How to monitor competitor prices for your online store

Start with a free, one off check

Before any tool or subscription, the fastest thing you can do is compare one of your products to a rival listing right now. The free Mue price check takes two product URLs, yours and a competitor, and reads the price and stock from each. No signup, no account. You see who is cheaper, by how much, and whether either is out of stock, in a few seconds. It is the quickest way to answer am I being undercut on this product without opening five tabs and squinting at them.

The manual approaches, and where they break

You can bookmark your three biggest rivals and check them every morning. This lasts about a week before a busy day breaks the habit. You can keep a spreadsheet of their prices, which is accurate the moment you fill it in and stale by the weekend. You can rely on noticing in your own sales data, but by then you have already lost the orders. Every manual method depends on you remembering to look, and the whole point is to not have to.

Get an email the hour a competitor changes

The reliable approach is to have something watch each competitor product page for you and email you only when the price or stock actually changes. That is what Mue Watch Business does:

• Add the competitor product URLs you care about, with your email.
• It checks each page on a schedule and compares it to the previous version.
• When a price drops, a price rises, or an item sells out, you get a short email with a one line note on what moved.

It runs on a server, so your computer does not need to be on and there is no extension to install. Volatile noise like scripts and session tokens is ignored, so a page reload does not trigger a false alarm. It starts with a free 14 day trial, and you only give us the URLs and email needed for the alerts you asked for.

What to do when a competitor undercuts you

Matching the lower price is the obvious move, but it is rarely the only one and often not the best. You can hold your price and lean on faster shipping, bundles, or the fact that you actually have it in stock when they do not. You can match for a week and watch whether it was a temporary promotion that you can simply outlast. The value of the alert is that you get to choose on your terms, the day it happens, instead of reacting late after the damage shows up in your numbers.

What to do when a competitor sells out

A rival going out of stock on a product you both carry is a quiet opportunity. Their demand has to land somewhere. Push that listing, make sure your stock and shipping promise are clear, and consider whether a small price move is worth more volume while you are the only one who can fulfil it. These windows are short, which is exactly why a same day email beats a weekly manual check.

How often should you check?

For most stores a daily check per competitor is plenty: prices and stock do not usually move more than a few times a week, and a day of lead time is already a strong position. During a sale season or a launch, tighter checks matter more, which is on the roadmap for higher tiers. Watching several rivals and several products at once is the normal case, so Mue Watch Business is built around multiple pages, not one.

See also: how to track a competitor pricing page for changes.