Ext / Newswire's tech stack
What does Ext / Newswire use?
Ext / Newswire (ext.com) uses at least 13 tools we can see from public records, including Google Workspace for email and documents, Substack for its website, Cloudflare for content delivery and Amazon SES for email delivery. Last checked .
- Industry
- Internet
- Size
- 11–50 employees
- Based in
- Menlo Park, United States
- Company page
- Tools found
- 13
- Categories
- 9
- Layers
- 4 of 5
- Last checked
- Oct 2026
Ext / Newswire'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
CDN & Edge
Application
4 tools, what the product is built with
Go-to-market
2 tools, how they find and keep customers
Website & CMS
Marketing
Company Ops
6 tools, what the team runs on day to day
Email Delivery
Workspace
Security & Compliance
Companies like Ext / Newswire also use
Tools common among companies with a similar stack that we haven't found at Ext / Newswire.
Companies with a stack like Ext / Newswire's
Ranked by shared tools, with rare tools counting more.
EdennInternet · 11–50 people2in common
MemberUpInternet · 11–50 people10in common
TarsInternet · 51–200 people4in common
Publimedios MéxicoMarketing and Advertising · 11–50 people4in common
Indiashowrooms.comReal Estate · 11–50 people3in common
Expert Virtual Agent SolutionsStaffing and Recruiting · 11–50 people2in common
yhangryFood and Beverage · 11–50 people5in common
AWC CommunicationsTelecommunications · 11–50 people3in common
More Internet companies
Other Internet companies we've checked.
Ext / Newswire tech stack FAQ
What tools does Ext / Newswire use?
As of October 2026, runsonwhat has found 13 tools at Ext / Newswire (ext.com) in public records. Edge & Hosting: Cloudflare. Application: YouTube, React and Tailwind CSS. Go-to-market: Substack. Company Ops: Google Workspace, Amazon SES and Let's Encrypt. Last checked October 23, 2026.
What email provider does Ext / Newswire use?
Ext / Newswire uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on ext.com. Google Workspace is used by 402,269 companies runsonwhat tracks.
What is Ext / Newswire's website built with?
Ext / Newswire uses Substack for its website, according to runsonwhat (October 2026). runsonwhat found Substack through Substack code on ext.com. Substack is used by 395 companies runsonwhat tracks.
Does Ext / Newswire use Cloudflare?
Yes. runsonwhat found Cloudflare at Ext / Newswire through DNS records that point at Cloudflare and code on ext.com. Cloudflare is a CDN & Edge tool used by 702,131 companies runsonwhat tracks.
Which companies have a tech stack similar to Ext / Newswire's?
The companies with the stacks most like Ext / Newswire's are Edenn, MemberUp, Tars and Publimedios México, according to runsonwhat (October 2026). Each shares 2 to 10 tools with Ext / Newswire, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Ext / Newswire uses?
runsonwhat reads public records only. Of the 13 tools at Ext / Newswire, 6 were found through DNS records, 5 through code on ext.com and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and ext.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.