Rezonate's tech stack
What does Rezonate use?
Rezonate (keyreply.com) uses at least 15 tools we can see from public records, including Microsoft Azure for hosting, Microsoft 365 for email and documents, HubSpot for sales and Zendesk for customer support. Last checked .
“Rezonate (formerly KeyReply) is the engagement intelligence company: the platform that completes the work behind every interaction. Through kira, its omnichannel AI assistant and orchestration platform that completes the work, Rezonate carries context across conversations, channels and systems, then”
- Industry
- IT Services
- Size
- 11–50 employees
- Based in
- Singapore, Singapore
- Founded
- 2016
- Company page
- Tools found
- 15
- Categories
- 12
- Layers
- 5 of 5
- Last checked
- Oct 2026
Rezonate's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
4 tools, where the bytes are served from
Application
3 tools, what the product is built with
Auth & Identity
Data & Observability
1 tool, what they measure and store
Monitoring
Go-to-market
3 tools, how they find and keep customers
Company Ops
4 tools, what the team runs on day to day
Rezonate tech stack FAQ
What tools does Rezonate use?
We've found 15 tools at Rezonate (keyreply.com). Edge & Hosting: Cloudflare, GoDaddy and Amazon CloudFront. Application: Anthropic and Auth0. Data & Observability: Atlassian Statuspage. Go-to-market: HubSpot, Zendesk and HubSpot CMS. Company Ops: Microsoft 365, SendGrid and Atlassian. Last checked October 6, 2026.
What cloud does Rezonate run on?
Rezonate uses Microsoft Azure for hosting. We found Microsoft Azure through custom domain.
What CRM does Rezonate use?
Rezonate uses HubSpot for sales and CRM. We found HubSpot through custom domain and email records.
What email provider does Rezonate use?
Rezonate uses Microsoft 365 for email and documents. We found Microsoft 365 through email records.
What does Rezonate use for customer support?
Rezonate uses Zendesk for customer support. We found Zendesk through email records.
What CMS does Rezonate use?
Rezonate uses HubSpot CMS for its website. We found HubSpot CMS through custom domain.
Does Rezonate use Microsoft 365?
Yes. We found Microsoft 365 at Rezonate through email records. Microsoft 365 is used by 685,702 companies we track.
How does runsonwhat know what Rezonate uses?
We read public traces only: Rezonate's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.