Firsteigen's tech stack
What does Firsteigen use?
Firsteigen (firsteigen.com) uses at least 12 tools we can see from public records, including Microsoft 365 for email and documents, Saleshandy for sales, Google Tag Manager for analytics and WordPress for its website. Last checked .
- Industry
- Software
- Size
- 11–50 employees
- Based in
- Naperville, United States
- Founded
- 2015
- Company page
- Tools found
- 12
- Categories
- 10
- Layers
- 5 of 5
- Last checked
- Oct 2026
Firsteigen'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
Application
1 tool, what the product is built with
Media & UI
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
4 tools, how they find and keep customers
Website & CMS
Marketing
Sales & CRM
Company Ops
4 tools, what the team runs on day to day
Firsteigen tech stack FAQ
What tools does Firsteigen use?
We've found 12 tools at Firsteigen (firsteigen.com). Edge & Hosting: Cloudflare and GoDaddy. Application: Google Fonts. Data & Observability: Google Tag Manager. Go-to-market: WordPress, Yoast SEO and Saleshandy. Company Ops: Microsoft 365, Google Workspace and Proofpoint. Last checked October 4, 2026.
What CRM does Firsteigen use?
Firsteigen uses Saleshandy for sales and CRM. We found Saleshandy through custom domain.
What email provider does Firsteigen use?
Firsteigen uses Microsoft 365 and Google Workspace for email and documents. We found Microsoft 365 through DNS verification records and email records.
What analytics tools does Firsteigen use?
Firsteigen uses Google Tag Manager for analytics. We found Google Tag Manager through website code.
What CMS does Firsteigen use?
Firsteigen uses WordPress and Yoast SEO for its website. We found WordPress through website code.
Does Firsteigen use Microsoft 365?
Yes. We found Microsoft 365 at Firsteigen through DNS verification records and email records. Microsoft 365 is used by 437,099 companies we track.
How does runsonwhat know what Firsteigen uses?
We read public traces only: Firsteigen'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.