WebMonitor.fyi logoWebMonitor.fyi
Plain-English website monitoring

AI that watches the web
so you don't have to.

Describe a change you care about. We watch the page and alert you the moment your criteria are met — no selectors, no noise.

No credit card to startCancel anytimeLive in 30 seconds
dashboard / jobs
amazon.comActive

Alert if Steam Deck OLED drops below $499

2m ago
sec.govProcessing

New 10-K filings mentioning AI partnerships

now
ticketmaster.comActive

Floor seats released for July 14 show

14m ago

Diff-based monitors alert on any change.
We alert only on the ones that matter.

Traditional diff monitors
WebMonitor.fyi
How it detects change
Byte-level HTML diff — alerts on any pixel.
AI reads the page and decides if your criteria are met.
Setup
CSS selectors, XPath, regex rules.
A sentence: “alert me if the price drops below $50.”
Noise
Every cookie banner change wakes you up.
Only meaningful changes ping you.
Maintenance
Selectors break when sites redesign.
Plain-English criteria survives redesigns.

Three steps to a quieter inbox.

Set it up once. We check on your cadence and only ping you when something worth your time actually changes.

1. Point at a page

Paste any URL — a product page, a job board, a policy site.

2. Describe the change

Write the trigger in plain English. No selectors required.

3. We watch and alert

We re-check at your chosen frequency and alert when criteria are met.

Built for changes worth noticing.

Everything you need to monitor the web without the maintenance tax.

Plain-English criteria

Describe what to watch for in your own words. No selectors, no regex, no fragile rules to maintain.

AI that reads like a human

Our model understands semantic changes — a price drop, a new review, a stock change — not raw HTML diffs.

Context-rich alerts

Every alert explains what changed and why it matters, so you can act fast without re-investigating.

History you can learn from

Every check is preserved. Spot patterns, audit decisions, and refine criteria over time.

One tool. Endless use cases.

From deal-hunting to compliance, anything you can describe in a sentence is monitorable.

Price drops

Get pinged when Amazon, Best Buy, or Target drop below your target.

Stock availability

Track restocks on PS5s, GPUs, concert tickets — anything time-sensitive.

Competitor pricing

Monitor competitor catalogues so your pricing decisions stay grounded.

Job postings

Watch career pages and LinkedIn for the role you actually want.

Industry news

Catch coverage of your company, competitors, or category as it lands.

Regulatory changes

Stay on top of SEC filings, FDA updates, and policy revisions.

Event releases

Be first when ticket drops, schedules, or venue updates change.

Brand mentions

Watch the open web for mentions of you, your product, or your team.

Simple pricing. Cancel anytime.

Start free. Upgrade when you need more jobs or faster cadence.

Free

Try the platform with a one-shot analysis.

Free
  • 1 monitoring job
  • One-time analysis
  • Email alerts
Start free

Basic

For individuals and small projects.

$2.9/mo
  • 3 monitoring jobs
  • Daily frequency
  • Email alerts
  • Full history
Choose Basic
Most popular

Pro

For power users and teams.

$8.45/mo
  • 5 monitoring jobs
  • Up to 30-min frequency
  • Email alerts
  • Priority processing
Go Pro

Stop refreshing the page.

Tell us what to watch. We'll handle the rest — and tell you the moment it matters.