Subnet Calc's tech stack
What does Subnet Calc use?
Subnet Calc (subnetcalc.com) uses at least 8 tools we can see from public records, including Microsoft Azure for hosting, Microsoft 365 for email and documents, Freshdesk for customer support and Google Tag Manager for analytics. Last checked .
- Tools found
- 8
- Categories
- 8
- Layers
- 5 of 5
- Last checked
- Oct 2026
Subnet Calc'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
1 tool, where the bytes are served from
Hosting & Cloud
Application
2 tools, what the product is built with
Frontend
Media & UI
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
2 tools, how they find and keep customers
Marketing
Support & Docs
Company Ops
2 tools, what the team runs on day to day
Email Delivery
Workspace
Subnet Calc tech stack FAQ
What tools does Subnet Calc use?
As of October 2026, runsonwhat has found 8 tools at Subnet Calc (subnetcalc.com) in public records. Edge & Hosting: Microsoft Azure. Application: Font Awesome and Next.js. Data & Observability: Google Tag Manager. Go-to-market: Freshdesk. Company Ops: Microsoft 365 and SendGrid. Last checked October 23, 2026.
What cloud does Subnet Calc run on?
Subnet Calc uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure and DNS records. Microsoft Azure is used by 46,679 companies runsonwhat tracks.
What email provider does Subnet Calc use?
Subnet Calc uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 710,129 companies runsonwhat tracks.
What does Subnet Calc use for customer support?
Subnet Calc uses Freshdesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Freshdesk through a subdomain that points at Freshdesk. Freshdesk is used by 12,487 companies runsonwhat tracks.
What analytics tools does Subnet Calc use?
Subnet Calc uses Google Tag Manager for analytics, according to runsonwhat (October 2026). runsonwhat found Google Tag Manager through Google Tag Manager code on subnetcalc.com. Google Tag Manager is used by 501,790 companies runsonwhat tracks.
Does Subnet Calc use Font Awesome?
Yes. runsonwhat found Font Awesome at Subnet Calc through Font Awesome code on subnetcalc.com. Font Awesome is a Media & UI tool used by 423,925 companies runsonwhat tracks.
How does runsonwhat know what Subnet Calc uses?
runsonwhat reads public records only. Of the 8 tools at Subnet Calc, 3 were found through code on subnetcalc.com, 2 through DNS records, 2 through subdomains that point at the vendor and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and subnetcalc.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.