Warmy's tech stack
What does Warmy use?
Warmy (warmy.io) uses at least 40 tools we can see from public records, including Amazon Web Services for hosting, Google Workspace for email and documents, HubSpot for sales and WhatsApp Business for customer support. Last checked .
“The most advanced email deliverability tool with an AI-driven algorithm to make your email channel reliable.”
- Industry
- IT Services
- Size
- 11–50 employees
- Based in
- Israel
- Founded
- 2020
- Company page
- Tools found
- 40
- Categories
- 18
- Oldest proven tool
- Nov 2022
- Last checked
- Oct 2026
Warmy'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
Hosting & Cloud
Application
8 tools, what the product is built with
Frontend
Backend & Database
Payments & Billing
Media & UI
Data & Observability
6 tools, what they measure and store
Go-to-market
18 tools, how they find and keep customers
Website & CMS
Marketing
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
4 tools, what the team runs on day to day
Email Delivery
Workspace
Security & Compliance
What changed at Warmy
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Companies like Warmy also use
Tools common among companies with a similar stack that we haven't found at Warmy.
Companies with a stack like Warmy's
Ranked by shared tools, with rare tools counting more.
Ooni USADesign · 201–1,000 people17in common
Katulu GmbHIT Services · 11–50 people6in common
SPARQUE.AIIT Services · 11–50 people9in common
Simple System GmbHIT Services · 11–50 people11in common
Cloud Contracts 365IT Services · 11–50 people14in common
Waydev, IncProductivity · 11–50 people13in common
CollectiveSoftware · 11–50 people15in common
Asserts-Monitoring Software SolutionSoftware · 11–50 people8in common
More IT Services companies
Other IT Services companies we've checked.
Warmy tech stack FAQ
What tools does Warmy use?
As of October 2026, runsonwhat has found 40 tools at Warmy (warmy.io) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Google Fonts, YouTube and React. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and WhatsApp Business. Company Ops: Google Workspace, SendGrid and Mailchimp Transactional. Last checked October 21, 2026.
What cloud does Warmy run on?
Warmy uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on warmy.io. Amazon Web Services is used by 145,759 companies runsonwhat tracks.
What CRM does Warmy use?
Warmy uses HubSpot for its CRM, alongside ZoomInfo, according to runsonwhat (October 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and code on warmy.io, and Warmy has used it since at least November 2022. HubSpot is used by 94,266 companies runsonwhat tracks.
What email provider does Warmy use?
Warmy uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on warmy.io. Google Workspace is used by 403,660 companies runsonwhat tracks.
What does Warmy use for customer support?
Warmy uses WhatsApp Business for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found WhatsApp Business through WhatsApp Business code on warmy.io. WhatsApp Business is used by 135,892 companies runsonwhat tracks.
What payment provider does Warmy use?
Warmy uses Recharge for payments and billing, according to runsonwhat (October 2026). runsonwhat found Recharge through Recharge code on warmy.io. Recharge is used by 1,738 companies runsonwhat tracks.
How long has Warmy used HubSpot?
Warmy has used HubSpot since at least November 2022, going by the first public certificate of the warmy.io subdomain that points at HubSpot. Other long-running tools at Warmy include HubSpot CMS (since November 2022).
Does Warmy use Google Fonts?
Yes. runsonwhat found Google Fonts at Warmy through Google Fonts code on warmy.io. Google Fonts is a Media & UI tool used by 811,872 companies runsonwhat tracks.
Does Warmy use AI tools?
Yes. runsonwhat has found Anthropic at Warmy; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Warmy may use more AI tools than these.
Which companies have a tech stack similar to Warmy's?
The companies with the stacks most like Warmy's are Ooni USA, Katulu, SPARQUE.AI and Simple System, according to runsonwhat (October 2026). Each shares 6 to 17 tools with Warmy, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Warmy uses?
runsonwhat reads public records only. Of the 40 tools at Warmy, 31 were found through code on warmy.io, 4 through email records, 2 through subdomains that point at the vendor, 2 through DNS records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and warmy.io about 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.