runsonwhat

Celsa Steel UK's tech stack

What does Celsa Steel UK use?

Celsa Steel UK (celsauk.com) uses at least 13 tools we can see from public records, including Microsoft 365 for email and documents, WordPress for its website and GlobalSign for security. Last checked .

Industry
Consumer Goods
Size
10,000+ employees
Based in
Caerdydd, United Kingdom
Founded
2003
LinkedIn
Company page
Re-check liveVisit celsauk.com
Tools found
13
Categories
7
Layers
4 of 5
Last checked
Oct 2026

Celsa Steel UK'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

DNS

Application

3 tools, what the product is built with

Frontend

Media & UI

Go-to-market

2 tools, how they find and keep customers

Website & CMS

Company Ops

7 tools, what the team runs on day to day

Workspace

Dev Tools

Security & Compliance

Companies like Celsa Steel UK also use

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

Companies with a stack like Celsa Steel UK's

Ranked by shared tools, with rare tools counting more.

Celsa Steel UK tech stack FAQ

What tools does Celsa Steel UK use?

We've found 13 tools at Celsa Steel UK (celsauk.com). Edge & Hosting: Amazon Route 53. Application: jQuery, Vimeo and Font Awesome. Go-to-market: WordPress and Yoast SEO. Company Ops: Microsoft 365, Atlassian and GlobalSign. Last checked October 3, 2026.

What email provider does Celsa Steel UK use?

Celsa Steel UK uses Microsoft 365 for email and documents. We found Microsoft 365 through DNS verification records and email records.

What CMS does Celsa Steel UK use?

Celsa Steel UK uses WordPress and Yoast SEO for its website. We found WordPress through website code.

Does Celsa Steel UK use Microsoft 365?

Yes. We found Microsoft 365 at Celsa Steel UK through DNS verification records and email records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what Celsa Steel UK uses?

We read public traces only: Celsa Steel UK'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.