🔍 Job search New offer added — matching your filters
🏠 Real estate New listing appeared in your area
🏛 Public tender Deadline extended; budget raised to $240,000
📦 E-commerce Price dropped from $899 to $749
✈️ Flight QF1 Status changed: Estimated → Departed 23:25
📋 Regulations Policy document updated — new section added
🚗 Classifieds New car listing matching your search criteria
💼 Job offer Salary raised; remote work option added
🔍 Job search New offer added — matching your filters
🏠 Real estate New listing appeared in your area
🏛 Public tender Deadline extended; budget raised to $240,000
📦 E-commerce Price dropped from $899 to $749
✈️ Flight QF1 Status changed: Estimated → Departed 23:25
📋 Regulations Policy document updated — new section added
🚗 Classifieds New car listing matching your search criteria
💼 Job offer Salary raised; remote work option added
Free Chrome Extension · No account required

Monitor what matters on a webpage.
Get notified when it changes.

Know when a scheduled check finds a change — a price drop, a new job offer, a tender update, or a flight delay. Page Alert checks in the background while Chrome is running, so you do not have to keep refreshing.

Add to Chrome How it works
🔒 No account required
🚫 No advertising tracking or ads
💾 Alert data stored mainly in Chrome
⚡ Works with many modern websites & SPAs
How it works
Three ways to monitor — one extension

Choose the mode that fits the page: one visible value, a repeating list, or a longer content section.

🎯
Monitor a value
Select a visible price, status, temperature, availability label, or counter. Page Alert compares the latest detected value with the saved value.
Price: $899 → $749
Status: Estimated → Departed 23:25
Stock: Out of stock → Available
Temperature: 18° → 24°C
Counter: 1,204 → 1,219 reviews
Label: Closed → Accepting applications
Rating: 4.1 → 4.6 / 5.0
Seats: 3 left → 12 available
Bid: $12,400 → $13,800
📋
Monitor a list
Set your filters, choose Monitor list manually, and select two different items from the same results list. Page Alert watches for confirmed additions and removals.
New: Cook / Chef — Full time · matches your filters
New: Audi 80 2.0 Automatic · 1993 · $12,900
New: 3-room apartment · $1,200/mo · matches search
New: Senior Developer — Remote · $95,000/yr
New: Studio flat · city centre · available now
New: Road bike, carbon frame · $1,450
New: Public tender — road works · deadline Jul 30
New: Accountant · part-time · matches filters
Removed: Software Engineer · company closed listing
🧠
Smart Content Block (AI)
Choose Monitor Smart manually and click the main heading or title. Page Alert identifies a related content block and summarizes important detected changes.
Deadline extended; budget raised by $40,000
Salary raised; remote work added
New document required; ISO cert added
Position changed from Warsaw to fully remote
Application deadline moved to August 15
Benefits updated; health insurance added
Two new sections added to the regulation
Contact person and address changed
Price list updated; three items removed
Getting started
Create your first alert in a few steps
📥
Install
Add Page Alert to Chrome. No account or email is required.
🌐
Open a page
Open a supported public website — for example a shop, job board, public portal, tracker, or news page.
👆
Click what matters
Choose a monitoring mode, follow the selection prompt, name the alert, and save it.
🔔
Get notified
Page Alert checks in the background while Chrome is running and notifies you when a scheduled check detects a change.
Use cases
What people monitor

Examples of situations where monitoring selected webpage content can reduce repeated checking.

