---
title: "Lines Checker: ads.txt/app-ads.txt/sellers.json – Chrome extension stats, history and permissions"
description: "3 users, no ratings yet. Version 7.6.3, updated 2026-11-01. Requests 5 permissions."
url: "https://extensiontracker.com/extension/gekfhoohhgameebogjaaocnbbdildejb"
---

# Lines Checker: ads.txt/app-ads.txt/sellers.json

Live in the Chrome Web Store.

- Users: 3
- Rating: no ratings yet
- Last checked: 2026-11-02 05:42 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #233,153 of 292,125 live extensions
- Rank in Tools: #91,000 of 115,633

## The listing

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

Summary from the listing:

> Check ads.txt and app-ads.txt, find errors and duplicates, and verify seller IDs against sellers.json directly in Chrome

- Extension ID: `gekfhoohhgameebogjaaocnbbdildejb`
- Developer: [OstinUA](https://extensiontracker.com/developer/u95260f27874296b18a47d2a9902bc52e)
- Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2026-10-23
- Last updated: 2026-11-01
- Version: `7.6.3`
- Size: 2.2 MiB
- Minimum Chrome: 88
- Languages (1): English
- Support page: `https://devs-in-exile.pages.dev/support`
- Chrome Web Store: <https://chromewebstore.google.com/detail/lines-checker-adstxtapp-a/gekfhoohhgameebogjaaocnbbdildejb>
- View its code or download CRX: <https://crxpeek.com/extension/gekfhoohhgameebogjaaocnbbdildejb>
- Search Google for the ID: <https://www.google.com/search?q=%22gekfhoohhgameebogjaaocnbbdildejb%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-02 | 3 | – | – |
| 2026-10-30 | 3 | – | – |
| 2026-10-24 | – | – | – |

## What changed

Every change found on a check, newest first.

- 2026-11-04: Now trusted by Enhanced Safe Browsing.
- 2026-11-02: New version `7.6.3`, replacing `7.6.1`.

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-10-24.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## 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

- `http://*/*`: Every website
- `https://*/*`: Every website

### Sites where it runs scripts

- `*://*/*/ads.txt*`: Every website
- `*://*/*/app-ads.txt*`: Every website
- `*://*/ads.txt*`: Every website
- `*://*/app-ads.txt*`: Every website

### Browser features

- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs
- `unlimitedStorage`: Store more data than the usual limit

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Web Traffic Analyzer & Geo Stats Tool](https://extensiontracker.com/extension/ghefjempjpcoemfdkecdlaafjmikiind) | 96 | – | – | Workflow & Planning |
| [Multi-Line Auto Typer](https://extensiontracker.com/extension/kdncbmnbapmijjeoendkmhmpfengiklb) | 67 | 4.00 | 2 | Tools |
| [Sellers.json Inspector](https://extensiontracker.com/extension/neboddkndfhfoeoolmdfgeelajmpdkfm) | 49 | 5.00 | 1 | Developer Tools |
| [adWMG Checker: ads.txt/sellers.json](https://extensiontracker.com/extension/gdmhmbejelimkohnpineofcgdigocdog) | 35 | 5.00 | 1 | Tools |
| [Mass Ads & App-Ads Checker](https://extensiontracker.com/extension/gmojbjflbpipemmhpbhpfhegkmoeobmg) | 17 | 5.00 | 1 | Developer Tools |
| [Programmatic ad-scanner](https://extensiontracker.com/extension/cbimifbdmnobhmnpclljjnnaggcialof) | 14 | – | – | Tools |
| [Game Store Link Extractor](https://extensiontracker.com/extension/hbgjmlebjchbpjkpddccfkebcofpfmgc) | 9 | – | – | Tools |
| [Ad Network Logger](https://extensiontracker.com/extension/obplbeempbagbggnobgechlhpldmlfll) | 9 | – | – | Tools |
| [OpenFront Donor Calc Pro](https://extensiontracker.com/extension/pnegnhghggagpfadifambjaanlkeboaj) | 5 | – | – | Tools |
| [Site Analyzer](https://extensiontracker.com/extension/kendeehbgfnaoegjlkiifabflimdonai) | 4 | – | – | Tools |

All 13 extensions by [OstinUA](https://extensiontracker.com/developer/u95260f27874296b18a47d2a9902bc52e).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 2026-11-02 05:42 UTC; next check around 2026-11-22.

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

## Cite this page

Extension Tracker. “Lines Checker: ads.txt/app-ads.txt/sellers.json” (gekfhoohhgameebogjaaocnbbdildejb). Chrome Web Store data, last checked 2026-11-02. https://extensiontracker.com/extension/gekfhoohhgameebogjaaocnbbdildejb. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_gekfhoohhgameebogjaaocnbbdildejb,
  title   = {Lines Checker: ads.txt/app-ads.txt/sellers.json (gekfhoohhgameebogjaaocnbbdildejb)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-02},
  url     = {https://extensiontracker.com/extension/gekfhoohhgameebogjaaocnbbdildejb},
  urldate = {2026-11-13}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/gekfhoohhgameebogjaaocnbbdildejb>. 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. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.
