What can I monitor with WebMonitor.fyi?

You can analyze website content for specific information like prices, product availability, job listings, news articles, event updates, competitor websites, and other web content using natural language queries.

How does the AI-powered monitoring work?

Our AI understands website content like a human would, detecting meaningful changes in prices, stock levels, content updates, and more. You can set natural language monitoring rules and receive smart notifications.

Solution

Price monitoring software for any website

Track the product pages you care about most from one dashboard. Plain-English rules, email, Slack, and webhook alerts, checks as often as every 30 minutes.

Start free How it works

Price monitoring is the practice of tracking product pricing across the web for changes — drops, increases, promotional activations, restocks. WebMonitor.fyi handles the polling, change detection, and alerting so you don't have to refresh tabs. The price monitoring tool works with any publicly accessible product page: Amazon, Walmart, Target, Best Buy, eBay, Costco, hotel booking sites, electronics retailers, fashion sites, and direct-from-brand stores. Built for shoppers waiting on a deal, resellers tracking competitor pricing, procurement teams managing supplier catalogs, and travel planners watching hotel and flight rates.

What it does

Works on any retailer page

Not limited to a curated list — any publicly accessible product URL works: major retailers, direct-from-brand stores, and niche sites alike.

Plain-English criteria

Write the rule in normal language: "alert me when this drops below $X" or "tell me when a member-only price activates". No regex, no XPath, no scripting.

Adjustable check frequency

Checks as often as every 30 minutes (Pro) for limited-time deals and restock hunting. Hourly for everyday tracking. Daily for slow-moving items. Pick per monitor.

Multi-channel delivery

Email, Slack, or a generic JSON webhook into your own tooling. Match the channel to the urgency.

Check history

The dashboard keeps the last 50 checks per monitor, each with an AI summary — see when a price moved, when a listing changed, and what the monitor saw.

No alert spam

Smart deduplication: while the price and page state stay the same, the monitor stays quiet. You only hear about it when something actually changes.

How to set it up

Add the product URL

From the dashboard, click Add New Monitor and paste any product page link.

Write the criterion

Anything from "alert me on any change" to "notify me when this drops by 15% or more and is in stock for Prime shipping". The AI parses the natural-language criterion into a watch rule.

Pick a frequency and a channel

Intervals as short as 30 minutes (Pro) for limited-time deals; hourly or daily for general tracking. Email, Slack, or webhook.

Get alerts when something changes

The alert includes a plain-English summary of what changed and a link back to the listing.

Common use cases

Personal shoppers waiting for a wish-list item to drop into budget
Resellers tracking competitor pricing for repricing decisions
Procurement teams watching supplier catalog changes
Travel planners catching hotel and flight rate drops
Deal hunters watching a shortlist of must-have products for the next drop
E-commerce brands monitoring third-party seller activity for MAP violations

Honest limits

Price monitoring is constrained by what a retailer renders publicly. Personalized prices that only show after login, A/B-tested pricing that varies by user cookie, and prices hidden behind a member portal are outside what a public-page monitor can see. For those, an authenticated integration is required, which the standard product doesn't cover.

Frequently asked questions

Is price monitoring software legal?

Reading publicly available web pages is legal under US law and most other jurisdictions. WebMonitor uses standard web requests at reasonable intervals and does not bypass paywalls or login walls — if a page sits behind one, the monitor reports it rather than working around it. Anti-scraping case law (HiQ v. LinkedIn, etc.) has generally found public-page scraping permissible. We do not, however, provide legal advice — for high-volume commercial monitoring, check with counsel.

Will retailers block the monitoring?

Aggressive sub-minute polling can trigger access limits on major retail sites. WebMonitor uses reasonable intervals (30 minutes is the fastest available) and conservative request handling so monitors stay practical for publicly available product pages.

What's the difference between price monitoring and price comparison?

Price comparison shows you the current price across multiple sites at one point in time (e.g., Google Shopping). Price monitoring tracks changes over time and alerts you when conditions are met. The two complement each other — compare once you have an alert.

How is this different from browser extensions like Honey or CamelCamelCamel?

Browser extensions are limited to specific retailers (CamelCamelCamel = Amazon only) and rely on you visiting the page. WebMonitor checks any retailer in the background at the interval you set — no browser tab required, no curation by the extension vendor.

Can I track historical pricing?

The dashboard keeps the last 50 checks for every monitor, each with an AI summary — enough to see how a price has moved recently and whether the current price is genuinely a deal vs. a manufactured discount. For multi-year price archives, a dedicated history database like CamelCamelCamel complements it.

Monitor

Try it on the page you want to monitor

Free to try. No credit card. Paste a URL, write a criterion, see the analysis.

Start free