Halo eSIM Ltd's tech stack
What does Halo eSIM Ltd use?
Halo eSIM Ltd (haloesim.com) uses at least 12 tools we can see from public records, including Google Workspace for email and documents, PostHog for analytics, Cloudflare for content delivery and Postmark for email delivery. Last checked .
“Travel eSIMs for wherever you're headed. Reliable data, transparent pricing, no hidden fees.”
- Industry
- Esim
- Based in
- London, United Kingdom
- Founded
- 2023
- Tools found
- 12
- Categories
- 9
- Layers
- 5 of 5
- Last checked
- Oct 2026
Halo eSIM Ltd'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
2 tools, what the product is built with
Frontend
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
2 tools, how they find and keep customers
Marketing
Ads & Pixels
Company Ops
6 tools, what the team runs on day to day
Email Delivery
Workspace
Security & Compliance
Halo eSIM Ltd tech stack FAQ
What tools does Halo eSIM use?
As of October 2026, runsonwhat has found 12 tools at Halo eSIM (haloesim.com) in public records. Edge & Hosting: Cloudflare. Application: Astro. Data & Observability: PostHog. Go-to-market: Meta Pixel. Company Ops: Google Workspace, Let's Encrypt and Sectigo. Last checked October 4, 2026.
What email provider does Halo eSIM use?
Halo eSIM uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 392,640 companies runsonwhat tracks.
What analytics tools does Halo eSIM use?
Halo eSIM uses PostHog for analytics, according to runsonwhat (October 2026). runsonwhat found PostHog through PostHog code on haloesim.com. PostHog is used by 8,782 companies runsonwhat tracks.
Does Halo eSIM use Cloudflare?
Yes. runsonwhat found Cloudflare at Halo eSIM through DNS records that point at Cloudflare and code on haloesim.com. Cloudflare is a CDN & Edge tool used by 673,007 companies runsonwhat tracks.
How does runsonwhat know what Halo eSIM uses?
runsonwhat reads public records only. Of the 12 tools at Halo eSIM, 7 were found through DNS records, 2 through email records, 2 through code on haloesim.com and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and haloesim.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.