---
title: "Domain Age Checker | Site Age Checker – Chrome extension stats, history and permissions"
description: "10,000 users, rated 2.41 by 29 people. Version 1.06, updated 2024-01-28. Requests 3 permissions."
url: "https://extensiontracker.com/extension/cfklmhljnpiobjgmnllgjioekopgpboo"
---

# Domain Age Checker \| Site Age Checker

Live in the Chrome Web Store.

- Users: 10,000
- Rating: 2.41 from 29 ratings
- Last checked: 2026-09-26 23:02 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #5,164 of 264,703 live extensions
- Rank in Workflow & Planning: #1,705 of 44,474

## The listing

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

Summary from the listing:

> Domain age checker is a whois tool / extension developed by toolpyramid.com for checking any domain age

- Extension ID: `cfklmhljnpiobjgmnllgjioekopgpboo`
- Developer: [SKJCORP](https://extensiontracker.com/developer/u48fa80bd05e4dcc95fcbe1c4c9a076fc)
- Trader status: Not declared a trader under EU law
- Category: [Productivity › Workflow & Planning](https://extensiontracker.com/category/productivity/workflow)
- First published: 2020-06-11
- Last updated: 2024-01-28
- Version: `1.06`
- Size: 144 KiB
- Minimum Chrome: 88
- Languages (1): English
- Website: `toolpyramid.com`
- Support page: `https://toolpyramid.com/webmanagement/domain_age_checker`
- Chrome Web Store: <https://chromewebstore.google.com/detail/domain-age-checker-site-a/cfklmhljnpiobjgmnllgjioekopgpboo>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fcfklmhljnpiobjgmnllgjioekopgpboo>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 10,000 | 2.41 | 29 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## What it can access

From the extension's manifest, in plain language.

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `declarativeContent`: Act on what a page contains, without reading it
- `storage`: Save settings and data in your browser

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-09-26 23:02 UTC; next check around 2026-10-02.

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

## Cite this page

Extension Tracker. “Domain Age Checker \| Site Age Checker” (cfklmhljnpiobjgmnllgjioekopgpboo). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/cfklmhljnpiobjgmnllgjioekopgpboo. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_cfklmhljnpiobjgmnllgjioekopgpboo,
  title   = {Domain Age Checker | Site Age Checker (cfklmhljnpiobjgmnllgjioekopgpboo)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/cfklmhljnpiobjgmnllgjioekopgpboo},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/cfklmhljnpiobjgmnllgjioekopgpboo>. 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`.