runsonwhat

Chainlink's tech stack

What does Chainlink use?

Chainlink (chain.link) uses at least 35 tools we can see from public records, including Vercel for hosting, Microsoft 365 for email and documents, HubSpot for sales and Zendesk for customer support. Last checked .

“Chainlink is the backbone of blockchain—a global standard connecting blockchains to real-world data, other chains, and public and enterprise systems—working with national governments and widely adopted by major financial institutions and top DeFi protocols.”

LinkedIn
Company page
Re-check liveVisit chain.link
Tools found
35
Categories
17
Oldest proven tool
Apr 2022
Last checked
Oct 2026

Chainlink'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

2 tools, where the bytes are served from

Hosting & Cloud

CDN & Edge

Application

7 tools, what the product is built with

Frontend

Auth & Identity

AI

Media & UI

Data & Observability

3 tools, what they measure and store

Analytics

Flags & Experiments

Go-to-market

12 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Sales & CRM

Support & Docs

Company Ops

11 tools, what the team runs on day to day

Email Delivery

Workspace

Dev Tools

Security & Compliance

What changed at Chainlink

Using since

Dates come from the first certificate of the subdomain that points at the tool.

  1. HubSpot
  2. HubSpot CMS
  3. Zendesk
  4. Auth0

Companies like Chainlink also use

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

Companies with a stack like Chainlink's

Ranked by shared tools, with rare tools counting more.

Chainlink tech stack FAQ

What tools does Chainlink use?

As of October 2026, runsonwhat has found 35 tools at Chainlink (chain.link) in public records. Edge & Hosting: Cloudflare and Vercel. Application: jQuery, GSAP and Adobe Fonts. Data & Observability: Google Analytics, Google Tag Manager and Intellimize. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 20, 2026.

What cloud does Chainlink run on?

Chainlink uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a DNS verification record for Vercel. Vercel is used by 49,657 companies runsonwhat tracks.

What CRM does Chainlink use?

Chainlink uses HubSpot for its CRM, alongside Salesforce, according to runsonwhat (October 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and email records, and Chainlink has used it since at least April 2022. HubSpot is used by 95,203 companies runsonwhat tracks.

What email provider does Chainlink use?

Chainlink uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 715,935 companies runsonwhat tracks.

What does Chainlink use for customer support?

Chainlink uses Zendesk for customer support and documentation, alongside Discord, according to runsonwhat (October 2026). runsonwhat found Zendesk through a subdomain that points at Zendesk and email records, and Chainlink has used it since at least March 2025. Zendesk is used by 42,369 companies runsonwhat tracks.

What analytics tools does Chainlink use?

Chainlink uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on chain.link. Google Analytics is used by 894,142 companies runsonwhat tracks.

How long has Chainlink used HubSpot?

Chainlink has used HubSpot since at least April 2022, going by the first public certificate of the chain.link subdomain that points at HubSpot. Other long-running tools at Chainlink include HubSpot CMS (since April 2022), Zendesk (since March 2025) and Auth0 (since October 2025).

Does Chainlink use jQuery?

Yes. runsonwhat found jQuery at Chainlink through jQuery code on chain.link. jQuery is a Frontend tool used by 923,296 companies runsonwhat tracks.

Does Chainlink use AI tools?

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

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

The companies with the stacks most like Chainlink's are General Catalyst, Venn, Veritystream By Healthstream and RePro Stream, according to runsonwhat (October 2026). Each shares 10 to 14 tools with Chainlink, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Chainlink uses?

runsonwhat reads public records only. Of the 35 tools at Chainlink, 14 were found through code on chain.link, 11 through DNS records, 5 through subdomains that point at the vendor, 4 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and chain.link 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.