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Competitor change intelligence

Know what your competitors
changed this week.

WebMonitor watches their pricing, product updates and hiring pages, and sends you a weekly brief on what changed and why it matters. Or watch any page you like, in plain English.

Their positioning, pricing, recent moves and hiring on one page. Or monitor any page

Free snapshot, no credit cardCancel anytimeSet up in about 2 minutes
webmonitor.fyi / new monitor

URL to monitor

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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 want to watch your whole market.

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

Starter

Keep an eye on your closest competitors.

$29/mo
  • Up to 25 tracked pages (about 3 competitors)
  • Checks every 6, 12, or 24 hours
  • Weekly AI competitor brief by email and Slack
  • Email, push, Slack & webhook alerts
Choose Starter
Recommended

Growth

For teams that sell against a crowded market.

$79/mo
  • Up to 100 tracked pages (about 10 competitors)
  • Hourly checks
  • Weekly AI competitor brief by email and Slack
  • Advanced fetching for hard-to-fetch pages
Choose Growth

Agency

For agencies and consultants tracking many markets.

$149/mo
  • Up to 250 tracked pages (about 25 competitors)
  • Hourly checks
  • Weekly AI competitor brief by email and Slack
  • Largest advanced fetching quota
Choose Agency

Stop refreshing the page.

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