SEO's tech stack
What does SEO use?
SEO (seo.lu) uses at least 12 tools we can see from public records, including Microsoft Azure for hosting, Microsoft 365 for email and documents, WordPress for its website and Cloudflare for content delivery. Last checked .
- Based in
- Luxembourg
- Founded
- 1951
- Company page
- Tools found
- 12
- Categories
- 6
- Layers
- 4 of 5
- Last checked
- Oct 2026
SEO'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
5 tools, what the product is built with
Go-to-market
2 tools, how they find and keep customers
Website & CMS
Company Ops
3 tools, what the team runs on day to day
SEO tech stack FAQ
What tools does SEO use?
As of October 2026, runsonwhat has found 12 tools at SEO (seo.lu) in public records. Edge & Hosting: Cloudflare and Microsoft Azure. Application: jQuery, Google Fonts and Vimeo. Go-to-market: WordPress and Yoast SEO. Company Ops: Microsoft 365, Apple Business and Exclaimer. Last checked October 20, 2026.
What cloud does SEO run on?
SEO uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Microsoft Azure through DNS records that point at Microsoft Azure and code on seo.lu. Microsoft Azure is used by 46,800 companies runsonwhat tracks.
What email provider does SEO use?
SEO uses Microsoft 365 for email and office software, alongside Apple Business and Exclaimer, 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 711,310 companies runsonwhat tracks.
What is SEO's website built with?
SEO uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on seo.lu. WordPress is used by 597,962 companies runsonwhat tracks.
Does SEO use jQuery?
Yes. runsonwhat found jQuery at SEO through jQuery code on seo.lu. jQuery is a Frontend tool used by 916,754 companies runsonwhat tracks.
How does runsonwhat know what SEO uses?
runsonwhat reads public records only. Of the 12 tools at SEO, 8 were found through code on seo.lu, 3 through DNS records and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and seo.lu 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.