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 check the page on your schedule and alert you when your criteria are met — no selectors, no noise.

No credit card to startCancel anytimeSet up in about 2 minutes
webmonitor.fyi / new monitor

URL to monitor

|

What to watch for

9:41

Monday, May 25

30 minFastest check frequency
< 2 minSetup time
50Checks stored per monitor
0Repeat alerts for an unchanged result

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.

1Point at a page
store.example.com/steam-deck-oled
$449.99$519.99
2Describe the change in natural language

Alert me when the price drops below $499

3We watch & alert

Price dropped to $449.99

Delivered when the check matched

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

The last 50 checks are kept for every monitor. Spot patterns, audit decisions, and refine criteria over time.

Alerts where you already work.

Email and Slack out of the box — or POST JSON to any webhook to connect the rest.

Email
Slack
Webhook
Zapier
Make
n8n
Discord
Telegram
PagerDuty

Third-party tools connect via webhooks. Logos indicate compatibility only; all trademarks belong to their respective owners.

One tool. Endless use cases.

Deal-hunter, founder, compliance lead, recruiter, superfan — whatever brought you here, point us at a page and describe what to watch in a sentence.

Price drops

Get pinged when Amazon, Best Buy, or Target dips below your target price — checks as often as every 30 minutes.

Stock availability

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

Competitor pricing

Watch rival pricing pages and plans so your own decisions stay grounded in what they actually did.

Job postings

Track the career pages that matter and catch the right role soon after it posts.

Industry news

Watch the news and press pages you choose for coverage of your company, competitors, or category.

Regulatory changes

Stay ahead of SEC filings, FDA updates, and policy revisions — we read the page and flag what changed.

Event releases

Know when tickets drop, schedules shift, or a venue quietly updates its page.

Brand mentions

Pick the review pages, forums, and threads that matter and get told when you come up.

Simple pricing. Cancel anytime.

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

Free

One monitor with a one-time AI check — upgrade for recurring monitoring.

Free
  • 1 monitor
  • One free AI analysis
  • Email & push alerts
  • No credit card required
Start free

Basic

For individuals and small projects.

$2.90/mo
  • 3 monitors
  • Checks every 6, 12, or 24 hours
  • Email, push, Slack & webhook alerts
  • Last 50 checks stored per monitor
Choose Basic
Recommended

Pro

For power users who need faster checks.

$8.45/mo
  • 5 monitors
  • All frequencies, down to every 30 minutes
  • Email, push, Slack & webhook alerts
  • Advanced fetching for hard-to-fetch pages
Go Pro

Stop refreshing the page.

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