---
title: "Testi@ - Live Email Testing with (ESP) – Chrome extension stats, history and permissions"
description: "607 users, rated 4.12 by 8 people. Version 0.67.6, updated 2025-09-24. Requests 21 permissions."
url: "https://extensiontracker.com/extension/hbgeikbbpfjgcicclnjcokjapbgkkfkd"
---

# Testi@ - Live Email Testing with (ESP)

Live in the Chrome Web Store.

- Users: 607
- Rating: 4.12 from 8 ratings
- Last checked: 2026-09-27 02:10 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #30,921 of 264,700 live extensions
- Rank in Developer Tools: #2,704 of 27,615

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Email Testing Email preview outlook test

- Extension ID: `hbgeikbbpfjgcicclnjcokjapbgkkfkd`
- Developer: [None](https://extensiontracker.com/developer/uabd1ee7d316b98f3f464c2768ac14599)
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2017-11-09
- Last updated: 2025-09-24
- Version: `0.67.6`
- Size: 60.34 KiB
- Minimum Chrome: 88
- Languages (1): English
- Website: `https://testi.at/`
- Support page: `https://testi.at/WebExtension`
- Chrome Web Store: <https://chromewebstore.google.com/detail/testi-live-email-testing/hbgeikbbpfjgcicclnjcokjapbgkkfkd>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=hbgeikbbpfjgcicclnjcokjapbgkkfkd>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 607 | 4.12 | 8 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `<all_urls>`: Every website
- `*://*.xip.io/*`: xip.io and its subdomains
- `http://*/*`: Every website
- `http://127.0.0.1/*`: 127.0.0.1
- `http://localhost/*`: localhost
- `https://*.admin.mailchimp.com/campaigns/wizard/neapolitan?id=*`: admin.mailchimp.com and its subdomains
- `https://*.admin.mailchimp.com/templates/edit?id=*`: admin.mailchimp.com and its subdomains
- `https://*.createsend.com/*`: createsend.com and its subdomains
- `https://*/*`: Every website
- `https://beefree.io/editor*`: beefree.io
- `https://mjml.io/try-it-live*`: mjml.io
- `https://pro.beefree.io/*/edit`: pro.beefree.io
- `https://sendgrid.com/marketing_campaigns/ui/campaigns/*/edit`: sendgrid.com
- `https://testi.at/*`: testi.at
- `https://www.campaignmonitor.com/*`: www.campaignmonitor.com
- `https://www.testi.at/*`: www.testi.at

### Sites where it runs scripts

- `*://*.xip.io/*`: xip.io and its subdomains
- `http://*/*`: Every website
- `http://127.0.0.1/*`: 127.0.0.1
- `http://localhost/*`: localhost
- `https://*.admin.mailchimp.com/campaigns/wizard/neapolitan?id=*`: admin.mailchimp.com and its subdomains
- `https://*.admin.mailchimp.com/templates/edit?id=*`: admin.mailchimp.com and its subdomains
- `https://*.createsend.com/campaigns/*`: createsend.com and its subdomains
- `https://*/*`: Every website
- `https://app.getbee.io/*/index.html`: app.getbee.io
- `https://beefree.io/editor*`: beefree.io
- `https://mjml.io/try-it-live*`: mjml.io
- `https://pro.beefree.io/*/edit`: pro.beefree.io
- `https://sendgrid.com/marketing_campaigns/ui/campaigns/*/edit`: sendgrid.com
- `https://www.campaignmonitor.com/*`: www.campaignmonitor.com

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `declarativeNetRequest`: Block or change network requests, using rules
- `declarativeNetRequestFeedback`: See which of its network rules matched
- `declarativeNetRequestWithHostAccess`: Block or change network requests on the sites it can reach
- `tabs`: Read the addresses and titles of your tabs

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-27 02:10 UTC; next check around 2026-10-19.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “Testi@ - Live Email Testing with (ESP)” (hbgeikbbpfjgcicclnjcokjapbgkkfkd). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/hbgeikbbpfjgcicclnjcokjapbgkkfkd. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_hbgeikbbpfjgcicclnjcokjapbgkkfkd,
  title   = {Testi@ - Live Email Testing with (ESP) (hbgeikbbpfjgcicclnjcokjapbgkkfkd)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/hbgeikbbpfjgcicclnjcokjapbgkkfkd},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/hbgeikbbpfjgcicclnjcokjapbgkkfkd>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.