# BayScope

> Listing scores, sell-through rates, keyword research & price intelligence directly on eBay.

Canonical page: [https://chrome-stats.com/d/bayscope](https://chrome-stats.com/d/bayscope)

## Overview

- **ID:** `bayscope`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Tommsel
- **Category:** search-tools,shopping
- **Daily users:** 1
- **Weekly downloads:** 1
- **Version:** 1.0.0
- **Last updated:** 2026-03-01
- **First published:** 2026-02-26
- **Size:** 545 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/bayscope/)
- **Website:** [https://tommsel.com/bayscope](https://tommsel.com/bayscope)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/bayscope/privacy/](https://addons.mozilla.org/firefox/addon/bayscope/privacy/)

## Description

BayScope analyzes eBay listings directly in your browser. Get instant insights on any product page:

<strong>Listing Score</strong> – Overall rating (0-100) based on title quality, pricing, images, shipping and more.

<strong>Price Intelligence</strong> – Compare prices across similar listings with median, range and market position.

<strong>Fee Calculator</strong> – Accurate eBay fee breakdown including final value fees, international fees and payment processing.

<strong>International Comparison</strong> – Compare prices across eBay domains (.de, .com, .co.uk, .fr, .it, .es) to find the best deals. (Pro)

<strong>Seller Tracking</strong> – Monitor competitor sellers and track their listing activity.

<strong>Keyword Research</strong> – Discover trending keywords and search volumes for your niche.

Free tier includes 10 analyses/day. Pro (€1.99/month) unlocks 100 analyses/day, international comparison, CSV export and more. 3-day free trial included.

## Rankings

- #129,553 — Overall
- #239 — ebay

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `alarms`
- `contextMenus`

### Host permissions

- `*://*.ebay.com/*`
- `*://*.ebay.de/*`
- `*://*.ebay.co.uk/*`
- `*://*.ebay.fr/*`
- `*://*.ebay.it/*`
- `*://*.ebay.es/*`
- `*://*.ebay.nl/*`
- `*://*.ebay.com.au/*`
- `*://*.ebay.ca/*`
- `*://*.ebay.at/*`
- `*://*.ebay.ch/*`
- `*://*.ebay.pl/*`
- `*://*.ebay.be/*`
- `*://*.ebay.ie/*`
- `https://extensionpay.com/api/*`

### Content script matches

- `*.ebay.at`
- `*.ebay.be`
- `*.ebay.ca`
- `*.ebay.ch`
- `*.ebay.co.uk`
- `*.ebay.com.au`
- `*.ebay.com`
- `*.ebay.de`
- `*.ebay.es`
- `*.ebay.fr`
- `*.ebay.ie`
- `*.ebay.it`
- `*.ebay.nl`
- `*.ebay.pl`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Request access to the following domains: ebay.at, ebay.be, ebay.ca, ebay.ch, co.uk, com.au, ebay.com, ebay.de, ebay.es, ebay.fr, ebay.ie, ebay.it, ebay.nl, ebay.pl, extensionpay.com
- This extension website URL may be invalid

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/bayscope)