Cortex's tech stack
What does Cortex use?
Cortex (cortex.io) uses at least 43 tools we can see from public records, including Google Cloud for hosting, Microsoft 365 for email and documents, Vector for sales and Zendesk for customer support. Last checked .
“Cortex is the Internal Developer Portal eliminating “developer tax”…”
- Industry
- Infrastructure
- Size
- 51–200 employees
- Based in
- San Francisco, United States
- Tools found
- 43
- Categories
- 19
- Oldest proven tool
- Jan 2022
- Last checked
- Oct 2026
Cortex'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
10 tools, what the product is built with
Data & Observability
4 tools, what they measure and store
Monitoring
Flags & Experiments
Go-to-market
16 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Support & Docs
Company Ops
8 tools, what the team runs on day to day
Email Delivery
Collaboration
Dev Tools
Security & Compliance
What changed at Cortex
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Cortex tech stack FAQ
What tools does Cortex use?
We've found 43 tools at Cortex (cortex.io). Edge & Hosting: Cloudflare, Google Cloud and Amazon CloudFront. Application: Google Fonts, YouTube and GSAP. Data & Observability: Google Analytics, Google Tag Manager and VWO. Go-to-market: Google Ads, LinkedIn Insight Tag and Brevo. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 2, 2026.
What cloud does Cortex run on?
Cortex uses Google Cloud and Vercel for hosting. We found Google Cloud through DNS records.
What CRM does Cortex use?
Cortex uses Vector, Chili Piper and Reo.dev for sales and CRM, among 4 tools in this category. We found Vector through website code.
What email provider does Cortex use?
Cortex uses Microsoft 365, Google Workspace and Apple Business for email and documents. We found Microsoft 365 through DNS verification records.
What does Cortex use for customer support?
Cortex uses Zendesk, Mintlify and Thought Industries for customer support. We found Zendesk through email records and website code.
What analytics tools does Cortex use?
Cortex uses Google Analytics and Google Tag Manager for analytics. We found Google Analytics through website code.
Does Cortex use Microsoft 365?
Yes. We found Microsoft 365 at Cortex through DNS verification records. Microsoft 365 is used by 363,856 companies we track.
How does runsonwhat know what Cortex uses?
We read public traces only: Cortex'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.