Feather's tech stack
What does Feather use?
Feather (askfeather.ai) uses at least 12 tools we can see from public records, including Google Cloud for hosting, Google Workspace for email and documents, RudderStack for analytics and Ahrefs for marketing. Last checked .
“Professional-Class AI Tax Assistant for CPAs, EAs, and tax attorneys. Feather delivers instant, audit-ready answers backed by tax code citations you can verify against primary sources.”
- Industry
- Software
- Size
- 1–10 employees
- Based in
- San Francisco, United States
- Founded
- 2026
- Company page
- Tools found
- 12
- Categories
- 9
- Layers
- 5 of 5
- Last checked
- Oct 2026
Feather'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
Hosting & Cloud
Application
4 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Monitoring
Analytics
Go-to-market
4 tools, how they find and keep customers
Company Ops
1 tool, what the team runs on day to day
Workspace
Companies like Feather also use
Tools common among companies with a similar stack that we haven't found at Feather.
Companies with a stack like Feather's
Ranked by shared tools, with rare tools counting more.
Comfy DeployEngineering, Product and Design · 1–10 people5in common
MochiContent · 1–10 people4in common
GennyApparel & Fashion · 1–10 people2in common
TherifyHuman Resources · 1–10 people3in common
MeticulateB2B · 1–10 people3in common
FlowgladB2B · 1–10 people3in common
Ocular AIB2B · 1–10 people5in common
Capveon, Inc.Government · 1–10 people5in common
More Software companies
Other Software companies we've checked.
Feather tech stack FAQ
What tools does Feather use?
As of October 2026, runsonwhat has found 12 tools at Feather (askfeather.ai) in public records. Edge & Hosting: Google Cloud. Application: Next.js, Lottie and Clerk. Data & Observability: Bugsnag and RudderStack. Go-to-market: Ahrefs, LinkedIn and Kit. Company Ops: Google Workspace. Last checked October 20, 2026.
What cloud does Feather run on?
Feather uses Google Cloud for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Google Cloud through DNS records that point at Google Cloud and code on askfeather.ai. Google Cloud is used by 76,131 companies runsonwhat tracks.
What email provider does Feather use?
Feather uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 405,358 companies runsonwhat tracks.
What analytics tools does Feather use?
Feather uses RudderStack for analytics, according to runsonwhat (October 2026). runsonwhat found RudderStack through RudderStack code on askfeather.ai. RudderStack is used by 2,620 companies runsonwhat tracks.
What marketing software does Feather use?
Feather uses Ahrefs for marketing, alongside LinkedIn and Kit, according to runsonwhat (October 2026). runsonwhat found Ahrefs through Ahrefs code on askfeather.ai. Ahrefs is used by 23,756 companies runsonwhat tracks.
What does Feather use for login and identity?
Feather uses Clerk for sign-in and identity, according to runsonwhat (October 2026). runsonwhat found Clerk through Clerk code on askfeather.ai. Clerk is used by 1,326 companies runsonwhat tracks.
Does Feather use Next.js?
Yes. runsonwhat found Next.js at Feather through Next.js code on askfeather.ai. Next.js is a Frontend tool used by 66,909 companies runsonwhat tracks.
Which companies have a tech stack similar to Feather's?
The companies with the stacks most like Feather's are Comfy Deploy, Mochi, Genny and Therify, according to runsonwhat (October 2026). Each shares 2 to 5 tools with Feather, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Feather uses?
runsonwhat reads public records only. Of the 12 tools at Feather, 7 were found through code on askfeather.ai, 3 through DNS records, 1 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and askfeather.ai 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.