Legacy's tech stack
What does Legacy use?
Legacy (givelegacy.com) uses at least 22 tools we can see from public records, including Heroku for hosting, Google Workspace for email and documents, Salesforce for sales and Google Tag Manager for analytics. Last checked .
“Legacy helps you test, improve, and freeze your sperm”
- Industry
- Reproductive Health
- Size
- 11–50 employees
- Based in
- New York City, United States
- Founded
- 2018
- Company page
- Tools found
- 22
- Categories
- 12
- Layers
- 5 of 5
- Last checked
- Oct 2026
Legacy'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
5 tools, where the bytes are served from
Hosting & Cloud
Application
2 tools, what the product is built with
Frontend
Auth & Identity
Data & Observability
3 tools, what they measure and store
Go-to-market
6 tools, how they find and keep customers
Website & CMS
Sales & CRM
Company Ops
6 tools, what the team runs on day to day
Email Delivery
Dev Tools
Legacy tech stack FAQ
What tools does Legacy use?
We've found 22 tools at Legacy (givelegacy.com). Edge & Hosting: Cloudflare, Amazon Route 53 and Amazon CloudFront. Application: jQuery and Auth0. Data & Observability: Google Tag Manager, PostHog and Segment. Go-to-market: Mailchimp, Salesforce and Webflow. Company Ops: Google Workspace, SendGrid and Apple Business. Last checked October 2, 2026.
What cloud does Legacy run on?
Legacy uses Heroku for hosting. We found Heroku through custom domain.
What CRM does Legacy use?
Legacy uses Salesforce for sales and CRM. We found Salesforce through custom domain and email records.
What email provider does Legacy use?
Legacy uses Google Workspace and Apple Business for email and documents. We found Google Workspace through email records.
What analytics tools does Legacy use?
Legacy uses Google Tag Manager, PostHog and Segment for analytics. We found Google Tag Manager through website code.
What CMS does Legacy use?
Legacy uses Webflow for its website. We found Webflow through website code.
Does Legacy use Cloudflare?
Yes. We found Cloudflare at Legacy through website code. Cloudflare is used by 147,753 companies we track.
How does runsonwhat know what Legacy uses?
We read public traces only: Legacy'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.