Dear U's tech stack
What does Dear U use?
Dear U (dear-u.co) uses at least 9 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, Amazon CloudFront for content delivery and SendGrid for email delivery. Last checked .
- Industry
- Software
- Based in
- South Korea
- Founded
- 2017
- Tools found
- 9
- Categories
- 8
- Layers
- 4 of 5
- Last checked
- Oct 2026
Dear U'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
3 tools, where the bytes are served from
Application
3 tools, what the product is built with
Frontend
Media & UI
Go-to-market
1 tool, how they find and keep customers
Marketing
Company Ops
2 tools, what the team runs on day to day
Email Delivery
Workspace
Dear U tech stack FAQ
What tools does Dear U use?
As of October 2026, runsonwhat has found 9 tools at Dear U (dear-u.co) in public records. Edge & Hosting: Amazon Web Services, Amazon Route 53 and Amazon CloudFront. Application: jQuery, Google Fonts and Font Awesome. Company Ops: Microsoft 365 and SendGrid. Last checked October 20, 2026.
What cloud does Dear U run on?
Dear U uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services and code on dear-u.co. Amazon Web Services is used by 145,626 companies runsonwhat tracks.
What email provider does Dear U use?
Dear U uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on dear-u.co. Microsoft 365 is used by 710,129 companies runsonwhat tracks.
Does Dear U use jQuery?
Yes. runsonwhat found jQuery at Dear U through jQuery code on dear-u.co. jQuery is a Frontend tool used by 914,938 companies runsonwhat tracks.
How does runsonwhat know what Dear U uses?
runsonwhat reads public records only. Of the 9 tools at Dear U, 3 were found through code on dear-u.co, 2 through DNS records, 2 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and dear-u.co 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.