runsonwhat

Prelim's tech stack

What does Prelim use?

Prelim (prelim.io) uses at least 10 tools we can see from public records, including Railway for hosting, Resend for email delivery, Microsoft 365 for email and documents and Google Analytics for analytics. Last checked .

“Prelim is the enterprise talent assessment platform for defensible hiring — measuring leadership, technical, and non-IT candidates on one scoring model.”

Industry
IT Services
Size
11–50 employees
Based in
Allen, United States
LinkedIn
Company page
Re-check liveVisit prelim.io
Tools found
10
Categories
10
Layers
5 of 5
Last checked
Nov 2026

Prelim's stack, layer by layer

Of 10 tools, 4 came from website code, 2 from email records, 1 from DNS verification records and 3 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

2 tools, where the bytes are served from

Hosting & Cloud

DNS

Application

3 tools, what the product is built with

Frontend

Backend & Database

AI

Data & Observability

1 tool, what they measure and store

Analytics

Go-to-market

1 tool, how they find and keep customers

Marketing

Company Ops

3 tools, what the team runs on day to day

Email Delivery

Workspace

Security & Compliance

Companies like Prelim also use

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

Companies with a stack like Prelim's

Ranked by shared tools, with rare tools counting more.

More IT Services companies

Other IT Services companies we've checked.

Prelim tech stack FAQ

What tools does Prelim use?

As of November 2026, runsonwhat has found 10 tools at Prelim (prelim.io) in public records. Edge & Hosting: Namecheap and Railway. Application: Next.js and Firebase. Data & Observability: Google Analytics. Company Ops: Microsoft 365, reCAPTCHA and Resend. Last checked November 13, 2026.

What cloud does Prelim run on?

Prelim uses Railway for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Railway through a subdomain that points at Railway and code on prelim.io. Railway is used by 2,757 companies runsonwhat tracks.

What email provider does Prelim use?

Prelim uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 739,097 companies runsonwhat tracks.

What analytics tools does Prelim use?

Prelim uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on prelim.io. Google Analytics is used by 904,953 companies runsonwhat tracks.

Does Prelim use reCAPTCHA?

Yes. runsonwhat found reCAPTCHA at Prelim through reCAPTCHA code on prelim.io. reCAPTCHA is a Security & Compliance tool used by 291,541 companies runsonwhat tracks.

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

The companies with the stacks most like Prelim's are Dusky International (Pvt), Mypro Appz - App Development Company, Royalty Roofing and TKV Advogados Associados, according to runsonwhat (November 2026). Each shares 2 to 5 tools with Prelim, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Prelim uses?

runsonwhat reads public records only. Of the 10 tools at Prelim, 4 were found through code on prelim.io, 2 through DNS records, 2 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 prelim.io 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.