Greyhaven's tech stack
What does Greyhaven use?
Greyhaven (greywall.io) uses at least 7 tools we can see from public records, including Vercel for hosting, Fastmail for email and documents and Cloudflare for content delivery. Last checked .
- Tools found
- 7
- Categories
- 7
- Layers
- 4 of 5
- Last checked
- Oct 2026
Greyhaven'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
Hosting & Cloud
CDN & Edge
Application
3 tools, what the product is built with
Go-to-market
1 tool, how they find and keep customers
Marketing
Company Ops
1 tool, what the team runs on day to day
Workspace
Companies like Greyhaven also use
Tools common among companies with a similar stack that we haven't found at Greyhaven.
Companies with a stack like Greyhaven's
Ranked by shared tools, with rare tools counting more.
Greyhaven tech stack FAQ
What tools does Greyhaven use?
We've found 7 tools at Greyhaven (greywall.io). Edge & Hosting: Cloudflare and Vercel. Application: YouTube and Next.js. Company Ops: Fastmail. Last checked October 2, 2026.
What cloud does Greyhaven run on?
Greyhaven uses Vercel for hosting. We found Vercel through DNS records and website code.
What email provider does Greyhaven use?
Greyhaven uses Fastmail for email and documents. We found Fastmail through email records.
Does Greyhaven use Cloudflare?
Yes. We found Cloudflare at Greyhaven through DNS records. Cloudflare is used by 147,753 companies we track.
How does runsonwhat know what Greyhaven uses?
We read public traces only: Greyhaven'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.