If you sell products or services with public prices, chances are someone on your team checks competitor websites from time to time to see how they are doing. It is a tedious task, easy to put off, and usually done too late, once you have already lost sales by being more expensive without knowing it. Web scraping lets you automate that monitoring: a program visits the websites for you and collects the data you care about.
What web scraping is, made simple
Scraping (from “to scrape”) means a program reads a web page just as you would in your browser, but automatically, and extracts the specific information you ask for: a price, an availability, a description.
Instead of copying thirty prices by hand every Monday, the program collects them on its own and delivers them to you neatly in a table or a panel. What used to take half a morning now happens in seconds and without transcription errors.
What an SME uses it for
Beyond prices, this automatic monitoring has very practical uses:
- Compare prices of the same products across several competitors and detect when they are undercutting you.
- Track promotions so you do not miss out on an important campaign.
- Monitor availability: if a rival has run out of stock of an item, that is your opportunity.
- Get alerts when a price drops below a certain threshold, instead of checking it yourself every day.
The idea is not to copy anyone, but to have context so you can set your own prices sensibly.
”Legal” is the key word
Here it is worth being clear: scraping is not illegal in itself, but it must be done carefully and within the rules. Doing it right means, at a minimum:
- Collecting only public data, the kind anyone can see without a password or registration.
- Respecting the terms of use of each website and the file that indicates what may be crawled.
- Not overloading other people’s servers: accessing in moderation, without firing off thousands of requests per minute.
- Not touching personal data or anything protected by copyright.
Monitoring public prices to compete better is legitimate; what is not acceptable is bombarding a website or appropriating someone else’s content.
When in doubt, the sensible thing is to ask and design the process to be respectful from the start. A good technical solution is also a prudent one.
How we build it without lock-in
There are paid services that do this, but they tend to charge for each monitored product and store your data on their servers. With open-source software you can build your own system that:
- Checks the websites you choose at whatever frequency you need.
- Stores the price history on your server, so you can see how it evolves over time.
- Sends you an email alert when it detects a relevant change.
Because it is yours, you do not pay an ever-growing fee or depend on the provider sticking around. And since the data stays at home, you keep control.
Start simple and grow
You do not need to monitor everything from day one. The reasonable approach is to start with your ten or twenty most important products, see what decisions it helps you make, and expand later. That way the system proves its usefulness early on, usually within a few weeks, before you invest more.
At Bravo IA we design this monitoring in a law-abiding, simple way, hosted on your server. If you live keeping an eye on what the competition is doing and would like to stop doing it by hand, we offer a free audit to see what would make sense to automate in your case. No strings attached.