Vigilpost watches the pages you pick — a price, a stock count, a policy clause, a tender notice, a job post — and tells you which lines changed, not just that something did. Every check runs in your own browser, from your own IP address.
Free plan: 5 watched pages. No account required.
Watching the whole page is noisy. Watching the right four words is not.
Track everything in the main content of a page and get a line-by-line diff when anything moves.
Click the part of the page you care about — no CSS knowledge needed. Or paste a CSS selector, with up to 10 exclude selectors to filter out timestamps, "related posts" and ad slots before comparing.
Only be told when the word or phrase you care about appears, disappears or changes. Everything else stays silent.
Prices, stock counts, version strings. Vigilpost reads the formats you actually meet online — $1,234.56, 1.234,56 €, ¥1,234 — and tells you the direction it moved.
Some sources publish their changes for you. Point Vigilpost at a feed and it watches the feed instead of scraping the page.
For data that is published as a downloadable file, watch a single column and diff it on schedule.
A page that changes every few minutes makes notifications useless. Pro adds conditions, so Vigilpost only speaks up when the change matters.
| Condition you can set | What it filters out |
|---|---|
| At least N lines changed | Live counters, view counts and timestamp churn. |
| Contains / does not contain a keyword | Edits that have nothing to do with your interest. |
| The watched number moved up or down | Formatting changes that leave the value where it was. |
Changes that do not match are still written to the history — only the notification is skipped. You never lose the record.
Pro features, for when a notification in a browser tab is not where your work happens.
A single POST carrying the diff, sent to an endpoint you own — an n8n or Zapier flow, or your own server.
Your change log with timestamps, ready to hand to someone else or open in a spreadsheet.
A plain-English sentence about what changed, generated through the OpenAI-compatible endpoint you configure. Bringing your own key is the point: the page content goes from your browser to your provider, never through us.
Vigilpost has no servers of its own. Every check runs in your browser, from your own IP address, on the pages you explicitly added.
It respects robots.txt, never sends your cookies, and never stores a full copy of the page. Your watch list, snapshots and diffs stay in local storage on your device — and you can clear them whenever you want.
A page change watcher that claims to watch everything is lying to you. Here is where this one stops.
No account, no sign-in, no dashboard to visit.
Install Vigilpost from the Edge Add-ons Store. It opens as a side panel.
Open the page you care about, click the Vigilpost icon and add it — the whole page, one element, a keyword, a number, a feed or a CSV column.
Vigilpost asks permission only for the exact site you added. It checks immediately, then keeps re-checking on your schedule and notifies you when something changes.
Free to use at small scale. One payment for the full watcher — nothing renews.
Free
$0
Forever. No credit card.
Pro
$24.9 one-time
Pay once. Yours forever, including updates.
Prices in USD. One-time payment — nothing renews, nothing to cancel. Payments are processed by Creem.io as our Merchant of Record. See our Terms of Service for licence and refund details.
Short answers. If yours is not here, just email us.
No. Pro is a one-time $24.9 payment for a lifetime licence, including future updates. There is nothing to cancel and nothing renews.
No. Requests go from your browser to the site being watched, from your own IP — the same kind of request your browser already makes when you open the page. We run no servers and receive nothing. See our Privacy Policy.
The shortest interval per site is 15 minutes, Vigilpost respects robots.txt, and it never sends your cookies — so the site sees an anonymous request, not a logged-in one. If a site answers with an error, Vigilpost records it instead of hammering the page.
Snapshots, diffs and your watch list live in your browser's local storage. Uninstalling the extension removes them. There is no cloud copy, because there is no cloud.
Checkout opens on Creem in a new tab. Your activation code is emailed to you right after payment — paste it into the Vigilpost side panel and Pro unlocks. There is no account to create.
Email us and tell us what went wrong. If Pro did not do what you expected, or you were charged in error, we will make it right — including a refund where that is the right outcome. Refunds are issued through Creem to your original payment method. See our Terms of Service.