🔍
Job search
Filter by position, city, and radius. No matches yet? Monitor the list — get notified after a scheduled check finds a new offer.
📬 notification
New item: Cook / Chef — Full time · matches your filters
🏠
Apartments & real estate
Search by area, price, and size. Page Alert watches the selected results and alerts you after a scheduled check confirms a new listing.
📬 notification
New item: 3-room apartment · $1,200/mo · matches your search
🚗
Cars & classifieds
Search for a specific model, year, or transmission. Monitor the results — don't miss the one that finally matches your criteria.
📬 notification
New item: Audi 80 2.0 Automatic · 1993 · $12,900
🏛
Public tenders & BIP
Monitor a specific tender for deadline, budget, or requirement changes. Smart follows the related content section and summarizes important detected differences.
📬 AI notification
Deadline extended to July 15; budget raised to $240,000; ISO cert required.
🏷️
Price tracking
Monitor a visible product price on a supported shop. Page Alert compares the previous and latest detected values without requiring an account on the shop.
📬 notification
Price dropped from $899.00 to $749.00.
📦
Product availability
Watch a visible availability label on a supported shop and get notified after a scheduled check detects that the item is available again.
📬 notification
Product is back in stock.
✈️
Flight status
Track a flight status page. Get notified after a scheduled check detects a departure, landing, or delay — without repeatedly refreshing.
📬 notification
Status changed: Estimated 21:02 → Delayed 21:47.
📅
Appointments & bookings
Watch a booking page for an earlier slot, a free place on a course, or an opened registration window.
📬 notification
Earlier appointment available: June 28 at 10:00.
📰
News & announcements
Monitor a regulation, press release, changelog, or another selected content section. Smart summarizes important detected changes.
📬 AI notification
New section added; publication date updated; contact details changed.
Smart Content Block
Not just "something changed."
What changed — and how.
🎯
Click the main heading. Page Alert monitors the related block.
Choose Monitor Smart manually, then click a clear main heading or title. Page Alert identifies a related content block when a reliable match can be found.
📋
Catches several changes at once
A single update can change several things — such as a deadline, budget, requirements, or benefits. Smart can highlight several important differences in one summary.
💬
Plain language. No noise.
Instead of a raw diff or wall of text, Page Alert provides a short summary in the extension language.
⚡
AI only in Smart mode
Prices, temperatures, availability, counters, and status values use rules without consuming AI credits. AI is reserved for Smart Content Block alerts.
📬 Real AI notifications — from actual monitoring
mielec.bip.gov.pl — public notice
Page Alert: Obywatelska inicjatywa
Number of signatures decreased from 1,024 to 576; resolution was not adopted; resolution from August 15 removed.
pracuj.pl — job offer
Page Alert: Job offer
Changed from hybrid work in Warsaw to remote only; Power BI knowledge now required.
ezamowienia.gov.pl — public tender
Page Alert: Public tender
Deadline extended to July 15; budget raised; ISO certification added to requirements.
⚠️ AI summaries may contain mistakes. Always verify important dates, prices, amounts, requirements, availability, and decisions on the original source page.
Pricing
Simple, transparent plans

Start free. Upgrade when you need more pages, faster checks, or AI summaries.

Free
$0
forever
No AI · local rules only
  • Up to 3 active alerts
  • 60 min check interval
  • Monitor List
  • Chrome notifications
  • No account required
  • 5-hour replacement cooldown after removing an alert
Add to Chrome
✦ START HERE
Trial
$0
7 days
✦ 2 AI credits included
  • Up to 10 saved alerts
  • 15, 30, or 60 min intervals
  • Monitor List
  • 2 shared AI Smart summaries
  • One Trial per installation
Install to start Trial
Premium
€4.99
per 30 days
✦ 150 successful AI summaries / 30 days
  • Up to 30 saved alerts
  • 15, 30, or 60 min intervals
  • Monitor List
  • 150 successful Smart AI summaries
  • One-time payment via Stripe
Get Premium →
FREE TRIAL PREMIUM
Alert limit3 active10 saved30 saved
Check interval60 min15 / 30 / 60 min15 / 30 / 60 min
Replacement after deleting an alert5-hour cooldownImmediateImmediate
Monitor List✓✓✓
AI Smart summary✗2× total150 per 30-day license
Chrome notifications✓✓✓
No account required✓✓✓
DurationForever7 days30 days

🎁 Try all features free for 7 days

Monitor List, 15-minute checks, and 2 Smart AI summaries — no payment needed. One Trial per installation; the 2-summary allowance is shared by every device using the same Trial key.

Add to Chrome — it's free →
Smart & Lists
Choose the right manual mode for the page.

Use Monitor List when you want to detect new or removed items. Use Smart when you want to understand changes inside one longer offer, announcement, document, or content section.

New or removed items → Monitor List
Changes inside one item or document → Smart
📋

Monitor List

Monitor additions and removals in a repeating list of results.

Best for: jobs, automotive listings, homes, products, classifieds, news, tenders, and other result pages.
How to create a list alert
  1. Open the webpage containing the list you want to monitor.
  2. Open Page Alert and choose Monitor list manually.
  3. Click the first list item, then click a different item from the same list.
  4. Check the preview, name the alert, and save it.
  5. Page Alert will notify you when items are added or removed.
Example notification
3 new automotive listings were added. 1 previous listing was removed.
🧠

Smart Content Block

Monitor a longer content block and receive a short explanation of what changed.

Best for: job offers, announcements, articles, regulations, tenders, terms, and longer document sections.
How to create a Smart alert
  1. Open the page containing the information you want to follow.
  2. Open Page Alert and choose Monitor Smart manually.
  3. Click the main heading or title. Page Alert then identifies the related content block.
  4. Check the preview, name the alert, and save it.
  5. When the content changes, Page Alert will summarize the important differences.
Example notification
Salary increased, remote work was added, and the application deadline moved to July 20.
⚠️ Avoid duplicate alerts. Do not save both Monitor List and Smart for the same content unless you intentionally want two separate notifications.
Features
Choose what matters. Page Alert watches the rest.

