runsonwhat

Zeffy's tech stack

What does Zeffy use?

Zeffy (zeffy.com) uses at least 44 tools we can see from public records, including Vercel for hosting, Google Workspace for email and documents, HubSpot for sales and Forethought for customer support. Last checked .

“Zeffy is a 100% free all-in-one fundraising platform for nonprofits, with donation forms, event ticketing, memberships, raffles, auctions, an online store, peer-to-peer campaigns, in-person payments, email and a full donor CRM.”

Industry
Software
Size
11–50 employees
Based in
Montreal, Canada
Founded
2015
LinkedIn
Company page
Re-check liveVisit zeffy.com
Tools found
44
Categories
20
Layers
5 of 5
Changes seen
4

Zeffy'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

Hosting & Cloud

CDN & Edge

Application

8 tools, what the product is built with

Frontend

Auth & Identity

AI

Payments & Billing

Media & UI

Data & Observability

8 tools, what they measure and store

Monitoring

Analytics

Flags & Experiments

Go-to-market

19 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Sales & CRM

Support & Docs

Company Ops

6 tools, what the team runs on day to day

Workspace

Collaboration

Dev Tools

People & HR

Security & Compliance

What changed at Zeffy

Recent starts and stops

  1. Came backFly.io
  2. StartedMouseflow
  3. StoppedFly.io
  4. StartedSite24x7

Companies like Zeffy also use

Tools common among companies with a similar stack that we haven't found at Zeffy.

Companies with a stack like Zeffy's

Ranked by shared tools, with rare tools counting more.

More Software companies

Other Software companies we've checked.

Zeffy tech stack FAQ

What tools does Zeffy use?

As of October 2026, runsonwhat has found 44 tools at Zeffy (zeffy.com) in public records. Edge & Hosting: Cloudflare, Vercel and Fly.io. Application: jQuery, Google Fonts and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Google Workspace, Cookiebot and Cloudflare Turnstile. Last checked October 9, 2026.

What cloud does Zeffy run on?

Zeffy uses Vercel for hosting and cloud infrastructure, alongside Fly.io, according to runsonwhat (October 2026). runsonwhat found Vercel through a subdomain that points at Vercel and a DNS verification record. Vercel is used by 46,315 companies runsonwhat tracks.

What CRM does Zeffy use?

Zeffy uses HubSpot for its CRM, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on zeffy.com. HubSpot is used by 91,883 companies runsonwhat tracks.

What email provider does Zeffy use?

Zeffy 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 zeffy.com. Google Workspace is used by 396,635 companies runsonwhat tracks.

What does Zeffy use for customer support?

Zeffy uses Forethought for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Forethought through Forethought code on zeffy.com. Forethought is used by 39 companies runsonwhat tracks.

What payment provider does Zeffy use?

Zeffy uses PayPal for payments and billing, according to runsonwhat (October 2026). runsonwhat found PayPal through PayPal code on zeffy.com. PayPal is used by 33,764 companies runsonwhat tracks.

Does Zeffy use jQuery?

Yes. runsonwhat found jQuery at Zeffy through jQuery code on zeffy.com. jQuery is a Frontend tool used by 895,784 companies runsonwhat tracks.

Does Zeffy use AI tools?

Yes. runsonwhat has found Anthropic and OpenAI at Zeffy; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Zeffy may use more AI tools than these.

Has Zeffy changed tools recently?

Yes. On runsonwhat's rechecks, Zeffy started using Fly.io, Mouseflow and Site24x7 (latest on October 9, 2026) and stopped using Fly.io (latest on October 9, 2026). A change counts only between two checks of zeffy.com done the same way.

Which companies have a tech stack similar to Zeffy's?

The companies with the stacks most like Zeffy's are ActiveCampaign, BoxFort, Firstbase.io and NEW JERSEY EMS TASK FORCE, according to runsonwhat (October 2026). Each shares 12 to 21 tools with Zeffy, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Zeffy uses?

runsonwhat reads public records only. Of the 44 tools at Zeffy, 30 were found through code on zeffy.com, 9 through DNS records, 3 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and zeffy.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.