DiffsparkWebsite change monitoring
Stop checking pages. Let the important changes come to you.
A price drop, a restock, a new job, updated terms, or one block you choose.
- A price went down
- An item is back in stock
- A competitor changed the terms
- A new job was posted
- A block you picked on the page changed
See an example alert See pricing
You see the change, not the whole page
This sample shows the kind of alert a price monitor sends. It is not a screenshot from a customer account.
Email on Free. Telegram on Starter.
Price changed: $129.00 → $99.00 (-23.3%)
The subject and the first line name the change. The rest of the page stays out of the alert.
You choose what counts as a change
Menus, banners, and counters can be left out.
Whole page
Any text change on the page.
Text only
Useful when you care that a phrase appeared, such as in stock.
One block
A CSS selector, for example .price or #stock. XPath is not supported.
Price or stock
Price mode reads the price. A stock template watches for availability text.
Skip the noise
Ignore lines you name, and optionally dates, view counters, and "last updated".
JavaScript pages
Business plan can render the page in a browser before reading it. Other plans read the HTML the server returns.
Alert only when it matters
- Optional words: we notify only if the change includes one of them.
- Optional price thresholds: a minimum percent and a minimum amount. Both must be crossed. There is no "price below X" rule.
- A stock monitor tells you when availability text comes back, including a marketplace restock when we can read the price.
What you get
- Paste a URL. The first check starts right away.
- Email on every plan. Telegram from Starter. Webhook and API from Pro.
- Alerts show before and after, in English or Russian.
- The site is in English and Russian.
- Pro and Business can send the same change to a webhook or read it through the API.
For a team's public pages
Same monitors, pointed at work you already check by hand.
Price monitoring Competitors Job posts Tenders Webhook and Zapier
Free shows the latest 5 changes. Starter keeps up to 50, Pro up to 200, Business up to 1000.
Limits, in plain numbers
- Free: 3 monitors. The first checks every hour, the other two once a day. Email only. The page shows the latest 5 changes.
- Starter, $9/month: 25 monitors, from every 30 minutes, email and Telegram, up to 50 recent changes.
- Pro, $29/month: 200 monitors, from every 5 minutes, email, Telegram, webhook, and API, up to 200 recent changes.
- Business, $99/month: 1500 monitors, from every minute, plus JavaScript rendering and screenshot compare, up to 1000 recent changes.
Before you start
Can I pause a monitor?
Yes. Pause stops checks until you resume them. You can also delete a monitor.
Can I delete my account?
Yes, from Account. You confirm with your email and password. A paid plan is canceled first.
What happens to my data?
You can download account metadata and read the privacy policy. We do not sell a public customer list.
Is Telegram included for free?
No. Free alerts go to email. Telegram starts on Starter.