runsonwhat

Klaviyo, Inc.'s tech stack

What does Klaviyo, Inc. use?

Klaviyo, Inc. (klaviyo.com) uses at least 86 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, HubSpot for sales and Zendesk for customer support. Last checked .

Industry
Marketing Software
Based in
Boston, United States
Founded
2012
LinkedIn
Company page
Re-check liveVisit klaviyo.com
Tools found
86
Categories
23
Oldest proven tool
Aug 2017
Last checked
Oct 2026

Klaviyo, Inc.'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

8 tools, where the bytes are served from

Hosting & Cloud

CDN & Edge

DNS

Application

7 tools, what the product is built with

Frontend

AI

Payments & Billing

Media & UI

Data & Observability

9 tools, what they measure and store

Monitoring

Analytics

Flags & Experiments

Go-to-market

31 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Sales & CRM

Support & Docs

Company Ops

31 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Dev Tools

People & HR

Finance & Legal

Security & Compliance

Other traces

What changed at Klaviyo, Inc.

Using since

Dates come from the first certificate of the subdomain that points at the tool.

  1. Cloudflare
  2. Fastly
  3. Atlassian Statuspage
  4. Heroku
  5. Aptible
  6. HubSpot
  7. HubSpot CMS

Companies like Klaviyo, Inc. also use

Tools common among companies with a similar stack that we haven't found at Klaviyo, Inc..

Companies with a stack like Klaviyo, Inc.'s

Ranked by shared tools, with rare tools counting more.

Klaviyo, Inc. tech stack FAQ

What tools does Klaviyo, Inc. use?

We've found 86 tools at Klaviyo, Inc. (klaviyo.com). Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Google Fonts, Vimeo and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Sentry. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 2, 2026.

What cloud does Klaviyo, Inc. run on?

Klaviyo, Inc. uses Amazon Web Services, Vercel and Netlify for hosting, among 5 tools in this category. We found Amazon Web Services through website code.

What CRM does Klaviyo, Inc. use?

Klaviyo, Inc. uses HubSpot, Salesforce and Demandbase for sales and CRM, among 7 tools in this category. We found HubSpot through custom domain, DNS verification records and website code since March 2025.

What email provider does Klaviyo, Inc. use?

Klaviyo, Inc. uses Microsoft 365, Google Workspace and Apple Business for email and documents. We found Microsoft 365 through DNS verification records.

What does Klaviyo, Inc. use for customer support?

Klaviyo, Inc. uses Zendesk and Drift for customer support. We found Zendesk through email records and website code.

What payment provider does Klaviyo, Inc. use?

Klaviyo, Inc. uses Stripe for payments. We found Stripe through DNS verification records and website code.

Does Klaviyo, Inc. use Microsoft 365?

Yes. We found Microsoft 365 at Klaviyo, Inc. through DNS verification records. Microsoft 365 is used by 333,132 companies we track.

How does runsonwhat know what Klaviyo, Inc. uses?

We read public traces only: Klaviyo, Inc.'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.