runsonwhat

Defsys's tech stack

What does Defsys use?

Defsys (defsys.com.au) uses at least 11 tools we can see from public records, including Microsoft 365 for email and documents, Autotask PSA for customer support, WordPress for its website and Brevo for marketing. Last checked .

Industry
Internet
Size
11–50 employees
Based in
Campbelltown, Australia
Founded
2009
LinkedIn
Company page
Re-check liveVisit defsys.com.au
Tools found
11
Categories
8
Layers
4 of 5
Last checked
Oct 2026

Defsys'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

1 tool, what the product is built with

Frontend

Go-to-market

5 tools, how they find and keep customers

Website & CMS

Marketing

Support & Docs

Company Ops

4 tools, what the team runs on day to day

Email Delivery

Workspace

Security & Compliance

Companies like Defsys also use

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

Companies with a stack like Defsys's

Ranked by shared tools, with rare tools counting more.

More Internet companies

Other Internet companies we've checked.

Defsys tech stack FAQ

What tools does Defsys use?

As of October 2026, runsonwhat has found 11 tools at Defsys (defsys.com.au) in public records. Edge & Hosting: Cloudflare. Application: jQuery. Go-to-market: WordPress, Yoast SEO and Brevo. Company Ops: Microsoft 365, reCAPTCHA and Apple Business. Last checked October 29, 2026.

What email provider does Defsys use?

Defsys uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 716,411 companies runsonwhat tracks.

What does Defsys use for customer support?

Defsys uses Autotask PSA for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Autotask PSA through email records that authorize Autotask PSA. Autotask PSA is used by 2,603 companies runsonwhat tracks.

What is Defsys's website built with?

Defsys uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on defsys.com.au. WordPress is used by 601,985 companies runsonwhat tracks.

What marketing software does Defsys use?

Defsys uses Brevo for marketing, according to runsonwhat (October 2026). runsonwhat found Brevo through a DNS verification record for Brevo and email records. Brevo is used by 80,982 companies runsonwhat tracks.

Does Defsys use jQuery?

Yes. runsonwhat found jQuery at Defsys through jQuery code on defsys.com.au. jQuery is a Frontend tool used by 922,940 companies runsonwhat tracks.

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

The companies with the stacks most like Defsys' are Next Connex Is Now Wifinity, Technology Resource Advisors, Constant IT and MILNSBRIDGE IT VOICE & DATA, according to runsonwhat (October 2026). Each shares 4 to 8 tools with Defsys, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Defsys uses?

runsonwhat reads public records only. Of the 11 tools at Defsys, 5 were found through DNS records, 4 through code on defsys.com.au and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and defsys.com.au 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.