Castbox's tech stack
What does Castbox use?
Castbox (castbox.fm) uses at least 26 tools we can see from public records, including Zoho for sales, Zendesk for customer support, Amazon CloudFront for content delivery and Amazon SES for email delivery. Castbox went back to Anthropic in Nov 2026 and has used Amazon Web Services since Jun 2020, going by certificate records. Last checked .
- Company page
- Tools found
- 26
- Categories
- 14
- Oldest proven tool
- Jun 2020
- Changes seen
- 4
Castbox's stack, layer by layer
Of 26 tools, 9 came from website config, 6 from email records, 5 from website code and 6 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
4 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
3 tools, what the product is built with
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
15 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
3 tools, what the team runs on day to day
Email Delivery
Workspace
What changed at Castbox
Recent starts and stops
- Came backAnthropic
- Came backGoogle Search Console
- StoppedAnthropic
- StoppedGoogle Search Console
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Castbox tech stack FAQ
What tools does Castbox use?
As of November 2026, runsonwhat has found 26 tools at Castbox (castbox.fm) in public records. Edge & Hosting: Cloudflare, GoDaddy and Amazon Web Services. Application: React, Anthropic and imgix. Data & Observability: Google Analytics. Go-to-market: WordPress, Meta Pixel and Mailchimp. Company Ops: Google Workspace, Amazon SES and Mailchimp Transactional. Last checked November 8, 2026.
What cloud does Castbox run on?
Castbox uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services and code on castbox.fm, and Castbox has used it since at least June 2020. Amazon Web Services is used by 147,362 companies runsonwhat tracks.
What CRM does Castbox use?
Castbox uses Zoho for its CRM, according to runsonwhat (November 2026). runsonwhat found Zoho through email records that authorize Zoho and code on castbox.fm. Zoho is used by 65,056 companies runsonwhat tracks.
What email provider does Castbox use?
Castbox 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 castbox.fm. Google Workspace is used by 419,168 companies runsonwhat tracks.
What does Castbox use for customer support?
Castbox uses Zendesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on castbox.fm. Zendesk is used by 43,556 companies runsonwhat tracks.
What analytics tools does Castbox use?
Castbox uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on castbox.fm. Google Analytics is used by 903,824 companies runsonwhat tracks.
How long has Castbox used Amazon Web Services?
Castbox has used Amazon Web Services since at least June 2020, going by the first public certificate of the castbox.fm subdomain that points at Amazon Web Services.
Does Castbox use Cloudflare?
Yes. runsonwhat found Cloudflare at Castbox through DNS records that point at Cloudflare and code on castbox.fm. Cloudflare is a CDN & Edge tool used by 732,226 companies runsonwhat tracks.
Does Castbox use AI tools?
Yes. runsonwhat has found Anthropic at Castbox; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Castbox may use more AI tools than these.
Has Castbox changed tools recently?
Yes. On runsonwhat's rechecks, Castbox started using Anthropic and Google Search Console (latest on November 8, 2026) and stopped using Anthropic and Google Search Console (latest on October 31, 2026). A change counts only between two checks of castbox.fm done the same way.
How does runsonwhat know what Castbox uses?
runsonwhat reads public records only. Of the 26 tools at Castbox, 9 were found through website configuration files, 6 through email records, 5 through code on castbox.fm, 3 through DNS records and 3 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and castbox.fm 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.