Semaphore's tech stack
What does Semaphore use?
Semaphore (semaphoreci.com) uses at least 25 tools we can see from public records, including Kinsta for hosting, Google Workspace for email and documents, Zendesk for customer support and Google Analytics for analytics. Last checked .
- Company page
- Tools found
- 25
- Categories
- 15
- Oldest proven tool
- Mar 2019
- Last checked
- Nov 2026
Semaphore'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
4 tools, what the product is built with
Data & Observability
4 tools, what they measure and store
Go-to-market
8 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Support & Docs
Company Ops
6 tools, what the team runs on day to day
Email Delivery
Workspace
Security & Compliance
What changed at Semaphore
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Semaphore tech stack FAQ
What tools does Semaphore use?
As of November 2026, runsonwhat has found 25 tools at Semaphore (semaphoreci.com) in public records. Edge & Hosting: Cloudflare, Amazon Route 53 and Kinsta. Application: jQuery, Google Fonts and YouTube. Data & Observability: Google Analytics, Google Tag Manager and PostHog. Go-to-market: WordPress, Google Ads and Yoast SEO. Company Ops: Google Workspace, SendGrid and Let's Encrypt. Last checked November 1, 2026.
What cloud does Semaphore run on?
Semaphore uses Kinsta for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Kinsta through Kinsta code on semaphoreci.com. Kinsta is used by 13,126 companies runsonwhat tracks.
What email provider does Semaphore use?
Semaphore uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 411,650 companies runsonwhat tracks.
What does Semaphore use for customer support?
Semaphore uses Zendesk for customer support and documentation, alongside Help Scout, according to runsonwhat (November 2026). runsonwhat found Zendesk through email records that authorize Zendesk. Zendesk is used by 42,888 companies runsonwhat tracks.
What analytics tools does Semaphore use?
Semaphore uses Google Analytics for analytics, alongside Google Tag Manager and PostHog, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on semaphoreci.com. Google Analytics is used by 906,160 companies runsonwhat tracks.
What is Semaphore's website built with?
Semaphore uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on semaphoreci.com. WordPress is used by 607,127 companies runsonwhat tracks.
How long has Semaphore used Atlassian Statuspage?
Semaphore has used Atlassian Statuspage since at least March 2019, going by the first public certificate of the semaphoreci.com subdomain that points at Atlassian Statuspage.
Does Semaphore use jQuery?
Yes. runsonwhat found jQuery at Semaphore through jQuery code on semaphoreci.com. jQuery is a Frontend tool used by 929,980 companies runsonwhat tracks.
Which companies have a tech stack similar to Semaphore's?
The companies with the stacks most like Semaphore's are Lago, KODYS SOLUTIONS s. r. o., Rhomberg Sersa Rail Group | Global and Bruce & Butler, according to runsonwhat (November 2026). Each shares 5 to 10 tools with Semaphore, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Semaphore uses?
runsonwhat reads public records only. Of the 25 tools at Semaphore, 11 were found through code on semaphoreci.com, 7 through DNS records, 5 through email records, 1 through website configuration files and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and semaphoreci.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.