runsonwhat

eSIM Guide's tech stack

What does eSIM Guide use?

eSIM Guide (esimguide.com) uses at least 8 tools we can see from public records, including Microsoft 365 for email and documents, PostHog for analytics, web-vitals for monitoring and Cloudflare for content delivery. Last checked .

Re-check liveVisit esimguide.com
Tools found
8
Categories
8
Layers
5 of 5
Last checked
Oct 2026

eSIM Guide'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

AI

Data & Observability

2 tools, what they measure and store

Monitoring

Analytics

Go-to-market

1 tool, how they find and keep customers

Marketing

Company Ops

2 tools, what the team runs on day to day

Email Delivery

Workspace

Companies like eSIM Guide also use

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

Companies with a stack like eSIM Guide's

Ranked by shared tools, with rare tools counting more.

eSIM Guide tech stack FAQ

What tools does eSIM Guide use?

We've found 8 tools at eSIM Guide (esimguide.com). Edge & Hosting: Cloudflare. Application: Next.js. Data & Observability: web-vitals and PostHog. Company Ops: Microsoft 365 and Resend. Last checked October 2, 2026.

What email provider does eSIM Guide use?

eSIM Guide uses Microsoft 365 for email and documents. We found Microsoft 365 through DNS verification records.

What analytics tools does eSIM Guide use?

eSIM Guide uses PostHog for analytics. We found PostHog through website code.

Does eSIM Guide use Microsoft 365?

Yes. We found Microsoft 365 at eSIM Guide through DNS verification records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what eSIM Guide uses?

We read public traces only: eSIM Guide'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.