---
title: "Website Change Monitoring: Know When Pages Change | Peekivo"
description: "Watch public pages for text, field and visual changes. Get an alert with before-and-after evidence, and let your team decide what matters."
canonical_url: https://peekivo.com/en
language: en
last_updated: 2026-10-02
---

# Know the moment a page changes.

Web monitoring that shows its evidence. Peekivo is a website change monitoring service. Describe in plain words what matters; it finds the page, shows you the rule and a past example, then watches it. Every alert arrives with before-and-after evidence.

Example: "Tell me when the Halden lamp drops below $120". The sample on the page uses fictional data.

## Website change monitoring, from a sentence to the proof.

You say what you care about. Peekivo proposes the source and the rule, you approve it, and every later read is kept with its evidence.

- **Ask in plain words.** Type what you want to know. Peekivo finds the page and checks it against a past example before anything becomes a watch.
- **Every read on the record.** A failed attempt never hides as "no change". The last attempt and the last successful read stay two separate facts.
- **See exactly what changed.** The old value, the new value, both timestamps and the rule that matched, side by side.
- **Told where you already work.** One change reaches every destination you set up. Each delivery is tracked on its own, so a failed one never hides.
- **Visual changes, not only text.** Watch a region of the page as pixels. A new banner or a moved button counts, even when the words stay the same.
- **Honest when a page fights back.** Blocked, unreadable and unknown are said out loud, never shown as healthy.

## Describe it. Check it. Approve it. Get told.

Nothing is watched until you approve it, and nothing is sent until a rule you can read says so.

1. **Describe it.** Say what you want to be told about, in your own words. A page address works too.
2. **Check the source.** Peekivo proposes the page and the exact field, and shows a past example so you can see it read the right thing.
3. **Approve the rule.** Read the rule in plain words before anything is watched. Nothing starts without your approval.
4. **Get told, with proof.** When the rule matches, the alert shows what changed, with captures from both reads.

## Built for the pages people keep refreshing.

Real public pages, asked for in plain words. Pick one to see how Peekivo reads it, spots the change and brings you the proof.

- **Restocks:** "Tell me when the Nintendo Switch 2 is back in stock at Best Buy." Source: bestbuy.com/product/switch-2-system/J7GSL57TGH. Rule: Notify when the button changes from Sold Out to Add to Cart. Checks: every 6 hours.
- **Compliance:** "Tell me when the FDA posts a new warning letter." Source: fda.gov/inspections-compliance-enforcement-and-criminal-investigations/compliance-actions-and-activities/warning-letters. Rule: Notify when a new letter is added to the list. Checks: daily.
- **Travel:** "Tell me when the State Department changes the travel advisory for Mexico." Source: cadataapi.state.gov/api/TravelAdvisories. Rule: Notify on any change to the advisory level. Checks: every 6 hours.
- **Developers:** "Tell me when OpenAI adds a new model deprecation date." Source: developers.openai.com/api/docs/deprecations. Rule: Notify when a new deprecation entry is added. Checks: every 6 hours.
- **App makers:** "Tell me when Apple changes the App Store Review Guidelines." Source: developer.apple.com/app-store/review/guidelines. Rule: Notify when any guideline text changes. Checks: daily.
- **Pricing:** "Tell me when Stripe changes its UK card fees." Source: stripe.com/gb/pricing. Rule: Notify on any change to the standard card rate. Checks: daily.

These are public pages anyone can open. Peekivo is not affiliated with them, and every change shown here is a sample.

## Sent where your team already looks.

Choose where each watch reports. Every destination is set up by you and tested before the first alert, and nothing is sent to a place you did not configure. Each one gets the change in its own form, and every delivery is tracked on its own.

- Email: requires setup
- Shared inbox: available
- Team chat: requires setup
- Webhooks: requires setup
- Phone push: planned
- API and MCP: planned

## Questions before you start

### Can every public page be read?

No. When a source cannot be read, Peekivo should show that status and its next step instead of treating it as no change.

### Does the example create a watch?

No. This page's example is synthetic. A real watch requires an explicit approval in the connected setup flow.

### What happens after a change?

The evidence and rule outcome stay visible so a team can distinguish a matching change from an unreadable source.

### Does compatibility mean the source was read?

No. Compatibility describes the input shape. Live reads are separate, scheduled checks with their own outcomes.

## Start with the one page you check every day.

Peekivo is preparing a bounded early release. Leave your email to hear when a place opens.

## Agent tools

Browsers that support WebMCP expose these tools on every public page:

- `get_product_overview`: Read-only. What Peekivo is, who it is for and its current availability.
- `get_how_it_works`: Read-only. The four steps from a typed sentence to an alert with evidence.
- `list_watch_examples`: Read-only, paginated. Example watches with source, rule and cadence.
- `get_faq`: Read-only. The questions answered on the home page.
- `list_public_pages`: Read-only, paginated. Public pages with their URL and indexing status.
- `get_page_markdown`: Read-only. The markdown twin of an approved public page.
- `get_current_page`: Read-only. The published page the person has open: its address, title and markdown address where one exists.
- `search_site`: Read-only, paginated. Search the approved public pages by title, heading and description.
- `join_waitlist`: Fills the waitlist form on the home page with an email address. Does not submit: the person must tick consent and press the join button.

Peekivo is a website change monitoring service. You describe in plain words what you want to be told about; Peekivo proposes the page and the rule, you approve it, and it watches the page and alerts you with before-and-after evidence. It is in early access with a waitlist and not generally available yet.

_Fernhill Home, Acme Analytics and Northstar Research are fictional. Sample data is labelled where it appears._