DuoCircle LLC's tech stack
What does DuoCircle LLC use?
DuoCircle LLC (duocircle.com) uses at least 21 tools we can see from public records, including Google Cloud for hosting, Freshdesk for customer support, Umami for analytics and WorkOS for sign-in. DuoCircle LLC has used Freshdesk since Oct 2013, going by certificate records. Last checked .
“DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.”
- Industry
- IT Services
- Size
- 11–50 employees
- Based in
- San Diego, United States
- Founded
- 2014
- Company page
- Tools found
- 21
- Categories
- 14
- Oldest proven tool
- Oct 2013
- Last checked
- Nov 2026
DuoCircle LLC's stack, layer by layer
Of 21 tools, 9 came from website code, 5 from email records, 5 from custom domain and 2 from other records. 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
CDN & Edge
Application
4 tools, what the product is built with
Data & Observability
4 tools, what they measure and store
Monitoring
Go-to-market
4 tools, how they find and keep customers
Company Ops
4 tools, what the team runs on day to day
Email Delivery
Workspace
Security & Compliance
What changed at DuoCircle LLC
Companies like DuoCircle LLC also use
Tools common among companies with a similar stack that we haven't found at DuoCircle LLC.
Companies with a stack like DuoCircle LLC's
Ranked by shared tools, with rare tools counting more.
GameAnalyticsVideo Games · 11–50 people13in common
Expedient Enterprise Cloudexpedient.cloud2in common
VomoIT Services · 11–50 people8in common
FriendliAISoftware · 11–50 people11in common
millionwaysSoftware · 11–50 people5in common
Gigged.aiSoftware · 11–50 people6in common
MonpaySoftware · 11–50 people2in common
LegitimateInternet · 11–50 people9in common
More IT Services companies
Other IT Services companies we've checked.
DuoCircle LLC tech stack FAQ
What tools does DuoCircle use?
As of November 2026, runsonwhat has found 21 tools at DuoCircle (duocircle.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Tailwind CSS, Astro and WorkOS. Data & Observability: Google Analytics, Google Tag Manager and Umami. Go-to-market: Google Ads, Meta Pixel and Mailchimp. Company Ops: Google Workspace, SendGrid and Mailchimp Transactional. Last checked November 1, 2026.
What cloud does DuoCircle run on?
DuoCircle uses Amazon Web Services for hosting and cloud infrastructure, alongside Google Cloud and Vercel, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on duocircle.com. Amazon Web Services is used by 147,125 companies runsonwhat tracks.
What email provider does DuoCircle use?
DuoCircle uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on duocircle.com. Google Workspace is used by 415,469 companies runsonwhat tracks.
What does DuoCircle use for customer support?
DuoCircle uses Freshdesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Freshdesk through a subdomain that points at Freshdesk and code on duocircle.com, and DuoCircle has used it since at least October 2013. Freshdesk is used by 12,777 companies runsonwhat tracks.
What analytics tools does DuoCircle use?
DuoCircle uses Google Analytics for analytics, alongside Google Tag Manager and Umami, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on duocircle.com. Google Analytics is used by 905,965 companies runsonwhat tracks.
What marketing software does DuoCircle use?
DuoCircle uses Mailchimp for marketing, according to runsonwhat (November 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 118,196 companies runsonwhat tracks.
How long has DuoCircle used Freshdesk?
DuoCircle has used Freshdesk since at least October 2013, going by the first public certificate of the duocircle.com subdomain that points at Freshdesk. Other long-running tools at DuoCircle include Site24x7 (since December 2017), Vercel (since August 2024) and WorkOS (since August 2026).
Does DuoCircle use Cloudflare?
Yes. runsonwhat found Cloudflare at DuoCircle through Cloudflare code on duocircle.com. Cloudflare is a CDN & Edge tool used by 728,612 companies runsonwhat tracks.
Which companies have a tech stack similar to DuoCircle's?
The companies with the stacks most like DuoCircle's are GameAnalytics, Expedient Enterprise Cloud, Vomo and FriendliAI, according to runsonwhat (November 2026). Each shares 2 to 13 tools with DuoCircle, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what DuoCircle uses?
runsonwhat reads public records only. Of the 21 tools at DuoCircle, 9 were found through code on duocircle.com, 5 through email records, 5 through subdomains that point at the vendor, 1 through website configuration files and 1 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and duocircle.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.