 3,812 |
| 2026-03-14 | 3,834 |
| 2026-03-21 | 3,849 |
| 2026-03-28 | 3,838 |
| 2026-04-04 | 3,872 |
| 2026-04-11 | 3,903 |
| 2026-04-18 | 3,955 |
| 2026-04-25 | 3,984 |
| 2026-05-02 | 4,021 |
| 2026-05-09 | 4,024 |
| 2026-05-16 | 4,027 |
| 2026-05-23 | 4,041 |
| 2026-05-30 | 4,045 |
| 2026-06-06 | 4,066 |
| 2026-06-13 | 4,096 |
| 2026-06-20 | 4,143 |
Top Websites Using Customer.io
Here are the top 5 websites running Customer.io ordered by rank.
| Domain | Title | Rank |
|---|---|---|
| mxtoolbox.com | MX Lookup Tool - Check your DNS MX Records online - MxToolbox | 224 |
| yougov.com | YouGov: Data Analytics & Market Research Services | 533 |
| streamlabs.com | Streamlabs | #1 free set of tools for live streamers and gamers | 609 |
| testbook.com | Testbook.com - India's No.1 Govt Exam Preparation Site | Online Course | Mock Test | 657 |
| buffalonews.com | buffalonews.com | Read the latest Buffalo, NY, and Erie County news from the Buffalo News. Get headlines on local weather, entertainment, and events. | 915 |
Top Countries for Websites Using Customer.io
Here is the country breakdown for websites with Customer.io installed.
- 89.3% of websites using Customer.io are in
- 1.6% of websites using Customer.io are in Canada
- 1% of websites using Customer.io are in United Kingdom
- 0.8% of websites using Customer.io are in Australia
| Country | Websites |
|---|---|
| 3,698 | |
| Canada | 65 |
| United Kingdom | 42 |
| Australia | 35 |
| United States | 32 |
| Netherlands | 22 |
| Germany | 20 |
| India | 18 |
| Belgium | 16 |
| New Zealand | 16 |
Top Categories for Websites Using Customer.io
Here are the top industry verticals for websites using Customer.io.
- 25.7% of websites using Customer.io are in the Games category.
- 14.7% of websites using Customer.io are in the Business & Industrial category.
- 11.9% of websites using Customer.io are in the Sports category.
- 11.4% of websites using Customer.io are in the Computers & Electronics category.
| Category | Websites |
|---|---|
| Games | 1,066 |
| Business & Industrial | 610 |
| Sports | 495 |
| Computers & Electronics | 471 |
| Internet & Telecom | 247 |
| Arts & Entertainment | 244 |
| Finance | 171 |
| Health | 139 |
| Shopping | 124 |
| Jobs & Education | 122 |
Technologies Co-installed with Customer.io
These are the technologies most commonly found alongside Customer.io on the same websites.
| Technology | Websites |
|---|---|
| Google Tag Manager | 2,475 |
| Cloudflare | 2,118 |
| reCAPTCHA | 1,592 |
| Google Adsense | 1,497 |
| Google Ads Pixel | 1,484 |
| Facebook Pixel | 1,061 |
| Tawk | 963 |
| Google Analytics | 917 |
| Zoho SalesIQ | 853 |
| Crisp Chat | 669 |
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