Monitor one value, a changing list, or an important section of a page — without coding or complicated setup.

🖱️
Point and click
Open a webpage, choose the information you care about, and save the alert. No CSS knowledge or technical setup required.
🔢
Monitor a single value
Watch a visible price, temperature, availability label, status, counter, deadline, or another selected piece of text on a page.
📋
Define a list manually
Select two items from the same results list to define its range. Page Alert then detects items that are added or removed.
🔔
Chrome notifications
Page Alert checks in the background while Chrome is running and sends a notification when it detects a change.
⚡
Works on modern websites
Page Alert reads the rendered page in Chrome, including many JavaScript-heavy shops, portals, trackers, and web apps.
🔒
Privacy by design
No account, no advertising profile, and no personal data sold. Alert data is stored mainly in Chrome; selected excerpts are sent externally only when Smart is used.
Useful at work, too

The same simple tool can support professional monitoring.

Businesses, journalists, freelancers, recruiters, researchers, and institutions can follow competitors, tenders, public notices, press releases, regulations, and industry pages.

Businesses Journalists Freelancers Recruiters Researchers Institutions
Mobile companion
Page Alert on your phone

Install the mobile companion to view synchronized alerts, review change history, and receive phone notifications when you are away from your computer. On supported public pages, you can also run a remote check when Chrome is offline.

🔔 Phone notifications 🕘 Alert history ☁ Remote checks 🔐 No email or password

Notifications stay under your control. Enable or disable them directly in the mobile app whenever you need.

Learn more Open mobile app

The Chrome extension remains the main tool for creating alerts and selecting webpage content. Some websites still require Chrome to be running.

Page Alert Mobile
Connected to your Chrome extension
Phone notifications Enabled
Chrome status Offline · remote check available
History Latest 100 entries
FAQ
Common questions
Page Alert works on many public websites, including JavaScript-heavy shops, job boards, portals, trackers, and government pages. Pages behind login, CAPTCHA, paywalls, or anti-bot protection may not work reliably. Page Alert opens a temporary background tab to read the selected element.
No — Page Alert uses Chrome Alarms, which require Chrome to be running. The extension checks in the background as long as Chrome is open.
Monitor List is for repeating results such as jobs, apartments, cars, products, news, or tenders. Choose Monitor list manually, click the first list item and then a different item from the same list, check the preview, and save the alert. Page Alert then watches the list and notifies you after repeated checks confirm that an item was added or removed.
Smart Content Block is for longer content where meaning matters — a job offer, tender, announcement, article, regulation, or document section. Choose Monitor Smart manually and click the main heading or title. Page Alert identifies a related content block and provides a short summary when an important change is detected.
When Smart detects a change, Page Alert sends selected content excerpts to its backend. The backend may create a rule-based summary or use the Anthropic API for interpretation. Ordinary prices, temperatures, availability, counters, and status changes do not consume AI credits. Trial includes 2 shared Smart summaries total; Premium includes 150 successful Smart summaries for each 30-day license period. AI summaries may be wrong, so verify important information on the original page.
Free alerts use a fixed 60-minute interval. Trial and Premium users can choose 15, 30, or 60 minutes per alert. Checks run while Chrome is running and may be delayed by Chrome's scheduler, sleep mode, or network conditions.
Page Alert requires no account and creates no advertising profile. Alert data is stored mainly in Chrome. After you choose “Connect and sync”, alert URLs, selectors, labels, status, short comparison values or list titles, and change messages are synchronized through the Page Alert backend and a PostgreSQL database. Selected excerpts may be sent externally for Smart analysis, and public page URLs and selectors may be processed for backend-assisted or remote checks. License, Trial, Stripe session, AI-usage, device, session, push, and synchronization records are stored through the backend. For full details, see the Privacy Policy.
Page Alert returns to Free. Your alert configurations are not deleted: up to 3 non-Smart alerts remain active, while Smart alerts and additional alerts are paused. Export includes active and paused alerts. While more than 3 alerts remain saved in Free, another paused alert cannot be resumed.
In Free, deleting an alert starts a 5-hour replacement cooldown before the freed slot can be used again. The cooldown applies only to replacing a deleted Free alert.
Premium is a one-time 30-day purchase handled by Stripe; it does not renew automatically. The 30-day period starts after successful payment when the license key is issued. Save the key shown on the confirmation page before closing it. The same key can be entered on another Chrome installation, but the original expiry date and shared 150-summary allowance do not reset.
Yes. A Premium key can be entered on any Chrome installation. It remains valid until its original 30-day expiry. A Trial key can also be reused on another device, but all devices share the same 7-day period and the same 2 AI credits — activating elsewhere never resets the clock.
Contact
Questions or feedback?

We read every message and reply personally.

📧 page.alert.app@gmail.com