Willis Re's tech stack
What does Willis Re use?
Willis Re (willisre.com) uses at least 20 tools we can see from public records, including Fly.io for hosting, Microsoft 365 for email and documents, Google Analytics for analytics and WordPress for its website. Last checked .
- Industry
- Insurance
- Size
- 1,001–5,000 employees
- Based in
- London, United Kingdom
- Founded
- 1828
- Company page
- Tools found
- 20
- Categories
- 11
- Layers
- 5 of 5
- Last checked
- Nov 2026
Willis Re'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
3 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
4 tools, what the product is built with
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
2 tools, how they find and keep customers
Website & CMS
Company Ops
10 tools, what the team runs on day to day
Email Delivery
Workspace
Security & Compliance
Willis Re tech stack FAQ
What tools does Willis Re use?
As of November 2026, runsonwhat has found 20 tools at Willis Re (willisre.com) in public records. Edge & Hosting: Cloudflare, Fastly and Fly.io. Application: jQuery, Google Fonts and Vimeo. Data & Observability: Google Analytics. Go-to-market: WordPress and Rank Math. Company Ops: Microsoft 365, SendGrid and Apple Business. Last checked November 2, 2026.
What cloud does Willis Re run on?
Willis Re uses Fly.io for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Fly.io through Fly.io code on willisre.com. Fly.io is used by 5,469 companies runsonwhat tracks.
What email provider does Willis Re use?
Willis Re uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 719,803 companies runsonwhat tracks.
What analytics tools does Willis Re use?
Willis Re uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on willisre.com. Google Analytics is used by 906,306 companies runsonwhat tracks.
What is Willis Re's website built with?
Willis Re uses WordPress for its website, alongside Rank Math, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on willisre.com. WordPress is used by 607,153 companies runsonwhat tracks.
Does Willis Re use jQuery?
Yes. runsonwhat found jQuery at Willis Re through jQuery code on willisre.com. jQuery is a Frontend tool used by 930,150 companies runsonwhat tracks.
Does Willis Re use AI tools?
Yes. runsonwhat has found Anthropic at Willis Re; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Willis Re may use more AI tools than these.
How does runsonwhat know what Willis Re uses?
runsonwhat reads public records only. Of the 20 tools at Willis Re, 10 were found through code on willisre.com, 7 through DNS records and 3 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and willisre.com 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.