LeanStream's tech stack
What does LeanStream use?
LeanStream (leanstreamrp.com) uses at least 10 tools we can see from public records, including Microsoft 365 for email and documents, HubSpot for sales, HubSpot CMS for its website and Sentry for monitoring. Last checked .
- Tools found
- 10
- Categories
- 9
- Layers
- 5 of 5
- Changes seen
- 1
LeanStream'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
2 tools, where the bytes are served from
CDN & Edge
DNS
Application
1 tool, what the product is built with
Backend & Database
Data & Observability
2 tools, what they measure and store
Monitoring
Go-to-market
3 tools, how they find and keep customers
Company Ops
2 tools, what the team runs on day to day
Email Delivery
Workspace
What changed at LeanStream
Recent starts and stops
- StartedResend
LeanStream tech stack FAQ
What tools does LeanStream use?
As of November 2026, runsonwhat has found 10 tools at LeanStream (leanstreamrp.com) in public records. Edge & Hosting: Cloudflare and GoDaddy. Application: Supabase. Data & Observability: Sentry and web-vitals. Go-to-market: HubSpot and HubSpot CMS. Company Ops: Microsoft 365 and Resend. Last checked October 31, 2026.
What CRM does LeanStream use?
LeanStream uses HubSpot for its CRM, according to runsonwhat (November 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot. HubSpot is used by 96,305 companies runsonwhat tracks.
What email provider does LeanStream use?
LeanStream uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 719,803 companies runsonwhat tracks.
What is LeanStream's website built with?
LeanStream uses HubSpot CMS for its website, according to runsonwhat (November 2026). runsonwhat found HubSpot CMS through a subdomain that points at HubSpot CMS. HubSpot CMS is used by 33,678 companies runsonwhat tracks.
What monitoring tools does LeanStream use?
LeanStream uses Sentry for monitoring, alongside web-vitals, according to runsonwhat (November 2026). runsonwhat found Sentry through Sentry code on leanstreamrp.com. Sentry is used by 80,054 companies runsonwhat tracks.
Does LeanStream use Cloudflare?
Yes. runsonwhat found Cloudflare at LeanStream through Cloudflare code on leanstreamrp.com. Cloudflare is a CDN & Edge tool used by 724,796 companies runsonwhat tracks.
Has LeanStream changed tools recently?
Yes. On runsonwhat's rechecks, LeanStream started using Resend (latest on October 20, 2026). A change counts only between two checks of leanstreamrp.com done the same way.
How does runsonwhat know what LeanStream uses?
runsonwhat reads public records only. Of the 10 tools at LeanStream, 4 were found through code on leanstreamrp.com, 2 through DNS records, 2 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and leanstreamrp.com 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.