runsonwhat

Ecco's tech stack

What does Ecco use?

Ecco (harpercollins.com) uses at least 26 tools we can see from public records, including Microsoft 365 for email and documents, Shopify for its website, Ahrefs for marketing and Cloudflare for content delivery. Last checked .

Based in
United States
Founded
1971
Re-check liveVisit harpercollins.com
Tools found
26
Categories
11
Layers
4 of 5
Last checked
Oct 2026

Ecco'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

3 tools, what the product is built with

AI

Media & UI

Go-to-market

4 tools, how they find and keep customers

Website & CMS

Marketing

Company Ops

18 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Dev Tools

Finance & Legal

Security & Compliance

Companies like Ecco also use

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

Companies with a stack like Ecco's

Ranked by shared tools, with rare tools counting more.

Ecco tech stack FAQ

What tools does Ecco use?

We've found 26 tools at Ecco (harpercollins.com). Edge & Hosting: Cloudflare. Application: OpenAI and Extensis. Go-to-market: Shopify, Ahrefs and Attentive. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 3, 2026.

What email provider does Ecco use?

Ecco uses Microsoft 365 and Google Workspace for email and documents. We found Microsoft 365 through email records.

What CMS does Ecco use?

Ecco uses Shopify for its website. We found Shopify through custom domain, DNS verification records and DNS records.

What marketing software does Ecco use?

Ecco uses Ahrefs and Attentive for marketing. We found Ahrefs through DNS verification records.

Does Ecco use Microsoft 365?

Yes. We found Microsoft 365 at Ecco through email records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what Ecco uses?

We read public traces only: Ecco's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website 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.