runsonwhat

RSSL's tech stack

What does RSSL use?

RSSL (rssl.com) uses at least 22 tools we can see from public records, including Microsoft Azure for hosting, Microsoft 365 for email and documents, Google Analytics for analytics and Umbraco for its website. Last checked .

Industry
Research
Size
201–1,000 employees
Based in
Reading, United Kingdom
Founded
1987
LinkedIn
Company page
Re-check liveVisit rssl.com
Tools found
22
Categories
15
Layers
5 of 5
Last checked
Oct 2026

RSSL'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

DNS

Application

3 tools, what the product is built with

Frontend

Media & UI

Data & Observability

5 tools, what they measure and store

Monitoring

Analytics

Go-to-market

5 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Company Ops

6 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Finance & Legal

Security & Compliance

Companies like RSSL also use

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

Companies with a stack like RSSL's

Ranked by shared tools, with rare tools counting more.

RSSL tech stack FAQ

What tools does RSSL use?

As of October 2026, runsonwhat has found 22 tools at RSSL (rssl.com) in public records. Edge & Hosting: Cloudflare, Microsoft Azure and CSC. Application: Google Fonts, YouTube and Tailwind CSS. Data & Observability: Google Analytics, Google Tag Manager and Hotjar. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, SendGrid and Proofpoint. Last checked October 4, 2026.

What cloud does RSSL run on?

RSSL uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure and code on rssl.com. Microsoft Azure is used by 44,498 companies runsonwhat tracks.

What email provider does RSSL use?

RSSL uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 694,625 companies runsonwhat tracks.

What analytics tools does RSSL use?

RSSL uses Google Analytics for analytics, alongside Google Tag Manager, Hotjar and Azure Monitor, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on rssl.com. Google Analytics is used by 832,556 companies runsonwhat tracks.

What is RSSL's website built with?

RSSL uses Umbraco for its website, according to runsonwhat (October 2026). runsonwhat found Umbraco through Umbraco code on rssl.com. Umbraco is used by 1,704 companies runsonwhat tracks.

What monitoring tools does RSSL use?

RSSL uses Microsoft Application Insights for monitoring, according to runsonwhat (October 2026). runsonwhat found Microsoft Application Insights through Microsoft Application Insights code on rssl.com. Microsoft Application Insights is used by 2,172 companies runsonwhat tracks.

Does RSSL use Google Fonts?

Yes. runsonwhat found Google Fonts at RSSL through Google Fonts code on rssl.com. Google Fonts is a Media & UI tool used by 775,648 companies runsonwhat tracks.

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

The companies with the stacks most like RSSL's are Libra Revalidatie & Audiologie, TP, Quintet Private Bank and Mitsubishi HC Capital UK, according to runsonwhat (October 2026). Each shares 8 to 15 tools with RSSL, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what RSSL uses?

runsonwhat reads public records only. Of the 22 tools at RSSL, 14 were found through code on rssl.com, 4 through DNS records, 3 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and rssl.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.