What does Customer.io: Customer Engagement Platform For Better Outcomes use?

As of October 2026, runsonwhat has found 61 tools at Customer.io: Customer Engagement Platform For Better Outcomes (customer.io) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and Cookiebot. Last checked October 9, 2026.

Customer.io: Customer Engagement Platform For Better Outcomes uses Amazon Web Services for hosting and cloud infrastructure, alongside Vercel and Netlify, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on customer.io. Amazon Web Services is used by 144,842 companies runsonwhat tracks.

Customer.io: Customer Engagement Platform For Better Outcomes uses HubSpot for its CRM, alongside Salesforce, ZoomInfo and RevenueHero, according to runsonwhat (October 2026). runsonwhat found HubSpot through HubSpot code on customer.io. HubSpot is used by 92,068 companies runsonwhat tracks.

Customer.io: Customer Engagement Platform For Better Outcomes uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 701,702 companies runsonwhat tracks.

Customer.io: Customer Engagement Platform For Better Outcomes uses Zendesk for customer support and documentation, alongside LiveChat and Help Scout, according to runsonwhat (October 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on customer.io. Zendesk is used by 40,922 companies runsonwhat tracks.

Customer.io: Customer Engagement Platform For Better Outcomes uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and Vercel Analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on customer.io. Google Analytics is used by 852,516 companies runsonwhat tracks.

Customer.io: Customer Engagement Platform For Better Outcomes has used Netlify since at least February 2019, going by the first public certificate of the customer.io subdomain that points at Netlify. Other long-running tools at Customer.io: Customer Engagement Platform For Better Outcomes include Framer (since 2021), Amazon CloudFront (since March 2023) and Vercel (since September 2024).

Yes. runsonwhat found Cloudflare at Customer.io: Customer Engagement Platform For Better Outcomes through Cloudflare code on customer.io. Cloudflare is a CDN & Edge tool used by 692,310 companies runsonwhat tracks.

Yes. runsonwhat has found Anthropic and OpenAI at Customer.io: Customer Engagement Platform For Better Outcomes; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Customer.io: Customer Engagement Platform For Better Outcomes may use more AI tools than these.

Yes. On runsonwhat's rechecks, Customer.io: Customer Engagement Platform For Better Outcomes started using RevenueHero (latest on October 9, 2026). A change counts only between two checks of customer.io done the same way.

The companies with the stacks most like Customer.io: Customer Engagement Platform For Better Outcomes' are Mixpanel, Aya Healthcare, ShipBob and Employment Hero, according to runsonwhat (October 2026). Each shares 24 to 32 tools with Customer.io: Customer Engagement Platform For Better Outcomes, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

runsonwhat reads public records only. Of the 61 tools at Customer.io: Customer Engagement Platform For Better Outcomes, 23 were found through DNS records, 22 through code on customer.io, 9 through email records, 6 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and customer.io about monthly.